Merge pull request #16 from dmpelt/python-interface

Add Python interface

155 files changed, 15448 insertions, 9 deletions

diff --git a/build/linux/Makefile.in b/build/linux/Makefile.in
index 5b4c9fa..6620446 100644
--- a/build/linux/Makefile.in
+++ b/build/linux/Makefile.in
@@ -1,5 +1,7 @@
 cuda=@HAVECUDA@
 matlab=@HAVEMATLAB@
+python=@HAVEPYTHON@
+
 
 MATLAB_ROOT=@MATLAB_ROOT@
 
@@ -9,6 +11,10 @@ ifeq ($(matlab),yes)
 TARGETS+=mex
 endif
 
+ifeq ($(python),yes)
+TARGETS+=py
+endif
+
 all: $(TARGETS)
 
 prefix=@prefix@
@@ -40,6 +46,14 @@ CXXFLAGS+=-fopenmp
 LDFLAGS+=-fopenmp
 endif
 
+ifeq ($(python),yes)
+PYCPPFLAGS  = ${CPPFLAGS}
+PYCPPFLAGS  += -I../include
+PYLDFLAGS = ${LDFLAGS}
+PYLDFLAGS   += -L../build/linux/.libs
+PYTHON      = @PYTHON@
+endif
+
 BOOST_CPPFLAGS=
 BOOST_LDFLAGS=
 
@@ -54,7 +68,7 @@ LD=@CXX@
 SHELL=@SHELL@
 
 ifeq ($(matlab),yes)
-MEXFLAGS  = -cxx 
+MEXFLAGS  = -cxx
 MEXLDFLAGS='$$LDFLAGS $(LDFLAGS)'
 MEXLIBS   = -L.libs -lut
 MEXSUFFIX = @MEXSUFFIX@
@@ -227,6 +241,14 @@ mex: $(MATLAB_MEX)
 	$(MEX) LDFLAGS=$(MEXLDFLAGS) $(MEXFLAGS) $(LIBS) $(MEXLIBS) -lastra -output $* $*.o $(MATLAB_CXX_OBJECTS)
 endif
 
+ifeq ($(python),yes)
+py: libastra.la
+	cd ../../python; CPPFLAGS="${PYCPPFLAGS}" LDFLAGS="${PYLDFLAGS}" $(PYTHON) builder.py install \
+	--install-base=./finalbuild --install-headers=./finalbuild --install-purelib=./finalbuild \
+	--install-platlib=./finalbuild --install-scripts=./finalbuild --install-data=./finalbuild
+endif
+
+
 libastra.la: $(ALL_OBJECTS)
 	./libtool --mode=link --tag=CXX $(LD) -rpath $(LIBDIR) -o $@ $(LDFLAGS) $(LIBS) $+
 
@@ -279,6 +301,8 @@ clean:
 	rm -f $(addsuffix /*.d,$(DEPDIRS))
 	rm -f $(addsuffix /*,$(LIBDIRS))
 	rm -f $(TEST_OBJECTS) test.bin
+	rm -fr ../../python/finalbuild/
+	rm -fr ../../python/build/
 
 distclean: clean
 	rm -f config.guess config.sub ltmain.sh libtool install-sh
@@ -287,7 +311,7 @@ distclean: clean
 	rm -rf autom4te.cache
 	rm -f configure Makefile
 
-install: install-libraries install-matlab
+install: install-libraries install-matlab install-python
 
 install-libraries: libastra.la
 	./install-sh -m 755 -d @libdir@
@@ -307,6 +331,23 @@ else
 install-matlab:
 endif
 
+ifeq ($(python),yes)
+# TODO: This install location doesn't work well for /usr or /usr/local
+install-python: py
+	./install-sh -m 755 -d @prefix@/python
+	./install-sh -m 755 -d @prefix@/python/astra
+	./install-sh -m 644 ../../python/finalbuild/astra/*.so @prefix@/python/astra
+	./install-sh -m 644 ../../python/finalbuild/astra/*.py @prefix@/python/astra
+	./install-sh -m 644 ../../python/finalbuild/*.egg-info @prefix@/python/
+	@echo "++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++"
+	@echo "To use ASTRA in Python, add @prefix@/python/ to your PYTHONPATH"
+	@echo "and @libdir@ to your LD_LIBRARY_PATH."
+	@echo "++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++"
+# TODO: docs
+else
+install-python:
+endif
+
 
 Makefile: Makefile.in config.status
 	CONFIG_HEADERS= CONFIG_LINKS= CONFIG_FILES=$@ $(SHELL) ./config.status
diff --git a/build/linux/acinclude.m4 b/build/linux/acinclude.m4
index 713b5d3..e4b6de7 100644
--- a/build/linux/acinclude.m4
+++ b/build/linux/acinclude.m4
@@ -70,6 +70,18 @@ AC_DEFUN([ASTRA_RUN_LOGOUTPUT],[{
  }])
 
 
+dnl ASTRA_TRY_PYTHON(code, action-if-ok, action-if-not-ok)
+AC_DEFUN([ASTRA_TRY_PYTHON],[
+cat >conftest.py <<_ACEOF
+$1
+_ACEOF
+ASTRA_RUN_LOGOUTPUT($PYTHON conftest.py)
+AS_IF([test $? = 0],[$2],[
+  AS_ECHO(["$as_me: failed program was:"]) >&AS_MESSAGE_LOG_FD
+  sed 's/^/| /' conftest.py >&AS_MESSAGE_LOG_FD
+  $3])
+])
+
 
 dnl ASTRA_CHECK_NVCC(variable-to-set,cppflags-to-set)
 AC_DEFUN([ASTRA_CHECK_NVCC],[
diff --git a/build/linux/configure.ac b/build/linux/configure.ac
index 7397986..b97a7a0 100644
--- a/build/linux/configure.ac
+++ b/build/linux/configure.ac
@@ -1,26 +1,26 @@
 dnl -----------------------------------------------------------------------
 dnl Copyright: 2010-2015, iMinds-Vision Lab, University of Antwerp
 dnl            2014-2015, CWI, Amsterdam
-dnl 
+dnl
 dnl Contact: astra@uantwerpen.be
 dnl Website: http://sf.net/projects/astra-toolbox
-dnl 
+dnl
 dnl This file is part of the ASTRA Toolbox.
-dnl 
-dnl 
+dnl
+dnl
 dnl The ASTRA Toolbox is free software: you can redistribute it and/or modify
 dnl it under the terms of the GNU General Public License as published by
 dnl the Free Software Foundation, either version 3 of the License, or
 dnl (at your option) any later version.
-dnl 
+dnl
 dnl The ASTRA Toolbox is distributed in the hope that it will be useful,
 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 dnl GNU General Public License for more details.
-dnl 
+dnl
 dnl You should have received a copy of the GNU General Public License
 dnl along with the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
-dnl 
+dnl
 dnl -----------------------------------------------------------------------
 dnl $Id$
 
@@ -160,6 +160,54 @@ fi
 
 AC_SUBST(HAVEMATLAB)
 
+# python
+
+AC_ARG_WITH(python, [[  --with-python=path      path of Python binary (optional)]],,)
+
+HAVEPYTHON=no
+if test x"$with_python" != x -a x"$with_python" != xno; then
+  if test x"$with_python" = xyes; then
+    PYTHON=python
+  else
+    PYTHON="$with_python"
+  fi
+  AC_MSG_CHECKING(for python)
+  ASTRA_RUN_LOGOUTPUT(echo 'import sys' | $PYTHON -)
+  if test $? -ne 0; then
+    AC_MSG_ERROR(Python binary not found)]
+  fi
+  AC_MSG_RESULT([$PYTHON])
+  HAVEPYTHON=yes
+  AC_SUBST(PYTHON)
+  AC_MSG_CHECKING(for numpy module)
+  ASTRA_TRY_PYTHON([import numpy],,HAVEPYTHON=no)
+  if test x$HAVEPYTHON = xno; then
+    AC_MSG_RESULT(no)
+    AC_MSG_ERROR(You need the numpy module to use the ASTRA toolbox in Python)
+  fi
+  AC_MSG_RESULT(yes)
+  AC_MSG_CHECKING(for Cython module)
+  ASTRA_TRY_PYTHON([
+import Cython
+from distutils.version import LooseVersion
+assert(LooseVersion(Cython.__version__)>=LooseVersion("0.13"))
+],,HAVEPYTHON=no)
+  if test x$HAVEPYTHON = xno; then
+    AC_MSG_RESULT(no)
+    AC_MSG_ERROR(You need the Cython module (version >=0.13) to use the ASTRA toolbox in Python)
+  fi
+  AC_MSG_RESULT(yes)
+  AC_MSG_CHECKING(for six module)
+  ASTRA_TRY_PYTHON([import six])
+  if test x$HAVEPYTHON = xno; then
+    AC_MSG_RESULT(no)
+    AC_MSG_ERROR(You need the six module to use the ASTRA toolbox in Python)
+  fi
+  AC_MSG_RESULT(yes)
+fi
+
+AC_SUBST(HAVEPYTHON)
+
 
 # TODO:
 
@@ -181,6 +229,7 @@ echo
 echo "Summary of ASTRA Toolbox build options:"
 echo "  CUDA   : $HAVECUDA"
 echo "  Matlab : $HAVEMATLAB"
+echo "  Python : $HAVEPYTHON"
 echo
 echo "  prefix : $prefix"
 echo
diff --git a/python/COPYING b/python/COPYING
new file mode 100644
index 0000000..94a9ed0
--- /dev/null
+++ b/python/COPYING
@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
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+
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+  A patent license is "discriminatory" if it does not include within
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+
+  Nothing in this License shall be construed as excluding or limiting
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+
+  12. No Surrender of Others' Freedom.
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+  13. Use with the GNU Affero General Public License.
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+  14. Revised Versions of this License.
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+  If the Program specifies that a proxy can decide which future
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+  Later license versions may give you additional or different
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+  17. Interpretation of Sections 15 and 16.
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+                     END OF TERMS AND CONDITIONS
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+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
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+
+    <one line to give the program's name and a brief idea of what it does.>
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+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
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+    This is free software, and you are welcome to redistribute it
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+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
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+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
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+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
diff --git a/python/LICENSE b/python/LICENSE
new file mode 120000
index 0000000..d24842f
--- /dev/null
+++ b/python/LICENSE
@@ -0,0 +1 @@
+COPYING
\ No newline at end of file
diff --git a/python/astra/ASTRAProjector.py b/python/astra/ASTRAProjector.py
new file mode 100644
index 0000000..96acb10
--- /dev/null
+++ b/python/astra/ASTRAProjector.py
@@ -0,0 +1,138 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+
+import math
+from . import creators as ac
+from . import data2d
+
+
+class ASTRAProjector2DTranspose():
+    """Implements the ``proj.T`` functionality.
+
+    Do not use directly, since it can be accessed as member ``.T`` of
+    an :class:`ASTRAProjector2D` object.
+
+    """
+    def __init__(self, parentProj):
+        self.parentProj = parentProj
+
+    def __mul__(self, data):
+        return self.parentProj.backProject(data)
+
+
+class ASTRAProjector2D(object):
+    """Helps with various common ASTRA Toolbox 2D operations.
+
+    This class can perform several often used toolbox operations, such as:
+
+    * Forward projecting
+    * Back projecting
+    * Reconstructing
+
+    Note that this class has a some computational overhead, because it
+    copies a lot of data. If you use many repeated operations, directly
+    using the PyAstraToolbox methods directly is faster.
+
+    You can use this class as an abstracted weight matrix :math:`W`: multiplying an instance
+    ``proj`` of this class by an image results in a forward projection of the image, and multiplying
+    ``proj.T`` by a sinogram results in a backprojection of the sinogram::
+
+        proj = ASTRAProjector2D(...)
+        fp = proj*image
+        bp = proj.T*sinogram
+
+    :param proj_geom: The projection geometry.
+    :type proj_geom: :class:`dict`
+    :param vol_geom: The volume geometry.
+    :type vol_geom: :class:`dict`
+    :param proj_type: Projector type, such as ``'line'``, ``'linear'``, ...
+    :type proj_type: :class:`string`
+    :param useCUDA: If ``True``, use CUDA for calculations, when possible.
+    :type useCUDA: :class:`bool`
+    """
+
+    def __init__(self, proj_geom, vol_geom, proj_type, useCUDA=False):
+        self.vol_geom = vol_geom
+        self.recSize = vol_geom['GridColCount']
+        self.angles = proj_geom['ProjectionAngles']
+        self.nDet = proj_geom['DetectorCount']
+        nexpow = int(pow(2, math.ceil(math.log(2 * self.nDet, 2))))
+        self.filterSize = nexpow / 2 + 1
+        self.nProj = self.angles.shape[0]
+        self.proj_geom = proj_geom
+        self.proj_id = ac.create_projector(proj_type, proj_geom, vol_geom)
+        self.useCUDA = useCUDA
+        self.T = ASTRAProjector2DTranspose(self)
+
+    def backProject(self, data):
+        """Backproject a sinogram.
+
+        :param data: The sinogram data or ID.
+        :type data: :class:`numpy.ndarray` or :class:`int`
+        :returns: :class:`numpy.ndarray` -- The backprojection.
+
+        """
+        vol_id, vol = ac.create_backprojection(
+            data, self.proj_id, useCUDA=self.useCUDA, returnData=True)
+        data2d.delete(vol_id)
+        return vol
+
+    def forwardProject(self, data):
+        """Forward project an image.
+
+        :param data: The image data or ID.
+        :type data: :class:`numpy.ndarray` or :class:`int`
+        :returns: :class:`numpy.ndarray` -- The forward projection.
+
+        """
+        sin_id, sino = ac.create_sino(data, self.proj_id, useCUDA=self.useCUDA, returnData=True)
+        data2d.delete(sin_id)
+        return sino
+
+    def reconstruct(self, data, method, **kwargs):
+        """Reconstruct an image from a sinogram.
+
+        :param data: The sinogram data or ID.
+        :type data: :class:`numpy.ndarray` or :class:`int`
+        :param method: Name of the reconstruction algorithm.
+        :type method: :class:`string`
+        :param kwargs: Additional named parameters to pass to :func:`astra.creators.create_reconstruction`.
+        :returns: :class:`numpy.ndarray` -- The reconstruction.
+
+        Example of a SIRT reconstruction using CUDA::
+
+            proj = ASTRAProjector2D(...)
+            rec = proj.reconstruct(sinogram,'SIRT_CUDA',iterations=1000)
+
+        """
+        kwargs['returnData'] = True
+        rec_id, rec = ac.create_reconstruction(
+            method, self.proj_id, data, **kwargs)
+        data2d.delete(rec_id)
+        return rec
+
+    def __mul__(self, data):
+        return self.forwardProject(data)
diff --git a/python/astra/PyAlgorithmFactory.pxd b/python/astra/PyAlgorithmFactory.pxd
new file mode 100644
index 0000000..256d7b2
--- /dev/null
+++ b/python/astra/PyAlgorithmFactory.pxd
@@ -0,0 +1,36 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+from libcpp.string cimport string
+from libcpp cimport bool
+from .PyIncludes cimport *
+
+cdef extern from "astra/AstraObjectFactory.h" namespace "astra":
+    cdef cppclass CAlgorithmFactory:
+        CAlgorithmFactory()
+        CAlgorithm *create(string)
+
+cdef extern from "astra/AstraObjectFactory.h" namespace "astra::CAlgorithmFactory":
+    cdef CAlgorithmFactory* getSingletonPtr()
diff --git a/python/astra/PyAlgorithmManager.pxd b/python/astra/PyAlgorithmManager.pxd
new file mode 100644
index 0000000..a99a807
--- /dev/null
+++ b/python/astra/PyAlgorithmManager.pxd
@@ -0,0 +1,40 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+from libcpp.string cimport string
+from libcpp cimport bool
+from .PyIncludes cimport *
+
+cdef extern from "astra/AstraObjectManager.h" namespace "astra":
+    cdef cppclass CAlgorithmManager:
+        int store(CAlgorithm *)
+        CAlgorithm * get(int)
+        void remove(int)
+        void clear()
+        string info()
+
+cdef extern from "astra/AstraObjectManager.h" namespace "astra::CAlgorithmManager":
+    cdef CAlgorithmManager* getSingletonPtr()
+
diff --git a/python/astra/PyData2DManager.pxd b/python/astra/PyData2DManager.pxd
new file mode 100644
index 0000000..db8ec84
--- /dev/null
+++ b/python/astra/PyData2DManager.pxd
@@ -0,0 +1,39 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+from libcpp.string cimport string
+
+from .PyIncludes cimport *
+
+cdef extern from "astra/AstraObjectManager.h" namespace "astra":
+    cdef cppclass CData2DManager:
+        string info()
+        void clear()
+        void remove(int i)
+        int store(CFloat32Data2D *)
+        CFloat32Data2D * get(int i)
+
+cdef extern from "astra/AstraObjectManager.h" namespace "astra::CData2DManager":
+    cdef CData2DManager* getSingletonPtr()
diff --git a/python/astra/PyData3DManager.pxd b/python/astra/PyData3DManager.pxd
new file mode 100644
index 0000000..9264a82
--- /dev/null
+++ b/python/astra/PyData3DManager.pxd
@@ -0,0 +1,39 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+from libcpp.string cimport string
+
+from .PyIncludes cimport *
+
+cdef extern from "astra/AstraObjectManager.h" namespace "astra":
+    cdef cppclass CData3DManager:
+        string info()
+        void clear()
+        void remove(int i)
+        int store(CFloat32Data3D *)
+        CFloat32Data3D * get(int i)
+
+cdef extern from "astra/AstraObjectManager.h" namespace "astra::CData3DManager":
+    cdef CData3DManager* getSingletonPtr()
diff --git a/python/astra/PyIncludes.pxd b/python/astra/PyIncludes.pxd
new file mode 100644
index 0000000..fc5980f
--- /dev/null
+++ b/python/astra/PyIncludes.pxd
@@ -0,0 +1,215 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+from libcpp cimport bool
+from libcpp.string cimport string
+from .PyXMLDocument cimport XMLNode
+
+cdef extern from "astra/Globals.h" namespace "astra":
+	ctypedef float float32
+	ctypedef double float64
+	ctypedef unsigned short int uint16
+	ctypedef signed short int sint16
+	ctypedef unsigned char uchar8
+	ctypedef signed char schar8
+	ctypedef int int32
+	ctypedef short int int16
+
+cdef extern from "astra/Config.h" namespace "astra":
+	cdef cppclass Config:
+		Config()
+		XMLNode *self
+
+cdef extern from "astra/VolumeGeometry2D.h" namespace "astra":
+	cdef cppclass CVolumeGeometry2D:
+		bool initialize(Config)
+		int getGridColCount()
+		int getGridRowCount()
+		int getGridTotCount()
+		float32 getWindowLengthX()
+		float32 getWindowLengthY()
+		float32 getWindowArea()
+		float32 getPixelLengthX()
+		float32 getPixelLengthY()
+		float32 getPixelArea()
+		float32 getWindowMinX()
+		float32 getWindowMinY()
+		float32 getWindowMaxX()
+		float32 getWindowMaxY()
+
+
+cdef extern from "astra/Float32VolumeData2D.h" namespace "astra":
+	cdef cppclass CFloat32VolumeData2D:
+		CFloat32VolumeData2D(CVolumeGeometry2D*)
+		CVolumeGeometry2D * getGeometry()
+		int getWidth()
+		int getHeight()
+		void changeGeometry(CVolumeGeometry2D*)
+
+
+
+cdef extern from "astra/ProjectionGeometry2D.h" namespace "astra":
+	cdef cppclass CProjectionGeometry2D:
+		CProjectionGeometry2D()
+		bool initialize(Config)
+		int getDetectorCount()
+		int getProjectionAngleCount()
+		bool isOfType(string)
+		float32 getProjectionAngle(int)
+		float32 getDetectorWidth()
+
+cdef extern from "astra/Float32Data2D.h" namespace "astra::CFloat32Data2D":
+	cdef enum EDataType:
+		BASE,PROJECTION,VOLUME
+
+cdef extern from "astra/Float32Data2D.h" namespace "astra":
+	cdef cppclass CFloat32Data2D:
+		bool isInitialized()
+		int getSize()
+		float32 *getData()
+		float32 **getData2D()
+		int getWidth()
+		int getHeight()
+		EDataType getType()
+
+
+
+
+cdef extern from "astra/SparseMatrixProjectionGeometry2D.h" namespace "astra":
+	cdef cppclass CSparseMatrixProjectionGeometry2D:
+		CSparseMatrixProjectionGeometry2D()
+
+cdef extern from "astra/FanFlatProjectionGeometry2D.h" namespace "astra":
+	cdef cppclass CFanFlatProjectionGeometry2D:
+		CFanFlatProjectionGeometry2D()
+		
+cdef extern from "astra/FanFlatVecProjectionGeometry2D.h" namespace "astra":
+	cdef cppclass CFanFlatVecProjectionGeometry2D:
+		CFanFlatVecProjectionGeometry2D()
+
+cdef extern from "astra/ParallelProjectionGeometry2D.h" namespace "astra":
+	cdef cppclass CParallelProjectionGeometry2D:
+		CParallelProjectionGeometry2D()
+
+
+cdef extern from "astra/Float32ProjectionData2D.h" namespace "astra":
+	cdef cppclass CFloat32ProjectionData2D:
+		CFloat32ProjectionData2D(CProjectionGeometry2D*)
+		CProjectionGeometry2D * getGeometry()
+		void changeGeometry(CProjectionGeometry2D*)
+		int getDetectorCount()
+		int getAngleCount()
+
+cdef extern from "astra/Algorithm.h" namespace "astra":
+	cdef cppclass CAlgorithm:
+		bool initialize(Config)
+		void run(int)
+		bool isInitialized()
+
+cdef extern from "astra/ReconstructionAlgorithm2D.h" namespace "astra":
+	cdef cppclass CReconstructionAlgorithm2D:
+		bool getResidualNorm(float32&)
+
+cdef extern from "astra/Projector2D.h" namespace "astra":
+	cdef cppclass CProjector2D:
+		bool isInitialized()
+		CProjectionGeometry2D* getProjectionGeometry()
+		CVolumeGeometry2D* getVolumeGeometry()
+		CSparseMatrix* getMatrix()
+
+cdef extern from "astra/SparseMatrix.h" namespace "astra":
+	cdef cppclass CSparseMatrix:
+		CSparseMatrix(unsigned int,unsigned int,unsigned long)
+		unsigned int m_iWidth
+		unsigned int m_iHeight
+		unsigned long m_lSize
+		bool isInitialized()
+		float32* m_pfValues
+		unsigned int* m_piColIndices
+		unsigned long* m_plRowStarts
+		
+cdef extern from "astra/Float32Data3DMemory.h" namespace "astra":		
+	cdef cppclass CFloat32Data3DMemory:
+		CFloat32Data3DMemory()
+		bool isInitialized()
+		int getSize()
+		int getWidth()
+		int getHeight()
+		int getDepth()
+		void updateStatistics()
+		float32 *getData()
+		float32 ***getData3D()
+
+
+cdef extern from "astra/VolumeGeometry3D.h" namespace "astra":
+	cdef cppclass CVolumeGeometry3D:
+		CVolumeGeometry3D()
+		bool initialize(Config)
+
+cdef extern from "astra/ProjectionGeometry3D.h" namespace "astra":
+	cdef cppclass CProjectionGeometry3D:
+		CProjectionGeometry3D()
+		bool initialize(Config)
+		
+		
+cdef extern from "astra/Float32VolumeData3DMemory.h" namespace "astra":
+	cdef cppclass CFloat32VolumeData3DMemory:
+		CFloat32VolumeData3DMemory(CVolumeGeometry3D*)
+
+
+cdef extern from "astra/ParallelProjectionGeometry3D.h" namespace "astra":
+	cdef cppclass CParallelProjectionGeometry3D:
+		CParallelProjectionGeometry3D()
+
+cdef extern from "astra/ParallelVecProjectionGeometry3D.h" namespace "astra":
+	cdef cppclass CParallelVecProjectionGeometry3D:
+		CParallelVecProjectionGeometry3D()
+
+cdef extern from "astra/ConeProjectionGeometry3D.h" namespace "astra":
+	cdef cppclass CConeProjectionGeometry3D:
+		CConeProjectionGeometry3D()
+		bool initialize(Config)
+		
+cdef extern from "astra/ConeVecProjectionGeometry3D.h" namespace "astra":
+	cdef cppclass CConeVecProjectionGeometry3D:
+		CConeVecProjectionGeometry3D()
+
+cdef extern from "astra/Float32ProjectionData3DMemory.h" namespace "astra":
+	cdef cppclass CFloat32ProjectionData3DMemory:
+		CFloat32ProjectionData3DMemory(CProjectionGeometry3D*)
+		CFloat32ProjectionData3DMemory(CConeProjectionGeometry3D*)		
+
+cdef extern from "astra/Float32Data3D.h" namespace "astra":		
+	cdef cppclass CFloat32Data3D:
+		CFloat32Data3D()
+		bool isInitialized()
+		int getSize()
+		int getWidth()
+		int getHeight()
+		int getDepth()
+		void updateStatistics()
+
+
+
diff --git a/python/astra/PyMatrixManager.pxd b/python/astra/PyMatrixManager.pxd
new file mode 100644
index 0000000..b2b84c4
--- /dev/null
+++ b/python/astra/PyMatrixManager.pxd
@@ -0,0 +1,39 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+from libcpp.string cimport string
+
+from .PyIncludes cimport *
+
+cdef extern from "astra/AstraObjectManager.h" namespace "astra":
+    cdef cppclass CMatrixManager:
+        string info()
+        void clear()
+        void remove(int i)
+        int store(CSparseMatrix *)
+        CSparseMatrix * get(int i)
+
+cdef extern from "astra/AstraObjectManager.h" namespace "astra::CMatrixManager":
+    cdef CMatrixManager* getSingletonPtr()
diff --git a/python/astra/PyProjector2DFactory.pxd b/python/astra/PyProjector2DFactory.pxd
new file mode 100644
index 0000000..3314544
--- /dev/null
+++ b/python/astra/PyProjector2DFactory.pxd
@@ -0,0 +1,35 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+from libcpp.string cimport string
+from libcpp cimport bool
+from .PyIncludes cimport *
+
+cdef extern from "astra/AstraObjectFactory.h" namespace "astra":
+    cdef cppclass CProjector2DFactory:
+        CProjector2D *create(Config)
+
+cdef extern from "astra/AstraObjectFactory.h" namespace "astra::CProjector2DFactory":
+    cdef CProjector2DFactory* getSingletonPtr()
diff --git a/python/astra/PyProjector2DManager.pxd b/python/astra/PyProjector2DManager.pxd
new file mode 100644
index 0000000..92176ba
--- /dev/null
+++ b/python/astra/PyProjector2DManager.pxd
@@ -0,0 +1,39 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+from libcpp.string cimport string
+
+from .PyIncludes cimport *
+
+cdef extern from "astra/AstraObjectManager.h" namespace "astra":
+    cdef cppclass CProjector2DManager:
+        string info()
+        void clear()
+        void remove(int i)
+        int store(CProjector2D *)
+        CProjector2D * get(int i)
+
+cdef extern from "astra/AstraObjectManager.h" namespace "astra::CProjector2DManager":
+    cdef CProjector2DManager* getSingletonPtr()
diff --git a/python/astra/PyXMLDocument.pxd b/python/astra/PyXMLDocument.pxd
new file mode 100644
index 0000000..69781f1
--- /dev/null
+++ b/python/astra/PyXMLDocument.pxd
@@ -0,0 +1,65 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+# distutils: language = c++
+# distutils: libraries = astra
+
+from libcpp.string cimport string
+from libcpp cimport bool
+from libcpp.list cimport list
+from libcpp.vector cimport vector
+
+cdef extern from "astra/Globals.h" namespace "astra":
+    ctypedef float float32
+    ctypedef double float64
+    ctypedef unsigned short int uint16
+    ctypedef signed short int sint16
+    ctypedef unsigned char uchar8
+    ctypedef signed char schar8
+    ctypedef int int32
+    ctypedef short int int16
+
+cdef extern from "astra/XMLNode.h" namespace "astra":
+    cdef cppclass XMLNode:
+        string getName()
+        XMLNode *addChildNode(string name)
+        XMLNode *addChildNode(string, string)
+        void addAttribute(string, string)
+        void addAttribute(string, float32)
+        void addOption(string, string)
+        bool hasOption(string)
+        string getAttribute(string)
+        list[XMLNode *] getNodes()
+        vector[float32] getContentNumericalArray()
+        string getContent()
+        bool hasAttribute(string)
+
+cdef extern from "astra/XMLDocument.h" namespace "astra":
+    cdef cppclass XMLDocument:
+        void saveToFile(string sFilename)
+        XMLNode *getRootNode()
+        
+cdef extern from "astra/XMLDocument.h" namespace "astra::XMLDocument":
+    cdef XMLDocument *createDocument(string rootname)
diff --git a/python/astra/__init__.py b/python/astra/__init__.py
new file mode 100644
index 0000000..a61aafc
--- /dev/null
+++ b/python/astra/__init__.py
@@ -0,0 +1,42 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+from . import matlab as m
+from .creators import astra_dict,create_vol_geom, create_proj_geom, create_backprojection, create_sino, create_reconstruction, create_projector,create_sino3d_gpu, create_backprojection3d_gpu
+from .functions import data_op, add_noise_to_sino, clear, move_vol_geom
+from .extrautils import clipCircle
+from .ASTRAProjector import ASTRAProjector2D
+from . import data2d
+from . import astra
+from . import data3d
+from . import algorithm
+from . import projector
+from . import matrix
+
+import os
+try:
+    astra.set_gpu_index(int(os.environ['ASTRA_GPU_INDEX']))
+except KeyError:
+    pass
diff --git a/python/astra/algorithm.py b/python/astra/algorithm.py
new file mode 100644
index 0000000..46cfccc
--- /dev/null
+++ b/python/astra/algorithm.py
@@ -0,0 +1,76 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+
+from . import algorithm_c as a
+
+def create(config):
+    """Create algorithm object.
+    
+    :param config: Algorithm options.
+    :type config: :class:`dict`
+    :returns: :class:`int` -- the ID of the constructed object.
+    
+    """
+    return a.create(config)
+
+def run(i, iterations=1):
+    """Run an algorithm.
+    
+    :param i: ID of object.
+    :type i: :class:`int`
+    :param iterations: Number of iterations to run.
+    :type iterations: :class:`int`
+    
+    """
+    return a.run(i,iterations)
+
+def get_res_norm(i):
+    """Get residual norm of algorithm.
+    
+    :param i: ID of object.
+    :type i: :class:`int`
+    :returns: :class:`float` -- The residual norm.
+    
+    """
+    
+    return a.get_res_norm(i)
+    
+def delete(ids):
+    """Delete a matrix object.
+    
+    :param ids: ID or list of ID's to delete.
+    :type ids: :class:`int` or :class:`list`
+    
+    """
+    return a.delete(ids)
+
+def clear():
+    """Clear all matrix objects."""
+    return a.clear()
+
+def info():
+    """Print info on matrix objects in memory."""
+    return a.info()
diff --git a/python/astra/algorithm_c.pyx b/python/astra/algorithm_c.pyx
new file mode 100644
index 0000000..0c2999c
--- /dev/null
+++ b/python/astra/algorithm_c.pyx
@@ -0,0 +1,106 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+
+# distutils: language = c++
+# distutils: libraries = astra
+
+import six
+from .PyIncludes cimport *
+
+cimport PyAlgorithmManager
+from .PyAlgorithmManager cimport CAlgorithmManager
+
+cimport PyAlgorithmFactory
+from .PyAlgorithmFactory cimport CAlgorithmFactory
+
+cimport PyXMLDocument
+from .PyXMLDocument cimport XMLDocument
+
+cimport utils
+from .utils import wrap_from_bytes
+
+cdef CAlgorithmManager * manAlg = <CAlgorithmManager * >PyAlgorithmManager.getSingletonPtr()
+
+cdef extern from *:
+    CReconstructionAlgorithm2D * dynamic_cast_recAlg "dynamic_cast<CReconstructionAlgorithm2D*>" (CAlgorithm * ) except NULL
+
+
+def create(config):
+    cdef XMLDocument * xml = utils.dict2XML(six.b('Algorithm'), config)
+    cdef Config cfg
+    cdef CAlgorithm * alg
+    cfg.self = xml.getRootNode()
+    alg = PyAlgorithmFactory.getSingletonPtr().create(cfg.self.getAttribute(six.b('type')))
+    if alg == NULL:
+        del xml
+        raise Exception("Unknown algorithm.")
+    if not alg.initialize(cfg):
+        del xml
+        del alg
+        raise Exception("Algorithm not initialized.")
+    del xml
+    return manAlg.store(alg)
+
+cdef CAlgorithm * getAlg(i) except NULL:
+    cdef CAlgorithm * alg = manAlg.get(i)
+    if alg == NULL:
+        raise Exception("Unknown algorithm.")
+    if not alg.isInitialized():
+        raise Exception("Algorithm not initialized.")
+    return alg
+
+
+def run(i, iterations=0):
+    cdef CAlgorithm * alg = getAlg(i)
+    alg.run(iterations)
+
+
+def get_res_norm(i):
+    cdef CReconstructionAlgorithm2D * pAlg2D
+    cdef CAlgorithm * alg = getAlg(i)
+    cdef float32 res = 0.0
+    pAlg2D = dynamic_cast_recAlg(alg)
+    if pAlg2D == NULL:
+        raise Exception("Operation not supported.")
+    if not pAlg2D.getResidualNorm(res):
+        raise Exception("Operation not supported.")
+    return res
+
+
+def delete(ids):
+    try:
+        for i in ids:
+            manAlg.remove(i)
+    except TypeError:
+        manAlg.remove(ids)
+
+
+def clear():
+    manAlg.clear()
+
+
+def info():
+    six.print_(wrap_from_bytes(manAlg.info()))
diff --git a/python/astra/astra.py b/python/astra/astra.py
new file mode 100644
index 0000000..26b1ff0
--- /dev/null
+++ b/python/astra/astra.py
@@ -0,0 +1,58 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+
+from . import astra_c as a
+
+def credits():
+    """Print credits of the ASTRA Toolbox."""
+    return a.credits()
+
+
+def use_cuda():
+    """Test if CUDA is enabled.
+    
+    :returns: :class:`bool` -- ``True`` if CUDA is enabled.
+    """
+    return a.use_cuda()
+
+
+def version(printToScreen=False):
+    """Check version of the ASTRA Toolbox.
+    
+    :param printToScreen: If ``True``, print version string. If ``False``, return version integer.
+    :type printToScreen: :class:`bool`
+    :returns: :class:`string` or :class:`int` -- The version string or integer.
+    
+    """
+    return a.version(printToScreen)
+
+def set_gpu_index(idx):
+    """Set default GPU index to use.
+    
+    :param idx: GPU index
+    :type idx: :class:`int`
+    """
+    a.set_gpu_index(idx)
diff --git a/python/astra/astra_c.pyx b/python/astra/astra_c.pyx
new file mode 100644
index 0000000..342a214
--- /dev/null
+++ b/python/astra/astra_c.pyx
@@ -0,0 +1,79 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+# distutils: language = c++
+# distutils: libraries = astra
+
+include "config.pxi"
+import six
+from .utils import wrap_from_bytes
+
+from libcpp.string cimport string
+from libcpp cimport bool
+cdef extern from "astra/Globals.h" namespace "astra":
+    int getVersion()
+    string getVersionString()
+    bool cudaEnabled()
+
+IF HAVE_CUDA==True:
+  cdef extern from "../cuda/2d/darthelper.h" namespace "astraCUDA":
+      bool setGPUIndex(int)
+ELSE:
+  def setGPUIndex():
+    pass
+
+def credits():
+    six.print_("""
+All Scale Tomographic Reconstruction Antwerp Toolbox (ASTRA-Toolbox)
+was developed at the University of Antwerp by
+    * Prof. dr. Joost Batenburg
+    * Andrei Dabravolski
+    * Gert Merckx
+    * Willem Jan Palenstijn
+    * Tom Roelandts
+    * Prof. dr. Jan Sijbers
+    * dr. Wim van Aarle
+    * Sander van der Maar
+    * dr. Gert Van Gompel
+
+Python interface written by
+    * Daniel M. Pelt (CWI, Amsterdam)""")
+
+
+def use_cuda():
+    return cudaEnabled()
+
+
+def version(printToScreen=False):
+    if printToScreen:
+        six.print_(wrap_from_bytes(getVersionString()))
+    else:
+        return getVersion()
+
+def set_gpu_index(idx):
+    if use_cuda()==True:
+        ret = setGPUIndex(idx)
+        if not ret:
+            six.print_("Failed to set GPU " + str(idx))
diff --git a/python/astra/creators.py b/python/astra/creators.py
new file mode 100644
index 0000000..9aba464
--- /dev/null
+++ b/python/astra/creators.py
@@ -0,0 +1,563 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+
+import six
+import numpy as np
+import math
+from . import data2d
+from . import data3d
+from . import projector
+from . import algorithm
+
+def astra_dict(intype):
+    """Creates a dict to use with the ASTRA Toolbox.
+    
+    :param intype: Type of the ASTRA object.
+    :type intype: :class:`string`
+    :returns: :class:`dict` -- An ASTRA dict of type ``intype``.
+    
+    """
+    if intype == 'SIRT_CUDA2':
+        intype = 'SIRT_CUDA'
+        six.print_('SIRT_CUDA2 has been deprecated. Use SIRT_CUDA instead.')
+    elif intype == 'FP_CUDA2':
+        intype = 'FP_CUDA'
+        six.print_('FP_CUDA2 has been deprecated. Use FP_CUDA instead.')
+    return {'type': intype}
+
+def create_vol_geom(*varargin):
+    """Create a volume geometry structure.
+
+This method can be called in a number of ways:
+
+``create_vol_geom(N)``:
+    :returns: A 2D volume geometry of size :math:`N \\times N`.
+
+``create_vol_geom((M, N))``:
+    :returns: A 2D volume geometry of size :math:`M \\times N`.
+
+``create_vol_geom(M, N)``:
+    :returns: A 2D volume geometry of size :math:`M \\times N`.
+
+``create_vol_geom(M, N, minx, maxx, miny, maxy)``:
+    :returns: A 2D volume geometry of size :math:`M \\times N`, windowed as :math:`minx \\leq x \\leq maxx` and :math:`miny \\leq y \\leq maxy`.
+
+``create_vol_geom((M, N, Z))``:
+    :returns: A 3D volume geometry of size :math:`M \\times N \\times Z`.
+
+``create_vol_geom(M, N, Z)``:
+    :returns: A 3D volume geometry of size :math:`M \\times N \\times Z`.
+
+"""
+    vol_geom = {'option': {}}
+    # astra_create_vol_geom(row_count)
+    if len(varargin) == 1 and isinstance(varargin[0], int) == 1:
+        vol_geom['GridRowCount'] = varargin[0]
+        vol_geom['GridColCount'] = varargin[0]
+        vol_geom['option']['WindowMinX'] = -varargin[0] / 2.
+        vol_geom['option']['WindowMaxX'] = varargin[0] / 2.
+        vol_geom['option']['WindowMinY'] = -varargin[0] / 2.
+        vol_geom['option']['WindowMaxY'] = varargin[0] / 2.
+    # astra_create_vol_geom([row_count col_count])
+    elif len(varargin) == 1 and len(varargin[0]) == 2:
+        vol_geom['GridRowCount'] = varargin[0][0]
+        vol_geom['GridColCount'] = varargin[0][1]
+        vol_geom['option']['WindowMinX'] = -varargin[0][1] / 2.
+        vol_geom['option']['WindowMaxX'] = varargin[0][1] / 2.
+        vol_geom['option']['WindowMinY'] = -varargin[0][0] / 2.
+        vol_geom['option']['WindowMaxY'] = varargin[0][0] / 2.
+    # astra_create_vol_geom([row_count col_count slice_count])
+    elif len(varargin) == 1 and len(varargin[0]) == 3:
+        vol_geom['GridRowCount'] = varargin[0][0]
+        vol_geom['GridColCount'] = varargin[0][1]
+        vol_geom['GridSliceCount'] = varargin[0][2]
+        vol_geom['option']['WindowMinX'] = -varargin[0][1] / 2.
+        vol_geom['option']['WindowMaxX'] = varargin[0][1] / 2.
+        vol_geom['option']['WindowMinY'] = -varargin[0][0] / 2.
+        vol_geom['option']['WindowMaxY'] = varargin[0][0] / 2.
+        vol_geom['option']['WindowMinZ'] = -varargin[0][2] / 2.
+        vol_geom['option']['WindowMaxZ'] = varargin[0][2] / 2.
+    # astra_create_vol_geom(row_count, col_count)
+    elif len(varargin) == 2:
+        vol_geom['GridRowCount'] = varargin[0]
+        vol_geom['GridColCount'] = varargin[1]
+        vol_geom['option']['WindowMinX'] = -varargin[1] / 2.
+        vol_geom['option']['WindowMaxX'] = varargin[1] / 2.
+        vol_geom['option']['WindowMinY'] = -varargin[0] / 2.
+        vol_geom['option']['WindowMaxY'] = varargin[0] / 2.
+    # astra_create_vol_geom(row_count, col_count, min_x, max_x, min_y, max_y)
+    elif len(varargin) == 6:
+        vol_geom['GridRowCount'] = varargin[0]
+        vol_geom['GridColCount'] = varargin[1]
+        vol_geom['option']['WindowMinX'] = varargin[2]
+        vol_geom['option']['WindowMaxX'] = varargin[3]
+        vol_geom['option']['WindowMinY'] = varargin[4]
+        vol_geom['option']['WindowMaxY'] = varargin[5]
+    # astra_create_vol_geom(row_count, col_count, slice_count)
+    elif len(varargin) == 3:
+        vol_geom['GridRowCount'] = varargin[0]
+        vol_geom['GridColCount'] = varargin[1]
+        vol_geom['GridSliceCount'] = varargin[2]
+    return vol_geom
+
+
+def create_proj_geom(intype, *args):
+    """Create a projection geometry.
+
+This method can be called in a number of ways:
+
+``create_proj_geom('parallel', detector_spacing, det_count, angles)``:
+
+:param detector_spacing: Distance between two adjacent detector pixels.
+:type detector_spacing: :class:`float`
+:param det_count: Number of detector pixels.
+:type det_count: :class:`int`
+:param angles: Array of angles in radians.
+:type angles: :class:`numpy.ndarray`
+:returns: A parallel projection geometry.
+
+
+``create_proj_geom('fanflat', det_width, det_count, angles, source_origin, source_det)``:
+
+:param det_width: Size of a detector pixel.
+:type det_width: :class:`float`
+:param det_count: Number of detector pixels.
+:type det_count: :class:`int`
+:param angles: Array of angles in radians.
+:type angles: :class:`numpy.ndarray`
+:param source_origin: Position of the source.
+:param source_det: Position of the detector
+:returns: A fan-beam projection geometry.
+
+``create_proj_geom('fanflat_vec', det_count, V)``:
+
+:param det_count: Number of detector pixels.
+:type det_count: :class:`int`
+:param V: Vector array.
+:type V: :class:`numpy.ndarray`
+:returns: A fan-beam projection geometry.
+
+``create_proj_geom('parallel3d', detector_spacing_x, detector_spacing_y, det_row_count, det_col_count, angles)``:
+
+:param detector_spacing_*: Distance between two adjacent detector pixels.
+:type detector_spacing_*: :class:`float`
+:param det_row_count: Number of detector pixel rows.
+:type det_row_count: :class:`int`
+:param det_col_count: Number of detector pixel columns.
+:type det_col_count: :class:`int`
+:param angles: Array of angles in radians.
+:type angles: :class:`numpy.ndarray`
+:returns: A parallel projection geometry.
+
+``create_proj_geom('cone', detector_spacing_x, detector_spacing_y, det_row_count, det_col_count, angles, source_origin, source_det)``:
+
+:param detector_spacing_*: Distance between two adjacent detector pixels.
+:type detector_spacing_*: :class:`float`
+:param det_row_count: Number of detector pixel rows.
+:type det_row_count: :class:`int`
+:param det_col_count: Number of detector pixel columns.
+:type det_col_count: :class:`int`
+:param angles: Array of angles in radians.
+:type angles: :class:`numpy.ndarray`
+:param source_origin: Distance between point source and origin.
+:type source_origin: :class:`float`
+:param source_det: Distance between the detector and origin.
+:type source_det: :class:`float`
+:returns: A cone-beam projection geometry.
+
+``create_proj_geom('cone_vec', det_row_count, det_col_count, V)``:
+
+:param det_row_count: Number of detector pixel rows.
+:type det_row_count: :class:`int`
+:param det_col_count: Number of detector pixel columns.
+:type det_col_count: :class:`int`
+:param V: Vector array.
+:type V: :class:`numpy.ndarray`
+:returns: A cone-beam projection geometry.
+
+``create_proj_geom('parallel3d_vec', det_row_count, det_col_count, V)``:
+
+:param det_row_count: Number of detector pixel rows.
+:type det_row_count: :class:`int`
+:param det_col_count: Number of detector pixel columns.
+:type det_col_count: :class:`int`
+:param V: Vector array.
+:type V: :class:`numpy.ndarray`
+:returns: A parallel projection geometry.
+
+``create_proj_geom('sparse_matrix', det_width, det_count, angles, matrix_id)``:
+
+:param det_width: Size of a detector pixel.
+:type det_width: :class:`float`
+:param det_count: Number of detector pixels.
+:type det_count: :class:`int`
+:param angles: Array of angles in radians.
+:type angles: :class:`numpy.ndarray`
+:param matrix_id: ID of the sparse matrix.
+:type matrix_id: :class:`int`
+:returns: A projection geometry based on a sparse matrix.
+
+"""
+    if intype == 'parallel':
+        if len(args) < 3:
+            raise Exception(
+                'not enough variables: astra_create_proj_geom(parallel, detector_spacing, det_count, angles)')
+        return {'type': 'parallel', 'DetectorWidth': args[0], 'DetectorCount': args[1], 'ProjectionAngles': args[2]}
+    elif intype == 'fanflat':
+        if len(args) < 5:
+            raise Exception('not enough variables: astra_create_proj_geom(fanflat, det_width, det_count, angles, source_origin, source_det)')
+        return {'type': 'fanflat', 'DetectorWidth': args[0], 'DetectorCount': args[1], 'ProjectionAngles': args[2], 'DistanceOriginSource': args[3], 'DistanceOriginDetector': args[4]}
+    elif intype == 'fanflat_vec':
+        if len(args) < 2:
+            raise Exception('not enough variables: astra_create_proj_geom(fanflat_vec, det_count, V)')
+        if not args[1].shape[1] == 6:
+            raise Exception('V should be a Nx6 matrix, with N the number of projections')
+        return {'type':'fanflat_vec', 'DetectorCount':args[0], 'Vectors':args[1]}
+    elif intype == 'parallel3d':
+        if len(args) < 5:
+            raise Exception('not enough variables: astra_create_proj_geom(parallel3d, detector_spacing_x, detector_spacing_y, det_row_count, det_col_count, angles)')
+        return {'type':'parallel3d', 'DetectorSpacingX':args[0], 'DetectorSpacingY':args[1], 'DetectorRowCount':args[2], 'DetectorColCount':args[3],'ProjectionAngles':args[4]}
+    elif intype == 'cone':
+        if len(args) < 7:
+            raise Exception('not enough variables: astra_create_proj_geom(cone, detector_spacing_x, detector_spacing_y, det_row_count, det_col_count, angles, source_origin, source_det)')
+        return {'type':	'cone','DetectorSpacingX':args[0], 'DetectorSpacingY':args[1], 'DetectorRowCount':args[2],'DetectorColCount':args[3],'ProjectionAngles':args[4],'DistanceOriginSource':	args[5],'DistanceOriginDetector':args[6]}
+    elif intype == 'cone_vec':
+        if len(args) < 3:
+            raise Exception('not enough variables: astra_create_proj_geom(cone_vec, det_row_count, det_col_count, V)')
+        if not args[2].shape[1] == 12:
+            raise Exception('V should be a Nx12 matrix, with N the number of projections')
+        return {'type': 'cone_vec','DetectorRowCount':args[0],'DetectorColCount':args[1],'Vectors':args[2]}
+    elif intype == 'parallel3d_vec':
+        if len(args) < 3:
+            raise Exception('not enough variables: astra_create_proj_geom(parallel3d_vec, det_row_count, det_col_count, V)')
+        if not args[2].shape[1] == 12:
+            raise Exception('V should be a Nx12 matrix, with N the number of projections')
+        return {'type': 'parallel3d_vec','DetectorRowCount':args[0],'DetectorColCount':args[1],'Vectors':args[2]}    
+    elif intype == 'sparse_matrix':
+        if len(args) < 4:
+            raise Exception(
+                'not enough variables: astra_create_proj_geom(sparse_matrix, det_width, det_count, angles, matrix_id)')
+        return {'type': 'sparse_matrix', 'DetectorWidth': args[0], 'DetectorCount': args[1], 'ProjectionAngles': args[2], 'MatrixID': args[3]}
+    else:
+        raise Exception('Error: unknown type ' + intype) 
+
+
+def create_backprojection(data, proj_id, useCUDA=False, returnData=True):
+    """Create a backprojection of a sinogram (2D).
+
+:param data: Sinogram data or ID.
+:type data: :class:`numpy.ndarray` or :class:`int`
+:param proj_id: ID of the projector to use.
+:type proj_id: :class:`int`
+:param useCUDA: If ``True``, use CUDA for the calculation.
+:type useCUDA: :class:`bool`
+:param returnData: If False, only return the ID of the backprojection.
+:type returnData: :class:`bool`
+:returns: :class:`int` or (:class:`int`, :class:`numpy.ndarray`) -- If ``returnData=False``, returns the ID of the backprojection. Otherwise, returns a tuple containing the ID of the backprojection and the backprojection itself, in that order.
+
+"""
+    proj_geom = projector.projection_geometry(proj_id)
+    vol_geom = projector.volume_geometry(proj_id)
+    if isinstance(data, np.ndarray):
+        sino_id = data2d.create('-sino', proj_geom, data)
+    else:
+        sino_id = data
+    vol_id = data2d.create('-vol', vol_geom, 0)
+
+    algString = 'BP'
+    if useCUDA:
+        algString = algString + '_CUDA'
+
+    cfg = astra_dict(algString)
+    if not useCUDA:
+        cfg['ProjectorId'] = proj_id
+    cfg['ProjectionDataId'] = sino_id
+    cfg['ReconstructionDataId'] = vol_id
+    alg_id = algorithm.create(cfg)
+    algorithm.run(alg_id)
+    algorithm.delete(alg_id)
+
+    if isinstance(data, np.ndarray):
+        data2d.delete(sino_id)
+
+    if returnData:
+        return vol_id, data2d.get(vol_id)
+    else:
+        return vol_id
+
+def create_backprojection3d_gpu(data, proj_geom, vol_geom, returnData=True):
+    """Create a backprojection of a sinogram (3D) using CUDA.
+
+:param data: Sinogram data or ID.
+:type data: :class:`numpy.ndarray` or :class:`int`
+:param proj_geom: Projection geometry.
+:type proj_geom: :class:`dict`
+:param vol_geom: Volume geometry.
+:type vol_geom: :class:`dict`
+:param returnData: If False, only return the ID of the backprojection.
+:type returnData: :class:`bool`
+:returns: :class:`int` or (:class:`int`, :class:`numpy.ndarray`) -- If ``returnData=False``, returns the ID of the backprojection. Otherwise, returns a tuple containing the ID of the backprojection and the backprojection itself, in that order.
+
+"""
+    if isinstance(data, np.ndarray):
+        sino_id = data3d.create('-sino', proj_geom, data)
+    else:
+        sino_id = data
+
+    vol_id = data3d.create('-vol', vol_geom, 0)
+
+    cfg = astra_dict('BP3D_CUDA')
+    cfg['ProjectionDataId'] = sino_id
+    cfg['ReconstructionDataId'] = vol_id
+    alg_id = algorithm.create(cfg)
+    algorithm.run(alg_id)
+    algorithm.delete(alg_id)
+
+    if isinstance(data, np.ndarray):
+        data3d.delete(sino_id)
+
+    if returnData:
+        return vol_id, data3d.get(vol_id)
+    else:
+        return vol_id
+
+
+def create_sino(data, proj_id=None, proj_geom=None, vol_geom=None,
+                useCUDA=False, returnData=True, gpuIndex=None):
+    """Create a forward projection of an image (2D).
+
+    :param data: Image data or ID.
+    :type data: :class:`numpy.ndarray` or :class:`int`
+    :param proj_id: ID of the projector to use.
+    :type proj_id: :class:`int`
+    :param proj_geom: Projection geometry.
+    :type proj_geom: :class:`dict`
+    :param vol_geom: Volume geometry.
+    :type vol_geom: :class:`dict`
+    :param useCUDA: If ``True``, use CUDA for the calculation.
+    :type useCUDA: :class:`bool`
+    :param returnData: If False, only return the ID of the forward projection.
+    :type returnData: :class:`bool`
+    :param gpuIndex: Optional GPU index.
+    :type gpuIndex: :class:`int`
+    :returns: :class:`int` or (:class:`int`, :class:`numpy.ndarray`)
+
+    If ``returnData=False``, returns the ID of the forward
+    projection. Otherwise, returns a tuple containing the ID of the
+    forward projection and the forward projection itself, in that
+    order.
+
+    The geometry of setup is defined by ``proj_id`` or with
+    ``proj_geom`` and ``vol_geom``. If ``proj_id`` is given, then
+    ``proj_geom`` and ``vol_geom`` must be None and vice versa.
+"""
+    if proj_id is not None:
+        proj_geom = projector.projection_geometry(proj_id)
+        vol_geom = projector.volume_geometry(proj_id)
+    elif proj_geom is not None and vol_geom is not None:
+        if not useCUDA:
+            # We need more parameters to create projector.
+            raise ValueError(
+                """A ``proj_id`` is needed when CUDA is not used.""")
+    else:
+        raise Exception("""The geometry setup is not defined.
+        The geometry of setup is defined by ``proj_id`` or with
+        ``proj_geom`` and ``vol_geom``. If ``proj_id`` is given, then
+        ``proj_geom`` and ``vol_geom`` must be None and vice versa.""")
+
+    if isinstance(data, np.ndarray):
+        volume_id = data2d.create('-vol', vol_geom, data)
+    else:
+        volume_id = data
+    sino_id = data2d.create('-sino', proj_geom, 0)
+    algString = 'FP'
+    if useCUDA:
+        algString = algString + '_CUDA'
+    cfg = astra_dict(algString)
+    if not useCUDA:
+        cfg['ProjectorId'] = proj_id
+    if gpuIndex is not None:
+        cfg['option'] = {'GPUindex': gpuIndex}
+    cfg['ProjectionDataId'] = sino_id
+    cfg['VolumeDataId'] = volume_id
+    alg_id = algorithm.create(cfg)
+    algorithm.run(alg_id)
+    algorithm.delete(alg_id)
+
+    if isinstance(data, np.ndarray):
+        data2d.delete(volume_id)
+    if returnData:
+        return sino_id, data2d.get(sino_id)
+    else:
+        return sino_id
+
+
+
+def create_sino3d_gpu(data, proj_geom, vol_geom, returnData=True, gpuIndex=None):
+    """Create a forward projection of an image (3D).
+
+:param data: Image data or ID.
+:type data: :class:`numpy.ndarray` or :class:`int`
+:param proj_geom: Projection geometry.
+:type proj_geom: :class:`dict`
+:param vol_geom: Volume geometry.
+:type vol_geom: :class:`dict`
+:param returnData: If False, only return the ID of the forward projection.
+:type returnData: :class:`bool`
+:param gpuIndex: Optional GPU index.
+:type gpuIndex: :class:`int`
+:returns: :class:`int` or (:class:`int`, :class:`numpy.ndarray`) -- If ``returnData=False``, returns the ID of the forward projection. Otherwise, returns a tuple containing the ID of the forward projection and the forward projection itself, in that order.
+
+"""
+
+    if isinstance(data, np.ndarray):
+        volume_id = data3d.create('-vol', vol_geom, data)
+    else:
+        volume_id = data
+    sino_id = data3d.create('-sino', proj_geom, 0)
+    algString = 'FP3D_CUDA'
+    cfg = astra_dict(algString)
+    if not gpuIndex==None:
+        cfg['option']={'GPUindex':gpuIndex}
+    cfg['ProjectionDataId'] = sino_id
+    cfg['VolumeDataId'] = volume_id
+    alg_id = algorithm.create(cfg)
+    algorithm.run(alg_id)
+    algorithm.delete(alg_id)
+
+    if isinstance(data, np.ndarray):
+        data3d.delete(volume_id)
+    if returnData:
+        return sino_id, data3d.get(sino_id)
+    else:
+        return sino_id
+
+
+def create_reconstruction(rec_type, proj_id, sinogram, iterations=1, use_mask='no', mask=np.array([]), use_minc='no', minc=0, use_maxc='no', maxc=255, returnData=True, filterType=None, filterData=None):
+    """Create a reconstruction of a sinogram (2D).
+
+:param rec_type: Name of the reconstruction algorithm.
+:type rec_type: :class:`string`
+:param proj_id: ID of the projector to use.
+:type proj_id: :class:`int`
+:param sinogram: Sinogram data or ID.
+:type sinogram: :class:`numpy.ndarray` or :class:`int`
+:param iterations: Number of iterations to run.
+:type iterations: :class:`int`
+:param use_mask: Whether to use a mask.
+:type use_mask: ``'yes'`` or ``'no'``
+:param mask: Mask data or ID
+:type mask: :class:`numpy.ndarray` or :class:`int`
+:param use_minc: Whether to force a minimum value on the reconstruction pixels.
+:type use_minc: ``'yes'`` or ``'no'``
+:param minc: Minimum value to use.
+:type minc: :class:`float`
+:param use_maxc: Whether to force a maximum value on the reconstruction pixels.
+:type use_maxc: ``'yes'`` or ``'no'``
+:param maxc: Maximum value to use.
+:type maxc: :class:`float`
+:param returnData: If False, only return the ID of the reconstruction.
+:type returnData: :class:`bool`
+:param filterType: Which type of filter to use for filter-based methods.
+:type filterType: :class:`string`
+:param filterData: Optional filter data for filter-based methods.
+:type filterData: :class:`numpy.ndarray`
+:returns: :class:`int` or (:class:`int`, :class:`numpy.ndarray`) -- If ``returnData=False``, returns the ID of the reconstruction. Otherwise, returns a tuple containing the ID of the reconstruction and reconstruction itself, in that order.
+
+"""
+    proj_geom = projector.projection_geometry(proj_id)
+    if isinstance(sinogram, np.ndarray):
+        sino_id = data2d.create('-sino', proj_geom, sinogram)
+    else:
+        sino_id = sinogram
+    vol_geom = projector.volume_geometry(proj_id)
+    recon_id = data2d.create('-vol', vol_geom, 0)
+    cfg = astra_dict(rec_type)
+    if not 'CUDA' in rec_type:
+        cfg['ProjectorId'] = proj_id
+    cfg['ProjectionDataId'] = sino_id
+    cfg['ReconstructionDataId'] = recon_id
+    cfg['options'] = {}
+    if use_mask == 'yes':
+        if isinstance(mask, np.ndarray):
+            mask_id = data2d.create('-vol', vol_geom, mask)
+        else:
+            mask_id = mask
+        cfg['options']['ReconstructionMaskId'] = mask_id
+    if not filterType == None:
+        cfg['FilterType'] = filterType
+    if not filterData == None:
+        if isinstance(filterData, np.ndarray):
+            nexpow = int(
+                pow(2, math.ceil(math.log(2 * proj_geom['DetectorCount'], 2))))
+            filtSize = nexpow / 2 + 1
+            filt_proj_geom = create_proj_geom(
+                'parallel', 1.0, filtSize, proj_geom['ProjectionAngles'])
+            filt_id = data2d.create('-sino', filt_proj_geom, filterData)
+        else:
+            filt_id = filterData
+        cfg['FilterSinogramId'] = filt_id
+    cfg['options']['UseMinConstraint'] = use_minc
+    cfg['options']['MinConstraintValue'] = minc
+    cfg['options']['UseMaxConstraint'] = use_maxc
+    cfg['options']['MaxConstraintValue'] = maxc
+    cfg['options']['ProjectionOrder'] = 'random'
+    alg_id = algorithm.create(cfg)
+    algorithm.run(alg_id, iterations)
+
+    algorithm.delete(alg_id)
+
+    if isinstance(sinogram, np.ndarray):
+        data2d.delete(sino_id)
+    if use_mask == 'yes' and isinstance(mask, np.ndarray):
+        data2d.delete(mask_id)
+    if not filterData == None:
+        if isinstance(filterData, np.ndarray):
+            data2d.delete(filt_id)
+    if returnData:
+        return recon_id, data2d.get(recon_id)
+    else:
+        return recon_id
+
+
+def create_projector(proj_type, proj_geom, vol_geom):
+    """Create a 2D projector.
+
+:param proj_type: Projector type, such as ``'line'``, ``'linear'``, ...
+:type proj_type: :class:`string`
+:param proj_geom: Projection geometry.
+:type proj_geom: :class:`dict`
+:param vol_geom: Volume geometry.
+:type vol_geom: :class:`dict`
+:returns: :class:`int` -- The ID of the projector.
+
+"""
+    if proj_type == 'blob':
+        raise Exception('Blob type not yet implemented')
+    cfg = astra_dict(proj_type)
+    cfg['ProjectionGeometry'] = proj_geom
+    cfg['VolumeGeometry'] = vol_geom
+    return projector.create(cfg)
diff --git a/python/astra/data2d.py b/python/astra/data2d.py
new file mode 100644
index 0000000..8c4be03
--- /dev/null
+++ b/python/astra/data2d.py
@@ -0,0 +1,120 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+from . import data2d_c as d
+
+def clear():
+    """Clear all 2D data objects."""
+    return d.clear()
+
+def delete(ids):
+    """Delete a 2D object.
+    
+    :param ids: ID or list of ID's to delete.
+    :type ids: :class:`int` or :class:`list`
+    
+    """
+    return d.delete(ids)
+
+def create(datatype, geometry, data=None):
+    """Create a 2D object.
+        
+    :param datatype: Data object type, '-vol' or '-sino'.
+    :type datatype: :class:`string`
+    :param geometry: Volume or projection geometry.
+    :type geometry: :class:`dict`
+    :param data: Data to fill the constructed object with, either a scalar or array.
+    :type data: :class:`float` or :class:`numpy.ndarray`
+    :returns: :class:`int` -- the ID of the constructed object.
+    
+    """
+    return d.create(datatype,geometry,data)
+
+def store(i, data):
+    """Fill existing 2D object with data.
+    
+    :param i: ID of object to fill.
+    :type i: :class:`int`
+    :param data: Data to fill the object with, either a scalar or array.
+    :type data: :class:`float` or :class:`numpy.ndarray`
+    
+    """
+    return d.store(i, data)
+    
+def get_geometry(i):
+    """Get the geometry of a 2D object.
+    
+    :param i: ID of object.
+    :type i: :class:`int`
+    :returns: :class:`dict` -- The geometry of object with ID ``i``.
+    
+    """
+    return d.get_geometry(i)
+
+def change_geometry(i, geom):
+    """Change the geometry of a 2D object.
+    
+    :param i: ID of object.
+    :type i: :class:`int`
+    :param geom: new geometry.
+    :type geom: :class:`dict`
+    
+    """
+    return d.change_geometry(i, geom)
+    
+def get(i):
+    """Get a 2D object.
+    
+    :param i: ID of object to get.
+    :type i: :class:`int`
+    :returns: :class:`numpy.ndarray` -- The object data.
+    
+    """
+    return d.get(i)
+
+def get_shared(i):
+    """Get a 2D object with memory shared between the ASTRA toolbox and numpy array.
+    
+    :param i: ID of object to get.
+    :type i: :class:`int`
+    :returns: :class:`numpy.ndarray` -- The object data.
+    
+    """
+    return d.get_shared(i)
+
+
+def get_single(i):
+    """Get a 2D object in single precision.
+    
+    :param i: ID of object to get.
+    :type i: :class:`int`
+    :returns: :class:`numpy.ndarray` -- The object data.
+    
+    """
+    return d.get_single(i)
+
+def info():
+    """Print info on 2D objects in memory."""
+    return d.info()
diff --git a/python/astra/data2d_c.pyx b/python/astra/data2d_c.pyx
new file mode 100644
index 0000000..ec1b478
--- /dev/null
+++ b/python/astra/data2d_c.pyx
@@ -0,0 +1,241 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+# distutils: language = c++
+# distutils: libraries = astra
+
+import six
+
+cimport cython
+from cython cimport view
+
+cimport PyData2DManager
+from .PyData2DManager cimport CData2DManager
+
+cimport PyXMLDocument
+from .PyXMLDocument cimport XMLDocument
+
+import numpy as np
+
+cimport numpy as np
+np.import_array()
+
+
+from .PyIncludes cimport *
+cimport utils
+from .utils import wrap_from_bytes
+
+
+cdef CData2DManager * man2d = <CData2DManager * >PyData2DManager.getSingletonPtr()
+
+
+def clear():
+    man2d.clear()
+
+
+def delete(ids):
+    try:
+        for i in ids:
+            man2d.remove(i)
+    except TypeError:
+        man2d.remove(ids)
+
+
+def create(datatype, geometry, data=None):
+    cdef XMLDocument * xml
+    cdef Config cfg
+    cdef CVolumeGeometry2D * pGeometry
+    cdef CProjectionGeometry2D * ppGeometry
+    cdef CFloat32Data2D * pDataObject2D
+    if datatype == '-vol':
+        xml = utils.dict2XML(six.b('VolumeGeometry'), geometry)
+        cfg.self = xml.getRootNode()
+        pGeometry = new CVolumeGeometry2D()
+        if not pGeometry.initialize(cfg):
+            del xml
+            del pGeometry
+            raise Exception('Geometry class not initialized.')
+        pDataObject2D = <CFloat32Data2D * > new CFloat32VolumeData2D(pGeometry)
+        del xml
+        del pGeometry
+    elif datatype == '-sino':
+        xml = utils.dict2XML(six.b('ProjectionGeometry'), geometry)
+        cfg.self = xml.getRootNode()
+        tpe = wrap_from_bytes(cfg.self.getAttribute(six.b('type')))
+        if (tpe == 'sparse_matrix'):
+            ppGeometry = <CProjectionGeometry2D * >new CSparseMatrixProjectionGeometry2D()
+        elif (tpe == 'fanflat'):
+            ppGeometry = <CProjectionGeometry2D * >new CFanFlatProjectionGeometry2D()
+        elif (tpe == 'fanflat_vec'):
+            ppGeometry = <CProjectionGeometry2D * >new CFanFlatVecProjectionGeometry2D()
+        else:
+            ppGeometry = <CProjectionGeometry2D * >new CParallelProjectionGeometry2D()
+        if not ppGeometry.initialize(cfg):
+            del xml
+            del ppGeometry
+            raise Exception('Geometry class not initialized.')
+        pDataObject2D = <CFloat32Data2D * > new CFloat32ProjectionData2D(ppGeometry)
+        del ppGeometry
+        del xml
+    else:
+        raise Exception("Invalid datatype.  Please specify '-vol' or '-sino'.")
+
+    if not pDataObject2D.isInitialized():
+        del pDataObject2D
+        raise Exception("Couldn't initialize data object.")
+
+    fillDataObject(pDataObject2D, data)
+
+    return man2d.store(pDataObject2D)
+
+cdef fillDataObject(CFloat32Data2D * obj, data):
+    if data is None:
+        fillDataObjectScalar(obj, 0)
+    else:
+        if isinstance(data, np.ndarray):
+            fillDataObjectArray(obj, np.ascontiguousarray(data,dtype=np.float32))
+        else:
+            fillDataObjectScalar(obj, np.float32(data))
+
+cdef fillDataObjectScalar(CFloat32Data2D * obj, float s):
+    cdef int i
+    for i in range(obj.getSize()):
+        obj.getData()[i] = s
+
+@cython.boundscheck(False)
+@cython.wraparound(False)
+cdef fillDataObjectArray(CFloat32Data2D * obj, float [:,::1] data):
+    if (not data.shape[0] == obj.getHeight()) or (not data.shape[1] == obj.getWidth()):
+        raise Exception(
+            "The dimensions of the data do not match those specified in the geometry.")
+    cdef float [:,::1] cView =  <float[:data.shape[0],:data.shape[1]]> obj.getData2D()[0]
+    cView[:] = data
+
+cdef CFloat32Data2D * getObject(i) except NULL:
+    cdef CFloat32Data2D * pDataObject = man2d.get(i)
+    if pDataObject == NULL:
+        raise Exception("Data object not found")
+    if not pDataObject.isInitialized():
+        raise Exception("Data object not initialized properly.")
+    return pDataObject
+
+
+def store(i, data):
+    cdef CFloat32Data2D * pDataObject = getObject(i)
+    fillDataObject(pDataObject, data)
+
+
+def get_geometry(i):
+    cdef CFloat32Data2D * pDataObject = getObject(i)
+    cdef CFloat32ProjectionData2D * pDataObject2
+    cdef CFloat32VolumeData2D * pDataObject3
+    if pDataObject.getType() == PROJECTION:
+        pDataObject2 = <CFloat32ProjectionData2D * >pDataObject
+        geom = utils.createProjectionGeometryStruct(pDataObject2.getGeometry())
+    elif pDataObject.getType() == VOLUME:
+        pDataObject3 = <CFloat32VolumeData2D * >pDataObject
+        geom = utils.createVolumeGeometryStruct(pDataObject3.getGeometry())
+    else:
+        raise Exception("Not a known data object")
+    return geom
+
+
+def change_geometry(i, geom):
+    cdef XMLDocument * xml
+    cdef Config cfg
+    cdef CVolumeGeometry2D * pGeometry
+    cdef CProjectionGeometry2D * ppGeometry
+    cdef CFloat32Data2D * pDataObject = getObject(i)
+    cdef CFloat32ProjectionData2D * pDataObject2
+    cdef CFloat32VolumeData2D * pDataObject3
+    if pDataObject.getType() == PROJECTION:
+        pDataObject2 = <CFloat32ProjectionData2D * >pDataObject
+        xml = utils.dict2XML(six.b('ProjectionGeometry'), geom)
+        cfg.self = xml.getRootNode()
+        tpe = wrap_from_bytes(cfg.self.getAttribute(six.b('type')))
+        if (tpe == 'sparse_matrix'):
+            ppGeometry = <CProjectionGeometry2D * >new CSparseMatrixProjectionGeometry2D()
+        elif (tpe == 'fanflat'):
+            ppGeometry = <CProjectionGeometry2D * >new CFanFlatProjectionGeometry2D()
+        elif (tpe == 'fanflat_vec'):
+            ppGeometry = <CProjectionGeometry2D * >new CFanFlatVecProjectionGeometry2D()
+        else:
+            ppGeometry = <CProjectionGeometry2D * >new CParallelProjectionGeometry2D()
+        if not ppGeometry.initialize(cfg):
+            del xml
+            del ppGeometry
+            raise Exception('Geometry class not initialized.')
+        if (ppGeometry.getDetectorCount() != pDataObject2.getDetectorCount() or ppGeometry.getProjectionAngleCount() != pDataObject2.getAngleCount()):
+            del ppGeometry
+            del xml
+            raise Exception(
+                "The dimensions of the data do not match those specified in the geometry.")
+        pDataObject2.changeGeometry(ppGeometry)
+        del ppGeometry
+        del xml
+    elif pDataObject.getType() == VOLUME:
+        pDataObject3 = <CFloat32VolumeData2D * >pDataObject
+        xml = utils.dict2XML(six.b('VolumeGeometry'), geom)
+        cfg.self = xml.getRootNode()
+        pGeometry = new CVolumeGeometry2D()
+        if not pGeometry.initialize(cfg):
+            del xml
+            del pGeometry
+            raise Exception('Geometry class not initialized.')
+        if (pGeometry.getGridColCount() != pDataObject3.getWidth() or pGeometry.getGridRowCount() != pDataObject3.getHeight()):
+            del xml
+            del pGeometry
+            raise Exception(
+                'The dimensions of the data do not match those specified in the geometry.')
+        pDataObject3.changeGeometry(pGeometry)
+        del xml
+        del pGeometry
+    else:
+        raise Exception("Not a known data object")
+
+@cython.boundscheck(False)
+@cython.wraparound(False)
+def get(i):
+    cdef CFloat32Data2D * pDataObject = getObject(i)
+    outArr = np.empty((pDataObject.getHeight(), pDataObject.getWidth()),dtype=np.float32,order='C')
+    cdef float [:,::1] mView = outArr
+    cdef float [:,::1] cView =  <float[:outArr.shape[0],:outArr.shape[1]]> pDataObject.getData2D()[0]
+    mView[:] = cView
+    return outArr
+
+def get_shared(i):
+    cdef CFloat32Data2D * pDataObject = getObject(i)
+    cdef np.npy_intp shape[2]
+    shape[0] = <np.npy_intp> pDataObject.getHeight()
+    shape[1] = <np.npy_intp> pDataObject.getWidth()
+    return np.PyArray_SimpleNewFromData(2,shape,np.NPY_FLOAT32,<void *>pDataObject.getData2D()[0])
+
+
+def get_single(i):
+    raise Exception("Not yet implemented")
+
+
+def info():
+    six.print_(wrap_from_bytes(man2d.info()))
diff --git a/python/astra/data3d.py b/python/astra/data3d.py
new file mode 100644
index 0000000..33bde51
--- /dev/null
+++ b/python/astra/data3d.py
@@ -0,0 +1,108 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+from . import data3d_c as d
+
+def create(datatype,geometry,data=None):
+    """Create a 3D object.
+        
+    :param datatype: Data object type, '-vol' or '-sino'.
+    :type datatype: :class:`string`
+    :param geometry: Volume or projection geometry.
+    :type geometry: :class:`dict`
+    :param data: Data to fill the constructed object with, either a scalar or array.
+    :type data: :class:`float` or :class:`numpy.ndarray`
+    :returns: :class:`int` -- the ID of the constructed object.
+    
+    """
+    return d.create(datatype,geometry,data)
+
+def get(i):
+    """Get a 3D object.
+    
+    :param i: ID of object to get.
+    :type i: :class:`int`
+    :returns: :class:`numpy.ndarray` -- The object data.
+    
+    """
+    return d.get(i)
+
+def get_shared(i):
+    """Get a 3D object with memory shared between the ASTRA toolbox and numpy array.
+    
+    :param i: ID of object to get.
+    :type i: :class:`int`
+    :returns: :class:`numpy.ndarray` -- The object data.
+    
+    """
+    return d.get_shared(i)
+
+def get_single(i):
+    """Get a 3D object in single precision.
+    
+    :param i: ID of object to get.
+    :type i: :class:`int`
+    :returns: :class:`numpy.ndarray` -- The object data.
+    
+    """
+    return g.get_single(i)
+
+def store(i,data):
+    """Fill existing 3D object with data.
+    
+    :param i: ID of object to fill.
+    :type i: :class:`int`
+    :param data: Data to fill the object with, either a scalar or array.
+    :type data: :class:`float` or :class:`numpy.ndarray`
+    
+    """
+    return d.store(i,data)
+
+def dimensions(i):
+    """Get dimensions of a 3D object.
+    
+    :param i: ID of object.
+    :type i: :class:`int`
+    :returns: :class:`tuple` -- dimensions of object with ID ``i``.
+    
+    """
+    return d.dimensions(i)
+
+def delete(ids):
+    """Delete a 2D object.
+    
+    :param ids: ID or list of ID's to delete.
+    :type ids: :class:`int` or :class:`list`
+    
+    """
+    return d.delete(ids)
+
+def clear():
+    """Clear all 3D data objects."""
+    return d.clear()
+
+def info():
+    """Print info on 3D objects in memory."""
+    return d.info()
diff --git a/python/astra/data3d_c.pyx b/python/astra/data3d_c.pyx
new file mode 100644
index 0000000..f821aaf
--- /dev/null
+++ b/python/astra/data3d_c.pyx
@@ -0,0 +1,188 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+# distutils: language = c++
+# distutils: libraries = astra
+
+import six
+
+cimport cython
+
+cimport PyData3DManager
+from .PyData3DManager cimport CData3DManager
+
+from .PyIncludes cimport *
+import numpy as np
+
+cimport numpy as np
+np.import_array()
+
+cimport PyXMLDocument
+from .PyXMLDocument cimport XMLDocument
+
+cimport utils
+from .utils import wrap_from_bytes
+
+cdef CData3DManager * man3d = <CData3DManager * >PyData3DManager.getSingletonPtr()
+
+cdef extern from *:
+    CFloat32Data3DMemory * dynamic_cast_mem "dynamic_cast<astra::CFloat32Data3DMemory*>" (CFloat32Data3D * ) except NULL
+
+def create(datatype,geometry,data=None):
+    cdef XMLDocument * xml
+    cdef Config cfg
+    cdef CVolumeGeometry3D * pGeometry
+    cdef CProjectionGeometry3D * ppGeometry
+    cdef CFloat32Data3DMemory * pDataObject3D
+    cdef CConeProjectionGeometry3D* pppGeometry
+    if datatype == '-vol':
+        xml = utils.dict2XML(six.b('VolumeGeometry'), geometry)
+        cfg.self = xml.getRootNode()
+        pGeometry = new CVolumeGeometry3D()
+        if not pGeometry.initialize(cfg):
+            del xml
+            del pGeometry
+            raise Exception('Geometry class not initialized.')
+        pDataObject3D = <CFloat32Data3DMemory * > new CFloat32VolumeData3DMemory(pGeometry)
+        del xml
+        del pGeometry
+    elif datatype == '-sino' or datatype == '-proj3d':
+        xml = utils.dict2XML(six.b('ProjectionGeometry'), geometry)
+        cfg.self = xml.getRootNode()
+        tpe = wrap_from_bytes(cfg.self.getAttribute(six.b('type')))
+        if (tpe == "parallel3d"):
+            ppGeometry = <CProjectionGeometry3D*> new CParallelProjectionGeometry3D();
+        elif (tpe == "parallel3d_vec"):
+            ppGeometry = <CProjectionGeometry3D*> new CParallelVecProjectionGeometry3D();
+        elif (tpe == "cone"):
+            ppGeometry = <CProjectionGeometry3D*> new CConeProjectionGeometry3D();
+        elif (tpe == "cone_vec"):
+            ppGeometry = <CProjectionGeometry3D*> new CConeVecProjectionGeometry3D();
+        else:
+            raise Exception("Invalid geometry type.")
+
+        if not ppGeometry.initialize(cfg):
+            del xml
+            del ppGeometry
+            raise Exception('Geometry class not initialized.')
+        pDataObject3D = <CFloat32Data3DMemory * > new CFloat32ProjectionData3DMemory(ppGeometry)
+        del ppGeometry
+        del xml
+    elif datatype == "-sinocone":
+        xml = utils.dict2XML(six.b('ProjectionGeometry'), geometry)
+        cfg.self = xml.getRootNode()
+        pppGeometry = new CConeProjectionGeometry3D()
+        if not pppGeometry.initialize(cfg):
+            del xml
+            del pppGeometry
+            raise Exception('Geometry class not initialized.')
+        pDataObject3D = <CFloat32Data3DMemory * > new CFloat32ProjectionData3DMemory(pppGeometry)
+    else:
+        raise Exception("Invalid datatype.  Please specify '-vol' or '-proj3d'.")
+
+    if not pDataObject3D.isInitialized():
+        del pDataObject3D
+        raise Exception("Couldn't initialize data object.")
+
+    fillDataObject(pDataObject3D, data)
+
+    pDataObject3D.updateStatistics()
+
+    return man3d.store(<CFloat32Data3D*>pDataObject3D)
+
+
+cdef fillDataObject(CFloat32Data3DMemory * obj, data):
+    if data is None:
+        fillDataObjectScalar(obj, 0)
+    else:
+        if isinstance(data, np.ndarray):
+            fillDataObjectArray(obj, np.ascontiguousarray(data,dtype=np.float32))
+        else:
+            fillDataObjectScalar(obj, np.float32(data))
+
+cdef fillDataObjectScalar(CFloat32Data3DMemory * obj, float s):
+    cdef int i
+    for i in range(obj.getSize()):
+        obj.getData()[i] = s
+
+@cython.boundscheck(False)
+@cython.wraparound(False)
+cdef fillDataObjectArray(CFloat32Data3DMemory * obj, float [:,:,::1] data):
+    if (not data.shape[0] == obj.getDepth()) or (not data.shape[1] == obj.getHeight()) or (not data.shape[2] == obj.getWidth()):
+        raise Exception(
+            "The dimensions of the data do not match those specified in the geometry.")
+    cdef float [:,:,::1] cView = <float[:data.shape[0],:data.shape[1],:data.shape[2]]> obj.getData3D()[0][0]
+    cView[:] = data
+
+cdef CFloat32Data3D * getObject(i) except NULL:
+    cdef CFloat32Data3D * pDataObject = man3d.get(i)
+    if pDataObject == NULL:
+        raise Exception("Data object not found")
+    if not pDataObject.isInitialized():
+        raise Exception("Data object not initialized properly.")
+    return pDataObject
+
+@cython.boundscheck(False)
+@cython.wraparound(False)
+def get(i):
+    cdef CFloat32Data3DMemory * pDataObject = dynamic_cast_mem(getObject(i))
+    outArr = np.empty((pDataObject.getDepth(),pDataObject.getHeight(), pDataObject.getWidth()),dtype=np.float32,order='C')
+    cdef float [:,:,::1] mView = outArr
+    cdef float [:,:,::1] cView = <float[:outArr.shape[0],:outArr.shape[1],:outArr.shape[2]]> pDataObject.getData3D()[0][0]
+    mView[:] = cView
+    return outArr
+
+def get_shared(i):
+    cdef CFloat32Data3DMemory * pDataObject = dynamic_cast_mem(getObject(i))
+    outArr = np.empty((pDataObject.getDepth(),pDataObject.getHeight(), pDataObject.getWidth()),dtype=np.float32,order='C')
+    cdef np.npy_intp shape[3]
+    shape[0] = <np.npy_intp> pDataObject.getDepth()
+    shape[1] = <np.npy_intp> pDataObject.getHeight()
+    shape[2] = <np.npy_intp> pDataObject.getWidth()
+    return np.PyArray_SimpleNewFromData(3,shape,np.NPY_FLOAT32,<void *>pDataObject.getData3D()[0][0])
+
+def get_single(i):
+    raise Exception("Not yet implemented")
+
+def store(i,data):
+    cdef CFloat32Data3D * pDataObject = getObject(i)
+    fillDataObject(dynamic_cast_mem(pDataObject), data)
+
+def dimensions(i):
+    cdef CFloat32Data3D * pDataObject = getObject(i)
+    return (pDataObject.getWidth(),pDataObject.getHeight(),pDataObject.getDepth())
+
+def delete(ids):
+    try:
+        for i in ids:
+            man3d.remove(i)
+    except TypeError:
+        man3d.remove(ids)
+
+def clear():
+    man3d.clear()
+
+def info():
+    six.print_(wrap_from_bytes(man3d.info()))
diff --git a/python/astra/extrautils.pyx b/python/astra/extrautils.pyx
new file mode 100644
index 0000000..998f5cb
--- /dev/null
+++ b/python/astra/extrautils.pyx
@@ -0,0 +1,43 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+
+def clipCircle(img):
+	cdef int i,j
+	cdef double x2,y2,mid,bnd
+	cdef long sz,sz2
+	sz = img.shape[0]
+	sz2 = sz*sz
+	bnd = sz2/4.
+	mid = (sz-1.)/2.
+	nDel=0
+	for i in range(sz):
+		for j in range(sz):
+			x2 = (i-mid)*(i-mid)
+			y2 = (j-mid)*(j-mid)
+			if x2+y2>bnd:
+				img[i,j]=0
+				nDel=nDel+1
+	return nDel
diff --git a/python/astra/functions.py b/python/astra/functions.py
new file mode 100644
index 0000000..4025468
--- /dev/null
+++ b/python/astra/functions.py
@@ -0,0 +1,270 @@
+#-----------------------------------------------------------------------
+# Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+# Author: Daniel M. Pelt
+# Contact: D.M.Pelt@cwi.nl
+# Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+# This file is part of the Python interface to the
+# All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+# The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+# The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+"""Additional functions for PyAstraToolbox.
+
+.. moduleauthor:: Daniel M. Pelt <D.M.Pelt@cwi.nl>
+
+
+"""
+
+from . import creators as ac
+import numpy as np
+from six.moves import range
+
+from . import data2d
+from . import data3d
+from . import projector
+from . import algorithm
+
+
+
+def clear():
+    """Clears all used memory of the ASTRA Toolbox.
+
+    .. note::
+        This is irreversible.
+
+    """
+    data2d.clear()
+    data3d.clear()
+    projector.clear()
+    algorithm.clear()
+
+
+def data_op(op, data, scalar, gpu_core, mask=None):
+    """Perform data operation on data.
+
+    :param op: Operation to perform.
+    :param data: Data to perform operation on.
+    :param scalar: Scalar argument to data operation.
+    :param gpu_core: GPU core to perform operation on.
+    :param mask: Optional mask.
+
+    """
+
+    cfg = ac.astra_dict('DataOperation_CUDA')
+    cfg['Operation'] = op
+    cfg['Scalar'] = scalar
+    cfg['DataId'] = data
+    if not mask == None:
+        cfg['MaskId'] = mask
+    cfg['option']['GPUindex'] = gpu_core
+    alg_id = algorithm.create(cfg)
+    algorithm.run(alg_id)
+    algorithm.delete(alg_id)
+
+
+def add_noise_to_sino(sinogram_in, I0, seed=None):
+    """Adds Poisson noise to a sinogram.
+
+    :param sinogram_in: Sinogram to add noise to.
+    :type sinogram_in: :class:`numpy.ndarray`
+    :param I0: Background intensity. Lower values lead to higher noise.
+    :type I0: :class:`float`
+    :returns:  :class:`numpy.ndarray` -- the sinogram with added noise.
+
+    """
+
+    if not seed==None:
+        curstate = np.random.get_state()
+        np.random.seed(seed)
+
+    if isinstance(sinogram_in, np.ndarray):
+        sinogramRaw = sinogram_in
+    else:
+        sinogramRaw = data2d.get(sinogram_in)
+    max_sinogramRaw = sinogramRaw.max()
+    sinogramRawScaled = sinogramRaw / max_sinogramRaw
+    # to detector count
+    sinogramCT = I0 * np.exp(-sinogramRawScaled)
+    # add poison noise
+    sinogramCT_C = np.zeros_like(sinogramCT)
+    for i in range(sinogramCT_C.shape[0]):
+        for j in range(sinogramCT_C.shape[1]):
+            sinogramCT_C[i, j] = np.random.poisson(sinogramCT[i, j])
+    # to density
+    sinogramCT_D = sinogramCT_C / I0
+    sinogram_out = -max_sinogramRaw * np.log(sinogramCT_D)
+
+    if not isinstance(sinogram_in, np.ndarray):
+        at.data2d.store(sinogram_in, sinogram_out)
+
+    if not seed==None:
+        np.random.set_state(curstate)
+
+    return sinogram_out
+
+def move_vol_geom(geom, pos, is_relative=False):
+    """Moves center of volume geometry to new position.
+
+    :param geom: Input volume geometry
+    :type geom: :class:`dict`
+    :param pos: Tuple (x,y[,z]) for new position, with the center of the image at (0,0[,0])
+    :type pos: :class:`tuple`
+    :param is_relative: Whether new position is relative to the old position
+    :type is_relative: :class:`bool`
+    :returns: :class:`dict` -- Volume geometry with the new center
+    """
+
+    ret_geom = geom.copy()
+    ret_geom['option'] = geom['option'].copy()
+
+    if not is_relative:
+        ret_geom['option']['WindowMinX'] = -geom['GridColCount']/2.
+        ret_geom['option']['WindowMaxX'] = geom['GridColCount']/2.
+        ret_geom['option']['WindowMinY'] = -geom['GridRowCount']/2.
+        ret_geom['option']['WindowMaxY'] = geom['GridRowCount']/2.
+        if len(pos)>2:
+            ret_geom['option']['WindowMinZ'] = -geom['GridSliceCount']/2.
+            ret_geom['option']['WindowMaxZ'] = geom['GridSliceCount']/2.
+    ret_geom['option']['WindowMinX'] += pos[0]
+    ret_geom['option']['WindowMaxX'] += pos[0]
+    ret_geom['option']['WindowMinY'] += pos[1]
+    ret_geom['option']['WindowMaxY'] += pos[1]
+    if len(pos)>2:
+        ret_geom['option']['WindowMinZ'] += pos[2]
+        ret_geom['option']['WindowMaxZ'] += pos[2]
+    return ret_geom
+
+
+def geom_size(geom, dim=None):
+    """Returns the size of a volume or sinogram, based on the projection or volume geometry.
+
+    :param geom: Geometry to calculate size from
+    :type geometry: :class:`dict`
+    :param dim: Optional axis index to return
+    :type dim: :class:`int`
+    """
+
+    if 'GridSliceCount' in geom:
+        # 3D Volume geometry?
+        s = (geom['GridSliceCount'], geom[
+             'GridRowCount'], geom['GridColCount'])
+    elif 'GridColCount' in geom:
+        # 2D Volume geometry?
+        s = (geom['GridRowCount'], geom['GridColCount'])
+    elif geom['type'] == 'parallel' or geom['type'] == 'fanflat':
+        s = (len(geom['ProjectionAngles']), geom['DetectorCount'])
+    elif geom['type'] == 'parallel3d' or geom['type'] == 'cone':
+        s = (geom['DetectorRowCount'], len(
+            geom['ProjectionAngles']), geom['DetectorColCount'])
+    elif geom['type'] == 'fanflat_vec':
+        s = (geom['Vectors'].shape[0], geom['DetectorCount'])
+    elif geom['type'] == 'parallel3d_vec' or geom['type'] == 'cone_vec':
+        s = (geom['DetectorRowCount'], geom[
+             'Vectors'].shape[0], geom['DetectorColCount'])
+
+    if dim != None:
+        s = s[dim]
+
+    return s
+
+
+def geom_2vec(proj_geom):
+    """Returns a vector-based projection geometry from a basic projection geometry.
+
+    :param proj_geom: Projection geometry to convert
+    :type proj_geom: :class:`dict`
+    """
+    if proj_geom['type'] == 'fanflat':
+        angles = proj_geom['ProjectionAngles']
+        vectors = np.zeros((len(angles), 6))
+        for i in range(len(angles)):
+
+            # source
+            vectors[i, 0] = np.sin(angles[i]) * proj_geom['DistanceOriginSource']
+            vectors[i, 1] = -np.cos(angles[i]) * proj_geom['DistanceOriginSource']
+
+            # center of detector
+            vectors[i, 2] = -np.sin(angles[i]) * proj_geom['DistanceOriginDetector']
+            vectors[i, 3] = np.cos(angles[i]) * proj_geom['DistanceOriginDetector']
+
+            # vector from detector pixel 0 to 1
+            vectors[i, 4] = np.cos(angles[i]) * proj_geom['DetectorWidth']
+            vectors[i, 5] = np.sin(angles[i]) * proj_geom['DetectorWidth']
+        proj_geom_out = ac.create_proj_geom(
+        'fanflat_vec', proj_geom['DetectorCount'], vectors)
+
+    elif proj_geom['type'] == 'cone':
+        angles = proj_geom['ProjectionAngles']
+        vectors = np.zeros((len(angles), 12))
+        for i in range(len(angles)):
+            # source
+            vectors[i, 0] = np.sin(angles[i]) * proj_geom['DistanceOriginSource']
+            vectors[i, 1] = -np.cos(angles[i]) * proj_geom['DistanceOriginSource']
+            vectors[i, 2] = 0
+
+            # center of detector
+            vectors[i, 3] = -np.sin(angles[i]) * proj_geom['DistanceOriginDetector']
+            vectors[i, 4] = np.cos(angles[i]) * proj_geom['DistanceOriginDetector']
+            vectors[i, 5] = 0
+
+            # vector from detector pixel (0,0) to (0,1)
+            vectors[i, 6] = np.cos(angles[i]) * proj_geom['DetectorSpacingX']
+            vectors[i, 7] = np.sin(angles[i]) * proj_geom['DetectorSpacingX']
+            vectors[i, 8] = 0
+
+            # vector from detector pixel (0,0) to (1,0)
+            vectors[i, 9] = 0
+            vectors[i, 10] = 0
+            vectors[i, 11] = proj_geom['DetectorSpacingY']
+
+        proj_geom_out = ac.create_proj_geom(
+        'cone_vec', proj_geom['DetectorRowCount'], proj_geom['DetectorColCount'], vectors)
+
+    # PARALLEL
+    elif proj_geom['type'] == 'parallel3d':
+        angles = proj_geom['ProjectionAngles']
+        vectors = np.zeros((len(angles), 12))
+        for i in range(len(angles)):
+
+            # ray direction
+            vectors[i, 0] = np.sin(angles[i])
+            vectors[i, 1] = -np.cos(angles[i])
+            vectors[i, 2] = 0
+
+            # center of detector
+            vectors[i, 3] = 0
+            vectors[i, 4] = 0
+            vectors[i, 5] = 0
+
+            # vector from detector pixel (0,0) to (0,1)
+            vectors[i, 6] = np.cos(angles[i]) * proj_geom['DetectorSpacingX']
+            vectors[i, 7] = np.sin(angles[i]) * proj_geom['DetectorSpacingX']
+            vectors[i, 8] = 0
+
+            # vector from detector pixel (0,0) to (1,0)
+            vectors[i, 9] = 0
+            vectors[i, 10] = 0
+            vectors[i, 11] = proj_geom['DetectorSpacingY']
+
+        proj_geom_out = ac.create_proj_geom(
+        'parallel3d_vec', proj_geom['DetectorRowCount'], proj_geom['DetectorColCount'], vectors)
+
+    else:
+        raise ValueError(
+        'No suitable vector geometry found for type: ' + proj_geom['type'])
+    return proj_geom_out
diff --git a/python/astra/matlab.py b/python/astra/matlab.py
new file mode 100644
index 0000000..83b345d
--- /dev/null
+++ b/python/astra/matlab.py
@@ -0,0 +1,112 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+"""This module implements a MATLAB-like interface to the ASTRA Toolbox.
+
+Note that all functions are called with a :class:`string` as the first
+argument, specifying the operation to perform. This un-pythonic way
+is used to make transitioning from MATLAB code to Python code easier, as
+the MATLAB interface uses the same type of method calling.
+
+After an initial ``import astra``, these functions can be accessed in the
+``astra.m`` module.
+
+"""
+
+from . import astra_c
+from . import data2d_c
+from . import data3d_c
+from . import projector_c
+from . import algorithm_c
+from . import matrix_c
+import numpy as np
+
+
+def astra(command, *args):
+    """MATLAB-like interface to the :mod:`astra.astra` module
+    
+    For example:
+    
+    ``astra.m.astra('use_cuda')`` -- Check if CUDA is enabled.
+    
+    """
+    return getattr(astra_c, command)(*args)
+
+
+def data2d(command, *args):
+    """MATLAB-like interface to the :mod:`astra.data2d` module
+    
+    For example:
+    
+    ``astra.m.data2d('create',type,geometry,data)`` -- Create a 2D object.
+    
+    """
+    return getattr(data2d_c, command)(*args)
+
+
+def data3d(command, *args):
+    """MATLAB-like interface to the :mod:`astra.data3d` module
+    
+    For example:
+    
+    ``astra.m.data3d('get',i)`` -- Get 3D object data.
+    
+    """
+    return getattr(data3d_c, command)(*args)
+
+
+def projector(command, *args):
+    """MATLAB-like interface to the :mod:`astra.projector` module
+    
+    For example:
+    
+    ``astra.m.projector('volume_geometry',i)`` -- Get volume geometry.
+    
+    """
+    return getattr(projector_c, command)(*args)
+
+
+def matrix(command, *args):
+    """MATLAB-like interface to the :mod:`astra.matrix` module
+    
+    For example:
+    
+    ``astra.m.matrix('delete',i)`` -- Delete a matrix.
+    
+    """
+    return getattr(matrix_c, command)(*args)
+
+
+def algorithm(command, *args):
+    """MATLAB-like interface to the :mod:`astra.algorithm` module
+    
+    For example:
+    
+    ``astra.m.algorithm('run',i,1000)`` -- Run an algorithm with 1000 iterations.
+    
+    """
+    if command == 'iterate':
+        command = 'run'
+    return getattr(algorithm_c, command)(*args)
diff --git a/python/astra/matrix.py b/python/astra/matrix.py
new file mode 100644
index 0000000..27e4823
--- /dev/null
+++ b/python/astra/matrix.py
@@ -0,0 +1,86 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+from . import matrix_c as m
+
+def delete(ids):
+    """Delete a matrix object.
+    
+    :param ids: ID or list of ID's to delete.
+    :type ids: :class:`int` or :class:`list`
+    
+    """
+    return m.delete(ids)
+
+def clear():
+    """Clear all matrix objects."""
+    return m.clear()
+
+def create(data):
+    """Create matrix object with data.
+    
+    :param data: Data to fill the created object with.
+    :type data: :class:`scipy.sparse.csr_matrix`
+    :returns: :class:`int` -- the ID of the constructed object.
+    
+    """
+    return m.create(data)
+
+    
+def store(i,data):
+    """Fill existing matrix object with data.
+    
+    :param i: ID of object to fill.
+    :type i: :class:`int`
+    :param data: Data to fill the object with.
+    :type data: :class:`scipy.sparse.csr_matrix`
+    
+    """
+    return m.store(i,data)
+
+def get_size(i):
+    """Get matrix dimensions.
+    
+    :param i: ID of object.
+    :type i: :class:`int`
+    :returns: :class:`tuple` -- matrix dimensions.
+    """
+    return m.get_size(i)
+    
+def get(i):
+    """Get a matrix object.
+    
+    :param i: ID of object to get.
+    :type i: :class:`int`
+    :returns: :class:`scipy.sparse.csr_matrix` --  The object data.
+    
+    """
+    return m.get(i)
+
+def info():
+    """Print info on matrix objects in memory."""
+    return m.info()
+    
+        
diff --git a/python/astra/matrix_c.pyx b/python/astra/matrix_c.pyx
new file mode 100644
index 0000000..b0d8bc4
--- /dev/null
+++ b/python/astra/matrix_c.pyx
@@ -0,0 +1,116 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+# distutils: language = c++
+# distutils: libraries = astra
+
+import six
+from six.moves import range
+import numpy as np
+import scipy.sparse as ss
+
+from libcpp cimport bool
+
+cimport PyMatrixManager
+from .PyMatrixManager cimport CMatrixManager
+from .PyIncludes cimport *
+from .utils import wrap_from_bytes
+
+cdef CMatrixManager * manM = <CMatrixManager * >PyMatrixManager.getSingletonPtr()
+
+
+def delete(ids):
+    try:
+        for i in ids:
+            manM.remove(i)
+    except TypeError:
+        manM.remove(ids)
+
+def clear():
+    manM.clear()
+
+cdef int csr_matrix_to_astra(data,CSparseMatrix *mat) except -1:
+    if isinstance(data,ss.csr_matrix):
+        csrD = data
+    else:
+        csrD = data.tocsr()
+    if not mat.isInitialized():
+        raise Exception("Couldn't initialize data object.")
+    if csrD.nnz > mat.m_lSize or csrD.shape[0] > mat.m_iHeight:
+        raise Exception("Matrix too large to store in this object.")
+    for i in range(len(csrD.indptr)):
+        mat.m_plRowStarts[i] = csrD.indptr[i]
+    for i in range(csrD.nnz):
+        mat.m_piColIndices[i] = csrD.indices[i]
+        mat.m_pfValues[i] = csrD.data[i]
+
+cdef astra_to_csr_matrix(CSparseMatrix *mat):
+    indptr = np.zeros(mat.m_iHeight+1,dtype=np.int)
+    indices = np.zeros(mat.m_plRowStarts[mat.m_iHeight],dtype=np.int)
+    data = np.zeros(mat.m_plRowStarts[mat.m_iHeight])
+    for i in range(mat.m_iHeight+1):
+        indptr[i] = mat.m_plRowStarts[i]
+    for i in range(mat.m_plRowStarts[mat.m_iHeight]):
+        indices[i] = mat.m_piColIndices[i]
+        data[i] = mat.m_pfValues[i]
+    return ss.csr_matrix((data,indices,indptr),shape=(mat.m_iHeight,mat.m_iWidth))
+
+def create(data):
+    cdef CSparseMatrix* pMatrix
+    pMatrix = new CSparseMatrix(data.shape[0], data.shape[1], data.nnz)
+    if not pMatrix.isInitialized():
+        del pMatrix
+        raise Exception("Couldn't initialize data object.")
+    try:
+        csr_matrix_to_astra(data,pMatrix)
+    except:
+        del pMatrix
+        raise Exception("Failed to create data object.")
+
+    return manM.store(pMatrix)
+
+cdef CSparseMatrix * getObject(i) except NULL:
+    cdef CSparseMatrix * pDataObject = manM.get(i)
+    if pDataObject == NULL:
+        raise Exception("Data object not found")
+    if not pDataObject.isInitialized():
+        raise Exception("Data object not initialized properly.")
+    return pDataObject
+
+
+def store(i,data):
+    cdef CSparseMatrix * pDataObject = getObject(i)
+    csr_matrix_to_astra(data,pDataObject)
+
+def get_size(i):
+    cdef CSparseMatrix * pDataObject = getObject(i)
+    return (pDataObject.m_iHeight,pDataObject.m_iWidth)
+
+def get(i):
+    cdef CSparseMatrix * pDataObject = getObject(i)
+    return astra_to_csr_matrix(pDataObject)
+
+def info():
+    six.print_(wrap_from_bytes(manM.info()))
diff --git a/python/astra/projector.py b/python/astra/projector.py
new file mode 100644
index 0000000..c916c52
--- /dev/null
+++ b/python/astra/projector.py
@@ -0,0 +1,100 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+from . import projector_c as p
+
+def create(config):
+    """Create projector object.
+    
+    :param config: Projector options.
+    :type config: :class:`dict`
+    :returns: :class:`int` -- the ID of the constructed object.
+    
+    """
+    return p.create(config)
+
+
+def delete(ids):
+    """Delete a projector object.
+    
+    :param ids: ID or list of ID's to delete.
+    :type ids: :class:`int` or :class:`list`
+    
+    """
+    return p.delete(ids)
+
+
+def clear():
+    """Clear all projector objects."""
+    return p.clear()
+
+
+def info():
+    """Print info on projector objects in memory."""
+    return p.info()
+
+def projection_geometry(i):
+    """Get projection geometry of a projector.
+    
+    :param i: ID of projector.
+    :type i: :class:`int`
+    :returns: :class:`dict` -- projection geometry
+    
+    """
+    return p.projection_geometry(i)
+
+
+def volume_geometry(i):
+    """Get volume geometry of a projector.
+    
+    :param i: ID of projector.
+    :type i: :class:`int`
+    :returns: :class:`dict` -- volume geometry
+    
+    """
+    return p.volume_geometry(i)
+
+
+def weights_single_ray(i, projection_index, detector_index):
+    return p.weights_single_ray(i, projection_index, detector_index)
+
+
+def weights_projection(i, projection_index):
+    return p.weights_projection(i, projection_index)
+
+
+def splat(i, row, col):
+    return p.splat(i, row, col)
+
+
+def matrix(i):
+    """Get sparse matrix of a projector.
+    
+    :param i: ID of projector.
+    :type i: :class:`int`
+    :returns: :class:`int` -- ID of sparse matrix.
+    
+    """
+    return p.matrix(i)
diff --git a/python/astra/projector_c.pyx b/python/astra/projector_c.pyx
new file mode 100644
index 0000000..978ca09
--- /dev/null
+++ b/python/astra/projector_c.pyx
@@ -0,0 +1,119 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+# distutils: language = c++
+# distutils: libraries = astra
+
+import six
+from .PyIncludes cimport *
+
+cimport utils
+from .utils import wrap_from_bytes
+
+cimport PyProjector2DFactory
+from .PyProjector2DFactory cimport CProjector2DFactory
+
+cimport PyProjector2DManager
+from .PyProjector2DManager cimport CProjector2DManager
+
+cimport PyXMLDocument
+from .PyXMLDocument cimport XMLDocument
+
+cimport PyMatrixManager
+from .PyMatrixManager cimport CMatrixManager
+
+cdef CProjector2DManager * manProj = <CProjector2DManager * >PyProjector2DManager.getSingletonPtr()
+cdef CMatrixManager * manM = <CMatrixManager * >PyMatrixManager.getSingletonPtr()
+
+
+def create(config):
+    cdef XMLDocument * xml = utils.dict2XML(six.b('Projector2D'), config)
+    cdef Config cfg
+    cdef CProjector2D * proj
+    cfg.self = xml.getRootNode()
+    proj = PyProjector2DFactory.getSingletonPtr().create(cfg)
+    if proj == NULL:
+        del xml
+        raise Exception("Error creating projector.")
+    del xml
+    return manProj.store(proj)
+
+
+def delete(ids):
+    try:
+        for i in ids:
+            manProj.remove(i)
+    except TypeError:
+        manProj.remove(ids)
+
+
+def clear():
+    manProj.clear()
+
+
+def info():
+    six.print_(wrap_from_bytes(manProj.info()))
+
+cdef CProjector2D * getObject(i) except NULL:
+    cdef CProjector2D * proj = manProj.get(i)
+    if proj == NULL:
+        raise Exception("Projector not initialized.")
+    if not proj.isInitialized():
+        raise Exception("Projector not initialized.")
+    return proj
+
+
+def projection_geometry(i):
+    cdef CProjector2D * proj = getObject(i)
+    return utils.createProjectionGeometryStruct(proj.getProjectionGeometry())
+
+
+def volume_geometry(i):
+    cdef CProjector2D * proj = getObject(i)
+    return utils.createVolumeGeometryStruct(proj.getVolumeGeometry())
+
+
+def weights_single_ray(i, projection_index, detector_index):
+    raise Exception("Not yet implemented")
+
+
+def weights_projection(i, projection_index):
+    raise Exception("Not yet implemented")
+
+
+def splat(i, row, col):
+    raise Exception("Not yet implemented")
+
+
+def matrix(i):
+    cdef CProjector2D * proj = getObject(i)
+    cdef CSparseMatrix * mat = proj.getMatrix()
+    if mat == NULL:
+        del mat
+        raise Exception("Data object not found")
+    if not mat.isInitialized():
+        del mat
+        raise Exception("Data object not initialized properly.")
+    return manM.store(mat)
diff --git a/python/astra/utils.pxd b/python/astra/utils.pxd
new file mode 100644
index 0000000..55db9d3
--- /dev/null
+++ b/python/astra/utils.pxd
@@ -0,0 +1,37 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+from libcpp.string cimport string
+
+cimport PyXMLDocument
+from .PyXMLDocument cimport XMLDocument
+from .PyXMLDocument cimport XMLNode
+
+from .PyIncludes cimport *
+
+cdef XMLDocument *dict2XML(string rootname, dc)
+cdef XML2dict(XMLDocument *)
+cdef createVolumeGeometryStruct(CVolumeGeometry2D* geom)
+cdef createProjectionGeometryStruct(CProjectionGeometry2D* geom)
diff --git a/python/astra/utils.pyx b/python/astra/utils.pyx
new file mode 100644
index 0000000..53e84a9
--- /dev/null
+++ b/python/astra/utils.pyx
@@ -0,0 +1,260 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+# distutils: language = c++
+# distutils: libraries = astra
+
+import numpy as np
+import six
+from libcpp.string cimport string
+from libcpp.list cimport list
+from libcpp.vector cimport vector
+from cython.operator cimport dereference as deref
+from cpython.version cimport PY_MAJOR_VERSION
+
+cimport PyXMLDocument
+from .PyXMLDocument cimport XMLDocument
+from .PyXMLDocument cimport XMLNode
+from .PyIncludes cimport *
+
+
+cdef XMLDocument * dict2XML(string rootname, dc):
+    cdef XMLDocument * doc = PyXMLDocument.createDocument(rootname)
+    cdef XMLNode * node = doc.getRootNode()
+    try:
+        readDict(node, dc)
+    except:
+        six.print_('Error reading XML')
+        del doc
+        doc = NULL
+    finally:
+        del node
+    return doc
+
+def convert_item(item):
+    if isinstance(item, six.string_types):
+        return item.encode('ascii')
+
+    if type(item) is not dict:
+        return item
+
+    out_dict = {}
+    for k in item:
+        out_dict[convert_item(k)] = convert_item(item[k])
+    return out_dict
+
+
+def wrap_to_bytes(value):
+    if isinstance(value, six.binary_type):
+        return value
+    s = str(value)
+    if PY_MAJOR_VERSION == 3:
+        s = s.encode('ascii')
+    return s
+
+
+def wrap_from_bytes(value):
+    s = value
+    if PY_MAJOR_VERSION == 3:
+        s = s.decode('ascii')
+    return s
+
+
+cdef void readDict(XMLNode * root, _dc):
+    cdef XMLNode * listbase
+    cdef XMLNode * itm
+    cdef int i
+    cdef int j
+
+    dc = convert_item(_dc)
+    for item in dc:
+        val = dc[item]
+        if isinstance(val, np.ndarray):
+            if val.size == 0:
+                break
+            listbase = root.addChildNode(item)
+            listbase.addAttribute(< string > six.b('listsize'), < float32 > val.size)
+            index = 0
+            if val.ndim == 2:
+                for i in range(val.shape[0]):
+                    for j in range(val.shape[1]):
+                        itm = listbase.addChildNode(six.b('ListItem'))
+                        itm.addAttribute(< string > six.b('index'), < float32 > index)
+                        itm.addAttribute( < string > six.b('value'), < float32 > val[i, j])
+                        index += 1
+                        del itm
+            elif val.ndim == 1:
+                for i in range(val.shape[0]):
+                    itm = listbase.addChildNode(six.b('ListItem'))
+                    itm.addAttribute(< string > six.b('index'), < float32 > index)
+                    itm.addAttribute(< string > six.b('value'), < float32 > val[i])
+                    index += 1
+                    del itm
+            else:
+                raise Exception("Only 1 or 2 dimensions are allowed")
+            del listbase
+        elif isinstance(val, dict):
+            if item == six.b('option') or item == six.b('options') or item == six.b('Option') or item == six.b('Options'):
+                readOptions(root, val)
+            else:
+                itm = root.addChildNode(item)
+                readDict(itm, val)
+                del itm
+        else:
+            if item == six.b('type'):
+                root.addAttribute(< string > six.b('type'), <string> wrap_to_bytes(val))
+            else:
+                itm = root.addChildNode(item, wrap_to_bytes(val))
+                del itm
+
+cdef void readOptions(XMLNode * node, dc):
+    cdef XMLNode * listbase
+    cdef XMLNode * itm
+    cdef int i
+    cdef int j
+    for item in dc:
+        val = dc[item]
+        if node.hasOption(item):
+            raise Exception('Duplicate Option: %s' % item)
+        if isinstance(val, np.ndarray):
+            if val.size == 0:
+                break
+            listbase = node.addChildNode(six.b('Option'))
+            listbase.addAttribute(< string > six.b('key'), < string > item)
+            listbase.addAttribute(< string > six.b('listsize'), < float32 > val.size)
+            index = 0
+            if val.ndim == 2:
+                for i in range(val.shape[0]):
+                    for j in range(val.shape[1]):
+                        itm = listbase.addChildNode(six.b('ListItem'))
+                        itm.addAttribute(< string > six.b('index'), < float32 > index)
+                        itm.addAttribute( < string > six.b('value'), < float32 > val[i, j])
+                        index += 1
+                        del itm
+            elif val.ndim == 1:
+                for i in range(val.shape[0]):
+                    itm = listbase.addChildNode(six.b('ListItem'))
+                    itm.addAttribute(< string > six.b('index'), < float32 > index)
+                    itm.addAttribute(< string > six.b('value'), < float32 > val[i])
+                    index += 1
+                    del itm
+            else:
+                raise Exception("Only 1 or 2 dimensions are allowed")
+            del listbase
+        else:
+            node.addOption(item, wrap_to_bytes(val))
+
+cdef vectorToNumpy(vector[float32] inp):
+    cdef int i
+    cdef int sz = inp.size()
+    ret = np.empty(sz)
+    for i in range(sz):
+        ret[i] = inp[i]
+    return ret
+
+cdef XMLNode2dict(XMLNode * node):
+    cdef XMLNode * subnode
+    cdef list[XMLNode * ] nodes
+    cdef list[XMLNode * ].iterator it
+    dct = {}
+    if node.hasAttribute(six.b('type')):
+        dct['type'] = node.getAttribute(six.b('type'))
+    nodes = node.getNodes()
+    it = nodes.begin()
+    while it != nodes.end():
+        subnode = deref(it)
+        if subnode.hasAttribute(six.b('listsize')):
+            dct[subnode.getName(
+                )] = vectorToNumpy(subnode.getContentNumericalArray())
+        else:
+            dct[subnode.getName()] = subnode.getContent()
+        del subnode
+    return dct
+
+cdef XML2dict(XMLDocument * xml):
+    cdef XMLNode * node = xml.getRootNode()
+    dct = XMLNode2dict(node)
+    del node;
+    return dct;
+
+cdef createProjectionGeometryStruct(CProjectionGeometry2D * geom):
+    cdef int i
+    cdef CFanFlatVecProjectionGeometry2D * fanvecGeom
+    # cdef SFanProjection* p
+    dct = {}
+    dct['DetectorCount'] = geom.getDetectorCount()
+    if not geom.isOfType(< string > six.b('fanflat_vec')):
+        dct['DetectorWidth'] = geom.getDetectorWidth()
+        angles = np.empty(geom.getProjectionAngleCount())
+        for i in range(geom.getProjectionAngleCount()):
+            angles[i] = geom.getProjectionAngle(i)
+        dct['ProjectionAngles'] = angles
+    else:
+        raise Exception("Not yet implemented")
+        # fanvecGeom = <CFanFlatVecProjectionGeometry2D*> geom
+        # vecs = np.empty(fanvecGeom.getProjectionAngleCount()*6)
+        # iDetCount = pVecGeom.getDetectorCount()
+        # for i in range(fanvecGeom.getProjectionAngleCount()):
+        #	p = &fanvecGeom.getProjectionVectors()[i];
+        #	out[6*i + 0] = p.fSrcX
+        #	out[6*i + 1] = p.fSrcY
+        #	out[6*i + 2] = p.fDetSX + 0.5f*iDetCount*p.fDetUX
+        #	out[6*i + 3] = p.fDetSY + 0.5f*iDetCount*p.fDetUY
+        #	out[6*i + 4] = p.fDetUX
+        #	out[6*i + 5] = p.fDetUY
+        # dct['Vectors'] = vecs
+    if (geom.isOfType(< string > six.b('parallel'))):
+        dct["type"] = "parallel"
+    elif (geom.isOfType(< string > six.b('fanflat'))):
+        raise Exception("Not yet implemented")
+        # astra::CFanFlatProjectionGeometry2D* pFanFlatGeom = dynamic_cast<astra::CFanFlatProjectionGeometry2D*>(_pProjGeom)
+        # mGeometryInfo["DistanceOriginSource"] = mxCreateDoubleScalar(pFanFlatGeom->getOriginSourceDistance())
+        # mGeometryInfo["DistanceOriginDetector"] =
+        # mxCreateDoubleScalar(pFanFlatGeom->getOriginDetectorDistance())
+        dct["type"] = "fanflat"
+    elif (geom.isOfType(< string > six.b('sparse_matrix'))):
+        raise Exception("Not yet implemented")
+        # astra::CSparseMatrixProjectionGeometry2D* pSparseMatrixGeom =
+        # dynamic_cast<astra::CSparseMatrixProjectionGeometry2D*>(_pProjGeom);
+        dct["type"] = "sparse_matrix"
+        # dct["MatrixID"] =
+        # mxCreateDoubleScalar(CMatrixManager::getSingleton().getIndex(pSparseMatrixGeom->getMatrix()))
+    elif(geom.isOfType(< string > six.b('fanflat_vec'))):
+        dct["type"] = "fanflat_vec"
+    return dct
+
+cdef createVolumeGeometryStruct(CVolumeGeometry2D * geom):
+    mGeometryInfo = {}
+    mGeometryInfo["GridColCount"] = geom.getGridColCount()
+    mGeometryInfo["GridRowCount"] = geom.getGridRowCount()
+
+    mGeometryOptions = {}
+    mGeometryOptions["WindowMinX"] = geom.getWindowMinX()
+    mGeometryOptions["WindowMaxX"] = geom.getWindowMaxX()
+    mGeometryOptions["WindowMinY"] = geom.getWindowMinY()
+    mGeometryOptions["WindowMaxY"] = geom.getWindowMaxY()
+
+    mGeometryInfo["option"] = mGeometryOptions
+    return mGeometryInfo
diff --git a/python/builder.py b/python/builder.py
new file mode 100644
index 0000000..bdfd092
--- /dev/null
+++ b/python/builder.py
@@ -0,0 +1,70 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+import sys
+import os
+import numpy as np
+
+from distutils.version import LooseVersion
+from distutils.core import setup
+from distutils.extension import Extension
+
+from Cython.Distutils import build_ext
+from Cython.Build import cythonize
+import Cython
+if LooseVersion(Cython.__version__)<LooseVersion('0.13'): raise ImportError("Cython version should be at least 0.13")
+usecuda=False
+try:
+    if os.environ['CPPFLAGS'].find('-DASTRA_CUDA')!=-1:
+        usecuda=True
+except KeyError:
+    pass
+cfg = open('astra/config.pxi','w')
+cfg.write('DEF HAVE_CUDA=' + str(usecuda) + "\n")
+cfg.close()
+
+cmdclass = { }
+ext_modules = [ ]
+
+language_level = 3 if int(sys.version[0]) > 2 else 2
+ext_modules = cythonize("astra/*.pyx", language_level=language_level)
+cmdclass = { 'build_ext': build_ext }
+
+setup (name = 'PyASTRAToolbox',
+       version = '1.6',
+       description = 'Python interface to the ASTRA-Toolbox',
+       author='D.M. Pelt',
+       author_email='D.M.Pelt@cwi.nl',
+       url='http://dmpelt.github.io/pyastratoolbox/',
+       #ext_package='astra',
+       #ext_modules = cythonize(Extension("astra/*.pyx",extra_compile_args=extra_compile_args,extra_linker_args=extra_compile_args)),
+       license='GPLv3',
+       ext_modules = ext_modules,
+       include_dirs=[np.get_include()],
+       cmdclass = cmdclass,
+       #ext_modules = [Extension("astra","astra/astra.pyx")],
+       packages=['astra'],
+       requires=["numpy"],
+	)
diff --git a/python/doc b/python/doc
new file mode 120000
index 0000000..3705b55
--- /dev/null
+++ b/python/doc
@@ -0,0 +1 @@
+docSRC/_build/html
\ No newline at end of file
diff --git a/python/docSRC/ASTRAProjector.rst b/python/docSRC/ASTRAProjector.rst
new file mode 100644
index 0000000..1c267e3
--- /dev/null
+++ b/python/docSRC/ASTRAProjector.rst
@@ -0,0 +1,8 @@
+Helper class: the :mod:`ASTRAProjector` module
+==============================================
+
+.. automodule:: astra.ASTRAProjector
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
diff --git a/python/docSRC/Makefile b/python/docSRC/Makefile
new file mode 100644
index 0000000..a005bab
--- /dev/null
+++ b/python/docSRC/Makefile
@@ -0,0 +1,153 @@
+# Makefile for Sphinx documentation
+#
+
+# You can set these variables from the command line.
+SPHINXOPTS    =
+SPHINXBUILD   = sphinx-build
+PAPER         =
+BUILDDIR      = _build
+
+# Internal variables.
+PAPEROPT_a4     = -D latex_paper_size=a4
+PAPEROPT_letter = -D latex_paper_size=letter
+ALLSPHINXOPTS   = -d $(BUILDDIR)/doctrees $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) .
+# the i18n builder cannot share the environment and doctrees with the others
+I18NSPHINXOPTS  = $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) .
+
+.PHONY: help clean html dirhtml singlehtml pickle json htmlhelp qthelp devhelp epub latex latexpdf text man changes linkcheck doctest gettext
+
+help:
+	@echo "Please use \`make <target>' where <target> is one of"
+	@echo "  html       to make standalone HTML files"
+	@echo "  dirhtml    to make HTML files named index.html in directories"
+	@echo "  singlehtml to make a single large HTML file"
+	@echo "  pickle     to make pickle files"
+	@echo "  json       to make JSON files"
+	@echo "  htmlhelp   to make HTML files and a HTML help project"
+	@echo "  qthelp     to make HTML files and a qthelp project"
+	@echo "  devhelp    to make HTML files and a Devhelp project"
+	@echo "  epub       to make an epub"
+	@echo "  latex      to make LaTeX files, you can set PAPER=a4 or PAPER=letter"
+	@echo "  latexpdf   to make LaTeX files and run them through pdflatex"
+	@echo "  text       to make text files"
+	@echo "  man        to make manual pages"
+	@echo "  texinfo    to make Texinfo files"
+	@echo "  info       to make Texinfo files and run them through makeinfo"
+	@echo "  gettext    to make PO message catalogs"
+	@echo "  changes    to make an overview of all changed/added/deprecated items"
+	@echo "  linkcheck  to check all external links for integrity"
+	@echo "  doctest    to run all doctests embedded in the documentation (if enabled)"
+
+clean:
+	-rm -rf $(BUILDDIR)/*
+
+html:
+	$(SPHINXBUILD) -b html $(ALLSPHINXOPTS) $(BUILDDIR)/html
+	@echo
+	@echo "Build finished. The HTML pages are in $(BUILDDIR)/html."
+
+dirhtml:
+	$(SPHINXBUILD) -b dirhtml $(ALLSPHINXOPTS) $(BUILDDIR)/dirhtml
+	@echo
+	@echo "Build finished. The HTML pages are in $(BUILDDIR)/dirhtml."
+
+singlehtml:
+	$(SPHINXBUILD) -b singlehtml $(ALLSPHINXOPTS) $(BUILDDIR)/singlehtml
+	@echo
+	@echo "Build finished. The HTML page is in $(BUILDDIR)/singlehtml."
+
+pickle:
+	$(SPHINXBUILD) -b pickle $(ALLSPHINXOPTS) $(BUILDDIR)/pickle
+	@echo
+	@echo "Build finished; now you can process the pickle files."
+
+json:
+	$(SPHINXBUILD) -b json $(ALLSPHINXOPTS) $(BUILDDIR)/json
+	@echo
+	@echo "Build finished; now you can process the JSON files."
+
+htmlhelp:
+	$(SPHINXBUILD) -b htmlhelp $(ALLSPHINXOPTS) $(BUILDDIR)/htmlhelp
+	@echo
+	@echo "Build finished; now you can run HTML Help Workshop with the" \
+	      ".hhp project file in $(BUILDDIR)/htmlhelp."
+
+qthelp:
+	$(SPHINXBUILD) -b qthelp $(ALLSPHINXOPTS) $(BUILDDIR)/qthelp
+	@echo
+	@echo "Build finished; now you can run "qcollectiongenerator" with the" \
+	      ".qhcp project file in $(BUILDDIR)/qthelp, like this:"
+	@echo "# qcollectiongenerator $(BUILDDIR)/qthelp/.qhcp"
+	@echo "To view the help file:"
+	@echo "# assistant -collectionFile $(BUILDDIR)/qthelp/.qhc"
+
+devhelp:
+	$(SPHINXBUILD) -b devhelp $(ALLSPHINXOPTS) $(BUILDDIR)/devhelp
+	@echo
+	@echo "Build finished."
+	@echo "To view the help file:"
+	@echo "# mkdir -p $$HOME/.local/share/devhelp/"
+	@echo "# ln -s $(BUILDDIR)/devhelp $$HOME/.local/share/devhelp/"
+	@echo "# devhelp"
+
+epub:
+	$(SPHINXBUILD) -b epub $(ALLSPHINXOPTS) $(BUILDDIR)/epub
+	@echo
+	@echo "Build finished. The epub file is in $(BUILDDIR)/epub."
+
+latex:
+	$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
+	@echo
+	@echo "Build finished; the LaTeX files are in $(BUILDDIR)/latex."
+	@echo "Run \`make' in that directory to run these through (pdf)latex" \
+	      "(use \`make latexpdf' here to do that automatically)."
+
+latexpdf:
+	$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
+	@echo "Running LaTeX files through pdflatex..."
+	$(MAKE) -C $(BUILDDIR)/latex all-pdf
+	@echo "pdflatex finished; the PDF files are in $(BUILDDIR)/latex."
+
+text:
+	$(SPHINXBUILD) -b text $(ALLSPHINXOPTS) $(BUILDDIR)/text
+	@echo
+	@echo "Build finished. The text files are in $(BUILDDIR)/text."
+
+man:
+	$(SPHINXBUILD) -b man $(ALLSPHINXOPTS) $(BUILDDIR)/man
+	@echo
+	@echo "Build finished. The manual pages are in $(BUILDDIR)/man."
+
+texinfo:
+	$(SPHINXBUILD) -b texinfo $(ALLSPHINXOPTS) $(BUILDDIR)/texinfo
+	@echo
+	@echo "Build finished. The Texinfo files are in $(BUILDDIR)/texinfo."
+	@echo "Run \`make' in that directory to run these through makeinfo" \
+	      "(use \`make info' here to do that automatically)."
+
+info:
+	$(SPHINXBUILD) -b texinfo $(ALLSPHINXOPTS) $(BUILDDIR)/texinfo
+	@echo "Running Texinfo files through makeinfo..."
+	make -C $(BUILDDIR)/texinfo info
+	@echo "makeinfo finished; the Info files are in $(BUILDDIR)/texinfo."
+
+gettext:
+	$(SPHINXBUILD) -b gettext $(I18NSPHINXOPTS) $(BUILDDIR)/locale
+	@echo
+	@echo "Build finished. The message catalogs are in $(BUILDDIR)/locale."
+
+changes:
+	$(SPHINXBUILD) -b changes $(ALLSPHINXOPTS) $(BUILDDIR)/changes
+	@echo
+	@echo "The overview file is in $(BUILDDIR)/changes."
+
+linkcheck:
+	$(SPHINXBUILD) -b linkcheck $(ALLSPHINXOPTS) $(BUILDDIR)/linkcheck
+	@echo
+	@echo "Link check complete; look for any errors in the above output " \
+	      "or in $(BUILDDIR)/linkcheck/output.txt."
+
+doctest:
+	$(SPHINXBUILD) -b doctest $(ALLSPHINXOPTS) $(BUILDDIR)/doctest
+	@echo "Testing of doctests in the sources finished, look at the " \
+	      "results in $(BUILDDIR)/doctest/output.txt."
diff --git a/python/docSRC/_build/doctrees/ASTRAProjector.doctree b/python/docSRC/_build/doctrees/ASTRAProjector.doctree
new file mode 100644
index 0000000..c93e5bb
--- /dev/null
+++ b/python/docSRC/_build/doctrees/ASTRAProjector.doctree
diff --git a/python/docSRC/_build/doctrees/algorithm.doctree b/python/docSRC/_build/doctrees/algorithm.doctree
new file mode 100644
index 0000000..1cb6d80
--- /dev/null
+++ b/python/docSRC/_build/doctrees/algorithm.doctree
diff --git a/python/docSRC/_build/doctrees/astra.doctree b/python/docSRC/_build/doctrees/astra.doctree
new file mode 100644
index 0000000..948d05e
--- /dev/null
+++ b/python/docSRC/_build/doctrees/astra.doctree
diff --git a/python/docSRC/_build/doctrees/creators.doctree b/python/docSRC/_build/doctrees/creators.doctree
new file mode 100644
index 0000000..72c82fd
--- /dev/null
+++ b/python/docSRC/_build/doctrees/creators.doctree
diff --git a/python/docSRC/_build/doctrees/data2d.doctree b/python/docSRC/_build/doctrees/data2d.doctree
new file mode 100644
index 0000000..bfe67d5
--- /dev/null
+++ b/python/docSRC/_build/doctrees/data2d.doctree
diff --git a/python/docSRC/_build/doctrees/data3d.doctree b/python/docSRC/_build/doctrees/data3d.doctree
new file mode 100644
index 0000000..4025c09
--- /dev/null
+++ b/python/docSRC/_build/doctrees/data3d.doctree
diff --git a/python/docSRC/_build/doctrees/environment.pickle b/python/docSRC/_build/doctrees/environment.pickle
new file mode 100644
index 0000000..d17f654
--- /dev/null
+++ b/python/docSRC/_build/doctrees/environment.pickle
diff --git a/python/docSRC/_build/doctrees/functions.doctree b/python/docSRC/_build/doctrees/functions.doctree
new file mode 100644
index 0000000..9ee097d
--- /dev/null
+++ b/python/docSRC/_build/doctrees/functions.doctree
diff --git a/python/docSRC/_build/doctrees/index.doctree b/python/docSRC/_build/doctrees/index.doctree
new file mode 100644
index 0000000..f0925c9
--- /dev/null
+++ b/python/docSRC/_build/doctrees/index.doctree
diff --git a/python/docSRC/_build/doctrees/matlab.doctree b/python/docSRC/_build/doctrees/matlab.doctree
new file mode 100644
index 0000000..fc443e9
--- /dev/null
+++ b/python/docSRC/_build/doctrees/matlab.doctree
diff --git a/python/docSRC/_build/doctrees/matrix.doctree b/python/docSRC/_build/doctrees/matrix.doctree
new file mode 100644
index 0000000..847c0c7
--- /dev/null
+++ b/python/docSRC/_build/doctrees/matrix.doctree
diff --git a/python/docSRC/_build/doctrees/projector.doctree b/python/docSRC/_build/doctrees/projector.doctree
new file mode 100644
index 0000000..cb7e640
--- /dev/null
+++ b/python/docSRC/_build/doctrees/projector.doctree
diff --git a/python/docSRC/_build/html/.buildinfo b/python/docSRC/_build/html/.buildinfo
new file mode 100644
index 0000000..aecd9dc
--- /dev/null
+++ b/python/docSRC/_build/html/.buildinfo
@@ -0,0 +1,4 @@
+# Sphinx build info version 1
+# This file hashes the configuration used when building these files. When it is not found, a full rebuild will be done.
+config: 613726d7ead289eb5bc59a5d50e806e0
+tags: 645f666f9bcd5a90fca523b33c5a78b7
diff --git a/python/docSRC/_build/html/ASTRAProjector.html b/python/docSRC/_build/html/ASTRAProjector.html
new file mode 100644
index 0000000..61c6a2f
--- /dev/null
+++ b/python/docSRC/_build/html/ASTRAProjector.html
@@ -0,0 +1,235 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+
+
+<html xmlns="http://www.w3.org/1999/xhtml">
+  <head>
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+    
+    <title>Helper class: the ASTRAProjector module &mdash; PyASTRAToolbox 1.6 documentation</title>
+    
+    <link rel="stylesheet" href="_static/default.css" type="text/css" />
+    <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
+    
+    <script type="text/javascript">
+      var DOCUMENTATION_OPTIONS = {
+        URL_ROOT:    './',
+        VERSION:     '1.6',
+        COLLAPSE_INDEX: false,
+        FILE_SUFFIX: '.html',
+        HAS_SOURCE:  true
+      };
+    </script>
+    <script type="text/javascript" src="_static/jquery.js"></script>
+    <script type="text/javascript" src="_static/underscore.js"></script>
+    <script type="text/javascript" src="_static/doctools.js"></script>
+    <script type="text/javascript" src="http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>
+    <link rel="top" title="PyASTRAToolbox 1.6 documentation" href="index.html" />
+    <link rel="next" title="MATLAB compatibility interface: the matlab module" href="matlab.html" />
+    <link rel="prev" title="Additional functions: the functions module" href="functions.html" /> 
+  </head>
+  <body>
+    <div class="related">
+      <h3>Navigation</h3>
+      <ul>
+        <li class="right" style="margin-right: 10px">
+          <a href="genindex.html" title="General Index"
+             accesskey="I">index</a></li>
+        <li class="right" >
+          <a href="py-modindex.html" title="Python Module Index"
+             >modules</a> |</li>
+        <li class="right" >
+          <a href="matlab.html" title="MATLAB compatibility interface: the matlab module"
+             accesskey="N">next</a> |</li>
+        <li class="right" >
+          <a href="functions.html" title="Additional functions: the functions module"
+             accesskey="P">previous</a> |</li>
+        <li><a href="index.html">PyASTRAToolbox 1.6 documentation</a> &raquo;</li> 
+      </ul>
+    </div>  
+
+    <div class="document">
+      <div class="documentwrapper">
+        <div class="bodywrapper">
+          <div class="body">
+            
+  <div class="section" id="module-astra.ASTRAProjector">
+<span id="helper-class-the-astraprojector-module"></span><h1>Helper class: the <tt class="xref py py-mod docutils literal"><span class="pre">ASTRAProjector</span></tt> module<a class="headerlink" href="#module-astra.ASTRAProjector" title="Permalink to this headline">¶</a></h1>
+<dl class="class">
+<dt id="astra.ASTRAProjector.ASTRAProjector2D">
+<em class="property">class </em><tt class="descclassname">astra.ASTRAProjector.</tt><tt class="descname">ASTRAProjector2D</tt><big>(</big><em>proj_geom</em>, <em>vol_geom</em>, <em>proj_type</em>, <em>useCUDA=False</em><big>)</big><a class="reference internal" href="_modules/astra/ASTRAProjector.html#ASTRAProjector2D"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.ASTRAProjector.ASTRAProjector2D" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <tt class="xref py py-class docutils literal"><span class="pre">builtins.object</span></tt></p>
+<p>Helps with various common ASTRA Toolbox 2D operations.</p>
+<p>This class can perform several often used toolbox operations, such as:</p>
+<ul class="simple">
+<li>Forward projecting</li>
+<li>Back projecting</li>
+<li>Reconstructing</li>
+</ul>
+<p>Note that this class has a some computational overhead, because it
+copies a lot of data. If you use many repeated operations, directly
+using the PyAstraToolbox methods directly is faster.</p>
+<p>You can use this class as an abstracted weight matrix <span class="math">\(W\)</span>: multiplying an instance
+<tt class="docutils literal"><span class="pre">proj</span></tt> of this class by an image results in a forward projection of the image, and multiplying
+<tt class="docutils literal"><span class="pre">proj.T</span></tt> by a sinogram results in a backprojection of the sinogram:</p>
+<div class="highlight-python"><div class="highlight"><pre><span class="n">proj</span> <span class="o">=</span> <span class="n">ASTRAProjector2D</span><span class="p">(</span><span class="o">...</span><span class="p">)</span>
+<span class="n">fp</span> <span class="o">=</span> <span class="n">proj</span><span class="o">*</span><span class="n">image</span>
+<span class="n">bp</span> <span class="o">=</span> <span class="n">proj</span><span class="o">.</span><span class="n">T</span><span class="o">*</span><span class="n">sinogram</span>
+</pre></div>
+</div>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first last simple">
+<li><strong>proj_geom</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/stdtypes.html#dict" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">dict</span></tt></a>) &#8211; The projection geometry.</li>
+<li><strong>vol_geom</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/stdtypes.html#dict" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">dict</span></tt></a>) &#8211; The volume geometry.</li>
+<li><strong>proj_type</strong> (<tt class="xref py py-class docutils literal"><span class="pre">string</span></tt>) &#8211; Projector type, such as <tt class="docutils literal"><span class="pre">'line'</span></tt>, <tt class="docutils literal"><span class="pre">'linear'</span></tt>, ...</li>
+<li><strong>useCUDA</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#bool" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">bool</span></tt></a>) &#8211; If <tt class="docutils literal"><span class="pre">True</span></tt>, use CUDA for calculations, when possible.</li>
+</ul>
+</td>
+</tr>
+</tbody>
+</table>
+<dl class="method">
+<dt id="astra.ASTRAProjector.ASTRAProjector2D.backProject">
+<tt class="descname">backProject</tt><big>(</big><em>data</em><big>)</big><a class="reference internal" href="_modules/astra/ASTRAProjector.html#ASTRAProjector2D.backProject"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.ASTRAProjector.ASTRAProjector2D.backProject" title="Permalink to this definition">¶</a></dt>
+<dd><p>Backproject a sinogram.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>data</strong> (<a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a> or <a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; The sinogram data or ID.</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a> &#8211; The backprojection.</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="method">
+<dt id="astra.ASTRAProjector.ASTRAProjector2D.forwardProject">
+<tt class="descname">forwardProject</tt><big>(</big><em>data</em><big>)</big><a class="reference internal" href="_modules/astra/ASTRAProjector.html#ASTRAProjector2D.forwardProject"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.ASTRAProjector.ASTRAProjector2D.forwardProject" title="Permalink to this definition">¶</a></dt>
+<dd><p>Forward project an image.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>data</strong> (<a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a> or <a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; The image data or ID.</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a> &#8211; The forward projection.</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="method">
+<dt id="astra.ASTRAProjector.ASTRAProjector2D.reconstruct">
+<tt class="descname">reconstruct</tt><big>(</big><em>data</em>, <em>method</em>, <em>**kwargs</em><big>)</big><a class="reference internal" href="_modules/astra/ASTRAProjector.html#ASTRAProjector2D.reconstruct"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.ASTRAProjector.ASTRAProjector2D.reconstruct" title="Permalink to this definition">¶</a></dt>
+<dd><p>Reconstruct an image from a sinogram.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
+<li><strong>data</strong> (<a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a> or <a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; The sinogram data or ID.</li>
+<li><strong>method</strong> (<tt class="xref py py-class docutils literal"><span class="pre">string</span></tt>) &#8211; Name of the reconstruction algorithm.</li>
+<li><strong>kwargs</strong> &#8211; Additional named parameters to pass to <a class="reference internal" href="creators.html#astra.creators.create_reconstruction" title="astra.creators.create_reconstruction"><tt class="xref py py-func docutils literal"><span class="pre">astra.creators.create_reconstruction()</span></tt></a>.</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last"><a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a> &#8211; The reconstruction.</p>
+</td>
+</tr>
+</tbody>
+</table>
+<p>Example of a SIRT reconstruction using CUDA:</p>
+<div class="highlight-python"><div class="highlight"><pre><span class="n">proj</span> <span class="o">=</span> <span class="n">ASTRAProjector2D</span><span class="p">(</span><span class="o">...</span><span class="p">)</span>
+<span class="n">rec</span> <span class="o">=</span> <span class="n">proj</span><span class="o">.</span><span class="n">reconstruct</span><span class="p">(</span><span class="n">sinogram</span><span class="p">,</span><span class="s">&#39;SIRT_CUDA&#39;</span><span class="p">,</span><span class="n">iterations</span><span class="o">=</span><span class="mi">1000</span><span class="p">)</span>
+</pre></div>
+</div>
+</dd></dl>
+
+</dd></dl>
+
+<dl class="class">
+<dt id="astra.ASTRAProjector.ASTRAProjector2DTranspose">
+<em class="property">class </em><tt class="descclassname">astra.ASTRAProjector.</tt><tt class="descname">ASTRAProjector2DTranspose</tt><big>(</big><em>parentProj</em><big>)</big><a class="reference internal" href="_modules/astra/ASTRAProjector.html#ASTRAProjector2DTranspose"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.ASTRAProjector.ASTRAProjector2DTranspose" title="Permalink to this definition">¶</a></dt>
+<dd><p>Bases: <tt class="xref py py-class docutils literal"><span class="pre">builtins.object</span></tt></p>
+<p>Implements the <tt class="docutils literal"><span class="pre">proj.T</span></tt> functionality.</p>
+<p>Do not use directly, since it can be accessed as member <tt class="docutils literal"><span class="pre">.T</span></tt> of
+an <a class="reference internal" href="#astra.ASTRAProjector.ASTRAProjector2D" title="astra.ASTRAProjector.ASTRAProjector2D"><tt class="xref py py-class docutils literal"><span class="pre">ASTRAProjector2D</span></tt></a> object.</p>
+</dd></dl>
+
+</div>
+
+
+          </div>
+        </div>
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+        <div class="sphinxsidebarwrapper">
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+  <h1>Source code for astra.ASTRAProjector</h1><div class="highlight"><pre>
+<span class="c">#-----------------------------------------------------------------------</span>
+<span class="c">#Copyright 2013 Centrum Wiskunde &amp; Informatica, Amsterdam</span>
+<span class="c">#</span>
+<span class="c">#Author: Daniel M. Pelt</span>
+<span class="c">#Contact: D.M.Pelt@cwi.nl</span>
+<span class="c">#Website: http://dmpelt.github.io/pyastratoolbox/</span>
+<span class="c">#</span>
+<span class="c">#</span>
+<span class="c">#This file is part of the Python interface to the</span>
+<span class="c">#All Scale Tomographic Reconstruction Antwerp Toolbox (&quot;ASTRA Toolbox&quot;).</span>
+<span class="c">#</span>
+<span class="c">#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify</span>
+<span class="c">#it under the terms of the GNU General Public License as published by</span>
+<span class="c">#the Free Software Foundation, either version 3 of the License, or</span>
+<span class="c">#(at your option) any later version.</span>
+<span class="c">#</span>
+<span class="c">#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,</span>
+<span class="c">#but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
+<span class="c">#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
+<span class="c">#GNU General Public License for more details.</span>
+<span class="c">#</span>
+<span class="c">#You should have received a copy of the GNU General Public License</span>
+<span class="c">#along with the Python interface to the ASTRA Toolbox. If not, see &lt;http://www.gnu.org/licenses/&gt;.</span>
+<span class="c">#</span>
+<span class="c">#-----------------------------------------------------------------------</span>
+
+<span class="kn">import</span> <span class="nn">math</span>
+<span class="kn">from</span> <span class="nn">.</span> <span class="kn">import</span> <span class="n">creators</span> <span class="k">as</span> <span class="n">ac</span>
+<span class="kn">from</span> <span class="nn">.</span> <span class="kn">import</span> <span class="n">data2d</span>
+
+
+<div class="viewcode-block" id="ASTRAProjector2DTranspose"><a class="viewcode-back" href="../../ASTRAProjector.html#astra.ASTRAProjector.ASTRAProjector2DTranspose">[docs]</a><span class="k">class</span> <span class="nc">ASTRAProjector2DTranspose</span><span class="p">():</span>
+    <span class="sd">&quot;&quot;&quot;Implements the ``proj.T`` functionality.</span>
+
+<span class="sd">    Do not use directly, since it can be accessed as member ``.T`` of</span>
+<span class="sd">    an :class:`ASTRAProjector2D` object.</span>
+
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">parentProj</span><span class="p">):</span>
+        <span class="bp">self</span><span class="o">.</span><span class="n">parentProj</span> <span class="o">=</span> <span class="n">parentProj</span>
+
+    <span class="k">def</span> <span class="nf">__mul__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">data</span><span class="p">):</span>
+        <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">parentProj</span><span class="o">.</span><span class="n">backProject</span><span class="p">(</span><span class="n">data</span><span class="p">)</span>
+
+</div>
+<div class="viewcode-block" id="ASTRAProjector2D"><a class="viewcode-back" href="../../ASTRAProjector.html#astra.ASTRAProjector.ASTRAProjector2D">[docs]</a><span class="k">class</span> <span class="nc">ASTRAProjector2D</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Helps with various common ASTRA Toolbox 2D operations.</span>
+
+<span class="sd">    This class can perform several often used toolbox operations, such as:</span>
+
+<span class="sd">    * Forward projecting</span>
+<span class="sd">    * Back projecting</span>
+<span class="sd">    * Reconstructing</span>
+
+<span class="sd">    Note that this class has a some computational overhead, because it</span>
+<span class="sd">    copies a lot of data. If you use many repeated operations, directly</span>
+<span class="sd">    using the PyAstraToolbox methods directly is faster.</span>
+
+<span class="sd">    You can use this class as an abstracted weight matrix :math:`W`: multiplying an instance</span>
+<span class="sd">    ``proj`` of this class by an image results in a forward projection of the image, and multiplying</span>
+<span class="sd">    ``proj.T`` by a sinogram results in a backprojection of the sinogram::</span>
+
+<span class="sd">        proj = ASTRAProjector2D(...)</span>
+<span class="sd">        fp = proj*image</span>
+<span class="sd">        bp = proj.T*sinogram</span>
+
+<span class="sd">    :param proj_geom: The projection geometry.</span>
+<span class="sd">    :type proj_geom: :class:`dict`</span>
+<span class="sd">    :param vol_geom: The volume geometry.</span>
+<span class="sd">    :type vol_geom: :class:`dict`</span>
+<span class="sd">    :param proj_type: Projector type, such as ``&#39;line&#39;``, ``&#39;linear&#39;``, ...</span>
+<span class="sd">    :type proj_type: :class:`string`</span>
+<span class="sd">    :param useCUDA: If ``True``, use CUDA for calculations, when possible.</span>
+<span class="sd">    :type useCUDA: :class:`bool`</span>
+<span class="sd">    &quot;&quot;&quot;</span>
+
+    <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">proj_geom</span><span class="p">,</span> <span class="n">vol_geom</span><span class="p">,</span> <span class="n">proj_type</span><span class="p">,</span> <span class="n">useCUDA</span><span class="o">=</span><span class="bp">False</span><span class="p">):</span>
+        <span class="bp">self</span><span class="o">.</span><span class="n">vol_geom</span> <span class="o">=</span> <span class="n">vol_geom</span>
+        <span class="bp">self</span><span class="o">.</span><span class="n">recSize</span> <span class="o">=</span> <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;GridColCount&#39;</span><span class="p">]</span>
+        <span class="bp">self</span><span class="o">.</span><span class="n">angles</span> <span class="o">=</span> <span class="n">proj_geom</span><span class="p">[</span><span class="s">&#39;ProjectionAngles&#39;</span><span class="p">]</span>
+        <span class="bp">self</span><span class="o">.</span><span class="n">nDet</span> <span class="o">=</span> <span class="n">proj_geom</span><span class="p">[</span><span class="s">&#39;DetectorCount&#39;</span><span class="p">]</span>
+        <span class="n">nexpow</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="nb">pow</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span> <span class="n">math</span><span class="o">.</span><span class="n">ceil</span><span class="p">(</span><span class="n">math</span><span class="o">.</span><span class="n">log</span><span class="p">(</span><span class="mi">2</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">nDet</span><span class="p">,</span> <span class="mi">2</span><span class="p">))))</span>
+        <span class="bp">self</span><span class="o">.</span><span class="n">filterSize</span> <span class="o">=</span> <span class="n">nexpow</span> <span class="o">/</span> <span class="mi">2</span> <span class="o">+</span> <span class="mi">1</span>
+        <span class="bp">self</span><span class="o">.</span><span class="n">nProj</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">angles</span><span class="o">.</span><span class="n">shape</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
+        <span class="bp">self</span><span class="o">.</span><span class="n">proj_geom</span> <span class="o">=</span> <span class="n">proj_geom</span>
+        <span class="bp">self</span><span class="o">.</span><span class="n">proj_id</span> <span class="o">=</span> <span class="n">ac</span><span class="o">.</span><span class="n">create_projector</span><span class="p">(</span><span class="n">proj_type</span><span class="p">,</span> <span class="n">proj_geom</span><span class="p">,</span> <span class="n">vol_geom</span><span class="p">)</span>
+        <span class="bp">self</span><span class="o">.</span><span class="n">useCUDA</span> <span class="o">=</span> <span class="n">useCUDA</span>
+        <span class="bp">self</span><span class="o">.</span><span class="n">T</span> <span class="o">=</span> <span class="n">ASTRAProjector2DTranspose</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
+
+<div class="viewcode-block" id="ASTRAProjector2D.backProject"><a class="viewcode-back" href="../../ASTRAProjector.html#astra.ASTRAProjector.ASTRAProjector2D.backProject">[docs]</a>    <span class="k">def</span> <span class="nf">backProject</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">data</span><span class="p">):</span>
+        <span class="sd">&quot;&quot;&quot;Backproject a sinogram.</span>
+
+<span class="sd">        :param data: The sinogram data or ID.</span>
+<span class="sd">        :type data: :class:`numpy.ndarray` or :class:`int`</span>
+<span class="sd">        :returns: :class:`numpy.ndarray` -- The backprojection.</span>
+
+<span class="sd">        &quot;&quot;&quot;</span>
+        <span class="n">vol_id</span><span class="p">,</span> <span class="n">vol</span> <span class="o">=</span> <span class="n">ac</span><span class="o">.</span><span class="n">create_backprojection</span><span class="p">(</span>
+            <span class="n">data</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">proj_id</span><span class="p">,</span> <span class="n">useCUDA</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">useCUDA</span><span class="p">,</span> <span class="n">returnData</span><span class="o">=</span><span class="bp">True</span><span class="p">)</span>
+        <span class="n">data2d</span><span class="o">.</span><span class="n">delete</span><span class="p">(</span><span class="n">vol_id</span><span class="p">)</span>
+        <span class="k">return</span> <span class="n">vol</span>
+</div>
+<div class="viewcode-block" id="ASTRAProjector2D.forwardProject"><a class="viewcode-back" href="../../ASTRAProjector.html#astra.ASTRAProjector.ASTRAProjector2D.forwardProject">[docs]</a>    <span class="k">def</span> <span class="nf">forwardProject</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">data</span><span class="p">):</span>
+        <span class="sd">&quot;&quot;&quot;Forward project an image.</span>
+
+<span class="sd">        :param data: The image data or ID.</span>
+<span class="sd">        :type data: :class:`numpy.ndarray` or :class:`int`</span>
+<span class="sd">        :returns: :class:`numpy.ndarray` -- The forward projection.</span>
+
+<span class="sd">        &quot;&quot;&quot;</span>
+        <span class="n">sin_id</span><span class="p">,</span> <span class="n">sino</span> <span class="o">=</span> <span class="n">ac</span><span class="o">.</span><span class="n">create_sino</span><span class="p">(</span><span class="n">data</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">proj_id</span><span class="p">,</span> <span class="n">useCUDA</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">useCUDA</span><span class="p">,</span> <span class="n">returnData</span><span class="o">=</span><span class="bp">True</span><span class="p">)</span>
+        <span class="n">data2d</span><span class="o">.</span><span class="n">delete</span><span class="p">(</span><span class="n">sin_id</span><span class="p">)</span>
+        <span class="k">return</span> <span class="n">sino</span>
+</div>
+<div class="viewcode-block" id="ASTRAProjector2D.reconstruct"><a class="viewcode-back" href="../../ASTRAProjector.html#astra.ASTRAProjector.ASTRAProjector2D.reconstruct">[docs]</a>    <span class="k">def</span> <span class="nf">reconstruct</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">data</span><span class="p">,</span> <span class="n">method</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
+        <span class="sd">&quot;&quot;&quot;Reconstruct an image from a sinogram.</span>
+
+<span class="sd">        :param data: The sinogram data or ID.</span>
+<span class="sd">        :type data: :class:`numpy.ndarray` or :class:`int`</span>
+<span class="sd">        :param method: Name of the reconstruction algorithm.</span>
+<span class="sd">        :type method: :class:`string`</span>
+<span class="sd">        :param kwargs: Additional named parameters to pass to :func:`astra.creators.create_reconstruction`.</span>
+<span class="sd">        :returns: :class:`numpy.ndarray` -- The reconstruction.</span>
+
+<span class="sd">        Example of a SIRT reconstruction using CUDA::</span>
+
+<span class="sd">            proj = ASTRAProjector2D(...)</span>
+<span class="sd">            rec = proj.reconstruct(sinogram,&#39;SIRT_CUDA&#39;,iterations=1000)</span>
+
+<span class="sd">        &quot;&quot;&quot;</span>
+        <span class="n">kwargs</span><span class="p">[</span><span class="s">&#39;returnData&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="bp">True</span>
+        <span class="n">rec_id</span><span class="p">,</span> <span class="n">rec</span> <span class="o">=</span> <span class="n">ac</span><span class="o">.</span><span class="n">create_reconstruction</span><span class="p">(</span>
+            <span class="n">method</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">proj_id</span><span class="p">,</span> <span class="n">data</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
+        <span class="n">data2d</span><span class="o">.</span><span class="n">delete</span><span class="p">(</span><span class="n">rec_id</span><span class="p">)</span>
+        <span class="k">return</span> <span class="n">rec</span>
+</div>
+    <span class="k">def</span> <span class="nf">__mul__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">data</span><span class="p">):</span>
+        <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">forwardProject</span><span class="p">(</span><span class="n">data</span><span class="p">)</span></div>
+</pre></div>
+
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+            
+  <h1>Source code for astra.algorithm</h1><div class="highlight"><pre>
+<span class="c">#-----------------------------------------------------------------------</span>
+<span class="c">#Copyright 2013 Centrum Wiskunde &amp; Informatica, Amsterdam</span>
+<span class="c">#</span>
+<span class="c">#Author: Daniel M. Pelt</span>
+<span class="c">#Contact: D.M.Pelt@cwi.nl</span>
+<span class="c">#Website: http://dmpelt.github.io/pyastratoolbox/</span>
+<span class="c">#</span>
+<span class="c">#</span>
+<span class="c">#This file is part of the Python interface to the</span>
+<span class="c">#All Scale Tomographic Reconstruction Antwerp Toolbox (&quot;ASTRA Toolbox&quot;).</span>
+<span class="c">#</span>
+<span class="c">#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify</span>
+<span class="c">#it under the terms of the GNU General Public License as published by</span>
+<span class="c">#the Free Software Foundation, either version 3 of the License, or</span>
+<span class="c">#(at your option) any later version.</span>
+<span class="c">#</span>
+<span class="c">#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,</span>
+<span class="c">#but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
+<span class="c">#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
+<span class="c">#GNU General Public License for more details.</span>
+<span class="c">#</span>
+<span class="c">#You should have received a copy of the GNU General Public License</span>
+<span class="c">#along with the Python interface to the ASTRA Toolbox. If not, see &lt;http://www.gnu.org/licenses/&gt;.</span>
+<span class="c">#</span>
+<span class="c">#-----------------------------------------------------------------------</span>
+
+<span class="kn">from</span> <span class="nn">.</span> <span class="kn">import</span> <span class="n">algorithm_c</span> <span class="k">as</span> <span class="n">a</span>
+
+<div class="viewcode-block" id="create"><a class="viewcode-back" href="../../algorithm.html#astra.algorithm.create">[docs]</a><span class="k">def</span> <span class="nf">create</span><span class="p">(</span><span class="n">config</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Create algorithm object.</span>
+<span class="sd">    </span>
+<span class="sd">    :param config: Algorithm options.</span>
+<span class="sd">    :type config: :class:`dict`</span>
+<span class="sd">    :returns: :class:`int` -- the ID of the constructed object.</span>
+<span class="sd">    </span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">a</span><span class="o">.</span><span class="n">create</span><span class="p">(</span><span class="n">config</span><span class="p">)</span>
+</div>
+<div class="viewcode-block" id="run"><a class="viewcode-back" href="../../algorithm.html#astra.algorithm.run">[docs]</a><span class="k">def</span> <span class="nf">run</span><span class="p">(</span><span class="n">i</span><span class="p">,</span> <span class="n">iterations</span><span class="o">=</span><span class="mi">1</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Run an algorithm.</span>
+<span class="sd">    </span>
+<span class="sd">    :param i: ID of object.</span>
+<span class="sd">    :type i: :class:`int`</span>
+<span class="sd">    :param iterations: Number of iterations to run.</span>
+<span class="sd">    :type iterations: :class:`int`</span>
+<span class="sd">    </span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">a</span><span class="o">.</span><span class="n">run</span><span class="p">(</span><span class="n">i</span><span class="p">,</span><span class="n">iterations</span><span class="p">)</span>
+</div>
+<div class="viewcode-block" id="get_res_norm"><a class="viewcode-back" href="../../algorithm.html#astra.algorithm.get_res_norm">[docs]</a><span class="k">def</span> <span class="nf">get_res_norm</span><span class="p">(</span><span class="n">i</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Get residual norm of algorithm.</span>
+<span class="sd">    </span>
+<span class="sd">    :param i: ID of object.</span>
+<span class="sd">    :type i: :class:`int`</span>
+<span class="sd">    :returns: :class:`float` -- The residual norm.</span>
+<span class="sd">    </span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    
+    <span class="k">return</span> <span class="n">a</span><span class="o">.</span><span class="n">get_res_norm</span><span class="p">(</span><span class="n">i</span><span class="p">)</span>
+    </div>
+<div class="viewcode-block" id="delete"><a class="viewcode-back" href="../../algorithm.html#astra.algorithm.delete">[docs]</a><span class="k">def</span> <span class="nf">delete</span><span class="p">(</span><span class="n">ids</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Delete a matrix object.</span>
+<span class="sd">    </span>
+<span class="sd">    :param ids: ID or list of ID&#39;s to delete.</span>
+<span class="sd">    :type ids: :class:`int` or :class:`list`</span>
+<span class="sd">    </span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">a</span><span class="o">.</span><span class="n">delete</span><span class="p">(</span><span class="n">ids</span><span class="p">)</span>
+</div>
+<div class="viewcode-block" id="clear"><a class="viewcode-back" href="../../algorithm.html#astra.algorithm.clear">[docs]</a><span class="k">def</span> <span class="nf">clear</span><span class="p">():</span>
+    <span class="sd">&quot;&quot;&quot;Clear all matrix objects.&quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">a</span><span class="o">.</span><span class="n">clear</span><span class="p">()</span>
+</div>
+<div class="viewcode-block" id="info"><a class="viewcode-back" href="../../algorithm.html#astra.algorithm.info">[docs]</a><span class="k">def</span> <span class="nf">info</span><span class="p">():</span>
+    <span class="sd">&quot;&quot;&quot;Print info on matrix objects in memory.&quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">a</span><span class="o">.</span><span class="n">info</span><span class="p">()</span></div>
+</pre></div>
+
+          </div>
+        </div>
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+            
+  <h1>Source code for astra.astra</h1><div class="highlight"><pre>
+<span class="c">#-----------------------------------------------------------------------</span>
+<span class="c">#Copyright 2013 Centrum Wiskunde &amp; Informatica, Amsterdam</span>
+<span class="c">#</span>
+<span class="c">#Author: Daniel M. Pelt</span>
+<span class="c">#Contact: D.M.Pelt@cwi.nl</span>
+<span class="c">#Website: http://dmpelt.github.io/pyastratoolbox/</span>
+<span class="c">#</span>
+<span class="c">#</span>
+<span class="c">#This file is part of the Python interface to the</span>
+<span class="c">#All Scale Tomographic Reconstruction Antwerp Toolbox (&quot;ASTRA Toolbox&quot;).</span>
+<span class="c">#</span>
+<span class="c">#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify</span>
+<span class="c">#it under the terms of the GNU General Public License as published by</span>
+<span class="c">#the Free Software Foundation, either version 3 of the License, or</span>
+<span class="c">#(at your option) any later version.</span>
+<span class="c">#</span>
+<span class="c">#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,</span>
+<span class="c">#but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
+<span class="c">#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
+<span class="c">#GNU General Public License for more details.</span>
+<span class="c">#</span>
+<span class="c">#You should have received a copy of the GNU General Public License</span>
+<span class="c">#along with the Python interface to the ASTRA Toolbox. If not, see &lt;http://www.gnu.org/licenses/&gt;.</span>
+<span class="c">#</span>
+<span class="c">#-----------------------------------------------------------------------</span>
+
+<span class="kn">from</span> <span class="nn">.</span> <span class="kn">import</span> <span class="n">astra_c</span> <span class="k">as</span> <span class="n">a</span>
+
+<div class="viewcode-block" id="credits"><a class="viewcode-back" href="../../astra.html#astra.astra.credits">[docs]</a><span class="k">def</span> <span class="nf">credits</span><span class="p">():</span>
+    <span class="sd">&quot;&quot;&quot;Print credits of the ASTRA Toolbox.&quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">a</span><span class="o">.</span><span class="n">credits</span><span class="p">()</span>
+
+</div>
+<div class="viewcode-block" id="use_cuda"><a class="viewcode-back" href="../../astra.html#astra.astra.use_cuda">[docs]</a><span class="k">def</span> <span class="nf">use_cuda</span><span class="p">():</span>
+    <span class="sd">&quot;&quot;&quot;Test if CUDA is enabled.</span>
+<span class="sd">    </span>
+<span class="sd">    :returns: :class:`bool` -- ``True`` if CUDA is enabled.</span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">a</span><span class="o">.</span><span class="n">use_cuda</span><span class="p">()</span>
+
+</div>
+<div class="viewcode-block" id="version"><a class="viewcode-back" href="../../astra.html#astra.astra.version">[docs]</a><span class="k">def</span> <span class="nf">version</span><span class="p">(</span><span class="n">printToScreen</span><span class="o">=</span><span class="bp">False</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Check version of the ASTRA Toolbox.</span>
+<span class="sd">    </span>
+<span class="sd">    :param printToScreen: If ``True``, print version string. If ``False``, return version integer.</span>
+<span class="sd">    :type printToScreen: :class:`bool`</span>
+<span class="sd">    :returns: :class:`string` or :class:`int` -- The version string or integer.</span>
+<span class="sd">    </span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">a</span><span class="o">.</span><span class="n">version</span><span class="p">(</span><span class="n">printToScreen</span><span class="p">)</span>
+</div>
+<div class="viewcode-block" id="set_gpu_index"><a class="viewcode-back" href="../../astra.html#astra.astra.set_gpu_index">[docs]</a><span class="k">def</span> <span class="nf">set_gpu_index</span><span class="p">(</span><span class="n">idx</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Set default GPU index to use.</span>
+<span class="sd">    </span>
+<span class="sd">    :param idx: GPU index</span>
+<span class="sd">    :type idx: :class:`int`</span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="n">a</span><span class="o">.</span><span class="n">set_gpu_index</span><span class="p">(</span><span class="n">idx</span><span class="p">)</span></div>
+</pre></div>
+
+          </div>
+        </div>
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diff --git a/python/docSRC/_build/html/_modules/astra/creators.html b/python/docSRC/_build/html/_modules/astra/creators.html
new file mode 100644
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@@ -0,0 +1,668 @@
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+        <div class="bodywrapper">
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+            
+  <h1>Source code for astra.creators</h1><div class="highlight"><pre>
+<span class="c">#-----------------------------------------------------------------------</span>
+<span class="c">#Copyright 2013 Centrum Wiskunde &amp; Informatica, Amsterdam</span>
+<span class="c">#</span>
+<span class="c">#Author: Daniel M. Pelt</span>
+<span class="c">#Contact: D.M.Pelt@cwi.nl</span>
+<span class="c">#Website: http://dmpelt.github.io/pyastratoolbox/</span>
+<span class="c">#</span>
+<span class="c">#</span>
+<span class="c">#This file is part of the Python interface to the</span>
+<span class="c">#All Scale Tomographic Reconstruction Antwerp Toolbox (&quot;ASTRA Toolbox&quot;).</span>
+<span class="c">#</span>
+<span class="c">#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify</span>
+<span class="c">#it under the terms of the GNU General Public License as published by</span>
+<span class="c">#the Free Software Foundation, either version 3 of the License, or</span>
+<span class="c">#(at your option) any later version.</span>
+<span class="c">#</span>
+<span class="c">#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,</span>
+<span class="c">#but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
+<span class="c">#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
+<span class="c">#GNU General Public License for more details.</span>
+<span class="c">#</span>
+<span class="c">#You should have received a copy of the GNU General Public License</span>
+<span class="c">#along with the Python interface to the ASTRA Toolbox. If not, see &lt;http://www.gnu.org/licenses/&gt;.</span>
+<span class="c">#</span>
+<span class="c">#-----------------------------------------------------------------------</span>
+
+<span class="kn">import</span> <span class="nn">six</span>
+<span class="kn">import</span> <span class="nn">numpy</span> <span class="kn">as</span> <span class="nn">np</span>
+<span class="kn">import</span> <span class="nn">math</span>
+<span class="kn">from</span> <span class="nn">.</span> <span class="kn">import</span> <span class="n">data2d</span>
+<span class="kn">from</span> <span class="nn">.</span> <span class="kn">import</span> <span class="n">data3d</span>
+<span class="kn">from</span> <span class="nn">.</span> <span class="kn">import</span> <span class="n">projector</span>
+<span class="kn">from</span> <span class="nn">.</span> <span class="kn">import</span> <span class="n">algorithm</span>
+
+<div class="viewcode-block" id="astra_dict"><a class="viewcode-back" href="../../creators.html#astra.creators.astra_dict">[docs]</a><span class="k">def</span> <span class="nf">astra_dict</span><span class="p">(</span><span class="n">intype</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Creates a dict to use with the ASTRA Toolbox.</span>
+<span class="sd">    </span>
+<span class="sd">    :param intype: Type of the ASTRA object.</span>
+<span class="sd">    :type intype: :class:`string`</span>
+<span class="sd">    :returns: :class:`dict` -- An ASTRA dict of type ``intype``.</span>
+<span class="sd">    </span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">if</span> <span class="n">intype</span> <span class="o">==</span> <span class="s">&#39;SIRT_CUDA2&#39;</span><span class="p">:</span>
+        <span class="n">intype</span> <span class="o">=</span> <span class="s">&#39;SIRT_CUDA&#39;</span>
+        <span class="n">six</span><span class="o">.</span><span class="n">print_</span><span class="p">(</span><span class="s">&#39;SIRT_CUDA2 has been deprecated. Use SIRT_CUDA instead.&#39;</span><span class="p">)</span>
+    <span class="k">elif</span> <span class="n">intype</span> <span class="o">==</span> <span class="s">&#39;FP_CUDA2&#39;</span><span class="p">:</span>
+        <span class="n">intype</span> <span class="o">=</span> <span class="s">&#39;FP_CUDA&#39;</span>
+        <span class="n">six</span><span class="o">.</span><span class="n">print_</span><span class="p">(</span><span class="s">&#39;FP_CUDA2 has been deprecated. Use FP_CUDA instead.&#39;</span><span class="p">)</span>
+    <span class="k">return</span> <span class="p">{</span><span class="s">&#39;type&#39;</span><span class="p">:</span> <span class="n">intype</span><span class="p">}</span>
+</div>
+<div class="viewcode-block" id="create_vol_geom"><a class="viewcode-back" href="../../creators.html#astra.creators.create_vol_geom">[docs]</a><span class="k">def</span> <span class="nf">create_vol_geom</span><span class="p">(</span><span class="o">*</span><span class="n">varargin</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Create a volume geometry structure.</span>
+
+<span class="sd">This method can be called in a number of ways:</span>
+
+<span class="sd">``create_vol_geom(N)``:</span>
+<span class="sd">    :returns: A 2D volume geometry of size :math:`N \\times N`.</span>
+
+<span class="sd">``create_vol_geom((M, N))``:</span>
+<span class="sd">    :returns: A 2D volume geometry of size :math:`M \\times N`.</span>
+
+<span class="sd">``create_vol_geom(M, N)``:</span>
+<span class="sd">    :returns: A 2D volume geometry of size :math:`M \\times N`.</span>
+
+<span class="sd">``create_vol_geom(M, N, minx, maxx, miny, maxy)``:</span>
+<span class="sd">    :returns: A 2D volume geometry of size :math:`M \\times N`, windowed as :math:`minx \\leq x \\leq maxx` and :math:`miny \\leq y \\leq maxy`.</span>
+
+<span class="sd">``create_vol_geom((M, N, Z))``:</span>
+<span class="sd">    :returns: A 3D volume geometry of size :math:`M \\times N \\times Z`.</span>
+
+<span class="sd">``create_vol_geom(M, N, Z)``:</span>
+<span class="sd">    :returns: A 3D volume geometry of size :math:`M \\times N \\times Z`.</span>
+
+<span class="sd">&quot;&quot;&quot;</span>
+    <span class="n">vol_geom</span> <span class="o">=</span> <span class="p">{</span><span class="s">&#39;option&#39;</span><span class="p">:</span> <span class="p">{}}</span>
+    <span class="c"># astra_create_vol_geom(row_count)</span>
+    <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">varargin</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">varargin</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="nb">int</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span>
+        <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;GridRowCount&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">varargin</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
+        <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;GridColCount&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">varargin</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
+        <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">][</span><span class="s">&#39;WindowMinX&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="o">-</span><span class="n">varargin</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">/</span> <span class="mf">2.</span>
+        <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">][</span><span class="s">&#39;WindowMaxX&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">varargin</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">/</span> <span class="mf">2.</span>
+        <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">][</span><span class="s">&#39;WindowMinY&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="o">-</span><span class="n">varargin</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">/</span> <span class="mf">2.</span>
+        <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">][</span><span class="s">&#39;WindowMaxY&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">varargin</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">/</span> <span class="mf">2.</span>
+    <span class="c"># astra_create_vol_geom([row_count col_count])</span>
+    <span class="k">elif</span> <span class="nb">len</span><span class="p">(</span><span class="n">varargin</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span> <span class="ow">and</span> <span class="nb">len</span><span class="p">(</span><span class="n">varargin</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span> <span class="o">==</span> <span class="mi">2</span><span class="p">:</span>
+        <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;GridRowCount&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">varargin</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="mi">0</span><span class="p">]</span>
+        <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;GridColCount&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">varargin</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="mi">1</span><span class="p">]</span>
+        <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">][</span><span class="s">&#39;WindowMinX&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="o">-</span><span class="n">varargin</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="mi">1</span><span class="p">]</span> <span class="o">/</span> <span class="mf">2.</span>
+        <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">][</span><span class="s">&#39;WindowMaxX&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">varargin</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="mi">1</span><span class="p">]</span> <span class="o">/</span> <span class="mf">2.</span>
+        <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">][</span><span class="s">&#39;WindowMinY&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="o">-</span><span class="n">varargin</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="mi">0</span><span class="p">]</span> <span class="o">/</span> <span class="mf">2.</span>
+        <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">][</span><span class="s">&#39;WindowMaxY&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">varargin</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="mi">0</span><span class="p">]</span> <span class="o">/</span> <span class="mf">2.</span>
+    <span class="c"># astra_create_vol_geom([row_count col_count slice_count])</span>
+    <span class="k">elif</span> <span class="nb">len</span><span class="p">(</span><span class="n">varargin</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span> <span class="ow">and</span> <span class="nb">len</span><span class="p">(</span><span class="n">varargin</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span> <span class="o">==</span> <span class="mi">3</span><span class="p">:</span>
+        <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;GridRowCount&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">varargin</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="mi">0</span><span class="p">]</span>
+        <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;GridColCount&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">varargin</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="mi">1</span><span class="p">]</span>
+        <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;GridSliceCount&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">varargin</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="mi">2</span><span class="p">]</span>
+        <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">][</span><span class="s">&#39;WindowMinX&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="o">-</span><span class="n">varargin</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="mi">1</span><span class="p">]</span> <span class="o">/</span> <span class="mf">2.</span>
+        <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">][</span><span class="s">&#39;WindowMaxX&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">varargin</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="mi">1</span><span class="p">]</span> <span class="o">/</span> <span class="mf">2.</span>
+        <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">][</span><span class="s">&#39;WindowMinY&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="o">-</span><span class="n">varargin</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="mi">0</span><span class="p">]</span> <span class="o">/</span> <span class="mf">2.</span>
+        <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">][</span><span class="s">&#39;WindowMaxY&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">varargin</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="mi">0</span><span class="p">]</span> <span class="o">/</span> <span class="mf">2.</span>
+        <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">][</span><span class="s">&#39;WindowMinZ&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="o">-</span><span class="n">varargin</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="mi">2</span><span class="p">]</span> <span class="o">/</span> <span class="mf">2.</span>
+        <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">][</span><span class="s">&#39;WindowMaxZ&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">varargin</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="mi">2</span><span class="p">]</span> <span class="o">/</span> <span class="mf">2.</span>
+    <span class="c"># astra_create_vol_geom(row_count, col_count)</span>
+    <span class="k">elif</span> <span class="nb">len</span><span class="p">(</span><span class="n">varargin</span><span class="p">)</span> <span class="o">==</span> <span class="mi">2</span><span class="p">:</span>
+        <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;GridRowCount&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">varargin</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
+        <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;GridColCount&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">varargin</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
+        <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">][</span><span class="s">&#39;WindowMinX&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="o">-</span><span class="n">varargin</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">/</span> <span class="mf">2.</span>
+        <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">][</span><span class="s">&#39;WindowMaxX&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">varargin</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">/</span> <span class="mf">2.</span>
+        <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">][</span><span class="s">&#39;WindowMinY&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="o">-</span><span class="n">varargin</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">/</span> <span class="mf">2.</span>
+        <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">][</span><span class="s">&#39;WindowMaxY&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">varargin</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">/</span> <span class="mf">2.</span>
+    <span class="c"># astra_create_vol_geom(row_count, col_count, min_x, max_x, min_y, max_y)</span>
+    <span class="k">elif</span> <span class="nb">len</span><span class="p">(</span><span class="n">varargin</span><span class="p">)</span> <span class="o">==</span> <span class="mi">6</span><span class="p">:</span>
+        <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;GridRowCount&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">varargin</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
+        <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;GridColCount&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">varargin</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
+        <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">][</span><span class="s">&#39;WindowMinX&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">varargin</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span>
+        <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">][</span><span class="s">&#39;WindowMaxX&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">varargin</span><span class="p">[</span><span class="mi">3</span><span class="p">]</span>
+        <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">][</span><span class="s">&#39;WindowMinY&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">varargin</span><span class="p">[</span><span class="mi">4</span><span class="p">]</span>
+        <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">][</span><span class="s">&#39;WindowMaxY&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">varargin</span><span class="p">[</span><span class="mi">5</span><span class="p">]</span>
+    <span class="c"># astra_create_vol_geom(row_count, col_count, slice_count)</span>
+    <span class="k">elif</span> <span class="nb">len</span><span class="p">(</span><span class="n">varargin</span><span class="p">)</span> <span class="o">==</span> <span class="mi">3</span><span class="p">:</span>
+        <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;GridRowCount&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">varargin</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
+        <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;GridColCount&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">varargin</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
+        <span class="n">vol_geom</span><span class="p">[</span><span class="s">&#39;GridSliceCount&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">varargin</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span>
+    <span class="k">return</span> <span class="n">vol_geom</span>
+
+</div>
+<div class="viewcode-block" id="create_proj_geom"><a class="viewcode-back" href="../../creators.html#astra.creators.create_proj_geom">[docs]</a><span class="k">def</span> <span class="nf">create_proj_geom</span><span class="p">(</span><span class="n">intype</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Create a projection geometry.</span>
+
+<span class="sd">This method can be called in a number of ways:</span>
+
+<span class="sd">``create_proj_geom(&#39;parallel&#39;, detector_spacing, det_count, angles)``:</span>
+
+<span class="sd">:param detector_spacing: Distance between two adjacent detector pixels.</span>
+<span class="sd">:type detector_spacing: :class:`float`</span>
+<span class="sd">:param det_count: Number of detector pixels.</span>
+<span class="sd">:type det_count: :class:`int`</span>
+<span class="sd">:param angles: Array of angles in radians.</span>
+<span class="sd">:type angles: :class:`numpy.ndarray`</span>
+<span class="sd">:returns: A parallel projection geometry.</span>
+
+
+<span class="sd">``create_proj_geom(&#39;fanflat&#39;, det_width, det_count, angles, source_origin, source_det)``:</span>
+
+<span class="sd">:param det_width: Size of a detector pixel.</span>
+<span class="sd">:type det_width: :class:`float`</span>
+<span class="sd">:param det_count: Number of detector pixels.</span>
+<span class="sd">:type det_count: :class:`int`</span>
+<span class="sd">:param angles: Array of angles in radians.</span>
+<span class="sd">:type angles: :class:`numpy.ndarray`</span>
+<span class="sd">:param source_origin: Position of the source.</span>
+<span class="sd">:param source_det: Position of the detector</span>
+<span class="sd">:returns: A fan-beam projection geometry.</span>
+
+<span class="sd">``create_proj_geom(&#39;fanflat_vec&#39;, det_count, V)``:</span>
+
+<span class="sd">:param det_count: Number of detector pixels.</span>
+<span class="sd">:type det_count: :class:`int`</span>
+<span class="sd">:param V: Vector array.</span>
+<span class="sd">:type V: :class:`numpy.ndarray`</span>
+<span class="sd">:returns: A fan-beam projection geometry.</span>
+
+<span class="sd">``create_proj_geom(&#39;parallel3d&#39;, detector_spacing_x, detector_spacing_y, det_row_count, det_col_count, angles)``:</span>
+
+<span class="sd">:param detector_spacing_*: Distance between two adjacent detector pixels.</span>
+<span class="sd">:type detector_spacing_*: :class:`float`</span>
+<span class="sd">:param det_row_count: Number of detector pixel rows.</span>
+<span class="sd">:type det_row_count: :class:`int`</span>
+<span class="sd">:param det_col_count: Number of detector pixel columns.</span>
+<span class="sd">:type det_col_count: :class:`int`</span>
+<span class="sd">:param angles: Array of angles in radians.</span>
+<span class="sd">:type angles: :class:`numpy.ndarray`</span>
+<span class="sd">:returns: A parallel projection geometry.</span>
+
+<span class="sd">``create_proj_geom(&#39;cone&#39;, detector_spacing_x, detector_spacing_y, det_row_count, det_col_count, angles, source_origin, source_det)``:</span>
+
+<span class="sd">:param detector_spacing_*: Distance between two adjacent detector pixels.</span>
+<span class="sd">:type detector_spacing_*: :class:`float`</span>
+<span class="sd">:param det_row_count: Number of detector pixel rows.</span>
+<span class="sd">:type det_row_count: :class:`int`</span>
+<span class="sd">:param det_col_count: Number of detector pixel columns.</span>
+<span class="sd">:type det_col_count: :class:`int`</span>
+<span class="sd">:param angles: Array of angles in radians.</span>
+<span class="sd">:type angles: :class:`numpy.ndarray`</span>
+<span class="sd">:param source_origin: Distance between point source and origin.</span>
+<span class="sd">:type source_origin: :class:`float`</span>
+<span class="sd">:param source_det: Distance between the detector and origin.</span>
+<span class="sd">:type source_det: :class:`float`</span>
+<span class="sd">:returns: A cone-beam projection geometry.</span>
+
+<span class="sd">``create_proj_geom(&#39;cone_vec&#39;, det_row_count, det_col_count, V)``:</span>
+
+<span class="sd">:param det_row_count: Number of detector pixel rows.</span>
+<span class="sd">:type det_row_count: :class:`int`</span>
+<span class="sd">:param det_col_count: Number of detector pixel columns.</span>
+<span class="sd">:type det_col_count: :class:`int`</span>
+<span class="sd">:param V: Vector array.</span>
+<span class="sd">:type V: :class:`numpy.ndarray`</span>
+<span class="sd">:returns: A cone-beam projection geometry.</span>
+
+<span class="sd">``create_proj_geom(&#39;parallel3d_vec&#39;, det_row_count, det_col_count, V)``:</span>
+
+<span class="sd">:param det_row_count: Number of detector pixel rows.</span>
+<span class="sd">:type det_row_count: :class:`int`</span>
+<span class="sd">:param det_col_count: Number of detector pixel columns.</span>
+<span class="sd">:type det_col_count: :class:`int`</span>
+<span class="sd">:param V: Vector array.</span>
+<span class="sd">:type V: :class:`numpy.ndarray`</span>
+<span class="sd">:returns: A parallel projection geometry.</span>
+
+<span class="sd">``create_proj_geom(&#39;sparse_matrix&#39;, det_width, det_count, angles, matrix_id)``:</span>
+
+<span class="sd">:param det_width: Size of a detector pixel.</span>
+<span class="sd">:type det_width: :class:`float`</span>
+<span class="sd">:param det_count: Number of detector pixels.</span>
+<span class="sd">:type det_count: :class:`int`</span>
+<span class="sd">:param angles: Array of angles in radians.</span>
+<span class="sd">:type angles: :class:`numpy.ndarray`</span>
+<span class="sd">:param matrix_id: ID of the sparse matrix.</span>
+<span class="sd">:type matrix_id: :class:`int`</span>
+<span class="sd">:returns: A projection geometry based on a sparse matrix.</span>
+
+<span class="sd">&quot;&quot;&quot;</span>
+    <span class="k">if</span> <span class="n">intype</span> <span class="o">==</span> <span class="s">&#39;parallel&#39;</span><span class="p">:</span>
+        <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">args</span><span class="p">)</span> <span class="o">&lt;</span> <span class="mi">3</span><span class="p">:</span>
+            <span class="k">raise</span> <span class="ne">Exception</span><span class="p">(</span>
+                <span class="s">&#39;not enough variables: astra_create_proj_geom(parallel, detector_spacing, det_count, angles)&#39;</span><span class="p">)</span>
+        <span class="k">return</span> <span class="p">{</span><span class="s">&#39;type&#39;</span><span class="p">:</span> <span class="s">&#39;parallel&#39;</span><span class="p">,</span> <span class="s">&#39;DetectorWidth&#39;</span><span class="p">:</span> <span class="n">args</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="s">&#39;DetectorCount&#39;</span><span class="p">:</span> <span class="n">args</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="s">&#39;ProjectionAngles&#39;</span><span class="p">:</span> <span class="n">args</span><span class="p">[</span><span class="mi">2</span><span class="p">]}</span>
+    <span class="k">elif</span> <span class="n">intype</span> <span class="o">==</span> <span class="s">&#39;fanflat&#39;</span><span class="p">:</span>
+        <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">args</span><span class="p">)</span> <span class="o">&lt;</span> <span class="mi">5</span><span class="p">:</span>
+            <span class="k">raise</span> <span class="ne">Exception</span><span class="p">(</span><span class="s">&#39;not enough variables: astra_create_proj_geom(fanflat, det_width, det_count, angles, source_origin, source_det)&#39;</span><span class="p">)</span>
+        <span class="k">return</span> <span class="p">{</span><span class="s">&#39;type&#39;</span><span class="p">:</span> <span class="s">&#39;fanflat&#39;</span><span class="p">,</span> <span class="s">&#39;DetectorWidth&#39;</span><span class="p">:</span> <span class="n">args</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="s">&#39;DetectorCount&#39;</span><span class="p">:</span> <span class="n">args</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="s">&#39;ProjectionAngles&#39;</span><span class="p">:</span> <span class="n">args</span><span class="p">[</span><span class="mi">2</span><span class="p">],</span> <span class="s">&#39;DistanceOriginSource&#39;</span><span class="p">:</span> <span class="n">args</span><span class="p">[</span><span class="mi">3</span><span class="p">],</span> <span class="s">&#39;DistanceOriginDetector&#39;</span><span class="p">:</span> <span class="n">args</span><span class="p">[</span><span class="mi">4</span><span class="p">]}</span>
+    <span class="k">elif</span> <span class="n">intype</span> <span class="o">==</span> <span class="s">&#39;fanflat_vec&#39;</span><span class="p">:</span>
+        <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">args</span><span class="p">)</span> <span class="o">&lt;</span> <span class="mi">2</span><span class="p">:</span>
+            <span class="k">raise</span> <span class="ne">Exception</span><span class="p">(</span><span class="s">&#39;not enough variables: astra_create_proj_geom(fanflat_vec, det_count, V)&#39;</span><span class="p">)</span>
+        <span class="k">if</span> <span class="ow">not</span> <span class="n">args</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="o">.</span><span class="n">shape</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">==</span> <span class="mi">6</span><span class="p">:</span>
+            <span class="k">raise</span> <span class="ne">Exception</span><span class="p">(</span><span class="s">&#39;V should be a Nx6 matrix, with N the number of projections&#39;</span><span class="p">)</span>
+        <span class="k">return</span> <span class="p">{</span><span class="s">&#39;type&#39;</span><span class="p">:</span><span class="s">&#39;fanflat_vec&#39;</span><span class="p">,</span> <span class="s">&#39;DetectorCount&#39;</span><span class="p">:</span><span class="n">args</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="s">&#39;Vectors&#39;</span><span class="p">:</span><span class="n">args</span><span class="p">[</span><span class="mi">1</span><span class="p">]}</span>
+    <span class="k">elif</span> <span class="n">intype</span> <span class="o">==</span> <span class="s">&#39;parallel3d&#39;</span><span class="p">:</span>
+        <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">args</span><span class="p">)</span> <span class="o">&lt;</span> <span class="mi">5</span><span class="p">:</span>
+            <span class="k">raise</span> <span class="ne">Exception</span><span class="p">(</span><span class="s">&#39;not enough variables: astra_create_proj_geom(parallel3d, detector_spacing_x, detector_spacing_y, det_row_count, det_col_count, angles)&#39;</span><span class="p">)</span>
+        <span class="k">return</span> <span class="p">{</span><span class="s">&#39;type&#39;</span><span class="p">:</span><span class="s">&#39;parallel3d&#39;</span><span class="p">,</span> <span class="s">&#39;DetectorSpacingX&#39;</span><span class="p">:</span><span class="n">args</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="s">&#39;DetectorSpacingY&#39;</span><span class="p">:</span><span class="n">args</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="s">&#39;DetectorRowCount&#39;</span><span class="p">:</span><span class="n">args</span><span class="p">[</span><span class="mi">2</span><span class="p">],</span> <span class="s">&#39;DetectorColCount&#39;</span><span class="p">:</span><span class="n">args</span><span class="p">[</span><span class="mi">3</span><span class="p">],</span><span class="s">&#39;ProjectionAngles&#39;</span><span class="p">:</span><span class="n">args</span><span class="p">[</span><span class="mi">4</span><span class="p">]}</span>
+    <span class="k">elif</span> <span class="n">intype</span> <span class="o">==</span> <span class="s">&#39;cone&#39;</span><span class="p">:</span>
+        <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">args</span><span class="p">)</span> <span class="o">&lt;</span> <span class="mi">7</span><span class="p">:</span>
+            <span class="k">raise</span> <span class="ne">Exception</span><span class="p">(</span><span class="s">&#39;not enough variables: astra_create_proj_geom(cone, detector_spacing_x, detector_spacing_y, det_row_count, det_col_count, angles, source_origin, source_det)&#39;</span><span class="p">)</span>
+        <span class="k">return</span> <span class="p">{</span><span class="s">&#39;type&#39;</span><span class="p">:</span>	<span class="s">&#39;cone&#39;</span><span class="p">,</span><span class="s">&#39;DetectorSpacingX&#39;</span><span class="p">:</span><span class="n">args</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="s">&#39;DetectorSpacingY&#39;</span><span class="p">:</span><span class="n">args</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="s">&#39;DetectorRowCount&#39;</span><span class="p">:</span><span class="n">args</span><span class="p">[</span><span class="mi">2</span><span class="p">],</span><span class="s">&#39;DetectorColCount&#39;</span><span class="p">:</span><span class="n">args</span><span class="p">[</span><span class="mi">3</span><span class="p">],</span><span class="s">&#39;ProjectionAngles&#39;</span><span class="p">:</span><span class="n">args</span><span class="p">[</span><span class="mi">4</span><span class="p">],</span><span class="s">&#39;DistanceOriginSource&#39;</span><span class="p">:</span>	<span class="n">args</span><span class="p">[</span><span class="mi">5</span><span class="p">],</span><span class="s">&#39;DistanceOriginDetector&#39;</span><span class="p">:</span><span class="n">args</span><span class="p">[</span><span class="mi">6</span><span class="p">]}</span>
+    <span class="k">elif</span> <span class="n">intype</span> <span class="o">==</span> <span class="s">&#39;cone_vec&#39;</span><span class="p">:</span>
+        <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">args</span><span class="p">)</span> <span class="o">&lt;</span> <span class="mi">3</span><span class="p">:</span>
+            <span class="k">raise</span> <span class="ne">Exception</span><span class="p">(</span><span class="s">&#39;not enough variables: astra_create_proj_geom(cone_vec, det_row_count, det_col_count, V)&#39;</span><span class="p">)</span>
+        <span class="k">if</span> <span class="ow">not</span> <span class="n">args</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span><span class="o">.</span><span class="n">shape</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">==</span> <span class="mi">12</span><span class="p">:</span>
+            <span class="k">raise</span> <span class="ne">Exception</span><span class="p">(</span><span class="s">&#39;V should be a Nx12 matrix, with N the number of projections&#39;</span><span class="p">)</span>
+        <span class="k">return</span> <span class="p">{</span><span class="s">&#39;type&#39;</span><span class="p">:</span> <span class="s">&#39;cone_vec&#39;</span><span class="p">,</span><span class="s">&#39;DetectorRowCount&#39;</span><span class="p">:</span><span class="n">args</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span><span class="s">&#39;DetectorColCount&#39;</span><span class="p">:</span><span class="n">args</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span><span class="s">&#39;Vectors&#39;</span><span class="p">:</span><span class="n">args</span><span class="p">[</span><span class="mi">2</span><span class="p">]}</span>
+    <span class="k">elif</span> <span class="n">intype</span> <span class="o">==</span> <span class="s">&#39;parallel3d_vec&#39;</span><span class="p">:</span>
+        <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">args</span><span class="p">)</span> <span class="o">&lt;</span> <span class="mi">3</span><span class="p">:</span>
+            <span class="k">raise</span> <span class="ne">Exception</span><span class="p">(</span><span class="s">&#39;not enough variables: astra_create_proj_geom(parallel3d_vec, det_row_count, det_col_count, V)&#39;</span><span class="p">)</span>
+        <span class="k">if</span> <span class="ow">not</span> <span class="n">args</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span><span class="o">.</span><span class="n">shape</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">==</span> <span class="mi">12</span><span class="p">:</span>
+            <span class="k">raise</span> <span class="ne">Exception</span><span class="p">(</span><span class="s">&#39;V should be a Nx12 matrix, with N the number of projections&#39;</span><span class="p">)</span>
+        <span class="k">return</span> <span class="p">{</span><span class="s">&#39;type&#39;</span><span class="p">:</span> <span class="s">&#39;parallel3d_vec&#39;</span><span class="p">,</span><span class="s">&#39;DetectorRowCount&#39;</span><span class="p">:</span><span class="n">args</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span><span class="s">&#39;DetectorColCount&#39;</span><span class="p">:</span><span class="n">args</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span><span class="s">&#39;Vectors&#39;</span><span class="p">:</span><span class="n">args</span><span class="p">[</span><span class="mi">2</span><span class="p">]}</span>    
+    <span class="k">elif</span> <span class="n">intype</span> <span class="o">==</span> <span class="s">&#39;sparse_matrix&#39;</span><span class="p">:</span>
+        <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">args</span><span class="p">)</span> <span class="o">&lt;</span> <span class="mi">4</span><span class="p">:</span>
+            <span class="k">raise</span> <span class="ne">Exception</span><span class="p">(</span>
+                <span class="s">&#39;not enough variables: astra_create_proj_geom(sparse_matrix, det_width, det_count, angles, matrix_id)&#39;</span><span class="p">)</span>
+        <span class="k">return</span> <span class="p">{</span><span class="s">&#39;type&#39;</span><span class="p">:</span> <span class="s">&#39;sparse_matrix&#39;</span><span class="p">,</span> <span class="s">&#39;DetectorWidth&#39;</span><span class="p">:</span> <span class="n">args</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="s">&#39;DetectorCount&#39;</span><span class="p">:</span> <span class="n">args</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="s">&#39;ProjectionAngles&#39;</span><span class="p">:</span> <span class="n">args</span><span class="p">[</span><span class="mi">2</span><span class="p">],</span> <span class="s">&#39;MatrixID&#39;</span><span class="p">:</span> <span class="n">args</span><span class="p">[</span><span class="mi">3</span><span class="p">]}</span>
+    <span class="k">else</span><span class="p">:</span>
+        <span class="k">raise</span> <span class="ne">Exception</span><span class="p">(</span><span class="s">&#39;Error: unknown type &#39;</span> <span class="o">+</span> <span class="n">intype</span><span class="p">)</span> 
+
+</div>
+<div class="viewcode-block" id="create_backprojection"><a class="viewcode-back" href="../../creators.html#astra.creators.create_backprojection">[docs]</a><span class="k">def</span> <span class="nf">create_backprojection</span><span class="p">(</span><span class="n">data</span><span class="p">,</span> <span class="n">proj_id</span><span class="p">,</span> <span class="n">useCUDA</span><span class="o">=</span><span class="bp">False</span><span class="p">,</span> <span class="n">returnData</span><span class="o">=</span><span class="bp">True</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Create a backprojection of a sinogram (2D).</span>
+
+<span class="sd">:param data: Sinogram data or ID.</span>
+<span class="sd">:type data: :class:`numpy.ndarray` or :class:`int`</span>
+<span class="sd">:param proj_id: ID of the projector to use.</span>
+<span class="sd">:type proj_id: :class:`int`</span>
+<span class="sd">:param useCUDA: If ``True``, use CUDA for the calculation.</span>
+<span class="sd">:type useCUDA: :class:`bool`</span>
+<span class="sd">:param returnData: If False, only return the ID of the backprojection.</span>
+<span class="sd">:type returnData: :class:`bool`</span>
+<span class="sd">:returns: :class:`int` or (:class:`int`, :class:`numpy.ndarray`) -- If ``returnData=False``, returns the ID of the backprojection. Otherwise, returns a tuple containing the ID of the backprojection and the backprojection itself, in that order.</span>
+
+<span class="sd">&quot;&quot;&quot;</span>
+    <span class="n">proj_geom</span> <span class="o">=</span> <span class="n">projector</span><span class="o">.</span><span class="n">projection_geometry</span><span class="p">(</span><span class="n">proj_id</span><span class="p">)</span>
+    <span class="n">vol_geom</span> <span class="o">=</span> <span class="n">projector</span><span class="o">.</span><span class="n">volume_geometry</span><span class="p">(</span><span class="n">proj_id</span><span class="p">)</span>
+    <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">data</span><span class="p">,</span> <span class="n">np</span><span class="o">.</span><span class="n">ndarray</span><span class="p">):</span>
+        <span class="n">sino_id</span> <span class="o">=</span> <span class="n">data2d</span><span class="o">.</span><span class="n">create</span><span class="p">(</span><span class="s">&#39;-sino&#39;</span><span class="p">,</span> <span class="n">proj_geom</span><span class="p">,</span> <span class="n">data</span><span class="p">)</span>
+    <span class="k">else</span><span class="p">:</span>
+        <span class="n">sino_id</span> <span class="o">=</span> <span class="n">data</span>
+    <span class="n">vol_id</span> <span class="o">=</span> <span class="n">data2d</span><span class="o">.</span><span class="n">create</span><span class="p">(</span><span class="s">&#39;-vol&#39;</span><span class="p">,</span> <span class="n">vol_geom</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
+
+    <span class="n">algString</span> <span class="o">=</span> <span class="s">&#39;BP&#39;</span>
+    <span class="k">if</span> <span class="n">useCUDA</span><span class="p">:</span>
+        <span class="n">algString</span> <span class="o">=</span> <span class="n">algString</span> <span class="o">+</span> <span class="s">&#39;_CUDA&#39;</span>
+
+    <span class="n">cfg</span> <span class="o">=</span> <span class="n">astra_dict</span><span class="p">(</span><span class="n">algString</span><span class="p">)</span>
+    <span class="k">if</span> <span class="ow">not</span> <span class="n">useCUDA</span><span class="p">:</span>
+        <span class="n">cfg</span><span class="p">[</span><span class="s">&#39;ProjectorId&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">proj_id</span>
+    <span class="n">cfg</span><span class="p">[</span><span class="s">&#39;ProjectionDataId&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">sino_id</span>
+    <span class="n">cfg</span><span class="p">[</span><span class="s">&#39;ReconstructionDataId&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">vol_id</span>
+    <span class="n">alg_id</span> <span class="o">=</span> <span class="n">algorithm</span><span class="o">.</span><span class="n">create</span><span class="p">(</span><span class="n">cfg</span><span class="p">)</span>
+    <span class="n">algorithm</span><span class="o">.</span><span class="n">run</span><span class="p">(</span><span class="n">alg_id</span><span class="p">)</span>
+    <span class="n">algorithm</span><span class="o">.</span><span class="n">delete</span><span class="p">(</span><span class="n">alg_id</span><span class="p">)</span>
+
+    <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">data</span><span class="p">,</span> <span class="n">np</span><span class="o">.</span><span class="n">ndarray</span><span class="p">):</span>
+        <span class="n">data2d</span><span class="o">.</span><span class="n">delete</span><span class="p">(</span><span class="n">sino_id</span><span class="p">)</span>
+
+    <span class="k">if</span> <span class="n">returnData</span><span class="p">:</span>
+        <span class="k">return</span> <span class="n">vol_id</span><span class="p">,</span> <span class="n">data2d</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">vol_id</span><span class="p">)</span>
+    <span class="k">else</span><span class="p">:</span>
+        <span class="k">return</span> <span class="n">vol_id</span>
+</div>
+<div class="viewcode-block" id="create_backprojection3d_gpu"><a class="viewcode-back" href="../../creators.html#astra.creators.create_backprojection3d_gpu">[docs]</a><span class="k">def</span> <span class="nf">create_backprojection3d_gpu</span><span class="p">(</span><span class="n">data</span><span class="p">,</span> <span class="n">proj_geom</span><span class="p">,</span> <span class="n">vol_geom</span><span class="p">,</span> <span class="n">returnData</span><span class="o">=</span><span class="bp">True</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Create a backprojection of a sinogram (3D) using CUDA.</span>
+
+<span class="sd">:param data: Sinogram data or ID.</span>
+<span class="sd">:type data: :class:`numpy.ndarray` or :class:`int`</span>
+<span class="sd">:param proj_geom: Projection geometry.</span>
+<span class="sd">:type proj_geom: :class:`dict`</span>
+<span class="sd">:param vol_geom: Volume geometry.</span>
+<span class="sd">:type vol_geom: :class:`dict`</span>
+<span class="sd">:param returnData: If False, only return the ID of the backprojection.</span>
+<span class="sd">:type returnData: :class:`bool`</span>
+<span class="sd">:returns: :class:`int` or (:class:`int`, :class:`numpy.ndarray`) -- If ``returnData=False``, returns the ID of the backprojection. Otherwise, returns a tuple containing the ID of the backprojection and the backprojection itself, in that order.</span>
+
+<span class="sd">&quot;&quot;&quot;</span>
+    <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">data</span><span class="p">,</span> <span class="n">np</span><span class="o">.</span><span class="n">ndarray</span><span class="p">):</span>
+        <span class="n">sino_id</span> <span class="o">=</span> <span class="n">data3d</span><span class="o">.</span><span class="n">create</span><span class="p">(</span><span class="s">&#39;-sino&#39;</span><span class="p">,</span> <span class="n">proj_geom</span><span class="p">,</span> <span class="n">data</span><span class="p">)</span>
+    <span class="k">else</span><span class="p">:</span>
+        <span class="n">sino_id</span> <span class="o">=</span> <span class="n">data</span>
+
+    <span class="n">vol_id</span> <span class="o">=</span> <span class="n">data3d</span><span class="o">.</span><span class="n">create</span><span class="p">(</span><span class="s">&#39;-vol&#39;</span><span class="p">,</span> <span class="n">vol_geom</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
+
+    <span class="n">cfg</span> <span class="o">=</span> <span class="n">astra_dict</span><span class="p">(</span><span class="s">&#39;BP3D_CUDA&#39;</span><span class="p">)</span>
+    <span class="n">cfg</span><span class="p">[</span><span class="s">&#39;ProjectionDataId&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">sino_id</span>
+    <span class="n">cfg</span><span class="p">[</span><span class="s">&#39;ReconstructionDataId&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">vol_id</span>
+    <span class="n">alg_id</span> <span class="o">=</span> <span class="n">algorithm</span><span class="o">.</span><span class="n">create</span><span class="p">(</span><span class="n">cfg</span><span class="p">)</span>
+    <span class="n">algorithm</span><span class="o">.</span><span class="n">run</span><span class="p">(</span><span class="n">alg_id</span><span class="p">)</span>
+    <span class="n">algorithm</span><span class="o">.</span><span class="n">delete</span><span class="p">(</span><span class="n">alg_id</span><span class="p">)</span>
+
+    <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">data</span><span class="p">,</span> <span class="n">np</span><span class="o">.</span><span class="n">ndarray</span><span class="p">):</span>
+        <span class="n">data3d</span><span class="o">.</span><span class="n">delete</span><span class="p">(</span><span class="n">sino_id</span><span class="p">)</span>
+
+    <span class="k">if</span> <span class="n">returnData</span><span class="p">:</span>
+        <span class="k">return</span> <span class="n">vol_id</span><span class="p">,</span> <span class="n">data3d</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">vol_id</span><span class="p">)</span>
+    <span class="k">else</span><span class="p">:</span>
+        <span class="k">return</span> <span class="n">vol_id</span>
+
+</div>
+<div class="viewcode-block" id="create_sino"><a class="viewcode-back" href="../../creators.html#astra.creators.create_sino">[docs]</a><span class="k">def</span> <span class="nf">create_sino</span><span class="p">(</span><span class="n">data</span><span class="p">,</span> <span class="n">proj_id</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">proj_geom</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">vol_geom</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span>
+                <span class="n">useCUDA</span><span class="o">=</span><span class="bp">False</span><span class="p">,</span> <span class="n">returnData</span><span class="o">=</span><span class="bp">True</span><span class="p">,</span> <span class="n">gpuIndex</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Create a forward projection of an image (2D).</span>
+
+<span class="sd">    :param data: Image data or ID.</span>
+<span class="sd">    :type data: :class:`numpy.ndarray` or :class:`int`</span>
+<span class="sd">    :param proj_id: ID of the projector to use.</span>
+<span class="sd">    :type proj_id: :class:`int`</span>
+<span class="sd">    :param proj_geom: Projection geometry.</span>
+<span class="sd">    :type proj_geom: :class:`dict`</span>
+<span class="sd">    :param vol_geom: Volume geometry.</span>
+<span class="sd">    :type vol_geom: :class:`dict`</span>
+<span class="sd">    :param useCUDA: If ``True``, use CUDA for the calculation.</span>
+<span class="sd">    :type useCUDA: :class:`bool`</span>
+<span class="sd">    :param returnData: If False, only return the ID of the forward projection.</span>
+<span class="sd">    :type returnData: :class:`bool`</span>
+<span class="sd">    :param gpuIndex: Optional GPU index.</span>
+<span class="sd">    :type gpuIndex: :class:`int`</span>
+<span class="sd">    :returns: :class:`int` or (:class:`int`, :class:`numpy.ndarray`)</span>
+
+<span class="sd">    If ``returnData=False``, returns the ID of the forward</span>
+<span class="sd">    projection. Otherwise, returns a tuple containing the ID of the</span>
+<span class="sd">    forward projection and the forward projection itself, in that</span>
+<span class="sd">    order.</span>
+
+<span class="sd">    The geometry of setup is defined by ``proj_id`` or with</span>
+<span class="sd">    ``proj_geom`` and ``vol_geom``. If ``proj_id`` is given, then</span>
+<span class="sd">    ``proj_geom`` and ``vol_geom`` must be None and vice versa.</span>
+<span class="sd">&quot;&quot;&quot;</span>
+    <span class="k">if</span> <span class="n">proj_id</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span><span class="p">:</span>
+        <span class="n">proj_geom</span> <span class="o">=</span> <span class="n">projector</span><span class="o">.</span><span class="n">projection_geometry</span><span class="p">(</span><span class="n">proj_id</span><span class="p">)</span>
+        <span class="n">vol_geom</span> <span class="o">=</span> <span class="n">projector</span><span class="o">.</span><span class="n">volume_geometry</span><span class="p">(</span><span class="n">proj_id</span><span class="p">)</span>
+    <span class="k">elif</span> <span class="n">proj_geom</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span> <span class="ow">and</span> <span class="n">vol_geom</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span><span class="p">:</span>
+        <span class="k">if</span> <span class="ow">not</span> <span class="n">useCUDA</span><span class="p">:</span>
+            <span class="c"># We need more parameters to create projector.</span>
+            <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span>
+                <span class="sd">&quot;&quot;&quot;A ``proj_id`` is needed when CUDA is not used.&quot;&quot;&quot;</span><span class="p">)</span>
+    <span class="k">else</span><span class="p">:</span>
+        <span class="k">raise</span> <span class="ne">Exception</span><span class="p">(</span><span class="s">&quot;&quot;&quot;The geometry setup is not defined.</span>
+<span class="s">        The geometry of setup is defined by ``proj_id`` or with</span>
+<span class="s">        ``proj_geom`` and ``vol_geom``. If ``proj_id`` is given, then</span>
+<span class="s">        ``proj_geom`` and ``vol_geom`` must be None and vice versa.&quot;&quot;&quot;</span><span class="p">)</span>
+
+    <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">data</span><span class="p">,</span> <span class="n">np</span><span class="o">.</span><span class="n">ndarray</span><span class="p">):</span>
+        <span class="n">volume_id</span> <span class="o">=</span> <span class="n">data2d</span><span class="o">.</span><span class="n">create</span><span class="p">(</span><span class="s">&#39;-vol&#39;</span><span class="p">,</span> <span class="n">vol_geom</span><span class="p">,</span> <span class="n">data</span><span class="p">)</span>
+    <span class="k">else</span><span class="p">:</span>
+        <span class="n">volume_id</span> <span class="o">=</span> <span class="n">data</span>
+    <span class="n">sino_id</span> <span class="o">=</span> <span class="n">data2d</span><span class="o">.</span><span class="n">create</span><span class="p">(</span><span class="s">&#39;-sino&#39;</span><span class="p">,</span> <span class="n">proj_geom</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
+    <span class="n">algString</span> <span class="o">=</span> <span class="s">&#39;FP&#39;</span>
+    <span class="k">if</span> <span class="n">useCUDA</span><span class="p">:</span>
+        <span class="n">algString</span> <span class="o">=</span> <span class="n">algString</span> <span class="o">+</span> <span class="s">&#39;_CUDA&#39;</span>
+    <span class="n">cfg</span> <span class="o">=</span> <span class="n">astra_dict</span><span class="p">(</span><span class="n">algString</span><span class="p">)</span>
+    <span class="k">if</span> <span class="ow">not</span> <span class="n">useCUDA</span><span class="p">:</span>
+        <span class="n">cfg</span><span class="p">[</span><span class="s">&#39;ProjectorId&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">proj_id</span>
+    <span class="k">if</span> <span class="n">gpuIndex</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span><span class="p">:</span>
+        <span class="n">cfg</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="p">{</span><span class="s">&#39;GPUindex&#39;</span><span class="p">:</span> <span class="n">gpuIndex</span><span class="p">}</span>
+    <span class="n">cfg</span><span class="p">[</span><span class="s">&#39;ProjectionDataId&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">sino_id</span>
+    <span class="n">cfg</span><span class="p">[</span><span class="s">&#39;VolumeDataId&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">volume_id</span>
+    <span class="n">alg_id</span> <span class="o">=</span> <span class="n">algorithm</span><span class="o">.</span><span class="n">create</span><span class="p">(</span><span class="n">cfg</span><span class="p">)</span>
+    <span class="n">algorithm</span><span class="o">.</span><span class="n">run</span><span class="p">(</span><span class="n">alg_id</span><span class="p">)</span>
+    <span class="n">algorithm</span><span class="o">.</span><span class="n">delete</span><span class="p">(</span><span class="n">alg_id</span><span class="p">)</span>
+
+    <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">data</span><span class="p">,</span> <span class="n">np</span><span class="o">.</span><span class="n">ndarray</span><span class="p">):</span>
+        <span class="n">data2d</span><span class="o">.</span><span class="n">delete</span><span class="p">(</span><span class="n">volume_id</span><span class="p">)</span>
+    <span class="k">if</span> <span class="n">returnData</span><span class="p">:</span>
+        <span class="k">return</span> <span class="n">sino_id</span><span class="p">,</span> <span class="n">data2d</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">sino_id</span><span class="p">)</span>
+    <span class="k">else</span><span class="p">:</span>
+        <span class="k">return</span> <span class="n">sino_id</span>
+
+
+</div>
+<div class="viewcode-block" id="create_sino3d_gpu"><a class="viewcode-back" href="../../creators.html#astra.creators.create_sino3d_gpu">[docs]</a><span class="k">def</span> <span class="nf">create_sino3d_gpu</span><span class="p">(</span><span class="n">data</span><span class="p">,</span> <span class="n">proj_geom</span><span class="p">,</span> <span class="n">vol_geom</span><span class="p">,</span> <span class="n">returnData</span><span class="o">=</span><span class="bp">True</span><span class="p">,</span> <span class="n">gpuIndex</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Create a forward projection of an image (3D).</span>
+
+<span class="sd">:param data: Image data or ID.</span>
+<span class="sd">:type data: :class:`numpy.ndarray` or :class:`int`</span>
+<span class="sd">:param proj_geom: Projection geometry.</span>
+<span class="sd">:type proj_geom: :class:`dict`</span>
+<span class="sd">:param vol_geom: Volume geometry.</span>
+<span class="sd">:type vol_geom: :class:`dict`</span>
+<span class="sd">:param returnData: If False, only return the ID of the forward projection.</span>
+<span class="sd">:type returnData: :class:`bool`</span>
+<span class="sd">:param gpuIndex: Optional GPU index.</span>
+<span class="sd">:type gpuIndex: :class:`int`</span>
+<span class="sd">:returns: :class:`int` or (:class:`int`, :class:`numpy.ndarray`) -- If ``returnData=False``, returns the ID of the forward projection. Otherwise, returns a tuple containing the ID of the forward projection and the forward projection itself, in that order.</span>
+
+<span class="sd">&quot;&quot;&quot;</span>
+
+    <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">data</span><span class="p">,</span> <span class="n">np</span><span class="o">.</span><span class="n">ndarray</span><span class="p">):</span>
+        <span class="n">volume_id</span> <span class="o">=</span> <span class="n">data3d</span><span class="o">.</span><span class="n">create</span><span class="p">(</span><span class="s">&#39;-vol&#39;</span><span class="p">,</span> <span class="n">vol_geom</span><span class="p">,</span> <span class="n">data</span><span class="p">)</span>
+    <span class="k">else</span><span class="p">:</span>
+        <span class="n">volume_id</span> <span class="o">=</span> <span class="n">data</span>
+    <span class="n">sino_id</span> <span class="o">=</span> <span class="n">data3d</span><span class="o">.</span><span class="n">create</span><span class="p">(</span><span class="s">&#39;-sino&#39;</span><span class="p">,</span> <span class="n">proj_geom</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
+    <span class="n">algString</span> <span class="o">=</span> <span class="s">&#39;FP3D_CUDA&#39;</span>
+    <span class="n">cfg</span> <span class="o">=</span> <span class="n">astra_dict</span><span class="p">(</span><span class="n">algString</span><span class="p">)</span>
+    <span class="k">if</span> <span class="ow">not</span> <span class="n">gpuIndex</span><span class="o">==</span><span class="bp">None</span><span class="p">:</span>
+        <span class="n">cfg</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">]</span><span class="o">=</span><span class="p">{</span><span class="s">&#39;GPUindex&#39;</span><span class="p">:</span><span class="n">gpuIndex</span><span class="p">}</span>
+    <span class="n">cfg</span><span class="p">[</span><span class="s">&#39;ProjectionDataId&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">sino_id</span>
+    <span class="n">cfg</span><span class="p">[</span><span class="s">&#39;VolumeDataId&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">volume_id</span>
+    <span class="n">alg_id</span> <span class="o">=</span> <span class="n">algorithm</span><span class="o">.</span><span class="n">create</span><span class="p">(</span><span class="n">cfg</span><span class="p">)</span>
+    <span class="n">algorithm</span><span class="o">.</span><span class="n">run</span><span class="p">(</span><span class="n">alg_id</span><span class="p">)</span>
+    <span class="n">algorithm</span><span class="o">.</span><span class="n">delete</span><span class="p">(</span><span class="n">alg_id</span><span class="p">)</span>
+
+    <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">data</span><span class="p">,</span> <span class="n">np</span><span class="o">.</span><span class="n">ndarray</span><span class="p">):</span>
+        <span class="n">data3d</span><span class="o">.</span><span class="n">delete</span><span class="p">(</span><span class="n">volume_id</span><span class="p">)</span>
+    <span class="k">if</span> <span class="n">returnData</span><span class="p">:</span>
+        <span class="k">return</span> <span class="n">sino_id</span><span class="p">,</span> <span class="n">data3d</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">sino_id</span><span class="p">)</span>
+    <span class="k">else</span><span class="p">:</span>
+        <span class="k">return</span> <span class="n">sino_id</span>
+
+</div>
+<div class="viewcode-block" id="create_reconstruction"><a class="viewcode-back" href="../../creators.html#astra.creators.create_reconstruction">[docs]</a><span class="k">def</span> <span class="nf">create_reconstruction</span><span class="p">(</span><span class="n">rec_type</span><span class="p">,</span> <span class="n">proj_id</span><span class="p">,</span> <span class="n">sinogram</span><span class="p">,</span> <span class="n">iterations</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">use_mask</span><span class="o">=</span><span class="s">&#39;no&#39;</span><span class="p">,</span> <span class="n">mask</span><span class="o">=</span><span class="n">np</span><span class="o">.</span><span class="n">array</span><span class="p">([]),</span> <span class="n">use_minc</span><span class="o">=</span><span class="s">&#39;no&#39;</span><span class="p">,</span> <span class="n">minc</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">use_maxc</span><span class="o">=</span><span class="s">&#39;no&#39;</span><span class="p">,</span> <span class="n">maxc</span><span class="o">=</span><span class="mi">255</span><span class="p">,</span> <span class="n">returnData</span><span class="o">=</span><span class="bp">True</span><span class="p">,</span> <span class="n">filterType</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">filterData</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Create a reconstruction of a sinogram (2D).</span>
+
+<span class="sd">:param rec_type: Name of the reconstruction algorithm.</span>
+<span class="sd">:type rec_type: :class:`string`</span>
+<span class="sd">:param proj_id: ID of the projector to use.</span>
+<span class="sd">:type proj_id: :class:`int`</span>
+<span class="sd">:param sinogram: Sinogram data or ID.</span>
+<span class="sd">:type sinogram: :class:`numpy.ndarray` or :class:`int`</span>
+<span class="sd">:param iterations: Number of iterations to run.</span>
+<span class="sd">:type iterations: :class:`int`</span>
+<span class="sd">:param use_mask: Whether to use a mask.</span>
+<span class="sd">:type use_mask: ``&#39;yes&#39;`` or ``&#39;no&#39;``</span>
+<span class="sd">:param mask: Mask data or ID</span>
+<span class="sd">:type mask: :class:`numpy.ndarray` or :class:`int`</span>
+<span class="sd">:param use_minc: Whether to force a minimum value on the reconstruction pixels.</span>
+<span class="sd">:type use_minc: ``&#39;yes&#39;`` or ``&#39;no&#39;``</span>
+<span class="sd">:param minc: Minimum value to use.</span>
+<span class="sd">:type minc: :class:`float`</span>
+<span class="sd">:param use_maxc: Whether to force a maximum value on the reconstruction pixels.</span>
+<span class="sd">:type use_maxc: ``&#39;yes&#39;`` or ``&#39;no&#39;``</span>
+<span class="sd">:param maxc: Maximum value to use.</span>
+<span class="sd">:type maxc: :class:`float`</span>
+<span class="sd">:param returnData: If False, only return the ID of the reconstruction.</span>
+<span class="sd">:type returnData: :class:`bool`</span>
+<span class="sd">:param filterType: Which type of filter to use for filter-based methods.</span>
+<span class="sd">:type filterType: :class:`string`</span>
+<span class="sd">:param filterData: Optional filter data for filter-based methods.</span>
+<span class="sd">:type filterData: :class:`numpy.ndarray`</span>
+<span class="sd">:returns: :class:`int` or (:class:`int`, :class:`numpy.ndarray`) -- If ``returnData=False``, returns the ID of the reconstruction. Otherwise, returns a tuple containing the ID of the reconstruction and reconstruction itself, in that order.</span>
+
+<span class="sd">&quot;&quot;&quot;</span>
+    <span class="n">proj_geom</span> <span class="o">=</span> <span class="n">projector</span><span class="o">.</span><span class="n">projection_geometry</span><span class="p">(</span><span class="n">proj_id</span><span class="p">)</span>
+    <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">sinogram</span><span class="p">,</span> <span class="n">np</span><span class="o">.</span><span class="n">ndarray</span><span class="p">):</span>
+        <span class="n">sino_id</span> <span class="o">=</span> <span class="n">data2d</span><span class="o">.</span><span class="n">create</span><span class="p">(</span><span class="s">&#39;-sino&#39;</span><span class="p">,</span> <span class="n">proj_geom</span><span class="p">,</span> <span class="n">sinogram</span><span class="p">)</span>
+    <span class="k">else</span><span class="p">:</span>
+        <span class="n">sino_id</span> <span class="o">=</span> <span class="n">sinogram</span>
+    <span class="n">vol_geom</span> <span class="o">=</span> <span class="n">projector</span><span class="o">.</span><span class="n">volume_geometry</span><span class="p">(</span><span class="n">proj_id</span><span class="p">)</span>
+    <span class="n">recon_id</span> <span class="o">=</span> <span class="n">data2d</span><span class="o">.</span><span class="n">create</span><span class="p">(</span><span class="s">&#39;-vol&#39;</span><span class="p">,</span> <span class="n">vol_geom</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
+    <span class="n">cfg</span> <span class="o">=</span> <span class="n">astra_dict</span><span class="p">(</span><span class="n">rec_type</span><span class="p">)</span>
+    <span class="k">if</span> <span class="ow">not</span> <span class="s">&#39;CUDA&#39;</span> <span class="ow">in</span> <span class="n">rec_type</span><span class="p">:</span>
+        <span class="n">cfg</span><span class="p">[</span><span class="s">&#39;ProjectorId&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">proj_id</span>
+    <span class="n">cfg</span><span class="p">[</span><span class="s">&#39;ProjectionDataId&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">sino_id</span>
+    <span class="n">cfg</span><span class="p">[</span><span class="s">&#39;ReconstructionDataId&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">recon_id</span>
+    <span class="n">cfg</span><span class="p">[</span><span class="s">&#39;options&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="p">{}</span>
+    <span class="k">if</span> <span class="n">use_mask</span> <span class="o">==</span> <span class="s">&#39;yes&#39;</span><span class="p">:</span>
+        <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">mask</span><span class="p">,</span> <span class="n">np</span><span class="o">.</span><span class="n">ndarray</span><span class="p">):</span>
+            <span class="n">mask_id</span> <span class="o">=</span> <span class="n">data2d</span><span class="o">.</span><span class="n">create</span><span class="p">(</span><span class="s">&#39;-vol&#39;</span><span class="p">,</span> <span class="n">vol_geom</span><span class="p">,</span> <span class="n">mask</span><span class="p">)</span>
+        <span class="k">else</span><span class="p">:</span>
+            <span class="n">mask_id</span> <span class="o">=</span> <span class="n">mask</span>
+        <span class="n">cfg</span><span class="p">[</span><span class="s">&#39;options&#39;</span><span class="p">][</span><span class="s">&#39;ReconstructionMaskId&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">mask_id</span>
+    <span class="k">if</span> <span class="ow">not</span> <span class="n">filterType</span> <span class="o">==</span> <span class="bp">None</span><span class="p">:</span>
+        <span class="n">cfg</span><span class="p">[</span><span class="s">&#39;FilterType&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">filterType</span>
+    <span class="k">if</span> <span class="ow">not</span> <span class="n">filterData</span> <span class="o">==</span> <span class="bp">None</span><span class="p">:</span>
+        <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">filterData</span><span class="p">,</span> <span class="n">np</span><span class="o">.</span><span class="n">ndarray</span><span class="p">):</span>
+            <span class="n">nexpow</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span>
+                <span class="nb">pow</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span> <span class="n">math</span><span class="o">.</span><span class="n">ceil</span><span class="p">(</span><span class="n">math</span><span class="o">.</span><span class="n">log</span><span class="p">(</span><span class="mi">2</span> <span class="o">*</span> <span class="n">proj_geom</span><span class="p">[</span><span class="s">&#39;DetectorCount&#39;</span><span class="p">],</span> <span class="mi">2</span><span class="p">))))</span>
+            <span class="n">filtSize</span> <span class="o">=</span> <span class="n">nexpow</span> <span class="o">/</span> <span class="mi">2</span> <span class="o">+</span> <span class="mi">1</span>
+            <span class="n">filt_proj_geom</span> <span class="o">=</span> <span class="n">create_proj_geom</span><span class="p">(</span>
+                <span class="s">&#39;parallel&#39;</span><span class="p">,</span> <span class="mf">1.0</span><span class="p">,</span> <span class="n">filtSize</span><span class="p">,</span> <span class="n">proj_geom</span><span class="p">[</span><span class="s">&#39;ProjectionAngles&#39;</span><span class="p">])</span>
+            <span class="n">filt_id</span> <span class="o">=</span> <span class="n">data2d</span><span class="o">.</span><span class="n">create</span><span class="p">(</span><span class="s">&#39;-sino&#39;</span><span class="p">,</span> <span class="n">filt_proj_geom</span><span class="p">,</span> <span class="n">filterData</span><span class="p">)</span>
+        <span class="k">else</span><span class="p">:</span>
+            <span class="n">filt_id</span> <span class="o">=</span> <span class="n">filterData</span>
+        <span class="n">cfg</span><span class="p">[</span><span class="s">&#39;FilterSinogramId&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">filt_id</span>
+    <span class="n">cfg</span><span class="p">[</span><span class="s">&#39;options&#39;</span><span class="p">][</span><span class="s">&#39;UseMinConstraint&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">use_minc</span>
+    <span class="n">cfg</span><span class="p">[</span><span class="s">&#39;options&#39;</span><span class="p">][</span><span class="s">&#39;MinConstraintValue&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">minc</span>
+    <span class="n">cfg</span><span class="p">[</span><span class="s">&#39;options&#39;</span><span class="p">][</span><span class="s">&#39;UseMaxConstraint&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">use_maxc</span>
+    <span class="n">cfg</span><span class="p">[</span><span class="s">&#39;options&#39;</span><span class="p">][</span><span class="s">&#39;MaxConstraintValue&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">maxc</span>
+    <span class="n">cfg</span><span class="p">[</span><span class="s">&#39;options&#39;</span><span class="p">][</span><span class="s">&#39;ProjectionOrder&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s">&#39;random&#39;</span>
+    <span class="n">alg_id</span> <span class="o">=</span> <span class="n">algorithm</span><span class="o">.</span><span class="n">create</span><span class="p">(</span><span class="n">cfg</span><span class="p">)</span>
+    <span class="n">algorithm</span><span class="o">.</span><span class="n">run</span><span class="p">(</span><span class="n">alg_id</span><span class="p">,</span> <span class="n">iterations</span><span class="p">)</span>
+
+    <span class="n">algorithm</span><span class="o">.</span><span class="n">delete</span><span class="p">(</span><span class="n">alg_id</span><span class="p">)</span>
+
+    <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">sinogram</span><span class="p">,</span> <span class="n">np</span><span class="o">.</span><span class="n">ndarray</span><span class="p">):</span>
+        <span class="n">data2d</span><span class="o">.</span><span class="n">delete</span><span class="p">(</span><span class="n">sino_id</span><span class="p">)</span>
+    <span class="k">if</span> <span class="n">use_mask</span> <span class="o">==</span> <span class="s">&#39;yes&#39;</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">mask</span><span class="p">,</span> <span class="n">np</span><span class="o">.</span><span class="n">ndarray</span><span class="p">):</span>
+        <span class="n">data2d</span><span class="o">.</span><span class="n">delete</span><span class="p">(</span><span class="n">mask_id</span><span class="p">)</span>
+    <span class="k">if</span> <span class="ow">not</span> <span class="n">filterData</span> <span class="o">==</span> <span class="bp">None</span><span class="p">:</span>
+        <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">filterData</span><span class="p">,</span> <span class="n">np</span><span class="o">.</span><span class="n">ndarray</span><span class="p">):</span>
+            <span class="n">data2d</span><span class="o">.</span><span class="n">delete</span><span class="p">(</span><span class="n">filt_id</span><span class="p">)</span>
+    <span class="k">if</span> <span class="n">returnData</span><span class="p">:</span>
+        <span class="k">return</span> <span class="n">recon_id</span><span class="p">,</span> <span class="n">data2d</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">recon_id</span><span class="p">)</span>
+    <span class="k">else</span><span class="p">:</span>
+        <span class="k">return</span> <span class="n">recon_id</span>
+
+</div>
+<div class="viewcode-block" id="create_projector"><a class="viewcode-back" href="../../creators.html#astra.creators.create_projector">[docs]</a><span class="k">def</span> <span class="nf">create_projector</span><span class="p">(</span><span class="n">proj_type</span><span class="p">,</span> <span class="n">proj_geom</span><span class="p">,</span> <span class="n">vol_geom</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Create a 2D projector.</span>
+
+<span class="sd">:param proj_type: Projector type, such as ``&#39;line&#39;``, ``&#39;linear&#39;``, ...</span>
+<span class="sd">:type proj_type: :class:`string`</span>
+<span class="sd">:param proj_geom: Projection geometry.</span>
+<span class="sd">:type proj_geom: :class:`dict`</span>
+<span class="sd">:param vol_geom: Volume geometry.</span>
+<span class="sd">:type vol_geom: :class:`dict`</span>
+<span class="sd">:returns: :class:`int` -- The ID of the projector.</span>
+
+<span class="sd">&quot;&quot;&quot;</span>
+    <span class="k">if</span> <span class="n">proj_type</span> <span class="o">==</span> <span class="s">&#39;blob&#39;</span><span class="p">:</span>
+        <span class="k">raise</span> <span class="ne">Exception</span><span class="p">(</span><span class="s">&#39;Blob type not yet implemented&#39;</span><span class="p">)</span>
+    <span class="n">cfg</span> <span class="o">=</span> <span class="n">astra_dict</span><span class="p">(</span><span class="n">proj_type</span><span class="p">)</span>
+    <span class="n">cfg</span><span class="p">[</span><span class="s">&#39;ProjectionGeometry&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">proj_geom</span>
+    <span class="n">cfg</span><span class="p">[</span><span class="s">&#39;VolumeGeometry&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">vol_geom</span>
+    <span class="k">return</span> <span class="n">projector</span><span class="o">.</span><span class="n">create</span><span class="p">(</span><span class="n">cfg</span><span class="p">)</span></div>
+</pre></div>
+
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+        </div>
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new file mode 100644
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+        <div class="bodywrapper">
+          <div class="body">
+            
+  <h1>Source code for astra.data2d</h1><div class="highlight"><pre>
+<span class="c">#-----------------------------------------------------------------------</span>
+<span class="c">#Copyright 2013 Centrum Wiskunde &amp; Informatica, Amsterdam</span>
+<span class="c">#</span>
+<span class="c">#Author: Daniel M. Pelt</span>
+<span class="c">#Contact: D.M.Pelt@cwi.nl</span>
+<span class="c">#Website: http://dmpelt.github.io/pyastratoolbox/</span>
+<span class="c">#</span>
+<span class="c">#</span>
+<span class="c">#This file is part of the Python interface to the</span>
+<span class="c">#All Scale Tomographic Reconstruction Antwerp Toolbox (&quot;ASTRA Toolbox&quot;).</span>
+<span class="c">#</span>
+<span class="c">#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify</span>
+<span class="c">#it under the terms of the GNU General Public License as published by</span>
+<span class="c">#the Free Software Foundation, either version 3 of the License, or</span>
+<span class="c">#(at your option) any later version.</span>
+<span class="c">#</span>
+<span class="c">#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,</span>
+<span class="c">#but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
+<span class="c">#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
+<span class="c">#GNU General Public License for more details.</span>
+<span class="c">#</span>
+<span class="c">#You should have received a copy of the GNU General Public License</span>
+<span class="c">#along with the Python interface to the ASTRA Toolbox. If not, see &lt;http://www.gnu.org/licenses/&gt;.</span>
+<span class="c">#</span>
+<span class="c">#-----------------------------------------------------------------------</span>
+<span class="kn">from</span> <span class="nn">.</span> <span class="kn">import</span> <span class="n">data2d_c</span> <span class="k">as</span> <span class="n">d</span>
+
+<div class="viewcode-block" id="clear"><a class="viewcode-back" href="../../data2d.html#astra.data2d.clear">[docs]</a><span class="k">def</span> <span class="nf">clear</span><span class="p">():</span>
+    <span class="sd">&quot;&quot;&quot;Clear all 2D data objects.&quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">clear</span><span class="p">()</span>
+</div>
+<div class="viewcode-block" id="delete"><a class="viewcode-back" href="../../data2d.html#astra.data2d.delete">[docs]</a><span class="k">def</span> <span class="nf">delete</span><span class="p">(</span><span class="n">ids</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Delete a 2D object.</span>
+<span class="sd">    </span>
+<span class="sd">    :param ids: ID or list of ID&#39;s to delete.</span>
+<span class="sd">    :type ids: :class:`int` or :class:`list`</span>
+<span class="sd">    </span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">delete</span><span class="p">(</span><span class="n">ids</span><span class="p">)</span>
+</div>
+<div class="viewcode-block" id="create"><a class="viewcode-back" href="../../data2d.html#astra.data2d.create">[docs]</a><span class="k">def</span> <span class="nf">create</span><span class="p">(</span><span class="n">datatype</span><span class="p">,</span> <span class="n">geometry</span><span class="p">,</span> <span class="n">data</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Create a 2D object.</span>
+<span class="sd">        </span>
+<span class="sd">    :param datatype: Data object type, &#39;-vol&#39; or &#39;-sino&#39;.</span>
+<span class="sd">    :type datatype: :class:`string`</span>
+<span class="sd">    :param geometry: Volume or projection geometry.</span>
+<span class="sd">    :type geometry: :class:`dict`</span>
+<span class="sd">    :param data: Data to fill the constructed object with, either a scalar or array.</span>
+<span class="sd">    :type data: :class:`float` or :class:`numpy.ndarray`</span>
+<span class="sd">    :returns: :class:`int` -- the ID of the constructed object.</span>
+<span class="sd">    </span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">create</span><span class="p">(</span><span class="n">datatype</span><span class="p">,</span><span class="n">geometry</span><span class="p">,</span><span class="n">data</span><span class="p">)</span>
+</div>
+<div class="viewcode-block" id="store"><a class="viewcode-back" href="../../data2d.html#astra.data2d.store">[docs]</a><span class="k">def</span> <span class="nf">store</span><span class="p">(</span><span class="n">i</span><span class="p">,</span> <span class="n">data</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Fill existing 2D object with data.</span>
+<span class="sd">    </span>
+<span class="sd">    :param i: ID of object to fill.</span>
+<span class="sd">    :type i: :class:`int`</span>
+<span class="sd">    :param data: Data to fill the object with, either a scalar or array.</span>
+<span class="sd">    :type data: :class:`float` or :class:`numpy.ndarray`</span>
+<span class="sd">    </span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">store</span><span class="p">(</span><span class="n">i</span><span class="p">,</span> <span class="n">data</span><span class="p">)</span>
+    </div>
+<div class="viewcode-block" id="get_geometry"><a class="viewcode-back" href="../../data2d.html#astra.data2d.get_geometry">[docs]</a><span class="k">def</span> <span class="nf">get_geometry</span><span class="p">(</span><span class="n">i</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Get the geometry of a 2D object.</span>
+<span class="sd">    </span>
+<span class="sd">    :param i: ID of object.</span>
+<span class="sd">    :type i: :class:`int`</span>
+<span class="sd">    :returns: :class:`dict` -- The geometry of object with ID ``i``.</span>
+<span class="sd">    </span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">get_geometry</span><span class="p">(</span><span class="n">i</span><span class="p">)</span>
+</div>
+<div class="viewcode-block" id="change_geometry"><a class="viewcode-back" href="../../data2d.html#astra.data2d.change_geometry">[docs]</a><span class="k">def</span> <span class="nf">change_geometry</span><span class="p">(</span><span class="n">i</span><span class="p">,</span> <span class="n">geom</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Change the geometry of a 2D object.</span>
+<span class="sd">    </span>
+<span class="sd">    :param i: ID of object.</span>
+<span class="sd">    :type i: :class:`int`</span>
+<span class="sd">    :param geom: new geometry.</span>
+<span class="sd">    :type geom: :class:`dict`</span>
+<span class="sd">    </span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">change_geometry</span><span class="p">(</span><span class="n">i</span><span class="p">,</span> <span class="n">geom</span><span class="p">)</span>
+    </div>
+<div class="viewcode-block" id="get"><a class="viewcode-back" href="../../data2d.html#astra.data2d.get">[docs]</a><span class="k">def</span> <span class="nf">get</span><span class="p">(</span><span class="n">i</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Get a 2D object.</span>
+<span class="sd">    </span>
+<span class="sd">    :param i: ID of object to get.</span>
+<span class="sd">    :type i: :class:`int`</span>
+<span class="sd">    :returns: :class:`numpy.ndarray` -- The object data.</span>
+<span class="sd">    </span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">i</span><span class="p">)</span>
+</div>
+<div class="viewcode-block" id="get_shared"><a class="viewcode-back" href="../../data2d.html#astra.data2d.get_shared">[docs]</a><span class="k">def</span> <span class="nf">get_shared</span><span class="p">(</span><span class="n">i</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Get a 2D object with memory shared between the ASTRA toolbox and numpy array.</span>
+<span class="sd">    </span>
+<span class="sd">    :param i: ID of object to get.</span>
+<span class="sd">    :type i: :class:`int`</span>
+<span class="sd">    :returns: :class:`numpy.ndarray` -- The object data.</span>
+<span class="sd">    </span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">get_shared</span><span class="p">(</span><span class="n">i</span><span class="p">)</span>
+
+</div>
+<div class="viewcode-block" id="get_single"><a class="viewcode-back" href="../../data2d.html#astra.data2d.get_single">[docs]</a><span class="k">def</span> <span class="nf">get_single</span><span class="p">(</span><span class="n">i</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Get a 2D object in single precision.</span>
+<span class="sd">    </span>
+<span class="sd">    :param i: ID of object to get.</span>
+<span class="sd">    :type i: :class:`int`</span>
+<span class="sd">    :returns: :class:`numpy.ndarray` -- The object data.</span>
+<span class="sd">    </span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">get_single</span><span class="p">(</span><span class="n">i</span><span class="p">)</span>
+</div>
+<div class="viewcode-block" id="info"><a class="viewcode-back" href="../../data2d.html#astra.data2d.info">[docs]</a><span class="k">def</span> <span class="nf">info</span><span class="p">():</span>
+    <span class="sd">&quot;&quot;&quot;Print info on 2D objects in memory.&quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">info</span><span class="p">()</span></div>
+</pre></div>
+
+          </div>
+        </div>
+      </div>
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diff --git a/python/docSRC/_build/html/_modules/astra/data3d.html b/python/docSRC/_build/html/_modules/astra/data3d.html
new file mode 100644
index 0000000..674d6d1
--- /dev/null
+++ b/python/docSRC/_build/html/_modules/astra/data3d.html
@@ -0,0 +1,213 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+
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+  <head>
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+    
+    <title>astra.data3d &mdash; PyASTRAToolbox 1.6 documentation</title>
+    
+    <link rel="stylesheet" href="../../_static/default.css" type="text/css" />
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+      <div class="documentwrapper">
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+            
+  <h1>Source code for astra.data3d</h1><div class="highlight"><pre>
+<span class="c">#-----------------------------------------------------------------------</span>
+<span class="c">#Copyright 2013 Centrum Wiskunde &amp; Informatica, Amsterdam</span>
+<span class="c">#</span>
+<span class="c">#Author: Daniel M. Pelt</span>
+<span class="c">#Contact: D.M.Pelt@cwi.nl</span>
+<span class="c">#Website: http://dmpelt.github.io/pyastratoolbox/</span>
+<span class="c">#</span>
+<span class="c">#</span>
+<span class="c">#This file is part of the Python interface to the</span>
+<span class="c">#All Scale Tomographic Reconstruction Antwerp Toolbox (&quot;ASTRA Toolbox&quot;).</span>
+<span class="c">#</span>
+<span class="c">#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify</span>
+<span class="c">#it under the terms of the GNU General Public License as published by</span>
+<span class="c">#the Free Software Foundation, either version 3 of the License, or</span>
+<span class="c">#(at your option) any later version.</span>
+<span class="c">#</span>
+<span class="c">#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,</span>
+<span class="c">#but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
+<span class="c">#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
+<span class="c">#GNU General Public License for more details.</span>
+<span class="c">#</span>
+<span class="c">#You should have received a copy of the GNU General Public License</span>
+<span class="c">#along with the Python interface to the ASTRA Toolbox. If not, see &lt;http://www.gnu.org/licenses/&gt;.</span>
+<span class="c">#</span>
+<span class="c">#-----------------------------------------------------------------------</span>
+<span class="kn">from</span> <span class="nn">.</span> <span class="kn">import</span> <span class="n">data3d_c</span> <span class="k">as</span> <span class="n">d</span>
+
+<div class="viewcode-block" id="create"><a class="viewcode-back" href="../../data3d.html#astra.data3d.create">[docs]</a><span class="k">def</span> <span class="nf">create</span><span class="p">(</span><span class="n">datatype</span><span class="p">,</span><span class="n">geometry</span><span class="p">,</span><span class="n">data</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Create a 3D object.</span>
+<span class="sd">        </span>
+<span class="sd">    :param datatype: Data object type, &#39;-vol&#39; or &#39;-sino&#39;.</span>
+<span class="sd">    :type datatype: :class:`string`</span>
+<span class="sd">    :param geometry: Volume or projection geometry.</span>
+<span class="sd">    :type geometry: :class:`dict`</span>
+<span class="sd">    :param data: Data to fill the constructed object with, either a scalar or array.</span>
+<span class="sd">    :type data: :class:`float` or :class:`numpy.ndarray`</span>
+<span class="sd">    :returns: :class:`int` -- the ID of the constructed object.</span>
+<span class="sd">    </span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">create</span><span class="p">(</span><span class="n">datatype</span><span class="p">,</span><span class="n">geometry</span><span class="p">,</span><span class="n">data</span><span class="p">)</span>
+</div>
+<div class="viewcode-block" id="get"><a class="viewcode-back" href="../../data3d.html#astra.data3d.get">[docs]</a><span class="k">def</span> <span class="nf">get</span><span class="p">(</span><span class="n">i</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Get a 3D object.</span>
+<span class="sd">    </span>
+<span class="sd">    :param i: ID of object to get.</span>
+<span class="sd">    :type i: :class:`int`</span>
+<span class="sd">    :returns: :class:`numpy.ndarray` -- The object data.</span>
+<span class="sd">    </span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">i</span><span class="p">)</span>
+</div>
+<div class="viewcode-block" id="get_shared"><a class="viewcode-back" href="../../data3d.html#astra.data3d.get_shared">[docs]</a><span class="k">def</span> <span class="nf">get_shared</span><span class="p">(</span><span class="n">i</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Get a 3D object with memory shared between the ASTRA toolbox and numpy array.</span>
+<span class="sd">    </span>
+<span class="sd">    :param i: ID of object to get.</span>
+<span class="sd">    :type i: :class:`int`</span>
+<span class="sd">    :returns: :class:`numpy.ndarray` -- The object data.</span>
+<span class="sd">    </span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">get_shared</span><span class="p">(</span><span class="n">i</span><span class="p">)</span>
+</div>
+<div class="viewcode-block" id="get_single"><a class="viewcode-back" href="../../data3d.html#astra.data3d.get_single">[docs]</a><span class="k">def</span> <span class="nf">get_single</span><span class="p">(</span><span class="n">i</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Get a 3D object in single precision.</span>
+<span class="sd">    </span>
+<span class="sd">    :param i: ID of object to get.</span>
+<span class="sd">    :type i: :class:`int`</span>
+<span class="sd">    :returns: :class:`numpy.ndarray` -- The object data.</span>
+<span class="sd">    </span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">g</span><span class="o">.</span><span class="n">get_single</span><span class="p">(</span><span class="n">i</span><span class="p">)</span>
+</div>
+<div class="viewcode-block" id="store"><a class="viewcode-back" href="../../data3d.html#astra.data3d.store">[docs]</a><span class="k">def</span> <span class="nf">store</span><span class="p">(</span><span class="n">i</span><span class="p">,</span><span class="n">data</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Fill existing 3D object with data.</span>
+<span class="sd">    </span>
+<span class="sd">    :param i: ID of object to fill.</span>
+<span class="sd">    :type i: :class:`int`</span>
+<span class="sd">    :param data: Data to fill the object with, either a scalar or array.</span>
+<span class="sd">    :type data: :class:`float` or :class:`numpy.ndarray`</span>
+<span class="sd">    </span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">store</span><span class="p">(</span><span class="n">i</span><span class="p">,</span><span class="n">data</span><span class="p">)</span>
+</div>
+<div class="viewcode-block" id="dimensions"><a class="viewcode-back" href="../../data3d.html#astra.data3d.dimensions">[docs]</a><span class="k">def</span> <span class="nf">dimensions</span><span class="p">(</span><span class="n">i</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Get dimensions of a 3D object.</span>
+<span class="sd">    </span>
+<span class="sd">    :param i: ID of object.</span>
+<span class="sd">    :type i: :class:`int`</span>
+<span class="sd">    :returns: :class:`tuple` -- dimensions of object with ID ``i``.</span>
+<span class="sd">    </span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">dimensions</span><span class="p">(</span><span class="n">i</span><span class="p">)</span>
+</div>
+<div class="viewcode-block" id="delete"><a class="viewcode-back" href="../../data3d.html#astra.data3d.delete">[docs]</a><span class="k">def</span> <span class="nf">delete</span><span class="p">(</span><span class="n">ids</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Delete a 2D object.</span>
+<span class="sd">    </span>
+<span class="sd">    :param ids: ID or list of ID&#39;s to delete.</span>
+<span class="sd">    :type ids: :class:`int` or :class:`list`</span>
+<span class="sd">    </span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">delete</span><span class="p">(</span><span class="n">ids</span><span class="p">)</span>
+</div>
+<div class="viewcode-block" id="clear"><a class="viewcode-back" href="../../data3d.html#astra.data3d.clear">[docs]</a><span class="k">def</span> <span class="nf">clear</span><span class="p">():</span>
+    <span class="sd">&quot;&quot;&quot;Clear all 3D data objects.&quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">clear</span><span class="p">()</span>
+</div>
+<div class="viewcode-block" id="info"><a class="viewcode-back" href="../../data3d.html#astra.data3d.info">[docs]</a><span class="k">def</span> <span class="nf">info</span><span class="p">():</span>
+    <span class="sd">&quot;&quot;&quot;Print info on 3D objects in memory.&quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">info</span><span class="p">()</span></div>
+</pre></div>
+
+          </div>
+        </div>
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+            
+  <h1>Source code for astra.functions</h1><div class="highlight"><pre>
+<span class="c">#-----------------------------------------------------------------------</span>
+<span class="c"># Copyright 2013 Centrum Wiskunde &amp; Informatica, Amsterdam</span>
+<span class="c">#</span>
+<span class="c"># Author: Daniel M. Pelt</span>
+<span class="c"># Contact: D.M.Pelt@cwi.nl</span>
+<span class="c"># Website: http://dmpelt.github.io/pyastratoolbox/</span>
+<span class="c">#</span>
+<span class="c">#</span>
+<span class="c"># This file is part of the Python interface to the</span>
+<span class="c"># All Scale Tomographic Reconstruction Antwerp Toolbox (&quot;ASTRA Toolbox&quot;).</span>
+<span class="c">#</span>
+<span class="c"># The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify</span>
+<span class="c"># it under the terms of the GNU General Public License as published by</span>
+<span class="c"># the Free Software Foundation, either version 3 of the License, or</span>
+<span class="c">#(at your option) any later version.</span>
+<span class="c">#</span>
+<span class="c"># The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,</span>
+<span class="c"># but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
+<span class="c"># MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
+<span class="c"># GNU General Public License for more details.</span>
+<span class="c">#</span>
+<span class="c"># You should have received a copy of the GNU General Public License</span>
+<span class="c"># along with the Python interface to the ASTRA Toolbox. If not, see &lt;http://www.gnu.org/licenses/&gt;.</span>
+<span class="c">#</span>
+<span class="c">#-----------------------------------------------------------------------</span>
+<span class="sd">&quot;&quot;&quot;Additional functions for PyAstraToolbox.</span>
+
+<span class="sd">.. moduleauthor:: Daniel M. Pelt &lt;D.M.Pelt@cwi.nl&gt;</span>
+
+
+<span class="sd">&quot;&quot;&quot;</span>
+
+<span class="kn">from</span> <span class="nn">.</span> <span class="kn">import</span> <span class="n">creators</span> <span class="k">as</span> <span class="n">ac</span>
+<span class="kn">import</span> <span class="nn">numpy</span> <span class="kn">as</span> <span class="nn">np</span>
+<span class="kn">from</span> <span class="nn">six.moves</span> <span class="kn">import</span> <span class="nb">range</span>
+
+<span class="kn">from</span> <span class="nn">.</span> <span class="kn">import</span> <span class="n">data2d</span>
+<span class="kn">from</span> <span class="nn">.</span> <span class="kn">import</span> <span class="n">data3d</span>
+<span class="kn">from</span> <span class="nn">.</span> <span class="kn">import</span> <span class="n">projector</span>
+<span class="kn">from</span> <span class="nn">.</span> <span class="kn">import</span> <span class="n">algorithm</span>
+
+
+
+<div class="viewcode-block" id="clear"><a class="viewcode-back" href="../../functions.html#astra.functions.clear">[docs]</a><span class="k">def</span> <span class="nf">clear</span><span class="p">():</span>
+    <span class="sd">&quot;&quot;&quot;Clears all used memory of the ASTRA Toolbox.</span>
+
+<span class="sd">    .. note::</span>
+<span class="sd">        This is irreversible.</span>
+
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="n">data2d</span><span class="o">.</span><span class="n">clear</span><span class="p">()</span>
+    <span class="n">data3d</span><span class="o">.</span><span class="n">clear</span><span class="p">()</span>
+    <span class="n">projector</span><span class="o">.</span><span class="n">clear</span><span class="p">()</span>
+    <span class="n">algorithm</span><span class="o">.</span><span class="n">clear</span><span class="p">()</span>
+
+</div>
+<div class="viewcode-block" id="data_op"><a class="viewcode-back" href="../../functions.html#astra.functions.data_op">[docs]</a><span class="k">def</span> <span class="nf">data_op</span><span class="p">(</span><span class="n">op</span><span class="p">,</span> <span class="n">data</span><span class="p">,</span> <span class="n">scalar</span><span class="p">,</span> <span class="n">gpu_core</span><span class="p">,</span> <span class="n">mask</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Perform data operation on data.</span>
+
+<span class="sd">    :param op: Operation to perform.</span>
+<span class="sd">    :param data: Data to perform operation on.</span>
+<span class="sd">    :param scalar: Scalar argument to data operation.</span>
+<span class="sd">    :param gpu_core: GPU core to perform operation on.</span>
+<span class="sd">    :param mask: Optional mask.</span>
+
+<span class="sd">    &quot;&quot;&quot;</span>
+
+    <span class="n">cfg</span> <span class="o">=</span> <span class="n">ac</span><span class="o">.</span><span class="n">astra_dict</span><span class="p">(</span><span class="s">&#39;DataOperation_CUDA&#39;</span><span class="p">)</span>
+    <span class="n">cfg</span><span class="p">[</span><span class="s">&#39;Operation&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">op</span>
+    <span class="n">cfg</span><span class="p">[</span><span class="s">&#39;Scalar&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">scalar</span>
+    <span class="n">cfg</span><span class="p">[</span><span class="s">&#39;DataId&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">data</span>
+    <span class="k">if</span> <span class="ow">not</span> <span class="n">mask</span> <span class="o">==</span> <span class="bp">None</span><span class="p">:</span>
+        <span class="n">cfg</span><span class="p">[</span><span class="s">&#39;MaskId&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">mask</span>
+    <span class="n">cfg</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">][</span><span class="s">&#39;GPUindex&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">gpu_core</span>
+    <span class="n">alg_id</span> <span class="o">=</span> <span class="n">algorithm</span><span class="o">.</span><span class="n">create</span><span class="p">(</span><span class="n">cfg</span><span class="p">)</span>
+    <span class="n">algorithm</span><span class="o">.</span><span class="n">run</span><span class="p">(</span><span class="n">alg_id</span><span class="p">)</span>
+    <span class="n">algorithm</span><span class="o">.</span><span class="n">delete</span><span class="p">(</span><span class="n">alg_id</span><span class="p">)</span>
+
+</div>
+<div class="viewcode-block" id="add_noise_to_sino"><a class="viewcode-back" href="../../functions.html#astra.functions.add_noise_to_sino">[docs]</a><span class="k">def</span> <span class="nf">add_noise_to_sino</span><span class="p">(</span><span class="n">sinogram_in</span><span class="p">,</span> <span class="n">I0</span><span class="p">,</span> <span class="n">seed</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Adds Poisson noise to a sinogram.</span>
+
+<span class="sd">    :param sinogram_in: Sinogram to add noise to.</span>
+<span class="sd">    :type sinogram_in: :class:`numpy.ndarray`</span>
+<span class="sd">    :param I0: Background intensity. Lower values lead to higher noise.</span>
+<span class="sd">    :type I0: :class:`float`</span>
+<span class="sd">    :returns:  :class:`numpy.ndarray` -- the sinogram with added noise.</span>
+
+<span class="sd">    &quot;&quot;&quot;</span>
+
+    <span class="k">if</span> <span class="ow">not</span> <span class="n">seed</span><span class="o">==</span><span class="bp">None</span><span class="p">:</span>
+        <span class="n">curstate</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">random</span><span class="o">.</span><span class="n">get_state</span><span class="p">()</span>
+        <span class="n">np</span><span class="o">.</span><span class="n">random</span><span class="o">.</span><span class="n">seed</span><span class="p">(</span><span class="n">seed</span><span class="p">)</span>
+
+    <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">sinogram_in</span><span class="p">,</span> <span class="n">np</span><span class="o">.</span><span class="n">ndarray</span><span class="p">):</span>
+        <span class="n">sinogramRaw</span> <span class="o">=</span> <span class="n">sinogram_in</span>
+    <span class="k">else</span><span class="p">:</span>
+        <span class="n">sinogramRaw</span> <span class="o">=</span> <span class="n">data2d</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">sinogram_in</span><span class="p">)</span>
+    <span class="n">max_sinogramRaw</span> <span class="o">=</span> <span class="n">sinogramRaw</span><span class="o">.</span><span class="n">max</span><span class="p">()</span>
+    <span class="n">sinogramRawScaled</span> <span class="o">=</span> <span class="n">sinogramRaw</span> <span class="o">/</span> <span class="n">max_sinogramRaw</span>
+    <span class="c"># to detector count</span>
+    <span class="n">sinogramCT</span> <span class="o">=</span> <span class="n">I0</span> <span class="o">*</span> <span class="n">np</span><span class="o">.</span><span class="n">exp</span><span class="p">(</span><span class="o">-</span><span class="n">sinogramRawScaled</span><span class="p">)</span>
+    <span class="c"># add poison noise</span>
+    <span class="n">sinogramCT_C</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">zeros_like</span><span class="p">(</span><span class="n">sinogramCT</span><span class="p">)</span>
+    <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">sinogramCT_C</span><span class="o">.</span><span class="n">shape</span><span class="p">[</span><span class="mi">0</span><span class="p">]):</span>
+        <span class="k">for</span> <span class="n">j</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">sinogramCT_C</span><span class="o">.</span><span class="n">shape</span><span class="p">[</span><span class="mi">1</span><span class="p">]):</span>
+            <span class="n">sinogramCT_C</span><span class="p">[</span><span class="n">i</span><span class="p">,</span> <span class="n">j</span><span class="p">]</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">random</span><span class="o">.</span><span class="n">poisson</span><span class="p">(</span><span class="n">sinogramCT</span><span class="p">[</span><span class="n">i</span><span class="p">,</span> <span class="n">j</span><span class="p">])</span>
+    <span class="c"># to density</span>
+    <span class="n">sinogramCT_D</span> <span class="o">=</span> <span class="n">sinogramCT_C</span> <span class="o">/</span> <span class="n">I0</span>
+    <span class="n">sinogram_out</span> <span class="o">=</span> <span class="o">-</span><span class="n">max_sinogramRaw</span> <span class="o">*</span> <span class="n">np</span><span class="o">.</span><span class="n">log</span><span class="p">(</span><span class="n">sinogramCT_D</span><span class="p">)</span>
+
+    <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">sinogram_in</span><span class="p">,</span> <span class="n">np</span><span class="o">.</span><span class="n">ndarray</span><span class="p">):</span>
+        <span class="n">at</span><span class="o">.</span><span class="n">data2d</span><span class="o">.</span><span class="n">store</span><span class="p">(</span><span class="n">sinogram_in</span><span class="p">,</span> <span class="n">sinogram_out</span><span class="p">)</span>
+
+    <span class="k">if</span> <span class="ow">not</span> <span class="n">seed</span><span class="o">==</span><span class="bp">None</span><span class="p">:</span>
+        <span class="n">np</span><span class="o">.</span><span class="n">random</span><span class="o">.</span><span class="n">set_state</span><span class="p">(</span><span class="n">curstate</span><span class="p">)</span>
+
+    <span class="k">return</span> <span class="n">sinogram_out</span>
+</div>
+<div class="viewcode-block" id="move_vol_geom"><a class="viewcode-back" href="../../functions.html#astra.functions.move_vol_geom">[docs]</a><span class="k">def</span> <span class="nf">move_vol_geom</span><span class="p">(</span><span class="n">geom</span><span class="p">,</span> <span class="n">pos</span><span class="p">,</span> <span class="n">is_relative</span><span class="o">=</span><span class="bp">False</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Moves center of volume geometry to new position.</span>
+
+<span class="sd">    :param geom: Input volume geometry</span>
+<span class="sd">    :type geom: :class:`dict`</span>
+<span class="sd">    :param pos: Tuple (x,y[,z]) for new position, with the center of the image at (0,0[,0])</span>
+<span class="sd">    :type pos: :class:`tuple`</span>
+<span class="sd">    :param is_relative: Whether new position is relative to the old position</span>
+<span class="sd">    :type is_relative: :class:`bool`</span>
+<span class="sd">    :returns: :class:`dict` -- Volume geometry with the new center</span>
+<span class="sd">    &quot;&quot;&quot;</span>
+
+    <span class="n">ret_geom</span> <span class="o">=</span> <span class="n">geom</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span>
+    <span class="n">ret_geom</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">geom</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">]</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span>
+
+    <span class="k">if</span> <span class="ow">not</span> <span class="n">is_relative</span><span class="p">:</span>
+        <span class="n">ret_geom</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">][</span><span class="s">&#39;WindowMinX&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="o">-</span><span class="n">geom</span><span class="p">[</span><span class="s">&#39;GridColCount&#39;</span><span class="p">]</span><span class="o">/</span><span class="mf">2.</span>
+        <span class="n">ret_geom</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">][</span><span class="s">&#39;WindowMaxX&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">geom</span><span class="p">[</span><span class="s">&#39;GridColCount&#39;</span><span class="p">]</span><span class="o">/</span><span class="mf">2.</span>
+        <span class="n">ret_geom</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">][</span><span class="s">&#39;WindowMinY&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="o">-</span><span class="n">geom</span><span class="p">[</span><span class="s">&#39;GridRowCount&#39;</span><span class="p">]</span><span class="o">/</span><span class="mf">2.</span>
+        <span class="n">ret_geom</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">][</span><span class="s">&#39;WindowMaxY&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">geom</span><span class="p">[</span><span class="s">&#39;GridRowCount&#39;</span><span class="p">]</span><span class="o">/</span><span class="mf">2.</span>
+        <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">pos</span><span class="p">)</span><span class="o">&gt;</span><span class="mi">2</span><span class="p">:</span>
+            <span class="n">ret_geom</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">][</span><span class="s">&#39;WindowMinZ&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="o">-</span><span class="n">geom</span><span class="p">[</span><span class="s">&#39;GridSliceCount&#39;</span><span class="p">]</span><span class="o">/</span><span class="mf">2.</span>
+            <span class="n">ret_geom</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">][</span><span class="s">&#39;WindowMaxZ&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">geom</span><span class="p">[</span><span class="s">&#39;GridSliceCount&#39;</span><span class="p">]</span><span class="o">/</span><span class="mf">2.</span>
+    <span class="n">ret_geom</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">][</span><span class="s">&#39;WindowMinX&#39;</span><span class="p">]</span> <span class="o">+=</span> <span class="n">pos</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
+    <span class="n">ret_geom</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">][</span><span class="s">&#39;WindowMaxX&#39;</span><span class="p">]</span> <span class="o">+=</span> <span class="n">pos</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
+    <span class="n">ret_geom</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">][</span><span class="s">&#39;WindowMinY&#39;</span><span class="p">]</span> <span class="o">+=</span> <span class="n">pos</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
+    <span class="n">ret_geom</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">][</span><span class="s">&#39;WindowMaxY&#39;</span><span class="p">]</span> <span class="o">+=</span> <span class="n">pos</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
+    <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">pos</span><span class="p">)</span><span class="o">&gt;</span><span class="mi">2</span><span class="p">:</span>
+        <span class="n">ret_geom</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">][</span><span class="s">&#39;WindowMinZ&#39;</span><span class="p">]</span> <span class="o">+=</span> <span class="n">pos</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span>
+        <span class="n">ret_geom</span><span class="p">[</span><span class="s">&#39;option&#39;</span><span class="p">][</span><span class="s">&#39;WindowMaxZ&#39;</span><span class="p">]</span> <span class="o">+=</span> <span class="n">pos</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span>
+    <span class="k">return</span> <span class="n">ret_geom</span>
+
+</div>
+<div class="viewcode-block" id="geom_size"><a class="viewcode-back" href="../../functions.html#astra.functions.geom_size">[docs]</a><span class="k">def</span> <span class="nf">geom_size</span><span class="p">(</span><span class="n">geom</span><span class="p">,</span> <span class="n">dim</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Returns the size of a volume or sinogram, based on the projection or volume geometry.</span>
+
+<span class="sd">    :param geom: Geometry to calculate size from</span>
+<span class="sd">    :type geometry: :class:`dict`</span>
+<span class="sd">    :param dim: Optional axis index to return</span>
+<span class="sd">    :type dim: :class:`int`</span>
+<span class="sd">    &quot;&quot;&quot;</span>
+
+    <span class="k">if</span> <span class="s">&#39;GridSliceCount&#39;</span> <span class="ow">in</span> <span class="n">geom</span><span class="p">:</span>
+        <span class="c"># 3D Volume geometry?</span>
+        <span class="n">s</span> <span class="o">=</span> <span class="p">(</span><span class="n">geom</span><span class="p">[</span><span class="s">&#39;GridSliceCount&#39;</span><span class="p">],</span> <span class="n">geom</span><span class="p">[</span>
+             <span class="s">&#39;GridRowCount&#39;</span><span class="p">],</span> <span class="n">geom</span><span class="p">[</span><span class="s">&#39;GridColCount&#39;</span><span class="p">])</span>
+    <span class="k">elif</span> <span class="s">&#39;GridColCount&#39;</span> <span class="ow">in</span> <span class="n">geom</span><span class="p">:</span>
+        <span class="c"># 2D Volume geometry?</span>
+        <span class="n">s</span> <span class="o">=</span> <span class="p">(</span><span class="n">geom</span><span class="p">[</span><span class="s">&#39;GridRowCount&#39;</span><span class="p">],</span> <span class="n">geom</span><span class="p">[</span><span class="s">&#39;GridColCount&#39;</span><span class="p">])</span>
+    <span class="k">elif</span> <span class="n">geom</span><span class="p">[</span><span class="s">&#39;type&#39;</span><span class="p">]</span> <span class="o">==</span> <span class="s">&#39;parallel&#39;</span> <span class="ow">or</span> <span class="n">geom</span><span class="p">[</span><span class="s">&#39;type&#39;</span><span class="p">]</span> <span class="o">==</span> <span class="s">&#39;fanflat&#39;</span><span class="p">:</span>
+        <span class="n">s</span> <span class="o">=</span> <span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">geom</span><span class="p">[</span><span class="s">&#39;ProjectionAngles&#39;</span><span class="p">]),</span> <span class="n">geom</span><span class="p">[</span><span class="s">&#39;DetectorCount&#39;</span><span class="p">])</span>
+    <span class="k">elif</span> <span class="n">geom</span><span class="p">[</span><span class="s">&#39;type&#39;</span><span class="p">]</span> <span class="o">==</span> <span class="s">&#39;parallel3d&#39;</span> <span class="ow">or</span> <span class="n">geom</span><span class="p">[</span><span class="s">&#39;type&#39;</span><span class="p">]</span> <span class="o">==</span> <span class="s">&#39;cone&#39;</span><span class="p">:</span>
+        <span class="n">s</span> <span class="o">=</span> <span class="p">(</span><span class="n">geom</span><span class="p">[</span><span class="s">&#39;DetectorRowCount&#39;</span><span class="p">],</span> <span class="nb">len</span><span class="p">(</span>
+            <span class="n">geom</span><span class="p">[</span><span class="s">&#39;ProjectionAngles&#39;</span><span class="p">]),</span> <span class="n">geom</span><span class="p">[</span><span class="s">&#39;DetectorColCount&#39;</span><span class="p">])</span>
+    <span class="k">elif</span> <span class="n">geom</span><span class="p">[</span><span class="s">&#39;type&#39;</span><span class="p">]</span> <span class="o">==</span> <span class="s">&#39;fanflat_vec&#39;</span><span class="p">:</span>
+        <span class="n">s</span> <span class="o">=</span> <span class="p">(</span><span class="n">geom</span><span class="p">[</span><span class="s">&#39;Vectors&#39;</span><span class="p">]</span><span class="o">.</span><span class="n">shape</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">geom</span><span class="p">[</span><span class="s">&#39;DetectorCount&#39;</span><span class="p">])</span>
+    <span class="k">elif</span> <span class="n">geom</span><span class="p">[</span><span class="s">&#39;type&#39;</span><span class="p">]</span> <span class="o">==</span> <span class="s">&#39;parallel3d_vec&#39;</span> <span class="ow">or</span> <span class="n">geom</span><span class="p">[</span><span class="s">&#39;type&#39;</span><span class="p">]</span> <span class="o">==</span> <span class="s">&#39;cone_vec&#39;</span><span class="p">:</span>
+        <span class="n">s</span> <span class="o">=</span> <span class="p">(</span><span class="n">geom</span><span class="p">[</span><span class="s">&#39;DetectorRowCount&#39;</span><span class="p">],</span> <span class="n">geom</span><span class="p">[</span>
+             <span class="s">&#39;Vectors&#39;</span><span class="p">]</span><span class="o">.</span><span class="n">shape</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">geom</span><span class="p">[</span><span class="s">&#39;DetectorColCount&#39;</span><span class="p">])</span>
+
+    <span class="k">if</span> <span class="n">dim</span> <span class="o">!=</span> <span class="bp">None</span><span class="p">:</span>
+        <span class="n">s</span> <span class="o">=</span> <span class="n">s</span><span class="p">[</span><span class="n">dim</span><span class="p">]</span>
+
+    <span class="k">return</span> <span class="n">s</span>
+
+</div>
+<div class="viewcode-block" id="geom_2vec"><a class="viewcode-back" href="../../functions.html#astra.functions.geom_2vec">[docs]</a><span class="k">def</span> <span class="nf">geom_2vec</span><span class="p">(</span><span class="n">proj_geom</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Returns a vector-based projection geometry from a basic projection geometry.</span>
+
+<span class="sd">    :param proj_geom: Projection geometry to convert</span>
+<span class="sd">    :type proj_geom: :class:`dict`</span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">if</span> <span class="n">proj_geom</span><span class="p">[</span><span class="s">&#39;type&#39;</span><span class="p">]</span> <span class="o">==</span> <span class="s">&#39;fanflat&#39;</span><span class="p">:</span>
+        <span class="n">angles</span> <span class="o">=</span> <span class="n">proj_geom</span><span class="p">[</span><span class="s">&#39;ProjectionAngles&#39;</span><span class="p">]</span>
+        <span class="n">vectors</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">zeros</span><span class="p">((</span><span class="nb">len</span><span class="p">(</span><span class="n">angles</span><span class="p">),</span> <span class="mi">6</span><span class="p">))</span>
+        <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">angles</span><span class="p">)):</span>
+
+            <span class="c"># source</span>
+            <span class="n">vectors</span><span class="p">[</span><span class="n">i</span><span class="p">,</span> <span class="mi">0</span><span class="p">]</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">sin</span><span class="p">(</span><span class="n">angles</span><span class="p">[</span><span class="n">i</span><span class="p">])</span> <span class="o">*</span> <span class="n">proj_geom</span><span class="p">[</span><span class="s">&#39;DistanceOriginSource&#39;</span><span class="p">]</span>
+            <span class="n">vectors</span><span class="p">[</span><span class="n">i</span><span class="p">,</span> <span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="o">-</span><span class="n">np</span><span class="o">.</span><span class="n">cos</span><span class="p">(</span><span class="n">angles</span><span class="p">[</span><span class="n">i</span><span class="p">])</span> <span class="o">*</span> <span class="n">proj_geom</span><span class="p">[</span><span class="s">&#39;DistanceOriginSource&#39;</span><span class="p">]</span>
+
+            <span class="c"># center of detector</span>
+            <span class="n">vectors</span><span class="p">[</span><span class="n">i</span><span class="p">,</span> <span class="mi">2</span><span class="p">]</span> <span class="o">=</span> <span class="o">-</span><span class="n">np</span><span class="o">.</span><span class="n">sin</span><span class="p">(</span><span class="n">angles</span><span class="p">[</span><span class="n">i</span><span class="p">])</span> <span class="o">*</span> <span class="n">proj_geom</span><span class="p">[</span><span class="s">&#39;DistanceOriginDetector&#39;</span><span class="p">]</span>
+            <span class="n">vectors</span><span class="p">[</span><span class="n">i</span><span class="p">,</span> <span class="mi">3</span><span class="p">]</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">cos</span><span class="p">(</span><span class="n">angles</span><span class="p">[</span><span class="n">i</span><span class="p">])</span> <span class="o">*</span> <span class="n">proj_geom</span><span class="p">[</span><span class="s">&#39;DistanceOriginDetector&#39;</span><span class="p">]</span>
+
+            <span class="c"># vector from detector pixel 0 to 1</span>
+            <span class="n">vectors</span><span class="p">[</span><span class="n">i</span><span class="p">,</span> <span class="mi">4</span><span class="p">]</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">cos</span><span class="p">(</span><span class="n">angles</span><span class="p">[</span><span class="n">i</span><span class="p">])</span> <span class="o">*</span> <span class="n">proj_geom</span><span class="p">[</span><span class="s">&#39;DetectorWidth&#39;</span><span class="p">]</span>
+            <span class="n">vectors</span><span class="p">[</span><span class="n">i</span><span class="p">,</span> <span class="mi">5</span><span class="p">]</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">sin</span><span class="p">(</span><span class="n">angles</span><span class="p">[</span><span class="n">i</span><span class="p">])</span> <span class="o">*</span> <span class="n">proj_geom</span><span class="p">[</span><span class="s">&#39;DetectorWidth&#39;</span><span class="p">]</span>
+        <span class="n">proj_geom_out</span> <span class="o">=</span> <span class="n">ac</span><span class="o">.</span><span class="n">create_proj_geom</span><span class="p">(</span>
+        <span class="s">&#39;fanflat_vec&#39;</span><span class="p">,</span> <span class="n">proj_geom</span><span class="p">[</span><span class="s">&#39;DetectorCount&#39;</span><span class="p">],</span> <span class="n">vectors</span><span class="p">)</span>
+
+    <span class="k">elif</span> <span class="n">proj_geom</span><span class="p">[</span><span class="s">&#39;type&#39;</span><span class="p">]</span> <span class="o">==</span> <span class="s">&#39;cone&#39;</span><span class="p">:</span>
+        <span class="n">angles</span> <span class="o">=</span> <span class="n">proj_geom</span><span class="p">[</span><span class="s">&#39;ProjectionAngles&#39;</span><span class="p">]</span>
+        <span class="n">vectors</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">zeros</span><span class="p">((</span><span class="nb">len</span><span class="p">(</span><span class="n">angles</span><span class="p">),</span> <span class="mi">12</span><span class="p">))</span>
+        <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">angles</span><span class="p">)):</span>
+            <span class="c"># source</span>
+            <span class="n">vectors</span><span class="p">[</span><span class="n">i</span><span class="p">,</span> <span class="mi">0</span><span class="p">]</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">sin</span><span class="p">(</span><span class="n">angles</span><span class="p">[</span><span class="n">i</span><span class="p">])</span> <span class="o">*</span> <span class="n">proj_geom</span><span class="p">[</span><span class="s">&#39;DistanceOriginSource&#39;</span><span class="p">]</span>
+            <span class="n">vectors</span><span class="p">[</span><span class="n">i</span><span class="p">,</span> <span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="o">-</span><span class="n">np</span><span class="o">.</span><span class="n">cos</span><span class="p">(</span><span class="n">angles</span><span class="p">[</span><span class="n">i</span><span class="p">])</span> <span class="o">*</span> <span class="n">proj_geom</span><span class="p">[</span><span class="s">&#39;DistanceOriginSource&#39;</span><span class="p">]</span>
+            <span class="n">vectors</span><span class="p">[</span><span class="n">i</span><span class="p">,</span> <span class="mi">2</span><span class="p">]</span> <span class="o">=</span> <span class="mi">0</span>
+
+            <span class="c"># center of detector</span>
+            <span class="n">vectors</span><span class="p">[</span><span class="n">i</span><span class="p">,</span> <span class="mi">3</span><span class="p">]</span> <span class="o">=</span> <span class="o">-</span><span class="n">np</span><span class="o">.</span><span class="n">sin</span><span class="p">(</span><span class="n">angles</span><span class="p">[</span><span class="n">i</span><span class="p">])</span> <span class="o">*</span> <span class="n">proj_geom</span><span class="p">[</span><span class="s">&#39;DistanceOriginDetector&#39;</span><span class="p">]</span>
+            <span class="n">vectors</span><span class="p">[</span><span class="n">i</span><span class="p">,</span> <span class="mi">4</span><span class="p">]</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">cos</span><span class="p">(</span><span class="n">angles</span><span class="p">[</span><span class="n">i</span><span class="p">])</span> <span class="o">*</span> <span class="n">proj_geom</span><span class="p">[</span><span class="s">&#39;DistanceOriginDetector&#39;</span><span class="p">]</span>
+            <span class="n">vectors</span><span class="p">[</span><span class="n">i</span><span class="p">,</span> <span class="mi">5</span><span class="p">]</span> <span class="o">=</span> <span class="mi">0</span>
+
+            <span class="c"># vector from detector pixel (0,0) to (0,1)</span>
+            <span class="n">vectors</span><span class="p">[</span><span class="n">i</span><span class="p">,</span> <span class="mi">6</span><span class="p">]</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">cos</span><span class="p">(</span><span class="n">angles</span><span class="p">[</span><span class="n">i</span><span class="p">])</span> <span class="o">*</span> <span class="n">proj_geom</span><span class="p">[</span><span class="s">&#39;DetectorSpacingX&#39;</span><span class="p">]</span>
+            <span class="n">vectors</span><span class="p">[</span><span class="n">i</span><span class="p">,</span> <span class="mi">7</span><span class="p">]</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">sin</span><span class="p">(</span><span class="n">angles</span><span class="p">[</span><span class="n">i</span><span class="p">])</span> <span class="o">*</span> <span class="n">proj_geom</span><span class="p">[</span><span class="s">&#39;DetectorSpacingX&#39;</span><span class="p">]</span>
+            <span class="n">vectors</span><span class="p">[</span><span class="n">i</span><span class="p">,</span> <span class="mi">8</span><span class="p">]</span> <span class="o">=</span> <span class="mi">0</span>
+
+            <span class="c"># vector from detector pixel (0,0) to (1,0)</span>
+            <span class="n">vectors</span><span class="p">[</span><span class="n">i</span><span class="p">,</span> <span class="mi">9</span><span class="p">]</span> <span class="o">=</span> <span class="mi">0</span>
+            <span class="n">vectors</span><span class="p">[</span><span class="n">i</span><span class="p">,</span> <span class="mi">10</span><span class="p">]</span> <span class="o">=</span> <span class="mi">0</span>
+            <span class="n">vectors</span><span class="p">[</span><span class="n">i</span><span class="p">,</span> <span class="mi">11</span><span class="p">]</span> <span class="o">=</span> <span class="n">proj_geom</span><span class="p">[</span><span class="s">&#39;DetectorSpacingY&#39;</span><span class="p">]</span>
+
+        <span class="n">proj_geom_out</span> <span class="o">=</span> <span class="n">ac</span><span class="o">.</span><span class="n">create_proj_geom</span><span class="p">(</span>
+        <span class="s">&#39;cone_vec&#39;</span><span class="p">,</span> <span class="n">proj_geom</span><span class="p">[</span><span class="s">&#39;DetectorRowCount&#39;</span><span class="p">],</span> <span class="n">proj_geom</span><span class="p">[</span><span class="s">&#39;DetectorColCount&#39;</span><span class="p">],</span> <span class="n">vectors</span><span class="p">)</span>
+
+    <span class="c"># PARALLEL</span>
+    <span class="k">elif</span> <span class="n">proj_geom</span><span class="p">[</span><span class="s">&#39;type&#39;</span><span class="p">]</span> <span class="o">==</span> <span class="s">&#39;parallel3d&#39;</span><span class="p">:</span>
+        <span class="n">angles</span> <span class="o">=</span> <span class="n">proj_geom</span><span class="p">[</span><span class="s">&#39;ProjectionAngles&#39;</span><span class="p">]</span>
+        <span class="n">vectors</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">zeros</span><span class="p">((</span><span class="nb">len</span><span class="p">(</span><span class="n">angles</span><span class="p">),</span> <span class="mi">12</span><span class="p">))</span>
+        <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">angles</span><span class="p">)):</span>
+
+            <span class="c"># ray direction</span>
+            <span class="n">vectors</span><span class="p">[</span><span class="n">i</span><span class="p">,</span> <span class="mi">0</span><span class="p">]</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">sin</span><span class="p">(</span><span class="n">angles</span><span class="p">[</span><span class="n">i</span><span class="p">])</span>
+            <span class="n">vectors</span><span class="p">[</span><span class="n">i</span><span class="p">,</span> <span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="o">-</span><span class="n">np</span><span class="o">.</span><span class="n">cos</span><span class="p">(</span><span class="n">angles</span><span class="p">[</span><span class="n">i</span><span class="p">])</span>
+            <span class="n">vectors</span><span class="p">[</span><span class="n">i</span><span class="p">,</span> <span class="mi">2</span><span class="p">]</span> <span class="o">=</span> <span class="mi">0</span>
+
+            <span class="c"># center of detector</span>
+            <span class="n">vectors</span><span class="p">[</span><span class="n">i</span><span class="p">,</span> <span class="mi">3</span><span class="p">]</span> <span class="o">=</span> <span class="mi">0</span>
+            <span class="n">vectors</span><span class="p">[</span><span class="n">i</span><span class="p">,</span> <span class="mi">4</span><span class="p">]</span> <span class="o">=</span> <span class="mi">0</span>
+            <span class="n">vectors</span><span class="p">[</span><span class="n">i</span><span class="p">,</span> <span class="mi">5</span><span class="p">]</span> <span class="o">=</span> <span class="mi">0</span>
+
+            <span class="c"># vector from detector pixel (0,0) to (0,1)</span>
+            <span class="n">vectors</span><span class="p">[</span><span class="n">i</span><span class="p">,</span> <span class="mi">6</span><span class="p">]</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">cos</span><span class="p">(</span><span class="n">angles</span><span class="p">[</span><span class="n">i</span><span class="p">])</span> <span class="o">*</span> <span class="n">proj_geom</span><span class="p">[</span><span class="s">&#39;DetectorSpacingX&#39;</span><span class="p">]</span>
+            <span class="n">vectors</span><span class="p">[</span><span class="n">i</span><span class="p">,</span> <span class="mi">7</span><span class="p">]</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">sin</span><span class="p">(</span><span class="n">angles</span><span class="p">[</span><span class="n">i</span><span class="p">])</span> <span class="o">*</span> <span class="n">proj_geom</span><span class="p">[</span><span class="s">&#39;DetectorSpacingX&#39;</span><span class="p">]</span>
+            <span class="n">vectors</span><span class="p">[</span><span class="n">i</span><span class="p">,</span> <span class="mi">8</span><span class="p">]</span> <span class="o">=</span> <span class="mi">0</span>
+
+            <span class="c"># vector from detector pixel (0,0) to (1,0)</span>
+            <span class="n">vectors</span><span class="p">[</span><span class="n">i</span><span class="p">,</span> <span class="mi">9</span><span class="p">]</span> <span class="o">=</span> <span class="mi">0</span>
+            <span class="n">vectors</span><span class="p">[</span><span class="n">i</span><span class="p">,</span> <span class="mi">10</span><span class="p">]</span> <span class="o">=</span> <span class="mi">0</span>
+            <span class="n">vectors</span><span class="p">[</span><span class="n">i</span><span class="p">,</span> <span class="mi">11</span><span class="p">]</span> <span class="o">=</span> <span class="n">proj_geom</span><span class="p">[</span><span class="s">&#39;DetectorSpacingY&#39;</span><span class="p">]</span>
+
+        <span class="n">proj_geom_out</span> <span class="o">=</span> <span class="n">ac</span><span class="o">.</span><span class="n">create_proj_geom</span><span class="p">(</span>
+        <span class="s">&#39;parallel3d_vec&#39;</span><span class="p">,</span> <span class="n">proj_geom</span><span class="p">[</span><span class="s">&#39;DetectorRowCount&#39;</span><span class="p">],</span> <span class="n">proj_geom</span><span class="p">[</span><span class="s">&#39;DetectorColCount&#39;</span><span class="p">],</span> <span class="n">vectors</span><span class="p">)</span>
+
+    <span class="k">else</span><span class="p">:</span>
+        <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span>
+        <span class="s">&#39;No suitable vector geometry found for type: &#39;</span> <span class="o">+</span> <span class="n">proj_geom</span><span class="p">[</span><span class="s">&#39;type&#39;</span><span class="p">])</span>
+    <span class="k">return</span> <span class="n">proj_geom_out</span></div>
+</pre></div>
+
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+            
+  <h1>Source code for astra.matlab</h1><div class="highlight"><pre>
+<span class="c">#-----------------------------------------------------------------------</span>
+<span class="c">#Copyright 2013 Centrum Wiskunde &amp; Informatica, Amsterdam</span>
+<span class="c">#</span>
+<span class="c">#Author: Daniel M. Pelt</span>
+<span class="c">#Contact: D.M.Pelt@cwi.nl</span>
+<span class="c">#Website: http://dmpelt.github.io/pyastratoolbox/</span>
+<span class="c">#</span>
+<span class="c">#</span>
+<span class="c">#This file is part of the Python interface to the</span>
+<span class="c">#All Scale Tomographic Reconstruction Antwerp Toolbox (&quot;ASTRA Toolbox&quot;).</span>
+<span class="c">#</span>
+<span class="c">#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify</span>
+<span class="c">#it under the terms of the GNU General Public License as published by</span>
+<span class="c">#the Free Software Foundation, either version 3 of the License, or</span>
+<span class="c">#(at your option) any later version.</span>
+<span class="c">#</span>
+<span class="c">#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,</span>
+<span class="c">#but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
+<span class="c">#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
+<span class="c">#GNU General Public License for more details.</span>
+<span class="c">#</span>
+<span class="c">#You should have received a copy of the GNU General Public License</span>
+<span class="c">#along with the Python interface to the ASTRA Toolbox. If not, see &lt;http://www.gnu.org/licenses/&gt;.</span>
+<span class="c">#</span>
+<span class="c">#-----------------------------------------------------------------------</span>
+<span class="sd">&quot;&quot;&quot;This module implements a MATLAB-like interface to the ASTRA Toolbox.</span>
+
+<span class="sd">Note that all functions are called with a :class:`string` as the first</span>
+<span class="sd">argument, specifying the operation to perform. This un-pythonic way</span>
+<span class="sd">is used to make transitioning from MATLAB code to Python code easier, as</span>
+<span class="sd">the MATLAB interface uses the same type of method calling.</span>
+
+<span class="sd">After an initial ``import astra``, these functions can be accessed in the</span>
+<span class="sd">``astra.m`` module.</span>
+
+<span class="sd">&quot;&quot;&quot;</span>
+
+<span class="kn">from</span> <span class="nn">.</span> <span class="kn">import</span> <span class="n">astra_c</span>
+<span class="kn">from</span> <span class="nn">.</span> <span class="kn">import</span> <span class="n">data2d_c</span>
+<span class="kn">from</span> <span class="nn">.</span> <span class="kn">import</span> <span class="n">data3d_c</span>
+<span class="kn">from</span> <span class="nn">.</span> <span class="kn">import</span> <span class="n">projector_c</span>
+<span class="kn">from</span> <span class="nn">.</span> <span class="kn">import</span> <span class="n">algorithm_c</span>
+<span class="kn">from</span> <span class="nn">.</span> <span class="kn">import</span> <span class="n">matrix_c</span>
+<span class="kn">import</span> <span class="nn">numpy</span> <span class="kn">as</span> <span class="nn">np</span>
+
+
+<div class="viewcode-block" id="astra"><a class="viewcode-back" href="../../matlab.html#astra.matlab.astra">[docs]</a><span class="k">def</span> <span class="nf">astra</span><span class="p">(</span><span class="n">command</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;MATLAB-like interface to the :mod:`astra.astra` module</span>
+<span class="sd">    </span>
+<span class="sd">    For example:</span>
+<span class="sd">    </span>
+<span class="sd">    ``astra.m.astra(&#39;use_cuda&#39;)`` -- Check if CUDA is enabled.</span>
+<span class="sd">    </span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="nb">getattr</span><span class="p">(</span><span class="n">astra_c</span><span class="p">,</span> <span class="n">command</span><span class="p">)(</span><span class="o">*</span><span class="n">args</span><span class="p">)</span>
+
+</div>
+<div class="viewcode-block" id="data2d"><a class="viewcode-back" href="../../matlab.html#astra.matlab.data2d">[docs]</a><span class="k">def</span> <span class="nf">data2d</span><span class="p">(</span><span class="n">command</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;MATLAB-like interface to the :mod:`astra.data2d` module</span>
+<span class="sd">    </span>
+<span class="sd">    For example:</span>
+<span class="sd">    </span>
+<span class="sd">    ``astra.m.data2d(&#39;create&#39;,type,geometry,data)`` -- Create a 2D object.</span>
+<span class="sd">    </span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="nb">getattr</span><span class="p">(</span><span class="n">data2d_c</span><span class="p">,</span> <span class="n">command</span><span class="p">)(</span><span class="o">*</span><span class="n">args</span><span class="p">)</span>
+
+</div>
+<div class="viewcode-block" id="data3d"><a class="viewcode-back" href="../../matlab.html#astra.matlab.data3d">[docs]</a><span class="k">def</span> <span class="nf">data3d</span><span class="p">(</span><span class="n">command</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;MATLAB-like interface to the :mod:`astra.data3d` module</span>
+<span class="sd">    </span>
+<span class="sd">    For example:</span>
+<span class="sd">    </span>
+<span class="sd">    ``astra.m.data3d(&#39;get&#39;,i)`` -- Get 3D object data.</span>
+<span class="sd">    </span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="nb">getattr</span><span class="p">(</span><span class="n">data3d_c</span><span class="p">,</span> <span class="n">command</span><span class="p">)(</span><span class="o">*</span><span class="n">args</span><span class="p">)</span>
+
+</div>
+<div class="viewcode-block" id="projector"><a class="viewcode-back" href="../../matlab.html#astra.matlab.projector">[docs]</a><span class="k">def</span> <span class="nf">projector</span><span class="p">(</span><span class="n">command</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;MATLAB-like interface to the :mod:`astra.projector` module</span>
+<span class="sd">    </span>
+<span class="sd">    For example:</span>
+<span class="sd">    </span>
+<span class="sd">    ``astra.m.projector(&#39;volume_geometry&#39;,i)`` -- Get volume geometry.</span>
+<span class="sd">    </span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="nb">getattr</span><span class="p">(</span><span class="n">projector_c</span><span class="p">,</span> <span class="n">command</span><span class="p">)(</span><span class="o">*</span><span class="n">args</span><span class="p">)</span>
+
+</div>
+<div class="viewcode-block" id="matrix"><a class="viewcode-back" href="../../matlab.html#astra.matlab.matrix">[docs]</a><span class="k">def</span> <span class="nf">matrix</span><span class="p">(</span><span class="n">command</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;MATLAB-like interface to the :mod:`astra.matrix` module</span>
+<span class="sd">    </span>
+<span class="sd">    For example:</span>
+<span class="sd">    </span>
+<span class="sd">    ``astra.m.matrix(&#39;delete&#39;,i)`` -- Delete a matrix.</span>
+<span class="sd">    </span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="nb">getattr</span><span class="p">(</span><span class="n">matrix_c</span><span class="p">,</span> <span class="n">command</span><span class="p">)(</span><span class="o">*</span><span class="n">args</span><span class="p">)</span>
+
+</div>
+<div class="viewcode-block" id="algorithm"><a class="viewcode-back" href="../../matlab.html#astra.matlab.algorithm">[docs]</a><span class="k">def</span> <span class="nf">algorithm</span><span class="p">(</span><span class="n">command</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;MATLAB-like interface to the :mod:`astra.algorithm` module</span>
+<span class="sd">    </span>
+<span class="sd">    For example:</span>
+<span class="sd">    </span>
+<span class="sd">    ``astra.m.algorithm(&#39;run&#39;,i,1000)`` -- Run an algorithm with 1000 iterations.</span>
+<span class="sd">    </span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">if</span> <span class="n">command</span> <span class="o">==</span> <span class="s">&#39;iterate&#39;</span><span class="p">:</span>
+        <span class="n">command</span> <span class="o">=</span> <span class="s">&#39;run&#39;</span>
+    <span class="k">return</span> <span class="nb">getattr</span><span class="p">(</span><span class="n">algorithm_c</span><span class="p">,</span> <span class="n">command</span><span class="p">)(</span><span class="o">*</span><span class="n">args</span><span class="p">)</span></div>
+</pre></div>
+
+          </div>
+        </div>
+      </div>
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+<div id="searchbox" style="display: none">
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+    Enter search terms or a module, class or function name.
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+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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+    <title>astra.matrix &mdash; PyASTRAToolbox 1.6 documentation</title>
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+          <li><a href="../index.html" accesskey="U">Module code</a> &raquo;</li> 
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+    <div class="document">
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+        <div class="bodywrapper">
+          <div class="body">
+            
+  <h1>Source code for astra.matrix</h1><div class="highlight"><pre>
+<span class="c">#-----------------------------------------------------------------------</span>
+<span class="c">#Copyright 2013 Centrum Wiskunde &amp; Informatica, Amsterdam</span>
+<span class="c">#</span>
+<span class="c">#Author: Daniel M. Pelt</span>
+<span class="c">#Contact: D.M.Pelt@cwi.nl</span>
+<span class="c">#Website: http://dmpelt.github.io/pyastratoolbox/</span>
+<span class="c">#</span>
+<span class="c">#</span>
+<span class="c">#This file is part of the Python interface to the</span>
+<span class="c">#All Scale Tomographic Reconstruction Antwerp Toolbox (&quot;ASTRA Toolbox&quot;).</span>
+<span class="c">#</span>
+<span class="c">#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify</span>
+<span class="c">#it under the terms of the GNU General Public License as published by</span>
+<span class="c">#the Free Software Foundation, either version 3 of the License, or</span>
+<span class="c">#(at your option) any later version.</span>
+<span class="c">#</span>
+<span class="c">#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,</span>
+<span class="c">#but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
+<span class="c">#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
+<span class="c">#GNU General Public License for more details.</span>
+<span class="c">#</span>
+<span class="c">#You should have received a copy of the GNU General Public License</span>
+<span class="c">#along with the Python interface to the ASTRA Toolbox. If not, see &lt;http://www.gnu.org/licenses/&gt;.</span>
+<span class="c">#</span>
+<span class="c">#-----------------------------------------------------------------------</span>
+<span class="kn">from</span> <span class="nn">.</span> <span class="kn">import</span> <span class="n">matrix_c</span> <span class="k">as</span> <span class="n">m</span>
+
+<div class="viewcode-block" id="delete"><a class="viewcode-back" href="../../matrix.html#astra.matrix.delete">[docs]</a><span class="k">def</span> <span class="nf">delete</span><span class="p">(</span><span class="n">ids</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Delete a matrix object.</span>
+<span class="sd">    </span>
+<span class="sd">    :param ids: ID or list of ID&#39;s to delete.</span>
+<span class="sd">    :type ids: :class:`int` or :class:`list`</span>
+<span class="sd">    </span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">m</span><span class="o">.</span><span class="n">delete</span><span class="p">(</span><span class="n">ids</span><span class="p">)</span>
+</div>
+<div class="viewcode-block" id="clear"><a class="viewcode-back" href="../../matrix.html#astra.matrix.clear">[docs]</a><span class="k">def</span> <span class="nf">clear</span><span class="p">():</span>
+    <span class="sd">&quot;&quot;&quot;Clear all matrix objects.&quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">m</span><span class="o">.</span><span class="n">clear</span><span class="p">()</span>
+</div>
+<div class="viewcode-block" id="create"><a class="viewcode-back" href="../../matrix.html#astra.matrix.create">[docs]</a><span class="k">def</span> <span class="nf">create</span><span class="p">(</span><span class="n">data</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Create matrix object with data.</span>
+<span class="sd">    </span>
+<span class="sd">    :param data: Data to fill the created object with.</span>
+<span class="sd">    :type data: :class:`scipy.sparse.csr_matrix`</span>
+<span class="sd">    :returns: :class:`int` -- the ID of the constructed object.</span>
+<span class="sd">    </span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">m</span><span class="o">.</span><span class="n">create</span><span class="p">(</span><span class="n">data</span><span class="p">)</span>
+
+    </div>
+<div class="viewcode-block" id="store"><a class="viewcode-back" href="../../matrix.html#astra.matrix.store">[docs]</a><span class="k">def</span> <span class="nf">store</span><span class="p">(</span><span class="n">i</span><span class="p">,</span><span class="n">data</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Fill existing matrix object with data.</span>
+<span class="sd">    </span>
+<span class="sd">    :param i: ID of object to fill.</span>
+<span class="sd">    :type i: :class:`int`</span>
+<span class="sd">    :param data: Data to fill the object with.</span>
+<span class="sd">    :type data: :class:`scipy.sparse.csr_matrix`</span>
+<span class="sd">    </span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">m</span><span class="o">.</span><span class="n">store</span><span class="p">(</span><span class="n">i</span><span class="p">,</span><span class="n">data</span><span class="p">)</span>
+</div>
+<div class="viewcode-block" id="get_size"><a class="viewcode-back" href="../../matrix.html#astra.matrix.get_size">[docs]</a><span class="k">def</span> <span class="nf">get_size</span><span class="p">(</span><span class="n">i</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Get matrix dimensions.</span>
+<span class="sd">    </span>
+<span class="sd">    :param i: ID of object.</span>
+<span class="sd">    :type i: :class:`int`</span>
+<span class="sd">    :returns: :class:`tuple` -- matrix dimensions.</span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">m</span><span class="o">.</span><span class="n">get_size</span><span class="p">(</span><span class="n">i</span><span class="p">)</span>
+    </div>
+<div class="viewcode-block" id="get"><a class="viewcode-back" href="../../matrix.html#astra.matrix.get">[docs]</a><span class="k">def</span> <span class="nf">get</span><span class="p">(</span><span class="n">i</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Get a matrix object.</span>
+<span class="sd">    </span>
+<span class="sd">    :param i: ID of object to get.</span>
+<span class="sd">    :type i: :class:`int`</span>
+<span class="sd">    :returns: :class:`scipy.sparse.csr_matrix` --  The object data.</span>
+<span class="sd">    </span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">m</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">i</span><span class="p">)</span>
+</div>
+<div class="viewcode-block" id="info"><a class="viewcode-back" href="../../matrix.html#astra.matrix.info">[docs]</a><span class="k">def</span> <span class="nf">info</span><span class="p">():</span>
+    <span class="sd">&quot;&quot;&quot;Print info on matrix objects in memory.&quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">m</span><span class="o">.</span><span class="n">info</span><span class="p">()</span>
+    
+        </div>
+</pre></div>
+
+          </div>
+        </div>
+      </div>
+      <div class="sphinxsidebar">
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+          <li><a href="../index.html" accesskey="U">Module code</a> &raquo;</li> 
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+      <div class="documentwrapper">
+        <div class="bodywrapper">
+          <div class="body">
+            
+  <h1>Source code for astra.projector</h1><div class="highlight"><pre>
+<span class="c">#-----------------------------------------------------------------------</span>
+<span class="c">#Copyright 2013 Centrum Wiskunde &amp; Informatica, Amsterdam</span>
+<span class="c">#</span>
+<span class="c">#Author: Daniel M. Pelt</span>
+<span class="c">#Contact: D.M.Pelt@cwi.nl</span>
+<span class="c">#Website: http://dmpelt.github.io/pyastratoolbox/</span>
+<span class="c">#</span>
+<span class="c">#</span>
+<span class="c">#This file is part of the Python interface to the</span>
+<span class="c">#All Scale Tomographic Reconstruction Antwerp Toolbox (&quot;ASTRA Toolbox&quot;).</span>
+<span class="c">#</span>
+<span class="c">#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify</span>
+<span class="c">#it under the terms of the GNU General Public License as published by</span>
+<span class="c">#the Free Software Foundation, either version 3 of the License, or</span>
+<span class="c">#(at your option) any later version.</span>
+<span class="c">#</span>
+<span class="c">#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,</span>
+<span class="c">#but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
+<span class="c">#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
+<span class="c">#GNU General Public License for more details.</span>
+<span class="c">#</span>
+<span class="c">#You should have received a copy of the GNU General Public License</span>
+<span class="c">#along with the Python interface to the ASTRA Toolbox. If not, see &lt;http://www.gnu.org/licenses/&gt;.</span>
+<span class="c">#</span>
+<span class="c">#-----------------------------------------------------------------------</span>
+<span class="kn">from</span> <span class="nn">.</span> <span class="kn">import</span> <span class="n">projector_c</span> <span class="k">as</span> <span class="n">p</span>
+
+<div class="viewcode-block" id="create"><a class="viewcode-back" href="../../projector.html#astra.projector.create">[docs]</a><span class="k">def</span> <span class="nf">create</span><span class="p">(</span><span class="n">config</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Create projector object.</span>
+<span class="sd">    </span>
+<span class="sd">    :param config: Projector options.</span>
+<span class="sd">    :type config: :class:`dict`</span>
+<span class="sd">    :returns: :class:`int` -- the ID of the constructed object.</span>
+<span class="sd">    </span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">p</span><span class="o">.</span><span class="n">create</span><span class="p">(</span><span class="n">config</span><span class="p">)</span>
+
+</div>
+<div class="viewcode-block" id="delete"><a class="viewcode-back" href="../../projector.html#astra.projector.delete">[docs]</a><span class="k">def</span> <span class="nf">delete</span><span class="p">(</span><span class="n">ids</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Delete a projector object.</span>
+<span class="sd">    </span>
+<span class="sd">    :param ids: ID or list of ID&#39;s to delete.</span>
+<span class="sd">    :type ids: :class:`int` or :class:`list`</span>
+<span class="sd">    </span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">p</span><span class="o">.</span><span class="n">delete</span><span class="p">(</span><span class="n">ids</span><span class="p">)</span>
+
+</div>
+<div class="viewcode-block" id="clear"><a class="viewcode-back" href="../../projector.html#astra.projector.clear">[docs]</a><span class="k">def</span> <span class="nf">clear</span><span class="p">():</span>
+    <span class="sd">&quot;&quot;&quot;Clear all projector objects.&quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">p</span><span class="o">.</span><span class="n">clear</span><span class="p">()</span>
+
+</div>
+<div class="viewcode-block" id="info"><a class="viewcode-back" href="../../projector.html#astra.projector.info">[docs]</a><span class="k">def</span> <span class="nf">info</span><span class="p">():</span>
+    <span class="sd">&quot;&quot;&quot;Print info on projector objects in memory.&quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">p</span><span class="o">.</span><span class="n">info</span><span class="p">()</span>
+</div>
+<div class="viewcode-block" id="projection_geometry"><a class="viewcode-back" href="../../projector.html#astra.projector.projection_geometry">[docs]</a><span class="k">def</span> <span class="nf">projection_geometry</span><span class="p">(</span><span class="n">i</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Get projection geometry of a projector.</span>
+<span class="sd">    </span>
+<span class="sd">    :param i: ID of projector.</span>
+<span class="sd">    :type i: :class:`int`</span>
+<span class="sd">    :returns: :class:`dict` -- projection geometry</span>
+<span class="sd">    </span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">p</span><span class="o">.</span><span class="n">projection_geometry</span><span class="p">(</span><span class="n">i</span><span class="p">)</span>
+
+</div>
+<div class="viewcode-block" id="volume_geometry"><a class="viewcode-back" href="../../projector.html#astra.projector.volume_geometry">[docs]</a><span class="k">def</span> <span class="nf">volume_geometry</span><span class="p">(</span><span class="n">i</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Get volume geometry of a projector.</span>
+<span class="sd">    </span>
+<span class="sd">    :param i: ID of projector.</span>
+<span class="sd">    :type i: :class:`int`</span>
+<span class="sd">    :returns: :class:`dict` -- volume geometry</span>
+<span class="sd">    </span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">p</span><span class="o">.</span><span class="n">volume_geometry</span><span class="p">(</span><span class="n">i</span><span class="p">)</span>
+
+</div>
+<div class="viewcode-block" id="weights_single_ray"><a class="viewcode-back" href="../../projector.html#astra.projector.weights_single_ray">[docs]</a><span class="k">def</span> <span class="nf">weights_single_ray</span><span class="p">(</span><span class="n">i</span><span class="p">,</span> <span class="n">projection_index</span><span class="p">,</span> <span class="n">detector_index</span><span class="p">):</span>
+    <span class="k">return</span> <span class="n">p</span><span class="o">.</span><span class="n">weights_single_ray</span><span class="p">(</span><span class="n">i</span><span class="p">,</span> <span class="n">projection_index</span><span class="p">,</span> <span class="n">detector_index</span><span class="p">)</span>
+
+</div>
+<div class="viewcode-block" id="weights_projection"><a class="viewcode-back" href="../../projector.html#astra.projector.weights_projection">[docs]</a><span class="k">def</span> <span class="nf">weights_projection</span><span class="p">(</span><span class="n">i</span><span class="p">,</span> <span class="n">projection_index</span><span class="p">):</span>
+    <span class="k">return</span> <span class="n">p</span><span class="o">.</span><span class="n">weights_projection</span><span class="p">(</span><span class="n">i</span><span class="p">,</span> <span class="n">projection_index</span><span class="p">)</span>
+
+</div>
+<div class="viewcode-block" id="splat"><a class="viewcode-back" href="../../projector.html#astra.projector.splat">[docs]</a><span class="k">def</span> <span class="nf">splat</span><span class="p">(</span><span class="n">i</span><span class="p">,</span> <span class="n">row</span><span class="p">,</span> <span class="n">col</span><span class="p">):</span>
+    <span class="k">return</span> <span class="n">p</span><span class="o">.</span><span class="n">splat</span><span class="p">(</span><span class="n">i</span><span class="p">,</span> <span class="n">row</span><span class="p">,</span> <span class="n">col</span><span class="p">)</span>
+
+</div>
+<div class="viewcode-block" id="matrix"><a class="viewcode-back" href="../../projector.html#astra.projector.matrix">[docs]</a><span class="k">def</span> <span class="nf">matrix</span><span class="p">(</span><span class="n">i</span><span class="p">):</span>
+    <span class="sd">&quot;&quot;&quot;Get sparse matrix of a projector.</span>
+<span class="sd">    </span>
+<span class="sd">    :param i: ID of projector.</span>
+<span class="sd">    :type i: :class:`int`</span>
+<span class="sd">    :returns: :class:`int` -- ID of sparse matrix.</span>
+<span class="sd">    </span>
+<span class="sd">    &quot;&quot;&quot;</span>
+    <span class="k">return</span> <span class="n">p</span><span class="o">.</span><span class="n">matrix</span><span class="p">(</span><span class="n">i</span><span class="p">)</span></div>
+</pre></div>
+
+          </div>
+        </div>
+      </div>
+      <div class="sphinxsidebar">
+        <div class="sphinxsidebarwrapper">
+<div id="searchbox" style="display: none">
+  <h3>Quick search</h3>
+    <form class="search" action="../../search.html" method="get">
+      <input type="text" name="q" />
+      <input type="submit" value="Go" />
+      <input type="hidden" name="check_keywords" value="yes" />
+      <input type="hidden" name="area" value="default" />
+    </form>
+    <p class="searchtip" style="font-size: 90%">
+    Enter search terms or a module, class or function name.
+    </p>
+</div>
+<script type="text/javascript">$('#searchbox').show(0);</script>
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+             >index</a></li>
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+             >modules</a> |</li>
+        <li><a href="../../index.html">PyASTRAToolbox 1.6 documentation</a> &raquo;</li>
+          <li><a href="../index.html" >Module code</a> &raquo;</li> 
+      </ul>
+    </div>
+
+    <div class="footer">
+        &copy; Copyright 2013, Centrum Wiskunde &amp; Informatica, Amsterdam.
+      Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.2.3.
+    </div>
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', 'UA-40340335-1', 'dmpelt.github.io');
+  ga('send', 'pageview');
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+</script>
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+</html>
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diff --git a/python/docSRC/_build/html/_modules/index.html b/python/docSRC/_build/html/_modules/index.html
new file mode 100644
index 0000000..a844d93
--- /dev/null
+++ b/python/docSRC/_build/html/_modules/index.html
@@ -0,0 +1,112 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+
+
+<html xmlns="http://www.w3.org/1999/xhtml">
+  <head>
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+    
+    <title>Overview: module code &mdash; PyASTRAToolbox 1.6 documentation</title>
+    
+    <link rel="stylesheet" href="../_static/default.css" type="text/css" />
+    <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
+    
+    <script type="text/javascript">
+      var DOCUMENTATION_OPTIONS = {
+        URL_ROOT:    '../',
+        VERSION:     '1.6',
+        COLLAPSE_INDEX: false,
+        FILE_SUFFIX: '.html',
+        HAS_SOURCE:  true
+      };
+    </script>
+    <script type="text/javascript" src="../_static/jquery.js"></script>
+    <script type="text/javascript" src="../_static/underscore.js"></script>
+    <script type="text/javascript" src="../_static/doctools.js"></script>
+    <script type="text/javascript" src="http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>
+    <link rel="top" title="PyASTRAToolbox 1.6 documentation" href="../index.html" /> 
+  </head>
+  <body>
+    <div class="related">
+      <h3>Navigation</h3>
+      <ul>
+        <li class="right" style="margin-right: 10px">
+          <a href="../genindex.html" title="General Index"
+             accesskey="I">index</a></li>
+        <li class="right" >
+          <a href="../py-modindex.html" title="Python Module Index"
+             >modules</a> |</li>
+        <li><a href="../index.html">PyASTRAToolbox 1.6 documentation</a> &raquo;</li> 
+      </ul>
+    </div>  
+
+    <div class="document">
+      <div class="documentwrapper">
+        <div class="bodywrapper">
+          <div class="body">
+            
+  <h1>All modules for which code is available</h1>
+<ul><li><a href="astra/ASTRAProjector.html">astra.ASTRAProjector</a></li>
+<li><a href="astra/algorithm.html">astra.algorithm</a></li>
+<li><a href="astra/astra.html">astra.astra</a></li>
+<li><a href="astra/creators.html">astra.creators</a></li>
+<li><a href="astra/data2d.html">astra.data2d</a></li>
+<li><a href="astra/data3d.html">astra.data3d</a></li>
+<li><a href="astra/functions.html">astra.functions</a></li>
+<li><a href="astra/matlab.html">astra.matlab</a></li>
+<li><a href="astra/matrix.html">astra.matrix</a></li>
+<li><a href="astra/projector.html">astra.projector</a></li>
+</ul>
+
+          </div>
+        </div>
+      </div>
+      <div class="sphinxsidebar">
+        <div class="sphinxsidebarwrapper">
+<div id="searchbox" style="display: none">
+  <h3>Quick search</h3>
+    <form class="search" action="../search.html" method="get">
+      <input type="text" name="q" />
+      <input type="submit" value="Go" />
+      <input type="hidden" name="check_keywords" value="yes" />
+      <input type="hidden" name="area" value="default" />
+    </form>
+    <p class="searchtip" style="font-size: 90%">
+    Enter search terms or a module, class or function name.
+    </p>
+</div>
+<script type="text/javascript">$('#searchbox').show(0);</script>
+        </div>
+      </div>
+      <div class="clearer"></div>
+    </div>
+    <div class="related">
+      <h3>Navigation</h3>
+      <ul>
+        <li class="right" style="margin-right: 10px">
+          <a href="../genindex.html" title="General Index"
+             >index</a></li>
+        <li class="right" >
+          <a href="../py-modindex.html" title="Python Module Index"
+             >modules</a> |</li>
+        <li><a href="../index.html">PyASTRAToolbox 1.6 documentation</a> &raquo;</li> 
+      </ul>
+    </div>
+
+    <div class="footer">
+        &copy; Copyright 2013, Centrum Wiskunde &amp; Informatica, Amsterdam.
+      Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.2.3.
+    </div>
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', 'UA-40340335-1', 'dmpelt.github.io');
+  ga('send', 'pageview');
+
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+</html>
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diff --git a/python/docSRC/_build/html/_sources/ASTRAProjector.txt b/python/docSRC/_build/html/_sources/ASTRAProjector.txt
new file mode 100644
index 0000000..1c267e3
--- /dev/null
+++ b/python/docSRC/_build/html/_sources/ASTRAProjector.txt
@@ -0,0 +1,8 @@
+Helper class: the :mod:`ASTRAProjector` module
+==============================================
+
+.. automodule:: astra.ASTRAProjector
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
diff --git a/python/docSRC/_build/html/_sources/algorithm.txt b/python/docSRC/_build/html/_sources/algorithm.txt
new file mode 100644
index 0000000..83752bd
--- /dev/null
+++ b/python/docSRC/_build/html/_sources/algorithm.txt
@@ -0,0 +1,8 @@
+Algorithms: the :mod:`algorithm` module
+=======================================
+
+.. automodule:: astra.algorithm
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
diff --git a/python/docSRC/_build/html/_sources/astra.txt b/python/docSRC/_build/html/_sources/astra.txt
new file mode 100644
index 0000000..5d5fdf0
--- /dev/null
+++ b/python/docSRC/_build/html/_sources/astra.txt
@@ -0,0 +1,8 @@
+Additional ASTRA methods: the :mod:`astra` module
+========================================================
+
+.. automodule:: astra.astra
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
diff --git a/python/docSRC/_build/html/_sources/creators.txt b/python/docSRC/_build/html/_sources/creators.txt
new file mode 100644
index 0000000..d6249c3
--- /dev/null
+++ b/python/docSRC/_build/html/_sources/creators.txt
@@ -0,0 +1,8 @@
+Creation of objects: the :mod:`creators` module
+===============================================
+
+.. automodule:: astra.creators
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
diff --git a/python/docSRC/_build/html/_sources/data2d.txt b/python/docSRC/_build/html/_sources/data2d.txt
new file mode 100644
index 0000000..342cbec
--- /dev/null
+++ b/python/docSRC/_build/html/_sources/data2d.txt
@@ -0,0 +1,8 @@
+2D data objects: the :mod:`data2d` module
+=========================================
+
+.. automodule:: astra.data2d
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
diff --git a/python/docSRC/_build/html/_sources/data3d.txt b/python/docSRC/_build/html/_sources/data3d.txt
new file mode 100644
index 0000000..5b7de23
--- /dev/null
+++ b/python/docSRC/_build/html/_sources/data3d.txt
@@ -0,0 +1,8 @@
+3D data objects: the :mod:`data3d` module
+=========================================
+
+.. automodule:: astra.data3d
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
diff --git a/python/docSRC/_build/html/_sources/functions.txt b/python/docSRC/_build/html/_sources/functions.txt
new file mode 100644
index 0000000..749eb27
--- /dev/null
+++ b/python/docSRC/_build/html/_sources/functions.txt
@@ -0,0 +1,8 @@
+Additional functions: the :mod:`functions` module
+=================================================
+
+.. automodule:: astra.functions
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
diff --git a/python/docSRC/_build/html/_sources/index.txt b/python/docSRC/_build/html/_sources/index.txt
new file mode 100644
index 0000000..8d17a4a
--- /dev/null
+++ b/python/docSRC/_build/html/_sources/index.txt
@@ -0,0 +1,34 @@
+.. .. documentation master file, created by
+   sphinx-quickstart on Wed Mar 13 16:36:32 2013.
+   You can adapt this file completely to your liking, but it should at least
+   contain the root `toctree` directive.
+
+Welcome to PyASTRAToolbox's documentation!
+==========================================
+
+Contents:
+
+.. toctree::
+   :maxdepth: 4
+
+   data2d
+   data3d
+   projector
+   algorithm
+   matrix
+   creators
+   functions
+   ASTRAProjector
+   matlab
+   astra
+.. astra
+.. builder
+
+
+Indices and tables
+==================
+
+* :ref:`genindex`
+* :ref:`modindex`
+* :ref:`search`
+
diff --git a/python/docSRC/_build/html/_sources/matlab.txt b/python/docSRC/_build/html/_sources/matlab.txt
new file mode 100644
index 0000000..fb7033e
--- /dev/null
+++ b/python/docSRC/_build/html/_sources/matlab.txt
@@ -0,0 +1,8 @@
+MATLAB compatibility interface: the :mod:`matlab` module
+========================================================
+
+.. automodule:: astra.matlab
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
diff --git a/python/docSRC/_build/html/_sources/matrix.txt b/python/docSRC/_build/html/_sources/matrix.txt
new file mode 100644
index 0000000..6f11d8a
--- /dev/null
+++ b/python/docSRC/_build/html/_sources/matrix.txt
@@ -0,0 +1,8 @@
+Sparse matrices: the :mod:`matrix` module
+=========================================
+
+.. automodule:: astra.matrix
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
diff --git a/python/docSRC/_build/html/_sources/projector.txt b/python/docSRC/_build/html/_sources/projector.txt
new file mode 100644
index 0000000..b0854e8
--- /dev/null
+++ b/python/docSRC/_build/html/_sources/projector.txt
@@ -0,0 +1,8 @@
+Projector object: the :mod:`projector` module
+=============================================
+
+.. automodule:: astra.projector
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
diff --git a/python/docSRC/_build/html/_static/ajax-loader.gif b/python/docSRC/_build/html/_static/ajax-loader.gif
new file mode 100644
index 0000000..61faf8c
--- /dev/null
+++ b/python/docSRC/_build/html/_static/ajax-loader.gif
diff --git a/python/docSRC/_build/html/_static/basic.css b/python/docSRC/_build/html/_static/basic.css
new file mode 100644
index 0000000..967e36c
--- /dev/null
+++ b/python/docSRC/_build/html/_static/basic.css
@@ -0,0 +1,537 @@
+/*
+ * basic.css
+ * ~~~~~~~~~
+ *
+ * Sphinx stylesheet -- basic theme.
+ *
+ * :copyright: Copyright 2007-2014 by the Sphinx team, see AUTHORS.
+ * :license: BSD, see LICENSE for details.
+ *
+ */
+
+/* -- main layout ----------------------------------------------------------- */
+
+div.clearer {
+    clear: both;
+}
+
+/* -- relbar ---------------------------------------------------------------- */
+
+div.related {
+    width: 100%;
+    font-size: 90%;
+}
+
+div.related h3 {
+    display: none;
+}
+
+div.related ul {
+    margin: 0;
+    padding: 0 0 0 10px;
+    list-style: none;
+}
+
+div.related li {
+    display: inline;
+}
+
+div.related li.right {
+    float: right;
+    margin-right: 5px;
+}
+
+/* -- sidebar --------------------------------------------------------------- */
+
+div.sphinxsidebarwrapper {
+    padding: 10px 5px 0 10px;
+}
+
+div.sphinxsidebar {
+    float: left;
+    width: 230px;
+    margin-left: -100%;
+    font-size: 90%;
+}
+
+div.sphinxsidebar ul {
+    list-style: none;
+}
+
+div.sphinxsidebar ul ul,
+div.sphinxsidebar ul.want-points {
+    margin-left: 20px;
+    list-style: square;
+}
+
+div.sphinxsidebar ul ul {
+    margin-top: 0;
+    margin-bottom: 0;
+}
+
+div.sphinxsidebar form {
+    margin-top: 10px;
+}
+
+div.sphinxsidebar input {
+    border: 1px solid #98dbcc;
+    font-family: sans-serif;
+    font-size: 1em;
+}
+
+div.sphinxsidebar #searchbox input[type="text"] {
+    width: 170px;
+}
+
+div.sphinxsidebar #searchbox input[type="submit"] {
+    width: 30px;
+}
+
+img {
+    border: 0;
+    max-width: 100%;
+}
+
+/* -- search page ----------------------------------------------------------- */
+
+ul.search {
+    margin: 10px 0 0 20px;
+    padding: 0;
+}
+
+ul.search li {
+    padding: 5px 0 5px 20px;
+    background-image: url(file.png);
+    background-repeat: no-repeat;
+    background-position: 0 7px;
+}
+
+ul.search li a {
+    font-weight: bold;
+}
+
+ul.search li div.context {
+    color: #888;
+    margin: 2px 0 0 30px;
+    text-align: left;
+}
+
+ul.keywordmatches li.goodmatch a {
+    font-weight: bold;
+}
+
+/* -- index page ------------------------------------------------------------ */
+
+table.contentstable {
+    width: 90%;
+}
+
+table.contentstable p.biglink {
+    line-height: 150%;
+}
+
+a.biglink {
+    font-size: 1.3em;
+}
+
+span.linkdescr {
+    font-style: italic;
+    padding-top: 5px;
+    font-size: 90%;
+}
+
+/* -- general index --------------------------------------------------------- */
+
+table.indextable {
+    width: 100%;
+}
+
+table.indextable td {
+    text-align: left;
+    vertical-align: top;
+}
+
+table.indextable dl, table.indextable dd {
+    margin-top: 0;
+    margin-bottom: 0;
+}
+
+table.indextable tr.pcap {
+    height: 10px;
+}
+
+table.indextable tr.cap {
+    margin-top: 10px;
+    background-color: #f2f2f2;
+}
+
+img.toggler {
+    margin-right: 3px;
+    margin-top: 3px;
+    cursor: pointer;
+}
+
+div.modindex-jumpbox {
+    border-top: 1px solid #ddd;
+    border-bottom: 1px solid #ddd;
+    margin: 1em 0 1em 0;
+    padding: 0.4em;
+}
+
+div.genindex-jumpbox {
+    border-top: 1px solid #ddd;
+    border-bottom: 1px solid #ddd;
+    margin: 1em 0 1em 0;
+    padding: 0.4em;
+}
+
+/* -- general body styles --------------------------------------------------- */
+
+a.headerlink {
+    visibility: hidden;
+}
+
+h1:hover > a.headerlink,
+h2:hover > a.headerlink,
+h3:hover > a.headerlink,
+h4:hover > a.headerlink,
+h5:hover > a.headerlink,
+h6:hover > a.headerlink,
+dt:hover > a.headerlink {
+    visibility: visible;
+}
+
+div.body p.caption {
+    text-align: inherit;
+}
+
+div.body td {
+    text-align: left;
+}
+
+.field-list ul {
+    padding-left: 1em;
+}
+
+.first {
+    margin-top: 0 !important;
+}
+
+p.rubric {
+    margin-top: 30px;
+    font-weight: bold;
+}
+
+img.align-left, .figure.align-left, object.align-left {
+    clear: left;
+    float: left;
+    margin-right: 1em;
+}
+
+img.align-right, .figure.align-right, object.align-right {
+    clear: right;
+    float: right;
+    margin-left: 1em;
+}
+
+img.align-center, .figure.align-center, object.align-center {
+  display: block;
+  margin-left: auto;
+  margin-right: auto;
+}
+
+.align-left {
+    text-align: left;
+}
+
+.align-center {
+    text-align: center;
+}
+
+.align-right {
+    text-align: right;
+}
+
+/* -- sidebars -------------------------------------------------------------- */
+
+div.sidebar {
+    margin: 0 0 0.5em 1em;
+    border: 1px solid #ddb;
+    padding: 7px 7px 0 7px;
+    background-color: #ffe;
+    width: 40%;
+    float: right;
+}
+
+p.sidebar-title {
+    font-weight: bold;
+}
+
+/* -- topics ---------------------------------------------------------------- */
+
+div.topic {
+    border: 1px solid #ccc;
+    padding: 7px 7px 0 7px;
+    margin: 10px 0 10px 0;
+}
+
+p.topic-title {
+    font-size: 1.1em;
+    font-weight: bold;
+    margin-top: 10px;
+}
+
+/* -- admonitions ----------------------------------------------------------- */
+
+div.admonition {
+    margin-top: 10px;
+    margin-bottom: 10px;
+    padding: 7px;
+}
+
+div.admonition dt {
+    font-weight: bold;
+}
+
+div.admonition dl {
+    margin-bottom: 0;
+}
+
+p.admonition-title {
+    margin: 0px 10px 5px 0px;
+    font-weight: bold;
+}
+
+div.body p.centered {
+    text-align: center;
+    margin-top: 25px;
+}
+
+/* -- tables ---------------------------------------------------------------- */
+
+table.docutils {
+    border: 0;
+    border-collapse: collapse;
+}
+
+table.docutils td, table.docutils th {
+    padding: 1px 8px 1px 5px;
+    border-top: 0;
+    border-left: 0;
+    border-right: 0;
+    border-bottom: 1px solid #aaa;
+}
+
+table.field-list td, table.field-list th {
+    border: 0 !important;
+}
+
+table.footnote td, table.footnote th {
+    border: 0 !important;
+}
+
+th {
+    text-align: left;
+    padding-right: 5px;
+}
+
+table.citation {
+    border-left: solid 1px gray;
+    margin-left: 1px;
+}
+
+table.citation td {
+    border-bottom: none;
+}
+
+/* -- other body styles ----------------------------------------------------- */
+
+ol.arabic {
+    list-style: decimal;
+}
+
+ol.loweralpha {
+    list-style: lower-alpha;
+}
+
+ol.upperalpha {
+    list-style: upper-alpha;
+}
+
+ol.lowerroman {
+    list-style: lower-roman;
+}
+
+ol.upperroman {
+    list-style: upper-roman;
+}
+
+dl {
+    margin-bottom: 15px;
+}
+
+dd p {
+    margin-top: 0px;
+}
+
+dd ul, dd table {
+    margin-bottom: 10px;
+}
+
+dd {
+    margin-top: 3px;
+    margin-bottom: 10px;
+    margin-left: 30px;
+}
+
+dt:target, .highlighted {
+    background-color: #fbe54e;
+}
+
+dl.glossary dt {
+    font-weight: bold;
+    font-size: 1.1em;
+}
+
+.field-list ul {
+    margin: 0;
+    padding-left: 1em;
+}
+
+.field-list p {
+    margin: 0;
+}
+
+.optional {
+    font-size: 1.3em;
+}
+
+.versionmodified {
+    font-style: italic;
+}
+
+.system-message {
+    background-color: #fda;
+    padding: 5px;
+    border: 3px solid red;
+}
+
+.footnote:target  {
+    background-color: #ffa;
+}
+
+.line-block {
+    display: block;
+    margin-top: 1em;
+    margin-bottom: 1em;
+}
+
+.line-block .line-block {
+    margin-top: 0;
+    margin-bottom: 0;
+    margin-left: 1.5em;
+}
+
+.guilabel, .menuselection {
+    font-family: sans-serif;
+}
+
+.accelerator {
+    text-decoration: underline;
+}
+
+.classifier {
+    font-style: oblique;
+}
+
+abbr, acronym {
+    border-bottom: dotted 1px;
+    cursor: help;
+}
+
+/* -- code displays --------------------------------------------------------- */
+
+pre {
+    overflow: auto;
+    overflow-y: hidden;  /* fixes display issues on Chrome browsers */
+}
+
+td.linenos pre {
+    padding: 5px 0px;
+    border: 0;
+    background-color: transparent;
+    color: #aaa;
+}
+
+table.highlighttable {
+    margin-left: 0.5em;
+}
+
+table.highlighttable td {
+    padding: 0 0.5em 0 0.5em;
+}
+
+tt.descname {
+    background-color: transparent;
+    font-weight: bold;
+    font-size: 1.2em;
+}
+
+tt.descclassname {
+    background-color: transparent;
+}
+
+tt.xref, a tt {
+    background-color: transparent;
+    font-weight: bold;
+}
+
+h1 tt, h2 tt, h3 tt, h4 tt, h5 tt, h6 tt {
+    background-color: transparent;
+}
+
+.viewcode-link {
+    float: right;
+}
+
+.viewcode-back {
+    float: right;
+    font-family: sans-serif;
+}
+
+div.viewcode-block:target {
+    margin: -1px -10px;
+    padding: 0 10px;
+}
+
+/* -- math display ---------------------------------------------------------- */
+
+img.math {
+    vertical-align: middle;
+}
+
+div.body div.math p {
+    text-align: center;
+}
+
+span.eqno {
+    float: right;
+}
+
+/* -- printout stylesheet --------------------------------------------------- */
+
+@media print {
+    div.document,
+    div.documentwrapper,
+    div.bodywrapper {
+        margin: 0 !important;
+        width: 100%;
+    }
+
+    div.sphinxsidebar,
+    div.related,
+    div.footer,
+    #top-link {
+        display: none;
+    }
+}
\ No newline at end of file
diff --git a/python/docSRC/_build/html/_static/comment-bright.png b/python/docSRC/_build/html/_static/comment-bright.png
new file mode 100644
index 0000000..551517b
--- /dev/null
+++ b/python/docSRC/_build/html/_static/comment-bright.png
diff --git a/python/docSRC/_build/html/_static/comment-close.png b/python/docSRC/_build/html/_static/comment-close.png
new file mode 100644
index 0000000..09b54be
--- /dev/null
+++ b/python/docSRC/_build/html/_static/comment-close.png
diff --git a/python/docSRC/_build/html/_static/comment.png b/python/docSRC/_build/html/_static/comment.png
new file mode 100644
index 0000000..92feb52
--- /dev/null
+++ b/python/docSRC/_build/html/_static/comment.png
diff --git a/python/docSRC/_build/html/_static/default.css b/python/docSRC/_build/html/_static/default.css
new file mode 100644
index 0000000..5f1399a
--- /dev/null
+++ b/python/docSRC/_build/html/_static/default.css
@@ -0,0 +1,256 @@
+/*
+ * default.css_t
+ * ~~~~~~~~~~~~~
+ *
+ * Sphinx stylesheet -- default theme.
+ *
+ * :copyright: Copyright 2007-2014 by the Sphinx team, see AUTHORS.
+ * :license: BSD, see LICENSE for details.
+ *
+ */
+
+@import url("basic.css");
+
+/* -- page layout ----------------------------------------------------------- */
+
+body {
+    font-family: sans-serif;
+    font-size: 100%;
+    background-color: #11303d;
+    color: #000;
+    margin: 0;
+    padding: 0;
+}
+
+div.document {
+    background-color: #1c4e63;
+}
+
+div.documentwrapper {
+    float: left;
+    width: 100%;
+}
+
+div.bodywrapper {
+    margin: 0 0 0 230px;
+}
+
+div.body {
+    background-color: #ffffff;
+    color: #000000;
+    padding: 0 20px 30px 20px;
+}
+
+div.footer {
+    color: #ffffff;
+    width: 100%;
+    padding: 9px 0 9px 0;
+    text-align: center;
+    font-size: 75%;
+}
+
+div.footer a {
+    color: #ffffff;
+    text-decoration: underline;
+}
+
+div.related {
+    background-color: #133f52;
+    line-height: 30px;
+    color: #ffffff;
+}
+
+div.related a {
+    color: #ffffff;
+}
+
+div.sphinxsidebar {
+}
+
+div.sphinxsidebar h3 {
+    font-family: 'Trebuchet MS', sans-serif;
+    color: #ffffff;
+    font-size: 1.4em;
+    font-weight: normal;
+    margin: 0;
+    padding: 0;
+}
+
+div.sphinxsidebar h3 a {
+    color: #ffffff;
+}
+
+div.sphinxsidebar h4 {
+    font-family: 'Trebuchet MS', sans-serif;
+    color: #ffffff;
+    font-size: 1.3em;
+    font-weight: normal;
+    margin: 5px 0 0 0;
+    padding: 0;
+}
+
+div.sphinxsidebar p {
+    color: #ffffff;
+}
+
+div.sphinxsidebar p.topless {
+    margin: 5px 10px 10px 10px;
+}
+
+div.sphinxsidebar ul {
+    margin: 10px;
+    padding: 0;
+    color: #ffffff;
+}
+
+div.sphinxsidebar a {
+    color: #98dbcc;
+}
+
+div.sphinxsidebar input {
+    border: 1px solid #98dbcc;
+    font-family: sans-serif;
+    font-size: 1em;
+}
+
+
+
+/* -- hyperlink styles ------------------------------------------------------ */
+
+a {
+    color: #355f7c;
+    text-decoration: none;
+}
+
+a:visited {
+    color: #355f7c;
+    text-decoration: none;
+}
+
+a:hover {
+    text-decoration: underline;
+}
+
+
+
+/* -- body styles ----------------------------------------------------------- */
+
+div.body h1,
+div.body h2,
+div.body h3,
+div.body h4,
+div.body h5,
+div.body h6 {
+    font-family: 'Trebuchet MS', sans-serif;
+    background-color: #f2f2f2;
+    font-weight: normal;
+    color: #20435c;
+    border-bottom: 1px solid #ccc;
+    margin: 20px -20px 10px -20px;
+    padding: 3px 0 3px 10px;
+}
+
+div.body h1 { margin-top: 0; font-size: 200%; }
+div.body h2 { font-size: 160%; }
+div.body h3 { font-size: 140%; }
+div.body h4 { font-size: 120%; }
+div.body h5 { font-size: 110%; }
+div.body h6 { font-size: 100%; }
+
+a.headerlink {
+    color: #c60f0f;
+    font-size: 0.8em;
+    padding: 0 4px 0 4px;
+    text-decoration: none;
+}
+
+a.headerlink:hover {
+    background-color: #c60f0f;
+    color: white;
+}
+
+div.body p, div.body dd, div.body li {
+    text-align: justify;
+    line-height: 130%;
+}
+
+div.admonition p.admonition-title + p {
+    display: inline;
+}
+
+div.admonition p {
+    margin-bottom: 5px;
+}
+
+div.admonition pre {
+    margin-bottom: 5px;
+}
+
+div.admonition ul, div.admonition ol {
+    margin-bottom: 5px;
+}
+
+div.note {
+    background-color: #eee;
+    border: 1px solid #ccc;
+}
+
+div.seealso {
+    background-color: #ffc;
+    border: 1px solid #ff6;
+}
+
+div.topic {
+    background-color: #eee;
+}
+
+div.warning {
+    background-color: #ffe4e4;
+    border: 1px solid #f66;
+}
+
+p.admonition-title {
+    display: inline;
+}
+
+p.admonition-title:after {
+    content: ":";
+}
+
+pre {
+    padding: 5px;
+    background-color: #eeffcc;
+    color: #333333;
+    line-height: 120%;
+    border: 1px solid #ac9;
+    border-left: none;
+    border-right: none;
+}
+
+tt {
+    background-color: #ecf0f3;
+    padding: 0 1px 0 1px;
+    font-size: 0.95em;
+}
+
+th {
+    background-color: #ede;
+}
+
+.warning tt {
+    background: #efc2c2;
+}
+
+.note tt {
+    background: #d6d6d6;
+}
+
+.viewcode-back {
+    font-family: sans-serif;
+}
+
+div.viewcode-block:target {
+    background-color: #f4debf;
+    border-top: 1px solid #ac9;
+    border-bottom: 1px solid #ac9;
+}
\ No newline at end of file
diff --git a/python/docSRC/_build/html/_static/doctools.js b/python/docSRC/_build/html/_static/doctools.js
new file mode 100644
index 0000000..c5455c9
--- /dev/null
+++ b/python/docSRC/_build/html/_static/doctools.js
@@ -0,0 +1,238 @@
+/*
+ * doctools.js
+ * ~~~~~~~~~~~
+ *
+ * Sphinx JavaScript utilities for all documentation.
+ *
+ * :copyright: Copyright 2007-2014 by the Sphinx team, see AUTHORS.
+ * :license: BSD, see LICENSE for details.
+ *
+ */
+
+/**
+ * select a different prefix for underscore
+ */
+$u = _.noConflict();
+
+/**
+ * make the code below compatible with browsers without
+ * an installed firebug like debugger
+if (!window.console || !console.firebug) {
+  var names = ["log", "debug", "info", "warn", "error", "assert", "dir",
+    "dirxml", "group", "groupEnd", "time", "timeEnd", "count", "trace",
+    "profile", "profileEnd"];
+  window.console = {};
+  for (var i = 0; i < names.length; ++i)
+    window.console[names[i]] = function() {};
+}
+ */
+
+/**
+ * small helper function to urldecode strings
+ */
+jQuery.urldecode = function(x) {
+  return decodeURIComponent(x).replace(/\+/g, ' ');
+};
+
+/**
+ * small helper function to urlencode strings
+ */
+jQuery.urlencode = encodeURIComponent;
+
+/**
+ * This function returns the parsed url parameters of the
+ * current request. Multiple values per key are supported,
+ * it will always return arrays of strings for the value parts.
+ */
+jQuery.getQueryParameters = function(s) {
+  if (typeof s == 'undefined')
+    s = document.location.search;
+  var parts = s.substr(s.indexOf('?') + 1).split('&');
+  var result = {};
+  for (var i = 0; i < parts.length; i++) {
+    var tmp = parts[i].split('=', 2);
+    var key = jQuery.urldecode(tmp[0]);
+    var value = jQuery.urldecode(tmp[1]);
+    if (key in result)
+      result[key].push(value);
+    else
+      result[key] = [value];
+  }
+  return result;
+};
+
+/**
+ * highlight a given string on a jquery object by wrapping it in
+ * span elements with the given class name.
+ */
+jQuery.fn.highlightText = function(text, className) {
+  function highlight(node) {
+    if (node.nodeType == 3) {
+      var val = node.nodeValue;
+      var pos = val.toLowerCase().indexOf(text);
+      if (pos >= 0 && !jQuery(node.parentNode).hasClass(className)) {
+        var span = document.createElement("span");
+        span.className = className;
+        span.appendChild(document.createTextNode(val.substr(pos, text.length)));
+        node.parentNode.insertBefore(span, node.parentNode.insertBefore(
+          document.createTextNode(val.substr(pos + text.length)),
+          node.nextSibling));
+        node.nodeValue = val.substr(0, pos);
+      }
+    }
+    else if (!jQuery(node).is("button, select, textarea")) {
+      jQuery.each(node.childNodes, function() {
+        highlight(this);
+      });
+    }
+  }
+  return this.each(function() {
+    highlight(this);
+  });
+};
+
+/**
+ * Small JavaScript module for the documentation.
+ */
+var Documentation = {
+
+  init : function() {
+    this.fixFirefoxAnchorBug();
+    this.highlightSearchWords();
+    this.initIndexTable();
+  },
+
+  /**
+   * i18n support
+   */
+  TRANSLATIONS : {},
+  PLURAL_EXPR : function(n) { return n == 1 ? 0 : 1; },
+  LOCALE : 'unknown',
+
+  // gettext and ngettext don't access this so that the functions
+  // can safely bound to a different name (_ = Documentation.gettext)
+  gettext : function(string) {
+    var translated = Documentation.TRANSLATIONS[string];
+    if (typeof translated == 'undefined')
+      return string;
+    return (typeof translated == 'string') ? translated : translated[0];
+  },
+
+  ngettext : function(singular, plural, n) {
+    var translated = Documentation.TRANSLATIONS[singular];
+    if (typeof translated == 'undefined')
+      return (n == 1) ? singular : plural;
+    return translated[Documentation.PLURALEXPR(n)];
+  },
+
+  addTranslations : function(catalog) {
+    for (var key in catalog.messages)
+      this.TRANSLATIONS[key] = catalog.messages[key];
+    this.PLURAL_EXPR = new Function('n', 'return +(' + catalog.plural_expr + ')');
+    this.LOCALE = catalog.locale;
+  },
+
+  /**
+   * add context elements like header anchor links
+   */
+  addContextElements : function() {
+    $('div[id] > :header:first').each(function() {
+      $('<a class="headerlink">\u00B6</a>').
+      attr('href', '#' + this.id).
+      attr('title', _('Permalink to this headline')).
+      appendTo(this);
+    });
+    $('dt[id]').each(function() {
+      $('<a class="headerlink">\u00B6</a>').
+      attr('href', '#' + this.id).
+      attr('title', _('Permalink to this definition')).
+      appendTo(this);
+    });
+  },
+
+  /**
+   * workaround a firefox stupidity
+   */
+  fixFirefoxAnchorBug : function() {
+    if (document.location.hash && $.browser.mozilla)
+      window.setTimeout(function() {
+        document.location.href += '';
+      }, 10);
+  },
+
+  /**
+   * highlight the search words provided in the url in the text
+   */
+  highlightSearchWords : function() {
+    var params = $.getQueryParameters();
+    var terms = (params.highlight) ? params.highlight[0].split(/\s+/) : [];
+    if (terms.length) {
+      var body = $('div.body');
+      if (!body.length) {
+        body = $('body');
+      }
+      window.setTimeout(function() {
+        $.each(terms, function() {
+          body.highlightText(this.toLowerCase(), 'highlighted');
+        });
+      }, 10);
+      $('<p class="highlight-link"><a href="javascript:Documentation.' +
+        'hideSearchWords()">' + _('Hide Search Matches') + '</a></p>')
+          .appendTo($('#searchbox'));
+    }
+  },
+
+  /**
+   * init the domain index toggle buttons
+   */
+  initIndexTable : function() {
+    var togglers = $('img.toggler').click(function() {
+      var src = $(this).attr('src');
+      var idnum = $(this).attr('id').substr(7);
+      $('tr.cg-' + idnum).toggle();
+      if (src.substr(-9) == 'minus.png')
+        $(this).attr('src', src.substr(0, src.length-9) + 'plus.png');
+      else
+        $(this).attr('src', src.substr(0, src.length-8) + 'minus.png');
+    }).css('display', '');
+    if (DOCUMENTATION_OPTIONS.COLLAPSE_INDEX) {
+        togglers.click();
+    }
+  },
+
+  /**
+   * helper function to hide the search marks again
+   */
+  hideSearchWords : function() {
+    $('#searchbox .highlight-link').fadeOut(300);
+    $('span.highlighted').removeClass('highlighted');
+  },
+
+  /**
+   * make the url absolute
+   */
+  makeURL : function(relativeURL) {
+    return DOCUMENTATION_OPTIONS.URL_ROOT + '/' + relativeURL;
+  },
+
+  /**
+   * get the current relative url
+   */
+  getCurrentURL : function() {
+    var path = document.location.pathname;
+    var parts = path.split(/\//);
+    $.each(DOCUMENTATION_OPTIONS.URL_ROOT.split(/\//), function() {
+      if (this == '..')
+        parts.pop();
+    });
+    var url = parts.join('/');
+    return path.substring(url.lastIndexOf('/') + 1, path.length - 1);
+  }
+};
+
+// quick alias for translations
+_ = Documentation.gettext;
+
+$(document).ready(function() {
+  Documentation.init();
+});
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new file mode 100644
index 0000000..6f7ad78
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index 0000000..3003a88
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diff --git a/python/docSRC/_build/html/_static/file.png b/python/docSRC/_build/html/_static/file.png
new file mode 100644
index 0000000..d18082e
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diff --git a/python/docSRC/_build/html/_static/jquery.js b/python/docSRC/_build/html/_static/jquery.js
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diff --git a/python/docSRC/_build/html/_static/minus.png b/python/docSRC/_build/html/_static/minus.png
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index 0000000..da1c562
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diff --git a/python/docSRC/_build/html/_static/plus.png b/python/docSRC/_build/html/_static/plus.png
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index 0000000..b3cb374
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diff --git a/python/docSRC/_build/html/_static/pygments.css b/python/docSRC/_build/html/_static/pygments.css
new file mode 100644
index 0000000..57eadc0
--- /dev/null
+++ b/python/docSRC/_build/html/_static/pygments.css
@@ -0,0 +1,63 @@
+.highlight .hll { background-color: #ffffcc }
+.highlight  { background: #eeffcc; }
+.highlight .c { color: #408090; font-style: italic } /* Comment */
+.highlight .err { border: 1px solid #FF0000 } /* Error */
+.highlight .k { color: #007020; font-weight: bold } /* Keyword */
+.highlight .o { color: #666666 } /* Operator */
+.highlight .cm { color: #408090; font-style: italic } /* Comment.Multiline */
+.highlight .cp { color: #007020 } /* Comment.Preproc */
+.highlight .c1 { color: #408090; font-style: italic } /* Comment.Single */
+.highlight .cs { color: #408090; background-color: #fff0f0 } /* Comment.Special */
+.highlight .gd { color: #A00000 } /* Generic.Deleted */
+.highlight .ge { font-style: italic } /* Generic.Emph */
+.highlight .gr { color: #FF0000 } /* Generic.Error */
+.highlight .gh { color: #000080; font-weight: bold } /* Generic.Heading */
+.highlight .gi { color: #00A000 } /* Generic.Inserted */
+.highlight .go { color: #333333 } /* Generic.Output */
+.highlight .gp { color: #c65d09; font-weight: bold } /* Generic.Prompt */
+.highlight .gs { font-weight: bold } /* Generic.Strong */
+.highlight .gu { color: #800080; font-weight: bold } /* Generic.Subheading */
+.highlight .gt { color: #0044DD } /* Generic.Traceback */
+.highlight .kc { color: #007020; font-weight: bold } /* Keyword.Constant */
+.highlight .kd { color: #007020; font-weight: bold } /* Keyword.Declaration */
+.highlight .kn { color: #007020; font-weight: bold } /* Keyword.Namespace */
+.highlight .kp { color: #007020 } /* Keyword.Pseudo */
+.highlight .kr { color: #007020; font-weight: bold } /* Keyword.Reserved */
+.highlight .kt { color: #902000 } /* Keyword.Type */
+.highlight .m { color: #208050 } /* Literal.Number */
+.highlight .s { color: #4070a0 } /* Literal.String */
+.highlight .na { color: #4070a0 } /* Name.Attribute */
+.highlight .nb { color: #007020 } /* Name.Builtin */
+.highlight .nc { color: #0e84b5; font-weight: bold } /* Name.Class */
+.highlight .no { color: #60add5 } /* Name.Constant */
+.highlight .nd { color: #555555; font-weight: bold } /* Name.Decorator */
+.highlight .ni { color: #d55537; font-weight: bold } /* Name.Entity */
+.highlight .ne { color: #007020 } /* Name.Exception */
+.highlight .nf { color: #06287e } /* Name.Function */
+.highlight .nl { color: #002070; font-weight: bold } /* Name.Label */
+.highlight .nn { color: #0e84b5; font-weight: bold } /* Name.Namespace */
+.highlight .nt { color: #062873; font-weight: bold } /* Name.Tag */
+.highlight .nv { color: #bb60d5 } /* Name.Variable */
+.highlight .ow { color: #007020; font-weight: bold } /* Operator.Word */
+.highlight .w { color: #bbbbbb } /* Text.Whitespace */
+.highlight .mb { color: #208050 } /* Literal.Number.Bin */
+.highlight .mf { color: #208050 } /* Literal.Number.Float */
+.highlight .mh { color: #208050 } /* Literal.Number.Hex */
+.highlight .mi { color: #208050 } /* Literal.Number.Integer */
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diff --git a/python/docSRC/_build/html/_static/searchtools.js b/python/docSRC/_build/html/_static/searchtools.js
new file mode 100644
index 0000000..6e1f06b
--- /dev/null
+++ b/python/docSRC/_build/html/_static/searchtools.js
@@ -0,0 +1,622 @@
+/*
+ * searchtools.js_t
+ * ~~~~~~~~~~~~~~~~
+ *
+ * Sphinx JavaScript utilties for the full-text search.
+ *
+ * :copyright: Copyright 2007-2014 by the Sphinx team, see AUTHORS.
+ * :license: BSD, see LICENSE for details.
+ *
+ */
+
+
+/**
+ * Porter Stemmer
+ */
+var Stemmer = function() {
+
+  var step2list = {
+    ational: 'ate',
+    tional: 'tion',
+    enci: 'ence',
+    anci: 'ance',
+    izer: 'ize',
+    bli: 'ble',
+    alli: 'al',
+    entli: 'ent',
+    eli: 'e',
+    ousli: 'ous',
+    ization: 'ize',
+    ation: 'ate',
+    ator: 'ate',
+    alism: 'al',
+    iveness: 'ive',
+    fulness: 'ful',
+    ousness: 'ous',
+    aliti: 'al',
+    iviti: 'ive',
+    biliti: 'ble',
+    logi: 'log'
+  };
+
+  var step3list = {
+    icate: 'ic',
+    ative: '',
+    alize: 'al',
+    iciti: 'ic',
+    ical: 'ic',
+    ful: '',
+    ness: ''
+  };
+
+  var c = "[^aeiou]";          // consonant
+  var v = "[aeiouy]";          // vowel
+  var C = c + "[^aeiouy]*";    // consonant sequence
+  var V = v + "[aeiou]*";      // vowel sequence
+
+  var mgr0 = "^(" + C + ")?" + V + C;                      // [C]VC... is m>0
+  var meq1 = "^(" + C + ")?" + V + C + "(" + V + ")?$";    // [C]VC[V] is m=1
+  var mgr1 = "^(" + C + ")?" + V + C + V + C;              // [C]VCVC... is m>1
+  var s_v   = "^(" + C + ")?" + v;                         // vowel in stem
+
+  this.stemWord = function (w) {
+    var stem;
+    var suffix;
+    var firstch;
+    var origword = w;
+
+    if (w.length < 3)
+      return w;
+
+    var re;
+    var re2;
+    var re3;
+    var re4;
+
+    firstch = w.substr(0,1);
+    if (firstch == "y")
+      w = firstch.toUpperCase() + w.substr(1);
+
+    // Step 1a
+    re = /^(.+?)(ss|i)es$/;
+    re2 = /^(.+?)([^s])s$/;
+
+    if (re.test(w))
+      w = w.replace(re,"$1$2");
+    else if (re2.test(w))
+      w = w.replace(re2,"$1$2");
+
+    // Step 1b
+    re = /^(.+?)eed$/;
+    re2 = /^(.+?)(ed|ing)$/;
+    if (re.test(w)) {
+      var fp = re.exec(w);
+      re = new RegExp(mgr0);
+      if (re.test(fp[1])) {
+        re = /.$/;
+        w = w.replace(re,"");
+      }
+    }
+    else if (re2.test(w)) {
+      var fp = re2.exec(w);
+      stem = fp[1];
+      re2 = new RegExp(s_v);
+      if (re2.test(stem)) {
+        w = stem;
+        re2 = /(at|bl|iz)$/;
+        re3 = new RegExp("([^aeiouylsz])\\1$");
+        re4 = new RegExp("^" + C + v + "[^aeiouwxy]$");
+        if (re2.test(w))
+          w = w + "e";
+        else if (re3.test(w)) {
+          re = /.$/;
+          w = w.replace(re,"");
+        }
+        else if (re4.test(w))
+          w = w + "e";
+      }
+    }
+
+    // Step 1c
+    re = /^(.+?)y$/;
+    if (re.test(w)) {
+      var fp = re.exec(w);
+      stem = fp[1];
+      re = new RegExp(s_v);
+      if (re.test(stem))
+        w = stem + "i";
+    }
+
+    // Step 2
+    re = /^(.+?)(ational|tional|enci|anci|izer|bli|alli|entli|eli|ousli|ization|ation|ator|alism|iveness|fulness|ousness|aliti|iviti|biliti|logi)$/;
+    if (re.test(w)) {
+      var fp = re.exec(w);
+      stem = fp[1];
+      suffix = fp[2];
+      re = new RegExp(mgr0);
+      if (re.test(stem))
+        w = stem + step2list[suffix];
+    }
+
+    // Step 3
+    re = /^(.+?)(icate|ative|alize|iciti|ical|ful|ness)$/;
+    if (re.test(w)) {
+      var fp = re.exec(w);
+      stem = fp[1];
+      suffix = fp[2];
+      re = new RegExp(mgr0);
+      if (re.test(stem))
+        w = stem + step3list[suffix];
+    }
+
+    // Step 4
+    re = /^(.+?)(al|ance|ence|er|ic|able|ible|ant|ement|ment|ent|ou|ism|ate|iti|ous|ive|ize)$/;
+    re2 = /^(.+?)(s|t)(ion)$/;
+    if (re.test(w)) {
+      var fp = re.exec(w);
+      stem = fp[1];
+      re = new RegExp(mgr1);
+      if (re.test(stem))
+        w = stem;
+    }
+    else if (re2.test(w)) {
+      var fp = re2.exec(w);
+      stem = fp[1] + fp[2];
+      re2 = new RegExp(mgr1);
+      if (re2.test(stem))
+        w = stem;
+    }
+
+    // Step 5
+    re = /^(.+?)e$/;
+    if (re.test(w)) {
+      var fp = re.exec(w);
+      stem = fp[1];
+      re = new RegExp(mgr1);
+      re2 = new RegExp(meq1);
+      re3 = new RegExp("^" + C + v + "[^aeiouwxy]$");
+      if (re.test(stem) || (re2.test(stem) && !(re3.test(stem))))
+        w = stem;
+    }
+    re = /ll$/;
+    re2 = new RegExp(mgr1);
+    if (re.test(w) && re2.test(w)) {
+      re = /.$/;
+      w = w.replace(re,"");
+    }
+
+    // and turn initial Y back to y
+    if (firstch == "y")
+      w = firstch.toLowerCase() + w.substr(1);
+    return w;
+  }
+}
+
+
+
+/**
+ * Simple result scoring code.
+ */
+var Scorer = {
+  // Implement the following function to further tweak the score for each result
+  // The function takes a result array [filename, title, anchor, descr, score]
+  // and returns the new score.
+  /*
+  score: function(result) {
+    return result[4];
+  },
+  */
+
+  // query matches the full name of an object
+  objNameMatch: 11,
+  // or matches in the last dotted part of the object name
+  objPartialMatch: 6,
+  // Additive scores depending on the priority of the object
+  objPrio: {0:  15,   // used to be importantResults
+            1:  5,   // used to be objectResults
+            2: -5},  // used to be unimportantResults
+  //  Used when the priority is not in the mapping.
+  objPrioDefault: 0,
+
+  // query found in title
+  title: 15,
+  // query found in terms
+  term: 5
+};
+
+
+/**
+ * Search Module
+ */
+var Search = {
+
+  _index : null,
+  _queued_query : null,
+  _pulse_status : -1,
+
+  init : function() {
+      var params = $.getQueryParameters();
+      if (params.q) {
+          var query = params.q[0];
+          $('input[name="q"]')[0].value = query;
+          this.performSearch(query);
+      }
+  },
+
+  loadIndex : function(url) {
+    $.ajax({type: "GET", url: url, data: null,
+            dataType: "script", cache: true,
+            complete: function(jqxhr, textstatus) {
+              if (textstatus != "success") {
+                document.getElementById("searchindexloader").src = url;
+              }
+            }});
+  },
+
+  setIndex : function(index) {
+    var q;
+    this._index = index;
+    if ((q = this._queued_query) !== null) {
+      this._queued_query = null;
+      Search.query(q);
+    }
+  },
+
+  hasIndex : function() {
+      return this._index !== null;
+  },
+
+  deferQuery : function(query) {
+      this._queued_query = query;
+  },
+
+  stopPulse : function() {
+      this._pulse_status = 0;
+  },
+
+  startPulse : function() {
+    if (this._pulse_status >= 0)
+        return;
+    function pulse() {
+      var i;
+      Search._pulse_status = (Search._pulse_status + 1) % 4;
+      var dotString = '';
+      for (i = 0; i < Search._pulse_status; i++)
+        dotString += '.';
+      Search.dots.text(dotString);
+      if (Search._pulse_status > -1)
+        window.setTimeout(pulse, 500);
+    }
+    pulse();
+  },
+
+  /**
+   * perform a search for something (or wait until index is loaded)
+   */
+  performSearch : function(query) {
+    // create the required interface elements
+    this.out = $('#search-results');
+    this.title = $('<h2>' + _('Searching') + '</h2>').appendTo(this.out);
+    this.dots = $('<span></span>').appendTo(this.title);
+    this.status = $('<p style="display: none"></p>').appendTo(this.out);
+    this.output = $('<ul class="search"/>').appendTo(this.out);
+
+    $('#search-progress').text(_('Preparing search...'));
+    this.startPulse();
+
+    // index already loaded, the browser was quick!
+    if (this.hasIndex())
+      this.query(query);
+    else
+      this.deferQuery(query);
+  },
+
+  /**
+   * execute search (requires search index to be loaded)
+   */
+  query : function(query) {
+    var i;
+    var stopwords = ["a","and","are","as","at","be","but","by","for","if","in","into","is","it","near","no","not","of","on","or","such","that","the","their","then","there","these","they","this","to","was","will","with"];
+
+    // stem the searchterms and add them to the correct list
+    var stemmer = new Stemmer();
+    var searchterms = [];
+    var excluded = [];
+    var hlterms = [];
+    var tmp = query.split(/\s+/);
+    var objectterms = [];
+    for (i = 0; i < tmp.length; i++) {
+      if (tmp[i] !== "") {
+          objectterms.push(tmp[i].toLowerCase());
+      }
+
+      if ($u.indexOf(stopwords, tmp[i].toLowerCase()) != -1 || tmp[i].match(/^\d+$/) ||
+          tmp[i] === "") {
+        // skip this "word"
+        continue;
+      }
+      // stem the word
+      var word = stemmer.stemWord(tmp[i].toLowerCase());
+      var toAppend;
+      // select the correct list
+      if (word[0] == '-') {
+        toAppend = excluded;
+        word = word.substr(1);
+      }
+      else {
+        toAppend = searchterms;
+        hlterms.push(tmp[i].toLowerCase());
+      }
+      // only add if not already in the list
+      if (!$u.contains(toAppend, word))
+        toAppend.push(word);
+    }
+    var highlightstring = '?highlight=' + $.urlencode(hlterms.join(" "));
+
+    // console.debug('SEARCH: searching for:');
+    // console.info('required: ', searchterms);
+    // console.info('excluded: ', excluded);
+
+    // prepare search
+    var terms = this._index.terms;
+    var titleterms = this._index.titleterms;
+
+    // array of [filename, title, anchor, descr, score]
+    var results = [];
+    $('#search-progress').empty();
+
+    // lookup as object
+    for (i = 0; i < objectterms.length; i++) {
+      var others = [].concat(objectterms.slice(0, i),
+                             objectterms.slice(i+1, objectterms.length));
+      results = results.concat(this.performObjectSearch(objectterms[i], others));
+    }
+
+    // lookup as search terms in fulltext
+    results = results.concat(this.performTermsSearch(searchterms, excluded, terms, Scorer.term))
+                     .concat(this.performTermsSearch(searchterms, excluded, titleterms, Scorer.title));
+
+    // let the scorer override scores with a custom scoring function
+    if (Scorer.score) {
+      for (i = 0; i < results.length; i++)
+        results[i][4] = Scorer.score(results[i]);
+    }
+
+    // now sort the results by score (in opposite order of appearance, since the
+    // display function below uses pop() to retrieve items) and then
+    // alphabetically
+    results.sort(function(a, b) {
+      var left = a[4];
+      var right = b[4];
+      if (left > right) {
+        return 1;
+      } else if (left < right) {
+        return -1;
+      } else {
+        // same score: sort alphabetically
+        left = a[1].toLowerCase();
+        right = b[1].toLowerCase();
+        return (left > right) ? -1 : ((left < right) ? 1 : 0);
+      }
+    });
+
+    // for debugging
+    //Search.lastresults = results.slice();  // a copy
+    //console.info('search results:', Search.lastresults);
+
+    // print the results
+    var resultCount = results.length;
+    function displayNextItem() {
+      // results left, load the summary and display it
+      if (results.length) {
+        var item = results.pop();
+        var listItem = $('<li style="display:none"></li>');
+        if (DOCUMENTATION_OPTIONS.FILE_SUFFIX === '') {
+          // dirhtml builder
+          var dirname = item[0] + '/';
+          if (dirname.match(/\/index\/$/)) {
+            dirname = dirname.substring(0, dirname.length-6);
+          } else if (dirname == 'index/') {
+            dirname = '';
+          }
+          listItem.append($('<a/>').attr('href',
+            DOCUMENTATION_OPTIONS.URL_ROOT + dirname +
+            highlightstring + item[2]).html(item[1]));
+        } else {
+          // normal html builders
+          listItem.append($('<a/>').attr('href',
+            item[0] + DOCUMENTATION_OPTIONS.FILE_SUFFIX +
+            highlightstring + item[2]).html(item[1]));
+        }
+        if (item[3]) {
+          listItem.append($('<span> (' + item[3] + ')</span>'));
+          Search.output.append(listItem);
+          listItem.slideDown(5, function() {
+            displayNextItem();
+          });
+        } else if (DOCUMENTATION_OPTIONS.HAS_SOURCE) {
+          $.ajax({url: DOCUMENTATION_OPTIONS.URL_ROOT + '_sources/' + item[0] + '.txt',
+                  dataType: "text",
+                  complete: function(jqxhr, textstatus) {
+                    var data = jqxhr.responseText;
+                    if (data !== '') {
+                      listItem.append(Search.makeSearchSummary(data, searchterms, hlterms));
+                    }
+                    Search.output.append(listItem);
+                    listItem.slideDown(5, function() {
+                      displayNextItem();
+                    });
+                  }});
+        } else {
+          // no source available, just display title
+          Search.output.append(listItem);
+          listItem.slideDown(5, function() {
+            displayNextItem();
+          });
+        }
+      }
+      // search finished, update title and status message
+      else {
+        Search.stopPulse();
+        Search.title.text(_('Search Results'));
+        if (!resultCount)
+          Search.status.text(_('Your search did not match any documents. Please make sure that all words are spelled correctly and that you\'ve selected enough categories.'));
+        else
+            Search.status.text(_('Search finished, found %s page(s) matching the search query.').replace('%s', resultCount));
+        Search.status.fadeIn(500);
+      }
+    }
+    displayNextItem();
+  },
+
+  /**
+   * search for object names
+   */
+  performObjectSearch : function(object, otherterms) {
+    var filenames = this._index.filenames;
+    var objects = this._index.objects;
+    var objnames = this._index.objnames;
+    var titles = this._index.titles;
+
+    var i;
+    var results = [];
+
+    for (var prefix in objects) {
+      for (var name in objects[prefix]) {
+        var fullname = (prefix ? prefix + '.' : '') + name;
+        if (fullname.toLowerCase().indexOf(object) > -1) {
+          var score = 0;
+          var parts = fullname.split('.');
+          // check for different match types: exact matches of full name or
+          // "last name" (i.e. last dotted part)
+          if (fullname == object || parts[parts.length - 1] == object) {
+            score += Scorer.objNameMatch;
+          // matches in last name
+          } else if (parts[parts.length - 1].indexOf(object) > -1) {
+            score += Scorer.objPartialMatch;
+          }
+          var match = objects[prefix][name];
+          var objname = objnames[match[1]][2];
+          var title = titles[match[0]];
+          // If more than one term searched for, we require other words to be
+          // found in the name/title/description
+          if (otherterms.length > 0) {
+            var haystack = (prefix + ' ' + name + ' ' +
+                            objname + ' ' + title).toLowerCase();
+            var allfound = true;
+            for (i = 0; i < otherterms.length; i++) {
+              if (haystack.indexOf(otherterms[i]) == -1) {
+                allfound = false;
+                break;
+              }
+            }
+            if (!allfound) {
+              continue;
+            }
+          }
+          var descr = objname + _(', in ') + title;
+
+          var anchor = match[3];
+          if (anchor === '')
+            anchor = fullname;
+          else if (anchor == '-')
+            anchor = objnames[match[1]][1] + '-' + fullname;
+          // add custom score for some objects according to scorer
+          if (Scorer.objPrio.hasOwnProperty(match[2])) {
+            score += Scorer.objPrio[match[2]];
+          } else {
+            score += Scorer.objPrioDefault;
+          }
+          results.push([filenames[match[0]], fullname, '#'+anchor, descr, score]);
+        }
+      }
+    }
+
+    return results;
+  },
+
+  /**
+   * search for full-text terms in the index
+   */
+  performTermsSearch : function(searchterms, excluded, terms, score) {
+    var filenames = this._index.filenames;
+    var titles = this._index.titles;
+
+    var i, j, file, files;
+    var fileMap = {};
+    var results = [];
+
+    // perform the search on the required terms
+    for (i = 0; i < searchterms.length; i++) {
+      var word = searchterms[i];
+      // no match but word was a required one
+      if ((files = terms[word]) === undefined)
+        break;
+      if (files.length === undefined) {
+        files = [files];
+      }
+      // create the mapping
+      for (j = 0; j < files.length; j++) {
+        file = files[j];
+        if (file in fileMap)
+          fileMap[file].push(word);
+        else
+          fileMap[file] = [word];
+      }
+    }
+
+    // now check if the files don't contain excluded terms
+    for (file in fileMap) {
+      var valid = true;
+
+      // check if all requirements are matched
+      if (fileMap[file].length != searchterms.length)
+          continue;
+
+      // ensure that none of the excluded terms is in the search result
+      for (i = 0; i < excluded.length; i++) {
+        if (terms[excluded[i]] == file ||
+          $u.contains(terms[excluded[i]] || [], file)) {
+          valid = false;
+          break;
+        }
+      }
+
+      // if we have still a valid result we can add it to the result list
+      if (valid) {
+        results.push([filenames[file], titles[file], '', null, score]);
+      }
+    }
+    return results;
+  },
+
+  /**
+   * helper function to return a node containing the
+   * search summary for a given text. keywords is a list
+   * of stemmed words, hlwords is the list of normal, unstemmed
+   * words. the first one is used to find the occurance, the
+   * latter for highlighting it.
+   */
+  makeSearchSummary : function(text, keywords, hlwords) {
+    var textLower = text.toLowerCase();
+    var start = 0;
+    $.each(keywords, function() {
+      var i = textLower.indexOf(this.toLowerCase());
+      if (i > -1)
+        start = i;
+    });
+    start = Math.max(start - 120, 0);
+    var excerpt = ((start > 0) ? '...' : '') +
+      $.trim(text.substr(start, 240)) +
+      ((start + 240 - text.length) ? '...' : '');
+    var rv = $('<div class="context"></div>').text(excerpt);
+    $.each(hlwords, function() {
+      rv = rv.highlightText(this, 'highlighted');
+    });
+    return rv;
+  }
+};
+
+$(document).ready(function() {
+  Search.init();
+});
\ No newline at end of file
diff --git a/python/docSRC/_build/html/_static/sidebar.js b/python/docSRC/_build/html/_static/sidebar.js
new file mode 100644
index 0000000..4f09a0d
--- /dev/null
+++ b/python/docSRC/_build/html/_static/sidebar.js
@@ -0,0 +1,159 @@
+/*
+ * sidebar.js
+ * ~~~~~~~~~~
+ *
+ * This script makes the Sphinx sidebar collapsible.
+ *
+ * .sphinxsidebar contains .sphinxsidebarwrapper.  This script adds
+ * in .sphixsidebar, after .sphinxsidebarwrapper, the #sidebarbutton
+ * used to collapse and expand the sidebar.
+ *
+ * When the sidebar is collapsed the .sphinxsidebarwrapper is hidden
+ * and the width of the sidebar and the margin-left of the document
+ * are decreased. When the sidebar is expanded the opposite happens.
+ * This script saves a per-browser/per-session cookie used to
+ * remember the position of the sidebar among the pages.
+ * Once the browser is closed the cookie is deleted and the position
+ * reset to the default (expanded).
+ *
+ * :copyright: Copyright 2007-2014 by the Sphinx team, see AUTHORS.
+ * :license: BSD, see LICENSE for details.
+ *
+ */
+
+$(function() {
+  
+  
+  
+  
+  
+  
+  
+
+  // global elements used by the functions.
+  // the 'sidebarbutton' element is defined as global after its
+  // creation, in the add_sidebar_button function
+  var bodywrapper = $('.bodywrapper');
+  var sidebar = $('.sphinxsidebar');
+  var sidebarwrapper = $('.sphinxsidebarwrapper');
+
+  // for some reason, the document has no sidebar; do not run into errors
+  if (!sidebar.length) return;
+
+  // original margin-left of the bodywrapper and width of the sidebar
+  // with the sidebar expanded
+  var bw_margin_expanded = bodywrapper.css('margin-left');
+  var ssb_width_expanded = sidebar.width();
+
+  // margin-left of the bodywrapper and width of the sidebar
+  // with the sidebar collapsed
+  var bw_margin_collapsed = '.8em';
+  var ssb_width_collapsed = '.8em';
+
+  // colors used by the current theme
+  var dark_color = $('.related').css('background-color');
+  var light_color = $('.document').css('background-color');
+
+  function sidebar_is_collapsed() {
+    return sidebarwrapper.is(':not(:visible)');
+  }
+
+  function toggle_sidebar() {
+    if (sidebar_is_collapsed())
+      expand_sidebar();
+    else
+      collapse_sidebar();
+  }
+
+  function collapse_sidebar() {
+    sidebarwrapper.hide();
+    sidebar.css('width', ssb_width_collapsed);
+    bodywrapper.css('margin-left', bw_margin_collapsed);
+    sidebarbutton.css({
+        'margin-left': '0',
+        'height': bodywrapper.height()
+    });
+    sidebarbutton.find('span').text('»');
+    sidebarbutton.attr('title', _('Expand sidebar'));
+    document.cookie = 'sidebar=collapsed';
+  }
+
+  function expand_sidebar() {
+    bodywrapper.css('margin-left', bw_margin_expanded);
+    sidebar.css('width', ssb_width_expanded);
+    sidebarwrapper.show();
+    sidebarbutton.css({
+        'margin-left': ssb_width_expanded-12,
+        'height': bodywrapper.height()
+    });
+    sidebarbutton.find('span').text('«');
+    sidebarbutton.attr('title', _('Collapse sidebar'));
+    document.cookie = 'sidebar=expanded';
+  }
+
+  function add_sidebar_button() {
+    sidebarwrapper.css({
+        'float': 'left',
+        'margin-right': '0',
+        'width': ssb_width_expanded - 28
+    });
+    // create the button
+    sidebar.append(
+        '<div id="sidebarbutton"><span>&laquo;</span></div>'
+    );
+    var sidebarbutton = $('#sidebarbutton');
+    light_color = sidebarbutton.css('background-color');
+    // find the height of the viewport to center the '<<' in the page
+    var viewport_height;
+    if (window.innerHeight)
+ 	  viewport_height = window.innerHeight;
+    else
+	  viewport_height = $(window).height();
+    sidebarbutton.find('span').css({
+        'display': 'block',
+        'margin-top': (viewport_height - sidebar.position().top - 20) / 2
+    });
+
+    sidebarbutton.click(toggle_sidebar);
+    sidebarbutton.attr('title', _('Collapse sidebar'));
+    sidebarbutton.css({
+        'color': '#FFFFFF',
+        'border-left': '1px solid ' + dark_color,
+        'font-size': '1.2em',
+        'cursor': 'pointer',
+        'height': bodywrapper.height(),
+        'padding-top': '1px',
+        'margin-left': ssb_width_expanded - 12
+    });
+
+    sidebarbutton.hover(
+      function () {
+          $(this).css('background-color', dark_color);
+      },
+      function () {
+          $(this).css('background-color', light_color);
+      }
+    );
+  }
+
+  function set_position_from_cookie() {
+    if (!document.cookie)
+      return;
+    var items = document.cookie.split(';');
+    for(var k=0; k<items.length; k++) {
+      var key_val = items[k].split('=');
+      var key = key_val[0].replace(/ /, "");  // strip leading spaces
+      if (key == 'sidebar') {
+        var value = key_val[1];
+        if ((value == 'collapsed') && (!sidebar_is_collapsed()))
+          collapse_sidebar();
+        else if ((value == 'expanded') && (sidebar_is_collapsed()))
+          expand_sidebar();
+      }
+    }
+  }
+
+  add_sidebar_button();
+  var sidebarbutton = $('#sidebarbutton');
+  set_position_from_cookie();
+});
\ No newline at end of file
diff --git a/python/docSRC/_build/html/_static/underscore.js b/python/docSRC/_build/html/_static/underscore.js
new file mode 100644
index 0000000..5b55f32
--- /dev/null
+++ b/python/docSRC/_build/html/_static/underscore.js
@@ -0,0 +1,31 @@
+// Underscore.js 1.3.1
+// (c) 2009-2012 Jeremy Ashkenas, DocumentCloud Inc.
+// Underscore is freely distributable under the MIT license.
+// Portions of Underscore are inspired or borrowed from Prototype,
+// Oliver Steele's Functional, and John Resig's Micro-Templating.
+// For all details and documentation:
+// http://documentcloud.github.com/underscore
+(function(){function q(a,c,d){if(a===c)return a!==0||1/a==1/c;if(a==null||c==null)return a===c;if(a._chain)a=a._wrapped;if(c._chain)c=c._wrapped;if(a.isEqual&&b.isFunction(a.isEqual))return a.isEqual(c);if(c.isEqual&&b.isFunction(c.isEqual))return c.isEqual(a);var e=l.call(a);if(e!=l.call(c))return false;switch(e){case "[object String]":return a==String(c);case "[object Number]":return a!=+a?c!=+c:a==0?1/a==1/c:a==+c;case "[object Date]":case "[object Boolean]":return+a==+c;case "[object RegExp]":return a.source==
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+b.isArguments=function(a){return l.call(a)=="[object Arguments]"};if(!b.isArguments(arguments))b.isArguments=function(a){return!(!a||!b.has(a,"callee"))};b.isFunction=function(a){return l.call(a)=="[object Function]"};b.isString=function(a){return l.call(a)=="[object String]"};b.isNumber=function(a){return l.call(a)=="[object Number]"};b.isNaN=function(a){return a!==a};b.isBoolean=function(a){return a===true||a===false||l.call(a)=="[object Boolean]"};b.isDate=function(a){return l.call(a)=="[object Date]"};
+b.isRegExp=function(a){return l.call(a)=="[object RegExp]"};b.isNull=function(a){return a===null};b.isUndefined=function(a){return a===void 0};b.has=function(a,b){return I.call(a,b)};b.noConflict=function(){r._=G;return this};b.identity=function(a){return a};b.times=function(a,b,d){for(var e=0;e<a;e++)b.call(d,e)};b.escape=function(a){return(""+a).replace(/&/g,"&amp;").replace(/</g,"&lt;").replace(/>/g,"&gt;").replace(/"/g,"&quot;").replace(/'/g,"&#x27;").replace(/\//g,"&#x2F;")};b.mixin=function(a){j(b.functions(a),
+function(c){K(c,b[c]=a[c])})};var L=0;b.uniqueId=function(a){var b=L++;return a?a+b:b};b.templateSettings={evaluate:/<%([\s\S]+?)%>/g,interpolate:/<%=([\s\S]+?)%>/g,escape:/<%-([\s\S]+?)%>/g};var t=/.^/,u=function(a){return a.replace(/\\\\/g,"\\").replace(/\\'/g,"'")};b.template=function(a,c){var d=b.templateSettings,d="var __p=[],print=function(){__p.push.apply(__p,arguments);};with(obj||{}){__p.push('"+a.replace(/\\/g,"\\\\").replace(/'/g,"\\'").replace(d.escape||t,function(a,b){return"',_.escape("+
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+function(){var a=i.call(arguments);H.call(a,this._wrapped);return v(c.apply(b,a),this._chain)}};b.mixin(b);j("pop,push,reverse,shift,sort,splice,unshift".split(","),function(a){var b=k[a];m.prototype[a]=function(){var d=this._wrapped;b.apply(d,arguments);var e=d.length;(a=="shift"||a=="splice")&&e===0&&delete d[0];return v(d,this._chain)}});j(["concat","join","slice"],function(a){var b=k[a];m.prototype[a]=function(){return v(b.apply(this._wrapped,arguments),this._chain)}});m.prototype.chain=function(){this._chain=
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diff --git a/python/docSRC/_build/html/_static/up-pressed.png b/python/docSRC/_build/html/_static/up-pressed.png
new file mode 100644
index 0000000..8bd587a
--- /dev/null
+++ b/python/docSRC/_build/html/_static/up-pressed.png
diff --git a/python/docSRC/_build/html/_static/up.png b/python/docSRC/_build/html/_static/up.png
new file mode 100644
index 0000000..b946256
--- /dev/null
+++ b/python/docSRC/_build/html/_static/up.png
diff --git a/python/docSRC/_build/html/_static/websupport.js b/python/docSRC/_build/html/_static/websupport.js
new file mode 100644
index 0000000..71c0a13
--- /dev/null
+++ b/python/docSRC/_build/html/_static/websupport.js
@@ -0,0 +1,808 @@
+/*
+ * websupport.js
+ * ~~~~~~~~~~~~~
+ *
+ * sphinx.websupport utilties for all documentation.
+ *
+ * :copyright: Copyright 2007-2014 by the Sphinx team, see AUTHORS.
+ * :license: BSD, see LICENSE for details.
+ *
+ */
+
+(function($) {
+  $.fn.autogrow = function() {
+    return this.each(function() {
+    var textarea = this;
+
+    $.fn.autogrow.resize(textarea);
+
+    $(textarea)
+      .focus(function() {
+        textarea.interval = setInterval(function() {
+          $.fn.autogrow.resize(textarea);
+        }, 500);
+      })
+      .blur(function() {
+        clearInterval(textarea.interval);
+      });
+    });
+  };
+
+  $.fn.autogrow.resize = function(textarea) {
+    var lineHeight = parseInt($(textarea).css('line-height'), 10);
+    var lines = textarea.value.split('\n');
+    var columns = textarea.cols;
+    var lineCount = 0;
+    $.each(lines, function() {
+      lineCount += Math.ceil(this.length / columns) || 1;
+    });
+    var height = lineHeight * (lineCount + 1);
+    $(textarea).css('height', height);
+  };
+})(jQuery);
+
+(function($) {
+  var comp, by;
+
+  function init() {
+    initEvents();
+    initComparator();
+  }
+
+  function initEvents() {
+    $('a.comment-close').live("click", function(event) {
+      event.preventDefault();
+      hide($(this).attr('id').substring(2));
+    });
+    $('a.vote').live("click", function(event) {
+      event.preventDefault();
+      handleVote($(this));
+    });
+    $('a.reply').live("click", function(event) {
+      event.preventDefault();
+      openReply($(this).attr('id').substring(2));
+    });
+    $('a.close-reply').live("click", function(event) {
+      event.preventDefault();
+      closeReply($(this).attr('id').substring(2));
+    });
+    $('a.sort-option').live("click", function(event) {
+      event.preventDefault();
+      handleReSort($(this));
+    });
+    $('a.show-proposal').live("click", function(event) {
+      event.preventDefault();
+      showProposal($(this).attr('id').substring(2));
+    });
+    $('a.hide-proposal').live("click", function(event) {
+      event.preventDefault();
+      hideProposal($(this).attr('id').substring(2));
+    });
+    $('a.show-propose-change').live("click", function(event) {
+      event.preventDefault();
+      showProposeChange($(this).attr('id').substring(2));
+    });
+    $('a.hide-propose-change').live("click", function(event) {
+      event.preventDefault();
+      hideProposeChange($(this).attr('id').substring(2));
+    });
+    $('a.accept-comment').live("click", function(event) {
+      event.preventDefault();
+      acceptComment($(this).attr('id').substring(2));
+    });
+    $('a.delete-comment').live("click", function(event) {
+      event.preventDefault();
+      deleteComment($(this).attr('id').substring(2));
+    });
+    $('a.comment-markup').live("click", function(event) {
+      event.preventDefault();
+      toggleCommentMarkupBox($(this).attr('id').substring(2));
+    });
+  }
+
+  /**
+   * Set comp, which is a comparator function used for sorting and
+   * inserting comments into the list.
+   */
+  function setComparator() {
+    // If the first three letters are "asc", sort in ascending order
+    // and remove the prefix.
+    if (by.substring(0,3) == 'asc') {
+      var i = by.substring(3);
+      comp = function(a, b) { return a[i] - b[i]; };
+    } else {
+      // Otherwise sort in descending order.
+      comp = function(a, b) { return b[by] - a[by]; };
+    }
+
+    // Reset link styles and format the selected sort option.
+    $('a.sel').attr('href', '#').removeClass('sel');
+    $('a.by' + by).removeAttr('href').addClass('sel');
+  }
+
+  /**
+   * Create a comp function. If the user has preferences stored in
+   * the sortBy cookie, use those, otherwise use the default.
+   */
+  function initComparator() {
+    by = 'rating'; // Default to sort by rating.
+    // If the sortBy cookie is set, use that instead.
+    if (document.cookie.length > 0) {
+      var start = document.cookie.indexOf('sortBy=');
+      if (start != -1) {
+        start = start + 7;
+        var end = document.cookie.indexOf(";", start);
+        if (end == -1) {
+          end = document.cookie.length;
+          by = unescape(document.cookie.substring(start, end));
+        }
+      }
+    }
+    setComparator();
+  }
+
+  /**
+   * Show a comment div.
+   */
+  function show(id) {
+    $('#ao' + id).hide();
+    $('#ah' + id).show();
+    var context = $.extend({id: id}, opts);
+    var popup = $(renderTemplate(popupTemplate, context)).hide();
+    popup.find('textarea[name="proposal"]').hide();
+    popup.find('a.by' + by).addClass('sel');
+    var form = popup.find('#cf' + id);
+    form.submit(function(event) {
+      event.preventDefault();
+      addComment(form);
+    });
+    $('#s' + id).after(popup);
+    popup.slideDown('fast', function() {
+      getComments(id);
+    });
+  }
+
+  /**
+   * Hide a comment div.
+   */
+  function hide(id) {
+    $('#ah' + id).hide();
+    $('#ao' + id).show();
+    var div = $('#sc' + id);
+    div.slideUp('fast', function() {
+      div.remove();
+    });
+  }
+
+  /**
+   * Perform an ajax request to get comments for a node
+   * and insert the comments into the comments tree.
+   */
+  function getComments(id) {
+    $.ajax({
+     type: 'GET',
+     url: opts.getCommentsURL,
+     data: {node: id},
+     success: function(data, textStatus, request) {
+       var ul = $('#cl' + id);
+       var speed = 100;
+       $('#cf' + id)
+         .find('textarea[name="proposal"]')
+         .data('source', data.source);
+
+       if (data.comments.length === 0) {
+         ul.html('<li>No comments yet.</li>');
+         ul.data('empty', true);
+       } else {
+         // If there are comments, sort them and put them in the list.
+         var comments = sortComments(data.comments);
+         speed = data.comments.length * 100;
+         appendComments(comments, ul);
+         ul.data('empty', false);
+       }
+       $('#cn' + id).slideUp(speed + 200);
+       ul.slideDown(speed);
+     },
+     error: function(request, textStatus, error) {
+       showError('Oops, there was a problem retrieving the comments.');
+     },
+     dataType: 'json'
+    });
+  }
+
+  /**
+   * Add a comment via ajax and insert the comment into the comment tree.
+   */
+  function addComment(form) {
+    var node_id = form.find('input[name="node"]').val();
+    var parent_id = form.find('input[name="parent"]').val();
+    var text = form.find('textarea[name="comment"]').val();
+    var proposal = form.find('textarea[name="proposal"]').val();
+
+    if (text == '') {
+      showError('Please enter a comment.');
+      return;
+    }
+
+    // Disable the form that is being submitted.
+    form.find('textarea,input').attr('disabled', 'disabled');
+
+    // Send the comment to the server.
+    $.ajax({
+      type: "POST",
+      url: opts.addCommentURL,
+      dataType: 'json',
+      data: {
+        node: node_id,
+        parent: parent_id,
+        text: text,
+        proposal: proposal
+      },
+      success: function(data, textStatus, error) {
+        // Reset the form.
+        if (node_id) {
+          hideProposeChange(node_id);
+        }
+        form.find('textarea')
+          .val('')
+          .add(form.find('input'))
+          .removeAttr('disabled');
+	var ul = $('#cl' + (node_id || parent_id));
+        if (ul.data('empty')) {
+          $(ul).empty();
+          ul.data('empty', false);
+        }
+        insertComment(data.comment);
+        var ao = $('#ao' + node_id);
+        ao.find('img').attr({'src': opts.commentBrightImage});
+        if (node_id) {
+          // if this was a "root" comment, remove the commenting box
+          // (the user can get it back by reopening the comment popup)
+          $('#ca' + node_id).slideUp();
+        }
+      },
+      error: function(request, textStatus, error) {
+        form.find('textarea,input').removeAttr('disabled');
+        showError('Oops, there was a problem adding the comment.');
+      }
+    });
+  }
+
+  /**
+   * Recursively append comments to the main comment list and children
+   * lists, creating the comment tree.
+   */
+  function appendComments(comments, ul) {
+    $.each(comments, function() {
+      var div = createCommentDiv(this);
+      ul.append($(document.createElement('li')).html(div));
+      appendComments(this.children, div.find('ul.comment-children'));
+      // To avoid stagnating data, don't store the comments children in data.
+      this.children = null;
+      div.data('comment', this);
+    });
+  }
+
+  /**
+   * After adding a new comment, it must be inserted in the correct
+   * location in the comment tree.
+   */
+  function insertComment(comment) {
+    var div = createCommentDiv(comment);
+
+    // To avoid stagnating data, don't store the comments children in data.
+    comment.children = null;
+    div.data('comment', comment);
+
+    var ul = $('#cl' + (comment.node || comment.parent));
+    var siblings = getChildren(ul);
+
+    var li = $(document.createElement('li'));
+    li.hide();
+
+    // Determine where in the parents children list to insert this comment.
+    for(i=0; i < siblings.length; i++) {
+      if (comp(comment, siblings[i]) <= 0) {
+        $('#cd' + siblings[i].id)
+          .parent()
+          .before(li.html(div));
+        li.slideDown('fast');
+        return;
+      }
+    }
+
+    // If we get here, this comment rates lower than all the others,
+    // or it is the only comment in the list.
+    ul.append(li.html(div));
+    li.slideDown('fast');
+  }
+
+  function acceptComment(id) {
+    $.ajax({
+      type: 'POST',
+      url: opts.acceptCommentURL,
+      data: {id: id},
+      success: function(data, textStatus, request) {
+        $('#cm' + id).fadeOut('fast');
+        $('#cd' + id).removeClass('moderate');
+      },
+      error: function(request, textStatus, error) {
+        showError('Oops, there was a problem accepting the comment.');
+      }
+    });
+  }
+
+  function deleteComment(id) {
+    $.ajax({
+      type: 'POST',
+      url: opts.deleteCommentURL,
+      data: {id: id},
+      success: function(data, textStatus, request) {
+        var div = $('#cd' + id);
+        if (data == 'delete') {
+          // Moderator mode: remove the comment and all children immediately
+          div.slideUp('fast', function() {
+            div.remove();
+          });
+          return;
+        }
+        // User mode: only mark the comment as deleted
+        div
+          .find('span.user-id:first')
+          .text('[deleted]').end()
+          .find('div.comment-text:first')
+          .text('[deleted]').end()
+          .find('#cm' + id + ', #dc' + id + ', #ac' + id + ', #rc' + id +
+                ', #sp' + id + ', #hp' + id + ', #cr' + id + ', #rl' + id)
+          .remove();
+        var comment = div.data('comment');
+        comment.username = '[deleted]';
+        comment.text = '[deleted]';
+        div.data('comment', comment);
+      },
+      error: function(request, textStatus, error) {
+        showError('Oops, there was a problem deleting the comment.');
+      }
+    });
+  }
+
+  function showProposal(id) {
+    $('#sp' + id).hide();
+    $('#hp' + id).show();
+    $('#pr' + id).slideDown('fast');
+  }
+
+  function hideProposal(id) {
+    $('#hp' + id).hide();
+    $('#sp' + id).show();
+    $('#pr' + id).slideUp('fast');
+  }
+
+  function showProposeChange(id) {
+    $('#pc' + id).hide();
+    $('#hc' + id).show();
+    var textarea = $('#pt' + id);
+    textarea.val(textarea.data('source'));
+    $.fn.autogrow.resize(textarea[0]);
+    textarea.slideDown('fast');
+  }
+
+  function hideProposeChange(id) {
+    $('#hc' + id).hide();
+    $('#pc' + id).show();
+    var textarea = $('#pt' + id);
+    textarea.val('').removeAttr('disabled');
+    textarea.slideUp('fast');
+  }
+
+  function toggleCommentMarkupBox(id) {
+    $('#mb' + id).toggle();
+  }
+
+  /** Handle when the user clicks on a sort by link. */
+  function handleReSort(link) {
+    var classes = link.attr('class').split(/\s+/);
+    for (var i=0; i<classes.length; i++) {
+      if (classes[i] != 'sort-option') {
+	by = classes[i].substring(2);
+      }
+    }
+    setComparator();
+    // Save/update the sortBy cookie.
+    var expiration = new Date();
+    expiration.setDate(expiration.getDate() + 365);
+    document.cookie= 'sortBy=' + escape(by) +
+                     ';expires=' + expiration.toUTCString();
+    $('ul.comment-ul').each(function(index, ul) {
+      var comments = getChildren($(ul), true);
+      comments = sortComments(comments);
+      appendComments(comments, $(ul).empty());
+    });
+  }
+
+  /**
+   * Function to process a vote when a user clicks an arrow.
+   */
+  function handleVote(link) {
+    if (!opts.voting) {
+      showError("You'll need to login to vote.");
+      return;
+    }
+
+    var id = link.attr('id');
+    if (!id) {
+      // Didn't click on one of the voting arrows.
+      return;
+    }
+    // If it is an unvote, the new vote value is 0,
+    // Otherwise it's 1 for an upvote, or -1 for a downvote.
+    var value = 0;
+    if (id.charAt(1) != 'u') {
+      value = id.charAt(0) == 'u' ? 1 : -1;
+    }
+    // The data to be sent to the server.
+    var d = {
+      comment_id: id.substring(2),
+      value: value
+    };
+
+    // Swap the vote and unvote links.
+    link.hide();
+    $('#' + id.charAt(0) + (id.charAt(1) == 'u' ? 'v' : 'u') + d.comment_id)
+      .show();
+
+    // The div the comment is displayed in.
+    var div = $('div#cd' + d.comment_id);
+    var data = div.data('comment');
+
+    // If this is not an unvote, and the other vote arrow has
+    // already been pressed, unpress it.
+    if ((d.value !== 0) && (data.vote === d.value * -1)) {
+      $('#' + (d.value == 1 ? 'd' : 'u') + 'u' + d.comment_id).hide();
+      $('#' + (d.value == 1 ? 'd' : 'u') + 'v' + d.comment_id).show();
+    }
+
+    // Update the comments rating in the local data.
+    data.rating += (data.vote === 0) ? d.value : (d.value - data.vote);
+    data.vote = d.value;
+    div.data('comment', data);
+
+    // Change the rating text.
+    div.find('.rating:first')
+      .text(data.rating + ' point' + (data.rating == 1 ? '' : 's'));
+
+    // Send the vote information to the server.
+    $.ajax({
+      type: "POST",
+      url: opts.processVoteURL,
+      data: d,
+      error: function(request, textStatus, error) {
+        showError('Oops, there was a problem casting that vote.');
+      }
+    });
+  }
+
+  /**
+   * Open a reply form used to reply to an existing comment.
+   */
+  function openReply(id) {
+    // Swap out the reply link for the hide link
+    $('#rl' + id).hide();
+    $('#cr' + id).show();
+
+    // Add the reply li to the children ul.
+    var div = $(renderTemplate(replyTemplate, {id: id})).hide();
+    $('#cl' + id)
+      .prepend(div)
+      // Setup the submit handler for the reply form.
+      .find('#rf' + id)
+      .submit(function(event) {
+        event.preventDefault();
+        addComment($('#rf' + id));
+        closeReply(id);
+      })
+      .find('input[type=button]')
+      .click(function() {
+        closeReply(id);
+      });
+    div.slideDown('fast', function() {
+      $('#rf' + id).find('textarea').focus();
+    });
+  }
+
+  /**
+   * Close the reply form opened with openReply.
+   */
+  function closeReply(id) {
+    // Remove the reply div from the DOM.
+    $('#rd' + id).slideUp('fast', function() {
+      $(this).remove();
+    });
+
+    // Swap out the hide link for the reply link
+    $('#cr' + id).hide();
+    $('#rl' + id).show();
+  }
+
+  /**
+   * Recursively sort a tree of comments using the comp comparator.
+   */
+  function sortComments(comments) {
+    comments.sort(comp);
+    $.each(comments, function() {
+      this.children = sortComments(this.children);
+    });
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diff --git a/python/docSRC/_build/html/algorithm.html b/python/docSRC/_build/html/algorithm.html
new file mode 100644
index 0000000..bf4b90f
--- /dev/null
+++ b/python/docSRC/_build/html/algorithm.html
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+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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+    <title>Algorithms: the algorithm module &mdash; PyASTRAToolbox 1.6 documentation</title>
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+            
+  <div class="section" id="module-astra.algorithm">
+<span id="algorithms-the-algorithm-module"></span><h1>Algorithms: the <tt class="xref py py-mod docutils literal"><span class="pre">algorithm</span></tt> module<a class="headerlink" href="#module-astra.algorithm" title="Permalink to this headline">¶</a></h1>
+<dl class="function">
+<dt id="astra.algorithm.clear">
+<tt class="descclassname">astra.algorithm.</tt><tt class="descname">clear</tt><big>(</big><big>)</big><a class="reference internal" href="_modules/astra/algorithm.html#clear"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.algorithm.clear" title="Permalink to this definition">¶</a></dt>
+<dd><p>Clear all matrix objects.</p>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.algorithm.create">
+<tt class="descclassname">astra.algorithm.</tt><tt class="descname">create</tt><big>(</big><em>config</em><big>)</big><a class="reference internal" href="_modules/astra/algorithm.html#create"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.algorithm.create" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create algorithm object.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>config</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/stdtypes.html#dict" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">dict</span></tt></a>) &#8211; Algorithm options.</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a> &#8211; the ID of the constructed object.</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.algorithm.delete">
+<tt class="descclassname">astra.algorithm.</tt><tt class="descname">delete</tt><big>(</big><em>ids</em><big>)</big><a class="reference internal" href="_modules/astra/algorithm.html#delete"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.algorithm.delete" title="Permalink to this definition">¶</a></dt>
+<dd><p>Delete a matrix object.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>ids</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a> or <a class="reference external" href="http://docs.python.org/2.7/library/functions.html#list" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">list</span></tt></a>) &#8211; ID or list of ID&#8217;s to delete.</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.algorithm.get_res_norm">
+<tt class="descclassname">astra.algorithm.</tt><tt class="descname">get_res_norm</tt><big>(</big><em>i</em><big>)</big><a class="reference internal" href="_modules/astra/algorithm.html#get_res_norm"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.algorithm.get_res_norm" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get residual norm of algorithm.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>i</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; ID of object.</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><a class="reference external" href="http://docs.python.org/2.7/library/functions.html#float" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">float</span></tt></a> &#8211; The residual norm.</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.algorithm.info">
+<tt class="descclassname">astra.algorithm.</tt><tt class="descname">info</tt><big>(</big><big>)</big><a class="reference internal" href="_modules/astra/algorithm.html#info"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.algorithm.info" title="Permalink to this definition">¶</a></dt>
+<dd><p>Print info on matrix objects in memory.</p>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.algorithm.run">
+<tt class="descclassname">astra.algorithm.</tt><tt class="descname">run</tt><big>(</big><em>i</em>, <em>iterations=1</em><big>)</big><a class="reference internal" href="_modules/astra/algorithm.html#run"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.algorithm.run" title="Permalink to this definition">¶</a></dt>
+<dd><p>Run an algorithm.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first last simple">
+<li><strong>i</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; ID of object.</li>
+<li><strong>iterations</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; Number of iterations to run.</li>
+</ul>
+</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+</div>
+
+
+          </div>
+        </div>
+      </div>
+      <div class="sphinxsidebar">
+        <div class="sphinxsidebarwrapper">
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+  <p class="topless"><a href="projector.html"
+                        title="previous chapter">Projector object: the <tt class="docutils literal"><span class="pre">projector</span></tt> module</a></p>
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+  <p class="topless"><a href="matrix.html"
+                        title="next chapter">Sparse matrices: the <tt class="docutils literal"><span class="pre">matrix</span></tt> module</a></p>
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diff --git a/python/docSRC/_build/html/astra.html b/python/docSRC/_build/html/astra.html
new file mode 100644
index 0000000..42d68b8
--- /dev/null
+++ b/python/docSRC/_build/html/astra.html
@@ -0,0 +1,169 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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+            
+  <div class="section" id="module-astra.astra">
+<span id="additional-astra-methods-the-astra-module"></span><h1>Additional ASTRA methods: the <tt class="xref py py-mod docutils literal"><span class="pre">astra</span></tt> module<a class="headerlink" href="#module-astra.astra" title="Permalink to this headline">¶</a></h1>
+<dl class="function">
+<dt id="astra.astra.credits">
+<tt class="descclassname">astra.astra.</tt><tt class="descname">credits</tt><big>(</big><big>)</big><a class="reference internal" href="_modules/astra/astra.html#credits"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.astra.credits" title="Permalink to this definition">¶</a></dt>
+<dd><p>Print credits of the ASTRA Toolbox.</p>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.astra.set_gpu_index">
+<tt class="descclassname">astra.astra.</tt><tt class="descname">set_gpu_index</tt><big>(</big><em>idx</em><big>)</big><a class="reference internal" href="_modules/astra/astra.html#set_gpu_index"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.astra.set_gpu_index" title="Permalink to this definition">¶</a></dt>
+<dd><p>Set default GPU index to use.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>idx</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; GPU index</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.astra.use_cuda">
+<tt class="descclassname">astra.astra.</tt><tt class="descname">use_cuda</tt><big>(</big><big>)</big><a class="reference internal" href="_modules/astra/astra.html#use_cuda"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.astra.use_cuda" title="Permalink to this definition">¶</a></dt>
+<dd><p>Test if CUDA is enabled.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body"><a class="reference external" href="http://docs.python.org/2.7/library/functions.html#bool" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">bool</span></tt></a> &#8211; <tt class="docutils literal"><span class="pre">True</span></tt> if CUDA is enabled.</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.astra.version">
+<tt class="descclassname">astra.astra.</tt><tt class="descname">version</tt><big>(</big><em>printToScreen=False</em><big>)</big><a class="reference internal" href="_modules/astra/astra.html#version"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.astra.version" title="Permalink to this definition">¶</a></dt>
+<dd><p>Check version of the ASTRA Toolbox.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>printToScreen</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#bool" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">bool</span></tt></a>) &#8211; If <tt class="docutils literal"><span class="pre">True</span></tt>, print version string. If <tt class="docutils literal"><span class="pre">False</span></tt>, return version integer.</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><tt class="xref py py-class docutils literal"><span class="pre">string</span></tt> or <a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a> &#8211; The version string or integer.</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+</div>
+
+
+          </div>
+        </div>
+      </div>
+      <div class="sphinxsidebar">
+        <div class="sphinxsidebarwrapper">
+  <h4>Previous topic</h4>
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+                        title="previous chapter">MATLAB compatibility interface: the <tt class="docutils literal"><span class="pre">matlab</span></tt> module</a></p>
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diff --git a/python/docSRC/_build/html/creators.html b/python/docSRC/_build/html/creators.html
new file mode 100644
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--- /dev/null
+++ b/python/docSRC/_build/html/creators.html
@@ -0,0 +1,520 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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+    <title>Creation of objects: the creators module &mdash; PyASTRAToolbox 1.6 documentation</title>
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+            
+  <div class="section" id="module-astra.creators">
+<span id="creation-of-objects-the-creators-module"></span><h1>Creation of objects: the <tt class="xref py py-mod docutils literal"><span class="pre">creators</span></tt> module<a class="headerlink" href="#module-astra.creators" title="Permalink to this headline">¶</a></h1>
+<dl class="function">
+<dt id="astra.creators.astra_dict">
+<tt class="descclassname">astra.creators.</tt><tt class="descname">astra_dict</tt><big>(</big><em>intype</em><big>)</big><a class="reference internal" href="_modules/astra/creators.html#astra_dict"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.creators.astra_dict" title="Permalink to this definition">¶</a></dt>
+<dd><p>Creates a dict to use with the ASTRA Toolbox.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>intype</strong> (<tt class="xref py py-class docutils literal"><span class="pre">string</span></tt>) &#8211; Type of the ASTRA object.</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><a class="reference external" href="http://docs.python.org/2.7/library/stdtypes.html#dict" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">dict</span></tt></a> &#8211; An ASTRA dict of type <tt class="docutils literal"><span class="pre">intype</span></tt>.</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.creators.create_backprojection">
+<tt class="descclassname">astra.creators.</tt><tt class="descname">create_backprojection</tt><big>(</big><em>data</em>, <em>proj_id</em>, <em>useCUDA=False</em>, <em>returnData=True</em><big>)</big><a class="reference internal" href="_modules/astra/creators.html#create_backprojection"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.creators.create_backprojection" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create a backprojection of a sinogram (2D).</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
+<li><strong>data</strong> (<a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a> or <a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; Sinogram data or ID.</li>
+<li><strong>proj_id</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; ID of the projector to use.</li>
+<li><strong>useCUDA</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#bool" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">bool</span></tt></a>) &#8211; If <tt class="docutils literal"><span class="pre">True</span></tt>, use CUDA for the calculation.</li>
+<li><strong>returnData</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#bool" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">bool</span></tt></a>) &#8211; If False, only return the ID of the backprojection.</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last"><a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a> or (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>, <a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a>) &#8211; If <tt class="docutils literal"><span class="pre">returnData=False</span></tt>, returns the ID of the backprojection. Otherwise, returns a tuple containing the ID of the backprojection and the backprojection itself, in that order.</p>
+</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.creators.create_backprojection3d_gpu">
+<tt class="descclassname">astra.creators.</tt><tt class="descname">create_backprojection3d_gpu</tt><big>(</big><em>data</em>, <em>proj_geom</em>, <em>vol_geom</em>, <em>returnData=True</em><big>)</big><a class="reference internal" href="_modules/astra/creators.html#create_backprojection3d_gpu"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.creators.create_backprojection3d_gpu" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create a backprojection of a sinogram (3D) using CUDA.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
+<li><strong>data</strong> (<a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a> or <a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; Sinogram data or ID.</li>
+<li><strong>proj_geom</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/stdtypes.html#dict" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">dict</span></tt></a>) &#8211; Projection geometry.</li>
+<li><strong>vol_geom</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/stdtypes.html#dict" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">dict</span></tt></a>) &#8211; Volume geometry.</li>
+<li><strong>returnData</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#bool" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">bool</span></tt></a>) &#8211; If False, only return the ID of the backprojection.</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last"><a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a> or (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>, <a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a>) &#8211; If <tt class="docutils literal"><span class="pre">returnData=False</span></tt>, returns the ID of the backprojection. Otherwise, returns a tuple containing the ID of the backprojection and the backprojection itself, in that order.</p>
+</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.creators.create_proj_geom">
+<tt class="descclassname">astra.creators.</tt><tt class="descname">create_proj_geom</tt><big>(</big><em>intype</em>, <em>*args</em><big>)</big><a class="reference internal" href="_modules/astra/creators.html#create_proj_geom"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.creators.create_proj_geom" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create a projection geometry.</p>
+<p>This method can be called in a number of ways:</p>
+<p><tt class="docutils literal"><span class="pre">create_proj_geom('parallel',</span> <span class="pre">detector_spacing,</span> <span class="pre">det_count,</span> <span class="pre">angles)</span></tt>:</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
+<li><strong>detector_spacing</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#float" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">float</span></tt></a>) &#8211; Distance between two adjacent detector pixels.</li>
+<li><strong>det_count</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; Number of detector pixels.</li>
+<li><strong>angles</strong> (<a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a>) &#8211; Array of angles in radians.</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last">A parallel projection geometry.</p>
+</td>
+</tr>
+</tbody>
+</table>
+<p><tt class="docutils literal"><span class="pre">create_proj_geom('fanflat',</span> <span class="pre">det_width,</span> <span class="pre">det_count,</span> <span class="pre">angles,</span> <span class="pre">source_origin,</span> <span class="pre">source_det)</span></tt>:</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
+<li><strong>det_width</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#float" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">float</span></tt></a>) &#8211; Size of a detector pixel.</li>
+<li><strong>det_count</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; Number of detector pixels.</li>
+<li><strong>angles</strong> (<a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a>) &#8211; Array of angles in radians.</li>
+<li><strong>source_origin</strong> &#8211; Position of the source.</li>
+<li><strong>source_det</strong> &#8211; Position of the detector</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last">A fan-beam projection geometry.</p>
+</td>
+</tr>
+</tbody>
+</table>
+<p><tt class="docutils literal"><span class="pre">create_proj_geom('fanflat_vec',</span> <span class="pre">det_count,</span> <span class="pre">V)</span></tt>:</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
+<li><strong>det_count</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; Number of detector pixels.</li>
+<li><strong>V</strong> (<a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a>) &#8211; Vector array.</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last">A fan-beam projection geometry.</p>
+</td>
+</tr>
+</tbody>
+</table>
+<p><tt class="docutils literal"><span class="pre">create_proj_geom('parallel3d',</span> <span class="pre">detector_spacing_x,</span> <span class="pre">detector_spacing_y,</span> <span class="pre">det_row_count,</span> <span class="pre">det_col_count,</span> <span class="pre">angles)</span></tt>:</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
+<li><strong>detector_spacing_*</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#float" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">float</span></tt></a>) &#8211; Distance between two adjacent detector pixels.</li>
+<li><strong>det_row_count</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; Number of detector pixel rows.</li>
+<li><strong>det_col_count</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; Number of detector pixel columns.</li>
+<li><strong>angles</strong> (<a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a>) &#8211; Array of angles in radians.</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last">A parallel projection geometry.</p>
+</td>
+</tr>
+</tbody>
+</table>
+<p><tt class="docutils literal"><span class="pre">create_proj_geom('cone',</span> <span class="pre">detector_spacing_x,</span> <span class="pre">detector_spacing_y,</span> <span class="pre">det_row_count,</span> <span class="pre">det_col_count,</span> <span class="pre">angles,</span> <span class="pre">source_origin,</span> <span class="pre">source_det)</span></tt>:</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
+<li><strong>detector_spacing_*</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#float" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">float</span></tt></a>) &#8211; Distance between two adjacent detector pixels.</li>
+<li><strong>det_row_count</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; Number of detector pixel rows.</li>
+<li><strong>det_col_count</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; Number of detector pixel columns.</li>
+<li><strong>angles</strong> (<a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a>) &#8211; Array of angles in radians.</li>
+<li><strong>source_origin</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#float" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">float</span></tt></a>) &#8211; Distance between point source and origin.</li>
+<li><strong>source_det</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#float" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">float</span></tt></a>) &#8211; Distance between the detector and origin.</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last">A cone-beam projection geometry.</p>
+</td>
+</tr>
+</tbody>
+</table>
+<p><tt class="docutils literal"><span class="pre">create_proj_geom('cone_vec',</span> <span class="pre">det_row_count,</span> <span class="pre">det_col_count,</span> <span class="pre">V)</span></tt>:</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
+<li><strong>det_row_count</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; Number of detector pixel rows.</li>
+<li><strong>det_col_count</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; Number of detector pixel columns.</li>
+<li><strong>V</strong> (<a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a>) &#8211; Vector array.</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last">A cone-beam projection geometry.</p>
+</td>
+</tr>
+</tbody>
+</table>
+<p><tt class="docutils literal"><span class="pre">create_proj_geom('parallel3d_vec',</span> <span class="pre">det_row_count,</span> <span class="pre">det_col_count,</span> <span class="pre">V)</span></tt>:</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
+<li><strong>det_row_count</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; Number of detector pixel rows.</li>
+<li><strong>det_col_count</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; Number of detector pixel columns.</li>
+<li><strong>V</strong> (<a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a>) &#8211; Vector array.</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last">A parallel projection geometry.</p>
+</td>
+</tr>
+</tbody>
+</table>
+<p><tt class="docutils literal"><span class="pre">create_proj_geom('sparse_matrix',</span> <span class="pre">det_width,</span> <span class="pre">det_count,</span> <span class="pre">angles,</span> <span class="pre">matrix_id)</span></tt>:</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
+<li><strong>det_width</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#float" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">float</span></tt></a>) &#8211; Size of a detector pixel.</li>
+<li><strong>det_count</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; Number of detector pixels.</li>
+<li><strong>angles</strong> (<a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a>) &#8211; Array of angles in radians.</li>
+<li><strong>matrix_id</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; ID of the sparse matrix.</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last">A projection geometry based on a sparse matrix.</p>
+</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.creators.create_projector">
+<tt class="descclassname">astra.creators.</tt><tt class="descname">create_projector</tt><big>(</big><em>proj_type</em>, <em>proj_geom</em>, <em>vol_geom</em><big>)</big><a class="reference internal" href="_modules/astra/creators.html#create_projector"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.creators.create_projector" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create a 2D projector.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
+<li><strong>proj_type</strong> (<tt class="xref py py-class docutils literal"><span class="pre">string</span></tt>) &#8211; Projector type, such as <tt class="docutils literal"><span class="pre">'line'</span></tt>, <tt class="docutils literal"><span class="pre">'linear'</span></tt>, ...</li>
+<li><strong>proj_geom</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/stdtypes.html#dict" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">dict</span></tt></a>) &#8211; Projection geometry.</li>
+<li><strong>vol_geom</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/stdtypes.html#dict" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">dict</span></tt></a>) &#8211; Volume geometry.</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last"><a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a> &#8211; The ID of the projector.</p>
+</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.creators.create_reconstruction">
+<tt class="descclassname">astra.creators.</tt><tt class="descname">create_reconstruction</tt><big>(</big><em>rec_type</em>, <em>proj_id</em>, <em>sinogram</em>, <em>iterations=1</em>, <em>use_mask='no'</em>, <em>mask=array([]</em>, <em>dtype=float64)</em>, <em>use_minc='no'</em>, <em>minc=0</em>, <em>use_maxc='no'</em>, <em>maxc=255</em>, <em>returnData=True</em>, <em>filterType=None</em>, <em>filterData=None</em><big>)</big><a class="reference internal" href="_modules/astra/creators.html#create_reconstruction"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.creators.create_reconstruction" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create a reconstruction of a sinogram (2D).</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
+<li><strong>rec_type</strong> (<tt class="xref py py-class docutils literal"><span class="pre">string</span></tt>) &#8211; Name of the reconstruction algorithm.</li>
+<li><strong>proj_id</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; ID of the projector to use.</li>
+<li><strong>sinogram</strong> (<a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a> or <a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; Sinogram data or ID.</li>
+<li><strong>iterations</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; Number of iterations to run.</li>
+<li><strong>use_mask</strong> (<tt class="docutils literal"><span class="pre">'yes'</span></tt> or <tt class="docutils literal"><span class="pre">'no'</span></tt>) &#8211; Whether to use a mask.</li>
+<li><strong>mask</strong> (<a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a> or <a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; Mask data or ID</li>
+<li><strong>use_minc</strong> (<tt class="docutils literal"><span class="pre">'yes'</span></tt> or <tt class="docutils literal"><span class="pre">'no'</span></tt>) &#8211; Whether to force a minimum value on the reconstruction pixels.</li>
+<li><strong>minc</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#float" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">float</span></tt></a>) &#8211; Minimum value to use.</li>
+<li><strong>use_maxc</strong> (<tt class="docutils literal"><span class="pre">'yes'</span></tt> or <tt class="docutils literal"><span class="pre">'no'</span></tt>) &#8211; Whether to force a maximum value on the reconstruction pixels.</li>
+<li><strong>maxc</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#float" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">float</span></tt></a>) &#8211; Maximum value to use.</li>
+<li><strong>returnData</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#bool" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">bool</span></tt></a>) &#8211; If False, only return the ID of the reconstruction.</li>
+<li><strong>filterType</strong> (<tt class="xref py py-class docutils literal"><span class="pre">string</span></tt>) &#8211; Which type of filter to use for filter-based methods.</li>
+<li><strong>filterData</strong> (<a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a>) &#8211; Optional filter data for filter-based methods.</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last"><a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a> or (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>, <a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a>) &#8211; If <tt class="docutils literal"><span class="pre">returnData=False</span></tt>, returns the ID of the reconstruction. Otherwise, returns a tuple containing the ID of the reconstruction and reconstruction itself, in that order.</p>
+</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.creators.create_sino">
+<tt class="descclassname">astra.creators.</tt><tt class="descname">create_sino</tt><big>(</big><em>data</em>, <em>proj_id=None</em>, <em>proj_geom=None</em>, <em>vol_geom=None</em>, <em>useCUDA=False</em>, <em>returnData=True</em>, <em>gpuIndex=None</em><big>)</big><a class="reference internal" href="_modules/astra/creators.html#create_sino"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.creators.create_sino" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create a forward projection of an image (2D).</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
+<li><strong>data</strong> (<a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a> or <a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; Image data or ID.</li>
+<li><strong>proj_id</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; ID of the projector to use.</li>
+<li><strong>proj_geom</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/stdtypes.html#dict" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">dict</span></tt></a>) &#8211; Projection geometry.</li>
+<li><strong>vol_geom</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/stdtypes.html#dict" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">dict</span></tt></a>) &#8211; Volume geometry.</li>
+<li><strong>useCUDA</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#bool" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">bool</span></tt></a>) &#8211; If <tt class="docutils literal"><span class="pre">True</span></tt>, use CUDA for the calculation.</li>
+<li><strong>returnData</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#bool" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">bool</span></tt></a>) &#8211; If False, only return the ID of the forward projection.</li>
+<li><strong>gpuIndex</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; Optional GPU index.</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last"><a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a> or (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>, <a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a>)</p>
+</td>
+</tr>
+</tbody>
+</table>
+<p>If <tt class="docutils literal"><span class="pre">returnData=False</span></tt>, returns the ID of the forward
+projection. Otherwise, returns a tuple containing the ID of the
+forward projection and the forward projection itself, in that
+order.</p>
+<p>The geometry of setup is defined by <tt class="docutils literal"><span class="pre">proj_id</span></tt> or with
+<tt class="docutils literal"><span class="pre">proj_geom</span></tt> and <tt class="docutils literal"><span class="pre">vol_geom</span></tt>. If <tt class="docutils literal"><span class="pre">proj_id</span></tt> is given, then
+<tt class="docutils literal"><span class="pre">proj_geom</span></tt> and <tt class="docutils literal"><span class="pre">vol_geom</span></tt> must be None and vice versa.</p>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.creators.create_sino3d_gpu">
+<tt class="descclassname">astra.creators.</tt><tt class="descname">create_sino3d_gpu</tt><big>(</big><em>data</em>, <em>proj_geom</em>, <em>vol_geom</em>, <em>returnData=True</em>, <em>gpuIndex=None</em><big>)</big><a class="reference internal" href="_modules/astra/creators.html#create_sino3d_gpu"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.creators.create_sino3d_gpu" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create a forward projection of an image (3D).</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
+<li><strong>data</strong> (<a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a> or <a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; Image data or ID.</li>
+<li><strong>proj_geom</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/stdtypes.html#dict" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">dict</span></tt></a>) &#8211; Projection geometry.</li>
+<li><strong>vol_geom</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/stdtypes.html#dict" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">dict</span></tt></a>) &#8211; Volume geometry.</li>
+<li><strong>returnData</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#bool" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">bool</span></tt></a>) &#8211; If False, only return the ID of the forward projection.</li>
+<li><strong>gpuIndex</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; Optional GPU index.</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last"><a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a> or (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>, <a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a>) &#8211; If <tt class="docutils literal"><span class="pre">returnData=False</span></tt>, returns the ID of the forward projection. Otherwise, returns a tuple containing the ID of the forward projection and the forward projection itself, in that order.</p>
+</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.creators.create_vol_geom">
+<tt class="descclassname">astra.creators.</tt><tt class="descname">create_vol_geom</tt><big>(</big><em>*varargin</em><big>)</big><a class="reference internal" href="_modules/astra/creators.html#create_vol_geom"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.creators.create_vol_geom" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create a volume geometry structure.</p>
+<p>This method can be called in a number of ways:</p>
+<dl class="docutils">
+<dt><tt class="docutils literal"><span class="pre">create_vol_geom(N)</span></tt>:</dt>
+<dd><table class="first last docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">returns:</th><td class="field-body">A 2D volume geometry of size <span class="math">\(N \times N\)</span>.</td>
+</tr>
+</tbody>
+</table>
+</dd>
+<dt><tt class="docutils literal"><span class="pre">create_vol_geom((M,</span> <span class="pre">N))</span></tt>:</dt>
+<dd><table class="first last docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">returns:</th><td class="field-body">A 2D volume geometry of size <span class="math">\(M \times N\)</span>.</td>
+</tr>
+</tbody>
+</table>
+</dd>
+<dt><tt class="docutils literal"><span class="pre">create_vol_geom(M,</span> <span class="pre">N)</span></tt>:</dt>
+<dd><table class="first last docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">returns:</th><td class="field-body">A 2D volume geometry of size <span class="math">\(M \times N\)</span>.</td>
+</tr>
+</tbody>
+</table>
+</dd>
+<dt><tt class="docutils literal"><span class="pre">create_vol_geom(M,</span> <span class="pre">N,</span> <span class="pre">minx,</span> <span class="pre">maxx,</span> <span class="pre">miny,</span> <span class="pre">maxy)</span></tt>:</dt>
+<dd><table class="first last docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">returns:</th><td class="field-body">A 2D volume geometry of size <span class="math">\(M \times N\)</span>, windowed as <span class="math">\(minx \leq x \leq maxx\)</span> and <span class="math">\(miny \leq y \leq maxy\)</span>.</td>
+</tr>
+</tbody>
+</table>
+</dd>
+<dt><tt class="docutils literal"><span class="pre">create_vol_geom((M,</span> <span class="pre">N,</span> <span class="pre">Z))</span></tt>:</dt>
+<dd><table class="first last docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">returns:</th><td class="field-body">A 3D volume geometry of size <span class="math">\(M \times N \times Z\)</span>.</td>
+</tr>
+</tbody>
+</table>
+</dd>
+<dt><tt class="docutils literal"><span class="pre">create_vol_geom(M,</span> <span class="pre">N,</span> <span class="pre">Z)</span></tt>:</dt>
+<dd><table class="first last docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">returns:</th><td class="field-body">A 3D volume geometry of size <span class="math">\(M \times N \times Z\)</span>.</td>
+</tr>
+</tbody>
+</table>
+</dd>
+</dl>
+</dd></dl>
+
+</div>
+
+
+          </div>
+        </div>
+      </div>
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diff --git a/python/docSRC/_build/html/data2d.html b/python/docSRC/_build/html/data2d.html
new file mode 100644
index 0000000..6b01d41
--- /dev/null
+++ b/python/docSRC/_build/html/data2d.html
@@ -0,0 +1,277 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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+          <div class="body">
+            
+  <div class="section" id="module-astra.data2d">
+<span id="d-data-objects-the-data2d-module"></span><h1>2D data objects: the <tt class="xref py py-mod docutils literal"><span class="pre">data2d</span></tt> module<a class="headerlink" href="#module-astra.data2d" title="Permalink to this headline">¶</a></h1>
+<dl class="function">
+<dt id="astra.data2d.change_geometry">
+<tt class="descclassname">astra.data2d.</tt><tt class="descname">change_geometry</tt><big>(</big><em>i</em>, <em>geom</em><big>)</big><a class="reference internal" href="_modules/astra/data2d.html#change_geometry"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.data2d.change_geometry" title="Permalink to this definition">¶</a></dt>
+<dd><p>Change the geometry of a 2D object.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first last simple">
+<li><strong>i</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; ID of object.</li>
+<li><strong>geom</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/stdtypes.html#dict" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">dict</span></tt></a>) &#8211; new geometry.</li>
+</ul>
+</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.data2d.clear">
+<tt class="descclassname">astra.data2d.</tt><tt class="descname">clear</tt><big>(</big><big>)</big><a class="reference internal" href="_modules/astra/data2d.html#clear"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.data2d.clear" title="Permalink to this definition">¶</a></dt>
+<dd><p>Clear all 2D data objects.</p>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.data2d.create">
+<tt class="descclassname">astra.data2d.</tt><tt class="descname">create</tt><big>(</big><em>datatype</em>, <em>geometry</em>, <em>data=None</em><big>)</big><a class="reference internal" href="_modules/astra/data2d.html#create"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.data2d.create" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create a 2D object.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
+<li><strong>datatype</strong> (<tt class="xref py py-class docutils literal"><span class="pre">string</span></tt>) &#8211; Data object type, &#8216;-vol&#8217; or &#8216;-sino&#8217;.</li>
+<li><strong>geometry</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/stdtypes.html#dict" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">dict</span></tt></a>) &#8211; Volume or projection geometry.</li>
+<li><strong>data</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#float" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">float</span></tt></a> or <a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a>) &#8211; Data to fill the constructed object with, either a scalar or array.</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last"><a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a> &#8211; the ID of the constructed object.</p>
+</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.data2d.delete">
+<tt class="descclassname">astra.data2d.</tt><tt class="descname">delete</tt><big>(</big><em>ids</em><big>)</big><a class="reference internal" href="_modules/astra/data2d.html#delete"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.data2d.delete" title="Permalink to this definition">¶</a></dt>
+<dd><p>Delete a 2D object.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>ids</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a> or <a class="reference external" href="http://docs.python.org/2.7/library/functions.html#list" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">list</span></tt></a>) &#8211; ID or list of ID&#8217;s to delete.</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.data2d.get">
+<tt class="descclassname">astra.data2d.</tt><tt class="descname">get</tt><big>(</big><em>i</em><big>)</big><a class="reference internal" href="_modules/astra/data2d.html#get"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.data2d.get" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get a 2D object.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>i</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; ID of object to get.</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a> &#8211; The object data.</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.data2d.get_geometry">
+<tt class="descclassname">astra.data2d.</tt><tt class="descname">get_geometry</tt><big>(</big><em>i</em><big>)</big><a class="reference internal" href="_modules/astra/data2d.html#get_geometry"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.data2d.get_geometry" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get the geometry of a 2D object.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>i</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; ID of object.</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><a class="reference external" href="http://docs.python.org/2.7/library/stdtypes.html#dict" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">dict</span></tt></a> &#8211; The geometry of object with ID <tt class="docutils literal"><span class="pre">i</span></tt>.</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.data2d.get_shared">
+<tt class="descclassname">astra.data2d.</tt><tt class="descname">get_shared</tt><big>(</big><em>i</em><big>)</big><a class="reference internal" href="_modules/astra/data2d.html#get_shared"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.data2d.get_shared" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get a 2D object with memory shared between the ASTRA toolbox and numpy array.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>i</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; ID of object to get.</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a> &#8211; The object data.</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.data2d.get_single">
+<tt class="descclassname">astra.data2d.</tt><tt class="descname">get_single</tt><big>(</big><em>i</em><big>)</big><a class="reference internal" href="_modules/astra/data2d.html#get_single"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.data2d.get_single" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get a 2D object in single precision.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>i</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; ID of object to get.</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a> &#8211; The object data.</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.data2d.info">
+<tt class="descclassname">astra.data2d.</tt><tt class="descname">info</tt><big>(</big><big>)</big><a class="reference internal" href="_modules/astra/data2d.html#info"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.data2d.info" title="Permalink to this definition">¶</a></dt>
+<dd><p>Print info on 2D objects in memory.</p>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.data2d.store">
+<tt class="descclassname">astra.data2d.</tt><tt class="descname">store</tt><big>(</big><em>i</em>, <em>data</em><big>)</big><a class="reference internal" href="_modules/astra/data2d.html#store"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.data2d.store" title="Permalink to this definition">¶</a></dt>
+<dd><p>Fill existing 2D object with data.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first last simple">
+<li><strong>i</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; ID of object to fill.</li>
+<li><strong>data</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#float" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">float</span></tt></a> or <a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a>) &#8211; Data to fill the object with, either a scalar or array.</li>
+</ul>
+</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+</div>
+
+
+          </div>
+        </div>
+      </div>
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+                        title="previous chapter">Welcome to PyASTRAToolbox&#8217;s documentation!</a></p>
+  <h4>Next topic</h4>
+  <p class="topless"><a href="data3d.html"
+                        title="next chapter">3D data objects: the <tt class="docutils literal"><span class="pre">data3d</span></tt> module</a></p>
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+            
+  <div class="section" id="module-astra.data3d">
+<span id="d-data-objects-the-data3d-module"></span><h1>3D data objects: the <tt class="xref py py-mod docutils literal"><span class="pre">data3d</span></tt> module<a class="headerlink" href="#module-astra.data3d" title="Permalink to this headline">¶</a></h1>
+<dl class="function">
+<dt id="astra.data3d.clear">
+<tt class="descclassname">astra.data3d.</tt><tt class="descname">clear</tt><big>(</big><big>)</big><a class="reference internal" href="_modules/astra/data3d.html#clear"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.data3d.clear" title="Permalink to this definition">¶</a></dt>
+<dd><p>Clear all 3D data objects.</p>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.data3d.create">
+<tt class="descclassname">astra.data3d.</tt><tt class="descname">create</tt><big>(</big><em>datatype</em>, <em>geometry</em>, <em>data=None</em><big>)</big><a class="reference internal" href="_modules/astra/data3d.html#create"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.data3d.create" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create a 3D object.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
+<li><strong>datatype</strong> (<tt class="xref py py-class docutils literal"><span class="pre">string</span></tt>) &#8211; Data object type, &#8216;-vol&#8217; or &#8216;-sino&#8217;.</li>
+<li><strong>geometry</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/stdtypes.html#dict" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">dict</span></tt></a>) &#8211; Volume or projection geometry.</li>
+<li><strong>data</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#float" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">float</span></tt></a> or <a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a>) &#8211; Data to fill the constructed object with, either a scalar or array.</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last"><a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a> &#8211; the ID of the constructed object.</p>
+</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.data3d.delete">
+<tt class="descclassname">astra.data3d.</tt><tt class="descname">delete</tt><big>(</big><em>ids</em><big>)</big><a class="reference internal" href="_modules/astra/data3d.html#delete"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.data3d.delete" title="Permalink to this definition">¶</a></dt>
+<dd><p>Delete a 2D object.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>ids</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a> or <a class="reference external" href="http://docs.python.org/2.7/library/functions.html#list" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">list</span></tt></a>) &#8211; ID or list of ID&#8217;s to delete.</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.data3d.dimensions">
+<tt class="descclassname">astra.data3d.</tt><tt class="descname">dimensions</tt><big>(</big><em>i</em><big>)</big><a class="reference internal" href="_modules/astra/data3d.html#dimensions"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.data3d.dimensions" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get dimensions of a 3D object.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>i</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; ID of object.</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><tt class="xref py py-class docutils literal"><span class="pre">tuple</span></tt> &#8211; dimensions of object with ID <tt class="docutils literal"><span class="pre">i</span></tt>.</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.data3d.get">
+<tt class="descclassname">astra.data3d.</tt><tt class="descname">get</tt><big>(</big><em>i</em><big>)</big><a class="reference internal" href="_modules/astra/data3d.html#get"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.data3d.get" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get a 3D object.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>i</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; ID of object to get.</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a> &#8211; The object data.</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.data3d.get_shared">
+<tt class="descclassname">astra.data3d.</tt><tt class="descname">get_shared</tt><big>(</big><em>i</em><big>)</big><a class="reference internal" href="_modules/astra/data3d.html#get_shared"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.data3d.get_shared" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get a 3D object with memory shared between the ASTRA toolbox and numpy array.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>i</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; ID of object to get.</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a> &#8211; The object data.</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.data3d.get_single">
+<tt class="descclassname">astra.data3d.</tt><tt class="descname">get_single</tt><big>(</big><em>i</em><big>)</big><a class="reference internal" href="_modules/astra/data3d.html#get_single"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.data3d.get_single" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get a 3D object in single precision.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>i</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; ID of object to get.</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a> &#8211; The object data.</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.data3d.info">
+<tt class="descclassname">astra.data3d.</tt><tt class="descname">info</tt><big>(</big><big>)</big><a class="reference internal" href="_modules/astra/data3d.html#info"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.data3d.info" title="Permalink to this definition">¶</a></dt>
+<dd><p>Print info on 3D objects in memory.</p>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.data3d.store">
+<tt class="descclassname">astra.data3d.</tt><tt class="descname">store</tt><big>(</big><em>i</em>, <em>data</em><big>)</big><a class="reference internal" href="_modules/astra/data3d.html#store"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.data3d.store" title="Permalink to this definition">¶</a></dt>
+<dd><p>Fill existing 3D object with data.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first last simple">
+<li><strong>i</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; ID of object to fill.</li>
+<li><strong>data</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#float" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">float</span></tt></a> or <a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a>) &#8211; Data to fill the object with, either a scalar or array.</li>
+</ul>
+</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+</div>
+
+
+          </div>
+        </div>
+      </div>
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+        <div class="sphinxsidebarwrapper">
+  <h4>Previous topic</h4>
+  <p class="topless"><a href="data2d.html"
+                        title="previous chapter">2D data objects: the <tt class="docutils literal"><span class="pre">data2d</span></tt> module</a></p>
+  <h4>Next topic</h4>
+  <p class="topless"><a href="projector.html"
+                        title="next chapter">Projector object: the <tt class="docutils literal"><span class="pre">projector</span></tt> module</a></p>
+  <h3>This Page</h3>
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+           rel="nofollow">Show Source</a></li>
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+            
+  <div class="section" id="module-astra.functions">
+<span id="additional-functions-the-functions-module"></span><h1>Additional functions: the <tt class="xref py py-mod docutils literal"><span class="pre">functions</span></tt> module<a class="headerlink" href="#module-astra.functions" title="Permalink to this headline">¶</a></h1>
+<p>Additional functions for PyAstraToolbox.</p>
+<dl class="function">
+<dt id="astra.functions.add_noise_to_sino">
+<tt class="descclassname">astra.functions.</tt><tt class="descname">add_noise_to_sino</tt><big>(</big><em>sinogram_in</em>, <em>I0</em>, <em>seed=None</em><big>)</big><a class="reference internal" href="_modules/astra/functions.html#add_noise_to_sino"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.functions.add_noise_to_sino" title="Permalink to this definition">¶</a></dt>
+<dd><p>Adds Poisson noise to a sinogram.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
+<li><strong>sinogram_in</strong> (<a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a>) &#8211; Sinogram to add noise to.</li>
+<li><strong>I0</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#float" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">float</span></tt></a>) &#8211; Background intensity. Lower values lead to higher noise.</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last"><a class="reference external" href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.ndarray.html#numpy.ndarray" title="(in NumPy v1.9)"><tt class="xref py py-class docutils literal"><span class="pre">numpy.ndarray</span></tt></a> &#8211; the sinogram with added noise.</p>
+</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.functions.clear">
+<tt class="descclassname">astra.functions.</tt><tt class="descname">clear</tt><big>(</big><big>)</big><a class="reference internal" href="_modules/astra/functions.html#clear"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.functions.clear" title="Permalink to this definition">¶</a></dt>
+<dd><p>Clears all used memory of the ASTRA Toolbox.</p>
+<div class="admonition note">
+<p class="first admonition-title">Note</p>
+<p class="last">This is irreversible.</p>
+</div>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.functions.data_op">
+<tt class="descclassname">astra.functions.</tt><tt class="descname">data_op</tt><big>(</big><em>op</em>, <em>data</em>, <em>scalar</em>, <em>gpu_core</em>, <em>mask=None</em><big>)</big><a class="reference internal" href="_modules/astra/functions.html#data_op"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.functions.data_op" title="Permalink to this definition">¶</a></dt>
+<dd><p>Perform data operation on data.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first last simple">
+<li><strong>op</strong> &#8211; Operation to perform.</li>
+<li><strong>data</strong> &#8211; Data to perform operation on.</li>
+<li><strong>scalar</strong> &#8211; Scalar argument to data operation.</li>
+<li><strong>gpu_core</strong> &#8211; GPU core to perform operation on.</li>
+<li><strong>mask</strong> &#8211; Optional mask.</li>
+</ul>
+</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.functions.geom_2vec">
+<tt class="descclassname">astra.functions.</tt><tt class="descname">geom_2vec</tt><big>(</big><em>proj_geom</em><big>)</big><a class="reference internal" href="_modules/astra/functions.html#geom_2vec"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.functions.geom_2vec" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns a vector-based projection geometry from a basic projection geometry.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>proj_geom</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/stdtypes.html#dict" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">dict</span></tt></a>) &#8211; Projection geometry to convert</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.functions.geom_size">
+<tt class="descclassname">astra.functions.</tt><tt class="descname">geom_size</tt><big>(</big><em>geom</em>, <em>dim=None</em><big>)</big><a class="reference internal" href="_modules/astra/functions.html#geom_size"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.functions.geom_size" title="Permalink to this definition">¶</a></dt>
+<dd><p>Returns the size of a volume or sinogram, based on the projection or volume geometry.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first last simple">
+<li><strong>geom</strong> &#8211; Geometry to calculate size from</li>
+<li><strong>dim</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; Optional axis index to return</li>
+</ul>
+</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.functions.move_vol_geom">
+<tt class="descclassname">astra.functions.</tt><tt class="descname">move_vol_geom</tt><big>(</big><em>geom</em>, <em>pos</em>, <em>is_relative=False</em><big>)</big><a class="reference internal" href="_modules/astra/functions.html#move_vol_geom"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.functions.move_vol_geom" title="Permalink to this definition">¶</a></dt>
+<dd><p>Moves center of volume geometry to new position.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
+<li><strong>geom</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/stdtypes.html#dict" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">dict</span></tt></a>) &#8211; Input volume geometry</li>
+<li><strong>pos</strong> (<tt class="xref py py-class docutils literal"><span class="pre">tuple</span></tt>) &#8211; Tuple (x,y[,z]) for new position, with the center of the image at (0,0[,0])</li>
+<li><strong>is_relative</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#bool" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">bool</span></tt></a>) &#8211; Whether new position is relative to the old position</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last"><a class="reference external" href="http://docs.python.org/2.7/library/stdtypes.html#dict" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">dict</span></tt></a> &#8211; Volume geometry with the new center</p>
+</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+</div>
+
+
+          </div>
+        </div>
+      </div>
+      <div class="sphinxsidebar">
+        <div class="sphinxsidebarwrapper">
+  <h4>Previous topic</h4>
+  <p class="topless"><a href="creators.html"
+                        title="previous chapter">Creation of objects: the <tt class="docutils literal"><span class="pre">creators</span></tt> module</a></p>
+  <h4>Next topic</h4>
+  <p class="topless"><a href="ASTRAProjector.html"
+                        title="next chapter">Helper class: the <tt class="docutils literal"><span class="pre">ASTRAProjector</span></tt> module</a></p>
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+ <a href="#A"><strong>A</strong></a>
+ | <a href="#B"><strong>B</strong></a>
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+ | <a href="#D"><strong>D</strong></a>
+ | <a href="#F"><strong>F</strong></a>
+ | <a href="#G"><strong>G</strong></a>
+ | <a href="#I"><strong>I</strong></a>
+ | <a href="#M"><strong>M</strong></a>
+ | <a href="#P"><strong>P</strong></a>
+ | <a href="#R"><strong>R</strong></a>
+ | <a href="#S"><strong>S</strong></a>
+ | <a href="#U"><strong>U</strong></a>
+ | <a href="#V"><strong>V</strong></a>
+ | <a href="#W"><strong>W</strong></a>
+ 
+</div>
+<h2 id="A">A</h2>
+<table style="width: 100%" class="indextable genindextable"><tr>
+  <td style="width: 33%" valign="top"><dl>
+      
+  <dt><a href="functions.html#astra.functions.add_noise_to_sino">add_noise_to_sino() (in module astra.functions)</a>
+  </dt>
+
+      
+  <dt><a href="matlab.html#astra.matlab.algorithm">algorithm() (in module astra.matlab)</a>
+  </dt>
+
+      
+  <dt><a href="matlab.html#astra.matlab.astra">astra() (in module astra.matlab)</a>
+  </dt>
+
+      
+  <dt><a href="algorithm.html#module-astra.algorithm">astra.algorithm (module)</a>
+  </dt>
+
+      
+  <dt><a href="astra.html#module-astra.astra">astra.astra (module)</a>
+  </dt>
+
+      
+  <dt><a href="ASTRAProjector.html#module-astra.ASTRAProjector">astra.ASTRAProjector (module)</a>
+  </dt>
+
+      
+  <dt><a href="creators.html#module-astra.creators">astra.creators (module)</a>
+  </dt>
+
+      
+  <dt><a href="data2d.html#module-astra.data2d">astra.data2d (module)</a>
+  </dt>
+
+  </dl></td>
+  <td style="width: 33%" valign="top"><dl>
+      
+  <dt><a href="data3d.html#module-astra.data3d">astra.data3d (module)</a>
+  </dt>
+
+      
+  <dt><a href="functions.html#module-astra.functions">astra.functions (module)</a>
+  </dt>
+
+      
+  <dt><a href="matlab.html#module-astra.matlab">astra.matlab (module)</a>
+  </dt>
+
+      
+  <dt><a href="matrix.html#module-astra.matrix">astra.matrix (module)</a>
+  </dt>
+
+      
+  <dt><a href="projector.html#module-astra.projector">astra.projector (module)</a>
+  </dt>
+
+      
+  <dt><a href="creators.html#astra.creators.astra_dict">astra_dict() (in module astra.creators)</a>
+  </dt>
+
+      
+  <dt><a href="ASTRAProjector.html#astra.ASTRAProjector.ASTRAProjector2D">ASTRAProjector2D (class in astra.ASTRAProjector)</a>
+  </dt>
+
+      
+  <dt><a href="ASTRAProjector.html#astra.ASTRAProjector.ASTRAProjector2DTranspose">ASTRAProjector2DTranspose (class in astra.ASTRAProjector)</a>
+  </dt>
+
+  </dl></td>
+</tr></table>
+
+<h2 id="B">B</h2>
+<table style="width: 100%" class="indextable genindextable"><tr>
+  <td style="width: 33%" valign="top"><dl>
+      
+  <dt><a href="ASTRAProjector.html#astra.ASTRAProjector.ASTRAProjector2D.backProject">backProject() (astra.ASTRAProjector.ASTRAProjector2D method)</a>
+  </dt>
+
+  </dl></td>
+</tr></table>
+
+<h2 id="C">C</h2>
+<table style="width: 100%" class="indextable genindextable"><tr>
+  <td style="width: 33%" valign="top"><dl>
+      
+  <dt><a href="data2d.html#astra.data2d.change_geometry">change_geometry() (in module astra.data2d)</a>
+  </dt>
+
+      
+  <dt><a href="algorithm.html#astra.algorithm.clear">clear() (in module astra.algorithm)</a>
+  </dt>
+
+      <dd><dl>
+        
+  <dt><a href="data2d.html#astra.data2d.clear">(in module astra.data2d)</a>
+  </dt>
+
+        
+  <dt><a href="data3d.html#astra.data3d.clear">(in module astra.data3d)</a>
+  </dt>
+
+        
+  <dt><a href="functions.html#astra.functions.clear">(in module astra.functions)</a>
+  </dt>
+
+        
+  <dt><a href="matrix.html#astra.matrix.clear">(in module astra.matrix)</a>
+  </dt>
+
+        
+  <dt><a href="projector.html#astra.projector.clear">(in module astra.projector)</a>
+  </dt>
+
+      </dl></dd>
+      
+  <dt><a href="algorithm.html#astra.algorithm.create">create() (in module astra.algorithm)</a>
+  </dt>
+
+      <dd><dl>
+        
+  <dt><a href="data2d.html#astra.data2d.create">(in module astra.data2d)</a>
+  </dt>
+
+        
+  <dt><a href="data3d.html#astra.data3d.create">(in module astra.data3d)</a>
+  </dt>
+
+        
+  <dt><a href="matrix.html#astra.matrix.create">(in module astra.matrix)</a>
+  </dt>
+
+        
+  <dt><a href="projector.html#astra.projector.create">(in module astra.projector)</a>
+  </dt>
+
+      </dl></dd>
+      
+  <dt><a href="creators.html#astra.creators.create_backprojection">create_backprojection() (in module astra.creators)</a>
+  </dt>
+
+      
+  <dt><a href="creators.html#astra.creators.create_backprojection3d_gpu">create_backprojection3d_gpu() (in module astra.creators)</a>
+  </dt>
+
+      
+  <dt><a href="creators.html#astra.creators.create_proj_geom">create_proj_geom() (in module astra.creators)</a>
+  </dt>
+
+  </dl></td>
+  <td style="width: 33%" valign="top"><dl>
+      
+  <dt><a href="creators.html#astra.creators.create_projector">create_projector() (in module astra.creators)</a>
+  </dt>
+
+      
+  <dt><a href="creators.html#astra.creators.create_reconstruction">create_reconstruction() (in module astra.creators)</a>
+  </dt>
+
+      
+  <dt><a href="creators.html#astra.creators.create_sino">create_sino() (in module astra.creators)</a>
+  </dt>
+
+      
+  <dt><a href="creators.html#astra.creators.create_sino3d_gpu">create_sino3d_gpu() (in module astra.creators)</a>
+  </dt>
+
+      
+  <dt><a href="creators.html#astra.creators.create_vol_geom">create_vol_geom() (in module astra.creators)</a>
+  </dt>
+
+      
+  <dt><a href="astra.html#astra.astra.credits">credits() (in module astra.astra)</a>
+  </dt>
+
+  </dl></td>
+</tr></table>
+
+<h2 id="D">D</h2>
+<table style="width: 100%" class="indextable genindextable"><tr>
+  <td style="width: 33%" valign="top"><dl>
+      
+  <dt><a href="matlab.html#astra.matlab.data2d">data2d() (in module astra.matlab)</a>
+  </dt>
+
+      
+  <dt><a href="matlab.html#astra.matlab.data3d">data3d() (in module astra.matlab)</a>
+  </dt>
+
+      
+  <dt><a href="functions.html#astra.functions.data_op">data_op() (in module astra.functions)</a>
+  </dt>
+
+  </dl></td>
+  <td style="width: 33%" valign="top"><dl>
+      
+  <dt><a href="algorithm.html#astra.algorithm.delete">delete() (in module astra.algorithm)</a>
+  </dt>
+
+      <dd><dl>
+        
+  <dt><a href="data2d.html#astra.data2d.delete">(in module astra.data2d)</a>
+  </dt>
+
+        
+  <dt><a href="data3d.html#astra.data3d.delete">(in module astra.data3d)</a>
+  </dt>
+
+        
+  <dt><a href="matrix.html#astra.matrix.delete">(in module astra.matrix)</a>
+  </dt>
+
+        
+  <dt><a href="projector.html#astra.projector.delete">(in module astra.projector)</a>
+  </dt>
+
+      </dl></dd>
+      
+  <dt><a href="data3d.html#astra.data3d.dimensions">dimensions() (in module astra.data3d)</a>
+  </dt>
+
+  </dl></td>
+</tr></table>
+
+<h2 id="F">F</h2>
+<table style="width: 100%" class="indextable genindextable"><tr>
+  <td style="width: 33%" valign="top"><dl>
+      
+  <dt><a href="ASTRAProjector.html#astra.ASTRAProjector.ASTRAProjector2D.forwardProject">forwardProject() (astra.ASTRAProjector.ASTRAProjector2D method)</a>
+  </dt>
+
+  </dl></td>
+</tr></table>
+
+<h2 id="G">G</h2>
+<table style="width: 100%" class="indextable genindextable"><tr>
+  <td style="width: 33%" valign="top"><dl>
+      
+  <dt><a href="functions.html#astra.functions.geom_2vec">geom_2vec() (in module astra.functions)</a>
+  </dt>
+
+      
+  <dt><a href="functions.html#astra.functions.geom_size">geom_size() (in module astra.functions)</a>
+  </dt>
+
+      
+  <dt><a href="data2d.html#astra.data2d.get">get() (in module astra.data2d)</a>
+  </dt>
+
+      <dd><dl>
+        
+  <dt><a href="data3d.html#astra.data3d.get">(in module astra.data3d)</a>
+  </dt>
+
+        
+  <dt><a href="matrix.html#astra.matrix.get">(in module astra.matrix)</a>
+  </dt>
+
+      </dl></dd>
+      
+  <dt><a href="data2d.html#astra.data2d.get_geometry">get_geometry() (in module astra.data2d)</a>
+  </dt>
+
+  </dl></td>
+  <td style="width: 33%" valign="top"><dl>
+      
+  <dt><a href="algorithm.html#astra.algorithm.get_res_norm">get_res_norm() (in module astra.algorithm)</a>
+  </dt>
+
+      
+  <dt><a href="data2d.html#astra.data2d.get_shared">get_shared() (in module astra.data2d)</a>
+  </dt>
+
+      <dd><dl>
+        
+  <dt><a href="data3d.html#astra.data3d.get_shared">(in module astra.data3d)</a>
+  </dt>
+
+      </dl></dd>
+      
+  <dt><a href="data2d.html#astra.data2d.get_single">get_single() (in module astra.data2d)</a>
+  </dt>
+
+      <dd><dl>
+        
+  <dt><a href="data3d.html#astra.data3d.get_single">(in module astra.data3d)</a>
+  </dt>
+
+      </dl></dd>
+      
+  <dt><a href="matrix.html#astra.matrix.get_size">get_size() (in module astra.matrix)</a>
+  </dt>
+
+  </dl></td>
+</tr></table>
+
+<h2 id="I">I</h2>
+<table style="width: 100%" class="indextable genindextable"><tr>
+  <td style="width: 33%" valign="top"><dl>
+      
+  <dt><a href="algorithm.html#astra.algorithm.info">info() (in module astra.algorithm)</a>
+  </dt>
+
+      <dd><dl>
+        
+  <dt><a href="data2d.html#astra.data2d.info">(in module astra.data2d)</a>
+  </dt>
+
+        
+  <dt><a href="data3d.html#astra.data3d.info">(in module astra.data3d)</a>
+  </dt>
+
+        
+  <dt><a href="matrix.html#astra.matrix.info">(in module astra.matrix)</a>
+  </dt>
+
+        
+  <dt><a href="projector.html#astra.projector.info">(in module astra.projector)</a>
+  </dt>
+
+      </dl></dd>
+  </dl></td>
+</tr></table>
+
+<h2 id="M">M</h2>
+<table style="width: 100%" class="indextable genindextable"><tr>
+  <td style="width: 33%" valign="top"><dl>
+      
+  <dt><a href="matlab.html#astra.matlab.matrix">matrix() (in module astra.matlab)</a>
+  </dt>
+
+      <dd><dl>
+        
+  <dt><a href="projector.html#astra.projector.matrix">(in module astra.projector)</a>
+  </dt>
+
+      </dl></dd>
+  </dl></td>
+  <td style="width: 33%" valign="top"><dl>
+      
+  <dt><a href="functions.html#astra.functions.move_vol_geom">move_vol_geom() (in module astra.functions)</a>
+  </dt>
+
+  </dl></td>
+</tr></table>
+
+<h2 id="P">P</h2>
+<table style="width: 100%" class="indextable genindextable"><tr>
+  <td style="width: 33%" valign="top"><dl>
+      
+  <dt><a href="projector.html#astra.projector.projection_geometry">projection_geometry() (in module astra.projector)</a>
+  </dt>
+
+  </dl></td>
+  <td style="width: 33%" valign="top"><dl>
+      
+  <dt><a href="matlab.html#astra.matlab.projector">projector() (in module astra.matlab)</a>
+  </dt>
+
+  </dl></td>
+</tr></table>
+
+<h2 id="R">R</h2>
+<table style="width: 100%" class="indextable genindextable"><tr>
+  <td style="width: 33%" valign="top"><dl>
+      
+  <dt><a href="ASTRAProjector.html#astra.ASTRAProjector.ASTRAProjector2D.reconstruct">reconstruct() (astra.ASTRAProjector.ASTRAProjector2D method)</a>
+  </dt>
+
+  </dl></td>
+  <td style="width: 33%" valign="top"><dl>
+      
+  <dt><a href="algorithm.html#astra.algorithm.run">run() (in module astra.algorithm)</a>
+  </dt>
+
+  </dl></td>
+</tr></table>
+
+<h2 id="S">S</h2>
+<table style="width: 100%" class="indextable genindextable"><tr>
+  <td style="width: 33%" valign="top"><dl>
+      
+  <dt><a href="astra.html#astra.astra.set_gpu_index">set_gpu_index() (in module astra.astra)</a>
+  </dt>
+
+      
+  <dt><a href="projector.html#astra.projector.splat">splat() (in module astra.projector)</a>
+  </dt>
+
+  </dl></td>
+  <td style="width: 33%" valign="top"><dl>
+      
+  <dt><a href="data2d.html#astra.data2d.store">store() (in module astra.data2d)</a>
+  </dt>
+
+      <dd><dl>
+        
+  <dt><a href="data3d.html#astra.data3d.store">(in module astra.data3d)</a>
+  </dt>
+
+        
+  <dt><a href="matrix.html#astra.matrix.store">(in module astra.matrix)</a>
+  </dt>
+
+      </dl></dd>
+  </dl></td>
+</tr></table>
+
+<h2 id="U">U</h2>
+<table style="width: 100%" class="indextable genindextable"><tr>
+  <td style="width: 33%" valign="top"><dl>
+      
+  <dt><a href="astra.html#astra.astra.use_cuda">use_cuda() (in module astra.astra)</a>
+  </dt>
+
+  </dl></td>
+</tr></table>
+
+<h2 id="V">V</h2>
+<table style="width: 100%" class="indextable genindextable"><tr>
+  <td style="width: 33%" valign="top"><dl>
+      
+  <dt><a href="astra.html#astra.astra.version">version() (in module astra.astra)</a>
+  </dt>
+
+  </dl></td>
+  <td style="width: 33%" valign="top"><dl>
+      
+  <dt><a href="projector.html#astra.projector.volume_geometry">volume_geometry() (in module astra.projector)</a>
+  </dt>
+
+  </dl></td>
+</tr></table>
+
+<h2 id="W">W</h2>
+<table style="width: 100%" class="indextable genindextable"><tr>
+  <td style="width: 33%" valign="top"><dl>
+      
+  <dt><a href="projector.html#astra.projector.weights_projection">weights_projection() (in module astra.projector)</a>
+  </dt>
+
+  </dl></td>
+  <td style="width: 33%" valign="top"><dl>
+      
+  <dt><a href="projector.html#astra.projector.weights_single_ray">weights_single_ray() (in module astra.projector)</a>
+  </dt>
+
+  </dl></td>
+</tr></table>
+
+
+
+          </div>
+        </div>
+      </div>
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+  <div class="section" id="welcome-to-pyastratoolbox-s-documentation">
+<h1>Welcome to PyASTRAToolbox&#8217;s documentation!<a class="headerlink" href="#welcome-to-pyastratoolbox-s-documentation" title="Permalink to this headline">¶</a></h1>
+<p>Contents:</p>
+<div class="toctree-wrapper compound">
+<ul>
+<li class="toctree-l1"><a class="reference internal" href="data2d.html">2D data objects: the <tt class="docutils literal"><span class="pre">data2d</span></tt> module</a></li>
+<li class="toctree-l1"><a class="reference internal" href="data3d.html">3D data objects: the <tt class="docutils literal"><span class="pre">data3d</span></tt> module</a></li>
+<li class="toctree-l1"><a class="reference internal" href="projector.html">Projector object: the <tt class="docutils literal"><span class="pre">projector</span></tt> module</a></li>
+<li class="toctree-l1"><a class="reference internal" href="algorithm.html">Algorithms: the <tt class="docutils literal"><span class="pre">algorithm</span></tt> module</a></li>
+<li class="toctree-l1"><a class="reference internal" href="matrix.html">Sparse matrices: the <tt class="docutils literal"><span class="pre">matrix</span></tt> module</a></li>
+<li class="toctree-l1"><a class="reference internal" href="creators.html">Creation of objects: the <tt class="docutils literal"><span class="pre">creators</span></tt> module</a></li>
+<li class="toctree-l1"><a class="reference internal" href="functions.html">Additional functions: the <tt class="docutils literal"><span class="pre">functions</span></tt> module</a></li>
+<li class="toctree-l1"><a class="reference internal" href="ASTRAProjector.html">Helper class: the <tt class="docutils literal"><span class="pre">ASTRAProjector</span></tt> module</a></li>
+<li class="toctree-l1"><a class="reference internal" href="matlab.html">MATLAB compatibility interface: the <tt class="docutils literal"><span class="pre">matlab</span></tt> module</a></li>
+<li class="toctree-l1"><a class="reference internal" href="astra.html">Additional ASTRA methods: the <tt class="docutils literal"><span class="pre">astra</span></tt> module</a></li>
+</ul>
+</div>
+</div>
+<div class="section" id="indices-and-tables">
+<h1>Indices and tables<a class="headerlink" href="#indices-and-tables" title="Permalink to this headline">¶</a></h1>
+<ul class="simple">
+<li><a class="reference internal" href="genindex.html"><em>Index</em></a></li>
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+  <h3><a href="#">Table Of Contents</a></h3>
+  <ul>
+<li><a class="reference internal" href="#">Welcome to PyASTRAToolbox&#8217;s documentation!</a></li>
+<li><a class="reference internal" href="#indices-and-tables">Indices and tables</a></li>
+</ul>
+
+  <h4>Next topic</h4>
+  <p class="topless"><a href="data2d.html"
+                        title="next chapter">2D data objects: the <tt class="docutils literal"><span class="pre">data2d</span></tt> module</a></p>
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+    <link rel="next" title="Additional ASTRA methods: the astra module" href="astra.html" />
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+             accesskey="I">index</a></li>
+        <li class="right" >
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+             >modules</a> |</li>
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+             accesskey="N">next</a> |</li>
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+             accesskey="P">previous</a> |</li>
+        <li><a href="index.html">PyASTRAToolbox 1.6 documentation</a> &raquo;</li> 
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+        <div class="bodywrapper">
+          <div class="body">
+            
+  <div class="section" id="module-astra.matlab">
+<span id="matlab-compatibility-interface-the-matlab-module"></span><h1>MATLAB compatibility interface: the <tt class="xref py py-mod docutils literal"><span class="pre">matlab</span></tt> module<a class="headerlink" href="#module-astra.matlab" title="Permalink to this headline">¶</a></h1>
+<p>This module implements a MATLAB-like interface to the ASTRA Toolbox.</p>
+<p>Note that all functions are called with a <tt class="xref py py-class docutils literal"><span class="pre">string</span></tt> as the first
+argument, specifying the operation to perform. This un-pythonic way
+is used to make transitioning from MATLAB code to Python code easier, as
+the MATLAB interface uses the same type of method calling.</p>
+<p>After an initial <tt class="docutils literal"><span class="pre">import</span> <span class="pre">astra</span></tt>, these functions can be accessed in the
+<tt class="docutils literal"><span class="pre">astra.m</span></tt> module.</p>
+<dl class="function">
+<dt id="astra.matlab.algorithm">
+<tt class="descclassname">astra.matlab.</tt><tt class="descname">algorithm</tt><big>(</big><em>command</em>, <em>*args</em><big>)</big><a class="reference internal" href="_modules/astra/matlab.html#algorithm"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.matlab.algorithm" title="Permalink to this definition">¶</a></dt>
+<dd><p>MATLAB-like interface to the <a class="reference internal" href="algorithm.html#module-astra.algorithm" title="astra.algorithm"><tt class="xref py py-mod docutils literal"><span class="pre">astra.algorithm</span></tt></a> module</p>
+<p>For example:</p>
+<p><tt class="docutils literal"><span class="pre">astra.m.algorithm('run',i,1000)</span></tt> &#8211; Run an algorithm with 1000 iterations.</p>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.matlab.astra">
+<tt class="descclassname">astra.matlab.</tt><tt class="descname">astra</tt><big>(</big><em>command</em>, <em>*args</em><big>)</big><a class="reference internal" href="_modules/astra/matlab.html#astra"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.matlab.astra" title="Permalink to this definition">¶</a></dt>
+<dd><p>MATLAB-like interface to the <a class="reference internal" href="astra.html#module-astra.astra" title="astra.astra"><tt class="xref py py-mod docutils literal"><span class="pre">astra.astra</span></tt></a> module</p>
+<p>For example:</p>
+<p><tt class="docutils literal"><span class="pre">astra.m.astra('use_cuda')</span></tt> &#8211; Check if CUDA is enabled.</p>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.matlab.data2d">
+<tt class="descclassname">astra.matlab.</tt><tt class="descname">data2d</tt><big>(</big><em>command</em>, <em>*args</em><big>)</big><a class="reference internal" href="_modules/astra/matlab.html#data2d"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.matlab.data2d" title="Permalink to this definition">¶</a></dt>
+<dd><p>MATLAB-like interface to the <a class="reference internal" href="data2d.html#module-astra.data2d" title="astra.data2d"><tt class="xref py py-mod docutils literal"><span class="pre">astra.data2d</span></tt></a> module</p>
+<p>For example:</p>
+<p><tt class="docutils literal"><span class="pre">astra.m.data2d('create',type,geometry,data)</span></tt> &#8211; Create a 2D object.</p>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.matlab.data3d">
+<tt class="descclassname">astra.matlab.</tt><tt class="descname">data3d</tt><big>(</big><em>command</em>, <em>*args</em><big>)</big><a class="reference internal" href="_modules/astra/matlab.html#data3d"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.matlab.data3d" title="Permalink to this definition">¶</a></dt>
+<dd><p>MATLAB-like interface to the <a class="reference internal" href="data3d.html#module-astra.data3d" title="astra.data3d"><tt class="xref py py-mod docutils literal"><span class="pre">astra.data3d</span></tt></a> module</p>
+<p>For example:</p>
+<p><tt class="docutils literal"><span class="pre">astra.m.data3d('get',i)</span></tt> &#8211; Get 3D object data.</p>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.matlab.matrix">
+<tt class="descclassname">astra.matlab.</tt><tt class="descname">matrix</tt><big>(</big><em>command</em>, <em>*args</em><big>)</big><a class="reference internal" href="_modules/astra/matlab.html#matrix"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.matlab.matrix" title="Permalink to this definition">¶</a></dt>
+<dd><p>MATLAB-like interface to the <a class="reference internal" href="matrix.html#module-astra.matrix" title="astra.matrix"><tt class="xref py py-mod docutils literal"><span class="pre">astra.matrix</span></tt></a> module</p>
+<p>For example:</p>
+<p><tt class="docutils literal"><span class="pre">astra.m.matrix('delete',i)</span></tt> &#8211; Delete a matrix.</p>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.matlab.projector">
+<tt class="descclassname">astra.matlab.</tt><tt class="descname">projector</tt><big>(</big><em>command</em>, <em>*args</em><big>)</big><a class="reference internal" href="_modules/astra/matlab.html#projector"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.matlab.projector" title="Permalink to this definition">¶</a></dt>
+<dd><p>MATLAB-like interface to the <a class="reference internal" href="projector.html#module-astra.projector" title="astra.projector"><tt class="xref py py-mod docutils literal"><span class="pre">astra.projector</span></tt></a> module</p>
+<p>For example:</p>
+<p><tt class="docutils literal"><span class="pre">astra.m.projector('volume_geometry',i)</span></tt> &#8211; Get volume geometry.</p>
+</dd></dl>
+
+</div>
+
+
+          </div>
+        </div>
+      </div>
+      <div class="sphinxsidebar">
+        <div class="sphinxsidebarwrapper">
+  <h4>Previous topic</h4>
+  <p class="topless"><a href="ASTRAProjector.html"
+                        title="previous chapter">Helper class: the <tt class="docutils literal"><span class="pre">ASTRAProjector</span></tt> module</a></p>
+  <h4>Next topic</h4>
+  <p class="topless"><a href="astra.html"
+                        title="next chapter">Additional ASTRA methods: the <tt class="docutils literal"><span class="pre">astra</span></tt> module</a></p>
+  <h3>This Page</h3>
+  <ul class="this-page-menu">
+    <li><a href="_sources/matlab.txt"
+           rel="nofollow">Show Source</a></li>
+  </ul>
+<div id="searchbox" style="display: none">
+  <h3>Quick search</h3>
+    <form class="search" action="search.html" method="get">
+      <input type="text" name="q" />
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+          <a href="astra.html" title="Additional ASTRA methods: the astra module"
+             >next</a> |</li>
+        <li class="right" >
+          <a href="ASTRAProjector.html" title="Helper class: the ASTRAProjector module"
+             >previous</a> |</li>
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\ No newline at end of file
diff --git a/python/docSRC/_build/html/matrix.html b/python/docSRC/_build/html/matrix.html
new file mode 100644
index 0000000..1df4c30
--- /dev/null
+++ b/python/docSRC/_build/html/matrix.html
@@ -0,0 +1,221 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+
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+<html xmlns="http://www.w3.org/1999/xhtml">
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+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+    
+    <title>Sparse matrices: the matrix module &mdash; PyASTRAToolbox 1.6 documentation</title>
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+    <link rel="prev" title="Algorithms: the algorithm module" href="algorithm.html" /> 
+  </head>
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+          <a href="py-modindex.html" title="Python Module Index"
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+            
+  <div class="section" id="module-astra.matrix">
+<span id="sparse-matrices-the-matrix-module"></span><h1>Sparse matrices: the <tt class="xref py py-mod docutils literal"><span class="pre">matrix</span></tt> module<a class="headerlink" href="#module-astra.matrix" title="Permalink to this headline">¶</a></h1>
+<dl class="function">
+<dt id="astra.matrix.clear">
+<tt class="descclassname">astra.matrix.</tt><tt class="descname">clear</tt><big>(</big><big>)</big><a class="reference internal" href="_modules/astra/matrix.html#clear"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.matrix.clear" title="Permalink to this definition">¶</a></dt>
+<dd><p>Clear all matrix objects.</p>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.matrix.create">
+<tt class="descclassname">astra.matrix.</tt><tt class="descname">create</tt><big>(</big><em>data</em><big>)</big><a class="reference internal" href="_modules/astra/matrix.html#create"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.matrix.create" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create matrix object with data.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>data</strong> (<tt class="xref py py-class docutils literal"><span class="pre">scipy.sparse.csr_matrix</span></tt>) &#8211; Data to fill the created object with.</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a> &#8211; the ID of the constructed object.</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.matrix.delete">
+<tt class="descclassname">astra.matrix.</tt><tt class="descname">delete</tt><big>(</big><em>ids</em><big>)</big><a class="reference internal" href="_modules/astra/matrix.html#delete"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.matrix.delete" title="Permalink to this definition">¶</a></dt>
+<dd><p>Delete a matrix object.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>ids</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a> or <a class="reference external" href="http://docs.python.org/2.7/library/functions.html#list" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">list</span></tt></a>) &#8211; ID or list of ID&#8217;s to delete.</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.matrix.get">
+<tt class="descclassname">astra.matrix.</tt><tt class="descname">get</tt><big>(</big><em>i</em><big>)</big><a class="reference internal" href="_modules/astra/matrix.html#get"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.matrix.get" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get a matrix object.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>i</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; ID of object to get.</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><tt class="xref py py-class docutils literal"><span class="pre">scipy.sparse.csr_matrix</span></tt> &#8211;  The object data.</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.matrix.get_size">
+<tt class="descclassname">astra.matrix.</tt><tt class="descname">get_size</tt><big>(</big><em>i</em><big>)</big><a class="reference internal" href="_modules/astra/matrix.html#get_size"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.matrix.get_size" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get matrix dimensions.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>i</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; ID of object.</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><tt class="xref py py-class docutils literal"><span class="pre">tuple</span></tt> &#8211; matrix dimensions.</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.matrix.info">
+<tt class="descclassname">astra.matrix.</tt><tt class="descname">info</tt><big>(</big><big>)</big><a class="reference internal" href="_modules/astra/matrix.html#info"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.matrix.info" title="Permalink to this definition">¶</a></dt>
+<dd><p>Print info on matrix objects in memory.</p>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.matrix.store">
+<tt class="descclassname">astra.matrix.</tt><tt class="descname">store</tt><big>(</big><em>i</em>, <em>data</em><big>)</big><a class="reference internal" href="_modules/astra/matrix.html#store"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.matrix.store" title="Permalink to this definition">¶</a></dt>
+<dd><p>Fill existing matrix object with data.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first last simple">
+<li><strong>i</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; ID of object to fill.</li>
+<li><strong>data</strong> (<tt class="xref py py-class docutils literal"><span class="pre">scipy.sparse.csr_matrix</span></tt>) &#8211; Data to fill the object with.</li>
+</ul>
+</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+</div>
+
+
+          </div>
+        </div>
+      </div>
+      <div class="sphinxsidebar">
+        <div class="sphinxsidebarwrapper">
+  <h4>Previous topic</h4>
+  <p class="topless"><a href="algorithm.html"
+                        title="previous chapter">Algorithms: the <tt class="docutils literal"><span class="pre">algorithm</span></tt> module</a></p>
+  <h4>Next topic</h4>
+  <p class="topless"><a href="creators.html"
+                        title="next chapter">Creation of objects: the <tt class="docutils literal"><span class="pre">creators</span></tt> module</a></p>
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+           rel="nofollow">Show Source</a></li>
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new file mode 100644
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diff --git a/python/docSRC/_build/html/projector.html b/python/docSRC/_build/html/projector.html
new file mode 100644
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--- /dev/null
+++ b/python/docSRC/_build/html/projector.html
@@ -0,0 +1,234 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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+    <title>Projector object: the projector module &mdash; PyASTRAToolbox 1.6 documentation</title>
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+            
+  <div class="section" id="module-astra.projector">
+<span id="projector-object-the-projector-module"></span><h1>Projector object: the <tt class="xref py py-mod docutils literal"><span class="pre">projector</span></tt> module<a class="headerlink" href="#module-astra.projector" title="Permalink to this headline">¶</a></h1>
+<dl class="function">
+<dt id="astra.projector.clear">
+<tt class="descclassname">astra.projector.</tt><tt class="descname">clear</tt><big>(</big><big>)</big><a class="reference internal" href="_modules/astra/projector.html#clear"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.projector.clear" title="Permalink to this definition">¶</a></dt>
+<dd><p>Clear all projector objects.</p>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.projector.create">
+<tt class="descclassname">astra.projector.</tt><tt class="descname">create</tt><big>(</big><em>config</em><big>)</big><a class="reference internal" href="_modules/astra/projector.html#create"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.projector.create" title="Permalink to this definition">¶</a></dt>
+<dd><p>Create projector object.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>config</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/stdtypes.html#dict" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">dict</span></tt></a>) &#8211; Projector options.</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a> &#8211; the ID of the constructed object.</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.projector.delete">
+<tt class="descclassname">astra.projector.</tt><tt class="descname">delete</tt><big>(</big><em>ids</em><big>)</big><a class="reference internal" href="_modules/astra/projector.html#delete"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.projector.delete" title="Permalink to this definition">¶</a></dt>
+<dd><p>Delete a projector object.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>ids</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a> or <a class="reference external" href="http://docs.python.org/2.7/library/functions.html#list" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">list</span></tt></a>) &#8211; ID or list of ID&#8217;s to delete.</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.projector.info">
+<tt class="descclassname">astra.projector.</tt><tt class="descname">info</tt><big>(</big><big>)</big><a class="reference internal" href="_modules/astra/projector.html#info"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.projector.info" title="Permalink to this definition">¶</a></dt>
+<dd><p>Print info on projector objects in memory.</p>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.projector.matrix">
+<tt class="descclassname">astra.projector.</tt><tt class="descname">matrix</tt><big>(</big><em>i</em><big>)</big><a class="reference internal" href="_modules/astra/projector.html#matrix"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.projector.matrix" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get sparse matrix of a projector.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>i</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; ID of projector.</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a> &#8211; ID of sparse matrix.</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.projector.projection_geometry">
+<tt class="descclassname">astra.projector.</tt><tt class="descname">projection_geometry</tt><big>(</big><em>i</em><big>)</big><a class="reference internal" href="_modules/astra/projector.html#projection_geometry"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.projector.projection_geometry" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get projection geometry of a projector.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>i</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; ID of projector.</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><a class="reference external" href="http://docs.python.org/2.7/library/stdtypes.html#dict" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">dict</span></tt></a> &#8211; projection geometry</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.projector.splat">
+<tt class="descclassname">astra.projector.</tt><tt class="descname">splat</tt><big>(</big><em>i</em>, <em>row</em>, <em>col</em><big>)</big><a class="reference internal" href="_modules/astra/projector.html#splat"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.projector.splat" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl class="function">
+<dt id="astra.projector.volume_geometry">
+<tt class="descclassname">astra.projector.</tt><tt class="descname">volume_geometry</tt><big>(</big><em>i</em><big>)</big><a class="reference internal" href="_modules/astra/projector.html#volume_geometry"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.projector.volume_geometry" title="Permalink to this definition">¶</a></dt>
+<dd><p>Get volume geometry of a projector.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>i</strong> (<a class="reference external" href="http://docs.python.org/2.7/library/functions.html#int" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">int</span></tt></a>) &#8211; ID of projector.</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><a class="reference external" href="http://docs.python.org/2.7/library/stdtypes.html#dict" title="(in Python v2.7)"><tt class="xref py py-class docutils literal"><span class="pre">dict</span></tt></a> &#8211; volume geometry</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>
+
+<dl class="function">
+<dt id="astra.projector.weights_projection">
+<tt class="descclassname">astra.projector.</tt><tt class="descname">weights_projection</tt><big>(</big><em>i</em>, <em>projection_index</em><big>)</big><a class="reference internal" href="_modules/astra/projector.html#weights_projection"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.projector.weights_projection" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+<dl class="function">
+<dt id="astra.projector.weights_single_ray">
+<tt class="descclassname">astra.projector.</tt><tt class="descname">weights_single_ray</tt><big>(</big><em>i</em>, <em>projection_index</em>, <em>detector_index</em><big>)</big><a class="reference internal" href="_modules/astra/projector.html#weights_single_ray"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#astra.projector.weights_single_ray" title="Permalink to this definition">¶</a></dt>
+<dd></dd></dl>
+
+</div>
+
+
+          </div>
+        </div>
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+  <p class="topless"><a href="data3d.html"
+                        title="previous chapter">3D data objects: the <tt class="docutils literal"><span class="pre">data3d</span></tt> module</a></p>
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index 0000000..ac8ee73
--- /dev/null
+++ b/python/docSRC/_build/html/search.html
@@ -0,0 +1,118 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+
+
+<html xmlns="http://www.w3.org/1999/xhtml">
+  <head>
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+    
+    <title>Search &mdash; PyASTRAToolbox 1.6 documentation</title>
+    
+    <link rel="stylesheet" href="_static/default.css" type="text/css" />
+    <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
+    
+    <script type="text/javascript">
+      var DOCUMENTATION_OPTIONS = {
+        URL_ROOT:    './',
+        VERSION:     '1.6',
+        COLLAPSE_INDEX: false,
+        FILE_SUFFIX: '.html',
+        HAS_SOURCE:  true
+      };
+    </script>
+    <script type="text/javascript" src="_static/jquery.js"></script>
+    <script type="text/javascript" src="_static/underscore.js"></script>
+    <script type="text/javascript" src="_static/doctools.js"></script>
+    <script type="text/javascript" src="http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>
+    <script type="text/javascript" src="_static/searchtools.js"></script>
+    <link rel="top" title="PyASTRAToolbox 1.6 documentation" href="index.html" />
+  <script type="text/javascript">
+    jQuery(function() { Search.loadIndex("searchindex.js"); });
+  </script>
+  
+  <script type="text/javascript" id="searchindexloader"></script>
+   
+
+  </head>
+  <body>
+    <div class="related">
+      <h3>Navigation</h3>
+      <ul>
+        <li class="right" style="margin-right: 10px">
+          <a href="genindex.html" title="General Index"
+             accesskey="I">index</a></li>
+        <li class="right" >
+          <a href="py-modindex.html" title="Python Module Index"
+             >modules</a> |</li>
+        <li><a href="index.html">PyASTRAToolbox 1.6 documentation</a> &raquo;</li> 
+      </ul>
+    </div>  
+
+    <div class="document">
+      <div class="documentwrapper">
+        <div class="bodywrapper">
+          <div class="body">
+            
+  <h1 id="search-documentation">Search</h1>
+  <div id="fallback" class="admonition warning">
+  <script type="text/javascript">$('#fallback').hide();</script>
+  <p>
+    Please activate JavaScript to enable the search
+    functionality.
+  </p>
+  </div>
+  <p>
+    From here you can search these documents. Enter your search
+    words into the box below and click "search". Note that the search
+    function will automatically search for all of the words. Pages
+    containing fewer words won't appear in the result list.
+  </p>
+  <form action="" method="get">
+    <input type="text" name="q" value="" />
+    <input type="submit" value="search" />
+    <span id="search-progress" style="padding-left: 10px"></span>
+  </form>
+  
+  <div id="search-results">
+  
+  </div>
+
+          </div>
+        </div>
+      </div>
+      <div class="sphinxsidebar">
+        <div class="sphinxsidebarwrapper">
+        </div>
+      </div>
+      <div class="clearer"></div>
+    </div>
+    <div class="related">
+      <h3>Navigation</h3>
+      <ul>
+        <li class="right" style="margin-right: 10px">
+          <a href="genindex.html" title="General Index"
+             >index</a></li>
+        <li class="right" >
+          <a href="py-modindex.html" title="Python Module Index"
+             >modules</a> |</li>
+        <li><a href="index.html">PyASTRAToolbox 1.6 documentation</a> &raquo;</li> 
+      </ul>
+    </div>
+
+    <div class="footer">
+        &copy; Copyright 2013, Centrum Wiskunde &amp; Informatica, Amsterdam.
+      Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.2.3.
+    </div>
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', 'UA-40340335-1', 'dmpelt.github.io');
+  ga('send', 'pageview');
+
+</script>
+
+  </body>
+</html>
\ No newline at end of file
diff --git a/python/docSRC/_build/html/searchindex.js b/python/docSRC/_build/html/searchindex.js
new file mode 100644
index 0000000..cc69a68
--- /dev/null
+++ b/python/docSRC/_build/html/searchindex.js
@@ -0,0 +1 @@
+Search.setIndex({objtypes:{"0":"py:module","1":"py:function","2":"py:method","3":"py:class"},objnames:{"0":["py","module","Python module"],"1":["py","function","Python function"],"2":["py","method","Python method"],"3":["py","class","Python 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\ No newline at end of file
diff --git a/python/docSRC/_templates/layout.html b/python/docSRC/_templates/layout.html
new file mode 100644
index 0000000..f30df11
--- /dev/null
+++ b/python/docSRC/_templates/layout.html
@@ -0,0 +1,15 @@
+{% extends "!layout.html" %}
+
+{% block footer %}
+{{ super() }}
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', 'UA-40340335-1', 'dmpelt.github.io');
+  ga('send', 'pageview');
+
+</script>
+{% endblock %}
diff --git a/python/docSRC/algorithm.rst b/python/docSRC/algorithm.rst
new file mode 100644
index 0000000..83752bd
--- /dev/null
+++ b/python/docSRC/algorithm.rst
@@ -0,0 +1,8 @@
+Algorithms: the :mod:`algorithm` module
+=======================================
+
+.. automodule:: astra.algorithm
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
diff --git a/python/docSRC/astra.rst b/python/docSRC/astra.rst
new file mode 100644
index 0000000..5d5fdf0
--- /dev/null
+++ b/python/docSRC/astra.rst
@@ -0,0 +1,8 @@
+Additional ASTRA methods: the :mod:`astra` module
+========================================================
+
+.. automodule:: astra.astra
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
diff --git a/python/docSRC/conf.py b/python/docSRC/conf.py
new file mode 100644
index 0000000..e54bbb8
--- /dev/null
+++ b/python/docSRC/conf.py
@@ -0,0 +1,287 @@
+# -*- coding: utf-8 -*-
+#
+# .. documentation build configuration file, created by
+# sphinx-quickstart on Wed Mar 13 16:36:32 2013.
+#
+# This file is execfile()d with the current directory set to its containing dir.
+#
+# Note that not all possible configuration values are present in this
+# autogenerated file.
+#
+# All configuration values have a default; values that are commented out
+# serve to show the default.
+
+import sys, os
+
+# If extensions (or modules to document with autodoc) are in another directory,
+# add these directories to sys.path here. If the directory is relative to the
+# documentation root, use os.path.abspath to make it absolute, like shown here.
+#sys.path.insert(0, os.path.abspath('.'))
+
+# -- General configuration -----------------------------------------------------
+
+# If your documentation needs a minimal Sphinx version, state it here.
+#needs_sphinx = '1.0'
+
+# Add any Sphinx extension module names here, as strings. They can be extensions
+# coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
+extensions = ['sphinx.ext.autodoc', 'sphinx.ext.viewcode','sphinx.ext.mathjax','sphinx.ext.intersphinx']
+
+# Add any paths that contain templates here, relative to this directory.
+templates_path = ['_templates']
+
+# The suffix of source filenames.
+source_suffix = '.rst'
+
+# The encoding of source files.
+#source_encoding = 'utf-8-sig'
+
+# The master toctree document.
+master_doc = 'index'
+
+# General information about the project.
+project = u'PyASTRAToolbox'
+copyright = u'2013, Centrum Wiskunde & Informatica, Amsterdam'
+
+# The version info for the project you're documenting, acts as replacement for
+# |version| and |release|, also used in various other places throughout the
+# built documents.
+#
+# The short X.Y version.
+version = '1.6'
+# The full version, including alpha/beta/rc tags.
+release = '1.6'
+
+# The language for content autogenerated by Sphinx. Refer to documentation
+# for a list of supported languages.
+#language = None
+
+# There are two options for replacing |today|: either, you set today to some
+# non-false value, then it is used:
+#today = ''
+# Else, today_fmt is used as the format for a strftime call.
+#today_fmt = '%B %d, %Y'
+
+# List of patterns, relative to source directory, that match files and
+# directories to ignore when looking for source files.
+exclude_patterns = ['_build']
+
+# The reST default role (used for this markup: `text`) to use for all documents.
+#default_role = None
+
+# If true, '()' will be appended to :func: etc. cross-reference text.
+#add_function_parentheses = True
+
+# If true, the current module name will be prepended to all description
+# unit titles (such as .. function::).
+#add_module_names = True
+
+# If true, sectionauthor and moduleauthor directives will be shown in the
+# output. They are ignored by default.
+#show_authors = False
+
+# The name of the Pygments (syntax highlighting) style to use.
+pygments_style = 'sphinx'
+
+# A list of ignored prefixes for module index sorting.
+#modindex_common_prefix = []
+
+
+# -- Options for HTML output ---------------------------------------------------
+
+# The theme to use for HTML and HTML Help pages.  See the documentation for
+# a list of builtin themes.
+html_theme = 'default'
+
+# Theme options are theme-specific and customize the look and feel of a theme
+# further.  For a list of options available for each theme, see the
+# documentation.
+#html_theme_options = {}
+
+# Add any paths that contain custom themes here, relative to this directory.
+#html_theme_path = []
+
+# The name for this set of Sphinx documents.  If None, it defaults to
+# "<project> v<release> documentation".
+#html_title = None
+
+# A shorter title for the navigation bar.  Default is the same as html_title.
+#html_short_title = None
+
+# The name of an image file (relative to this directory) to place at the top
+# of the sidebar.
+#html_logo = None
+
+# The name of an image file (within the static path) to use as favicon of the
+# docs.  This file should be a Windows icon file (.ico) being 16x16 or 32x32
+# pixels large.
+#html_favicon = None
+
+# Add any paths that contain custom static files (such as style sheets) here,
+# relative to this directory. They are copied after the builtin static files,
+# so a file named "default.css" will overwrite the builtin "default.css".
+html_static_path = ['_static']
+
+# If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
+# using the given strftime format.
+#html_last_updated_fmt = '%b %d, %Y'
+
+# If true, SmartyPants will be used to convert quotes and dashes to
+# typographically correct entities.
+#html_use_smartypants = True
+
+# Custom sidebar templates, maps document names to template names.
+#html_sidebars = {}
+
+# Additional templates that should be rendered to pages, maps page names to
+# template names.
+#html_additional_pages = {}
+
+# If false, no module index is generated.
+#html_domain_indices = True
+
+# If false, no index is generated.
+#html_use_index = True
+
+# If true, the index is split into individual pages for each letter.
+#html_split_index = False
+
+# If true, links to the reST sources are added to the pages.
+#html_show_sourcelink = True
+
+# If true, "Created using Sphinx" is shown in the HTML footer. Default is True.
+#html_show_sphinx = True
+
+# If true, "(C) Copyright ..." is shown in the HTML footer. Default is True.
+#html_show_copyright = True
+
+# If true, an OpenSearch description file will be output, and all pages will
+# contain a <link> tag referring to it.  The value of this option must be the
+# base URL from which the finished HTML is served.
+#html_use_opensearch = ''
+
+# This is the file name suffix for HTML files (e.g. ".xhtml").
+#html_file_suffix = None
+
+# Output file base name for HTML help builder.
+htmlhelp_basename = 'doc'
+
+
+# -- Options for LaTeX output --------------------------------------------------
+
+latex_elements = {
+# The paper size ('letterpaper' or 'a4paper').
+#'papersize': 'letterpaper',
+
+# The font size ('10pt', '11pt' or '12pt').
+#'pointsize': '10pt',
+
+# Additional stuff for the LaTeX preamble.
+#'preamble': '',
+}
+
+# Grouping the document tree into LaTeX files. List of tuples
+# (source start file, target name, title, author, documentclass [howto/manual]).
+latex_documents = [
+  ('index', '.tex', u'.. Documentation',
+   u'Author', 'manual'),
+]
+
+# The name of an image file (relative to this directory) to place at the top of
+# the title page.
+#latex_logo = None
+
+# For "manual" documents, if this is true, then toplevel headings are parts,
+# not chapters.
+#latex_use_parts = False
+
+# If true, show page references after internal links.
+#latex_show_pagerefs = False
+
+# If true, show URL addresses after external links.
+#latex_show_urls = False
+
+# Documents to append as an appendix to all manuals.
+#latex_appendices = []
+
+# If false, no module index is generated.
+#latex_domain_indices = True
+
+
+# -- Options for manual page output --------------------------------------------
+
+# One entry per manual page. List of tuples
+# (source start file, name, description, authors, manual section).
+man_pages = [
+    ('index', '', u'.. Documentation',
+     [u'Author'], 1)
+]
+
+# If true, show URL addresses after external links.
+#man_show_urls = False
+
+
+# -- Options for Texinfo output ------------------------------------------------
+
+# Grouping the document tree into Texinfo files. List of tuples
+# (source start file, target name, title, author,
+#  dir menu entry, description, category)
+texinfo_documents = [
+  ('index', '', u'.. Documentation',
+   u'Author', '', 'One line description of project.',
+   'Miscellaneous'),
+]
+
+# Documents to append as an appendix to all manuals.
+#texinfo_appendices = []
+
+# If false, no module index is generated.
+#texinfo_domain_indices = True
+
+# How to display URL addresses: 'footnote', 'no', or 'inline'.
+#texinfo_show_urls = 'footnote'
+
+
+# -- Options for Epub output ---------------------------------------------------
+
+# Bibliographic Dublin Core info.
+epub_title = u'..'
+epub_author = u'Author'
+epub_publisher = u'Author'
+epub_copyright = u'2013, Author'
+
+# The language of the text. It defaults to the language option
+# or en if the language is not set.
+#epub_language = ''
+
+# The scheme of the identifier. Typical schemes are ISBN or URL.
+#epub_scheme = ''
+
+# The unique identifier of the text. This can be a ISBN number
+# or the project homepage.
+#epub_identifier = ''
+
+# A unique identification for the text.
+#epub_uid = ''
+
+# A tuple containing the cover image and cover page html template filenames.
+#epub_cover = ()
+
+# HTML files that should be inserted before the pages created by sphinx.
+# The format is a list of tuples containing the path and title.
+#epub_pre_files = []
+
+# HTML files shat should be inserted after the pages created by sphinx.
+# The format is a list of tuples containing the path and title.
+#epub_post_files = []
+
+# A list of files that should not be packed into the epub file.
+#epub_exclude_files = []
+
+# The depth of the table of contents in toc.ncx.
+#epub_tocdepth = 3
+
+# Allow duplicate toc entries.
+#epub_tocdup = True
+
+intersphinx_mapping = {'python': ('http://docs.python.org/2.7', None), 'numpy':('http://docs.scipy.org/doc/numpy/',None)}
diff --git a/python/docSRC/creators.rst b/python/docSRC/creators.rst
new file mode 100644
index 0000000..d6249c3
--- /dev/null
+++ b/python/docSRC/creators.rst
@@ -0,0 +1,8 @@
+Creation of objects: the :mod:`creators` module
+===============================================
+
+.. automodule:: astra.creators
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
diff --git a/python/docSRC/data2d.rst b/python/docSRC/data2d.rst
new file mode 100644
index 0000000..342cbec
--- /dev/null
+++ b/python/docSRC/data2d.rst
@@ -0,0 +1,8 @@
+2D data objects: the :mod:`data2d` module
+=========================================
+
+.. automodule:: astra.data2d
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
diff --git a/python/docSRC/data3d.rst b/python/docSRC/data3d.rst
new file mode 100644
index 0000000..5b7de23
--- /dev/null
+++ b/python/docSRC/data3d.rst
@@ -0,0 +1,8 @@
+3D data objects: the :mod:`data3d` module
+=========================================
+
+.. automodule:: astra.data3d
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
diff --git a/python/docSRC/functions.rst b/python/docSRC/functions.rst
new file mode 100644
index 0000000..749eb27
--- /dev/null
+++ b/python/docSRC/functions.rst
@@ -0,0 +1,8 @@
+Additional functions: the :mod:`functions` module
+=================================================
+
+.. automodule:: astra.functions
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
diff --git a/python/docSRC/index.rst b/python/docSRC/index.rst
new file mode 100644
index 0000000..8d17a4a
--- /dev/null
+++ b/python/docSRC/index.rst
@@ -0,0 +1,34 @@
+.. .. documentation master file, created by
+   sphinx-quickstart on Wed Mar 13 16:36:32 2013.
+   You can adapt this file completely to your liking, but it should at least
+   contain the root `toctree` directive.
+
+Welcome to PyASTRAToolbox's documentation!
+==========================================
+
+Contents:
+
+.. toctree::
+   :maxdepth: 4
+
+   data2d
+   data3d
+   projector
+   algorithm
+   matrix
+   creators
+   functions
+   ASTRAProjector
+   matlab
+   astra
+.. astra
+.. builder
+
+
+Indices and tables
+==================
+
+* :ref:`genindex`
+* :ref:`modindex`
+* :ref:`search`
+
diff --git a/python/docSRC/make.bat b/python/docSRC/make.bat
new file mode 100644
index 0000000..d70c604
--- /dev/null
+++ b/python/docSRC/make.bat
@@ -0,0 +1,190 @@
+@ECHO OFF
+
+REM Command file for Sphinx documentation
+
+if "%SPHINXBUILD%" == "" (
+	set SPHINXBUILD=sphinx-build
+)
+set BUILDDIR=_build
+set ALLSPHINXOPTS=-d %BUILDDIR%/doctrees %SPHINXOPTS% .
+set I18NSPHINXOPTS=%SPHINXOPTS% .
+if NOT "%PAPER%" == "" (
+	set ALLSPHINXOPTS=-D latex_paper_size=%PAPER% %ALLSPHINXOPTS%
+	set I18NSPHINXOPTS=-D latex_paper_size=%PAPER% %I18NSPHINXOPTS%
+)
+
+if "%1" == "" goto help
+
+if "%1" == "help" (
+	:help
+	echo.Please use `make ^<target^>` where ^<target^> is one of
+	echo.  html       to make standalone HTML files
+	echo.  dirhtml    to make HTML files named index.html in directories
+	echo.  singlehtml to make a single large HTML file
+	echo.  pickle     to make pickle files
+	echo.  json       to make JSON files
+	echo.  htmlhelp   to make HTML files and a HTML help project
+	echo.  qthelp     to make HTML files and a qthelp project
+	echo.  devhelp    to make HTML files and a Devhelp project
+	echo.  epub       to make an epub
+	echo.  latex      to make LaTeX files, you can set PAPER=a4 or PAPER=letter
+	echo.  text       to make text files
+	echo.  man        to make manual pages
+	echo.  texinfo    to make Texinfo files
+	echo.  gettext    to make PO message catalogs
+	echo.  changes    to make an overview over all changed/added/deprecated items
+	echo.  linkcheck  to check all external links for integrity
+	echo.  doctest    to run all doctests embedded in the documentation if enabled
+	goto end
+)
+
+if "%1" == "clean" (
+	for /d %%i in (%BUILDDIR%\*) do rmdir /q /s %%i
+	del /q /s %BUILDDIR%\*
+	goto end
+)
+
+if "%1" == "html" (
+	%SPHINXBUILD% -b html %ALLSPHINXOPTS% %BUILDDIR%/html
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The HTML pages are in %BUILDDIR%/html.
+	goto end
+)
+
+if "%1" == "dirhtml" (
+	%SPHINXBUILD% -b dirhtml %ALLSPHINXOPTS% %BUILDDIR%/dirhtml
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The HTML pages are in %BUILDDIR%/dirhtml.
+	goto end
+)
+
+if "%1" == "singlehtml" (
+	%SPHINXBUILD% -b singlehtml %ALLSPHINXOPTS% %BUILDDIR%/singlehtml
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The HTML pages are in %BUILDDIR%/singlehtml.
+	goto end
+)
+
+if "%1" == "pickle" (
+	%SPHINXBUILD% -b pickle %ALLSPHINXOPTS% %BUILDDIR%/pickle
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished; now you can process the pickle files.
+	goto end
+)
+
+if "%1" == "json" (
+	%SPHINXBUILD% -b json %ALLSPHINXOPTS% %BUILDDIR%/json
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished; now you can process the JSON files.
+	goto end
+)
+
+if "%1" == "htmlhelp" (
+	%SPHINXBUILD% -b htmlhelp %ALLSPHINXOPTS% %BUILDDIR%/htmlhelp
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished; now you can run HTML Help Workshop with the ^
+.hhp project file in %BUILDDIR%/htmlhelp.
+	goto end
+)
+
+if "%1" == "qthelp" (
+	%SPHINXBUILD% -b qthelp %ALLSPHINXOPTS% %BUILDDIR%/qthelp
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished; now you can run "qcollectiongenerator" with the ^
+.qhcp project file in %BUILDDIR%/qthelp, like this:
+	echo.^> qcollectiongenerator %BUILDDIR%\qthelp\.qhcp
+	echo.To view the help file:
+	echo.^> assistant -collectionFile %BUILDDIR%\qthelp\.ghc
+	goto end
+)
+
+if "%1" == "devhelp" (
+	%SPHINXBUILD% -b devhelp %ALLSPHINXOPTS% %BUILDDIR%/devhelp
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished.
+	goto end
+)
+
+if "%1" == "epub" (
+	%SPHINXBUILD% -b epub %ALLSPHINXOPTS% %BUILDDIR%/epub
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The epub file is in %BUILDDIR%/epub.
+	goto end
+)
+
+if "%1" == "latex" (
+	%SPHINXBUILD% -b latex %ALLSPHINXOPTS% %BUILDDIR%/latex
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished; the LaTeX files are in %BUILDDIR%/latex.
+	goto end
+)
+
+if "%1" == "text" (
+	%SPHINXBUILD% -b text %ALLSPHINXOPTS% %BUILDDIR%/text
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The text files are in %BUILDDIR%/text.
+	goto end
+)
+
+if "%1" == "man" (
+	%SPHINXBUILD% -b man %ALLSPHINXOPTS% %BUILDDIR%/man
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The manual pages are in %BUILDDIR%/man.
+	goto end
+)
+
+if "%1" == "texinfo" (
+	%SPHINXBUILD% -b texinfo %ALLSPHINXOPTS% %BUILDDIR%/texinfo
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The Texinfo files are in %BUILDDIR%/texinfo.
+	goto end
+)
+
+if "%1" == "gettext" (
+	%SPHINXBUILD% -b gettext %I18NSPHINXOPTS% %BUILDDIR%/locale
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Build finished. The message catalogs are in %BUILDDIR%/locale.
+	goto end
+)
+
+if "%1" == "changes" (
+	%SPHINXBUILD% -b changes %ALLSPHINXOPTS% %BUILDDIR%/changes
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.The overview file is in %BUILDDIR%/changes.
+	goto end
+)
+
+if "%1" == "linkcheck" (
+	%SPHINXBUILD% -b linkcheck %ALLSPHINXOPTS% %BUILDDIR%/linkcheck
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Link check complete; look for any errors in the above output ^
+or in %BUILDDIR%/linkcheck/output.txt.
+	goto end
+)
+
+if "%1" == "doctest" (
+	%SPHINXBUILD% -b doctest %ALLSPHINXOPTS% %BUILDDIR%/doctest
+	if errorlevel 1 exit /b 1
+	echo.
+	echo.Testing of doctests in the sources finished, look at the ^
+results in %BUILDDIR%/doctest/output.txt.
+	goto end
+)
+
+:end
diff --git a/python/docSRC/matlab.rst b/python/docSRC/matlab.rst
new file mode 100644
index 0000000..fb7033e
--- /dev/null
+++ b/python/docSRC/matlab.rst
@@ -0,0 +1,8 @@
+MATLAB compatibility interface: the :mod:`matlab` module
+========================================================
+
+.. automodule:: astra.matlab
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
diff --git a/python/docSRC/matrix.rst b/python/docSRC/matrix.rst
new file mode 100644
index 0000000..6f11d8a
--- /dev/null
+++ b/python/docSRC/matrix.rst
@@ -0,0 +1,8 @@
+Sparse matrices: the :mod:`matrix` module
+=========================================
+
+.. automodule:: astra.matrix
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
diff --git a/python/docSRC/projector.rst b/python/docSRC/projector.rst
new file mode 100644
index 0000000..b0854e8
--- /dev/null
+++ b/python/docSRC/projector.rst
@@ -0,0 +1,8 @@
+Projector object: the :mod:`projector` module
+=============================================
+
+.. automodule:: astra.projector
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
diff --git a/samples/s001_sinogram_par2d.m b/samples/matlab/s001_sinogram_par2d.m
index 4494e7b..4494e7b 100644
--- a/samples/s001_sinogram_par2d.m
+++ b/samples/matlab/s001_sinogram_par2d.m
diff --git a/samples/s002_data2d.m b/samples/matlab/s002_data2d.m
index a91071f..a91071f 100644
--- a/samples/s002_data2d.m
+++ b/samples/matlab/s002_data2d.m
diff --git a/samples/s003_gpu_reconstruction.m b/samples/matlab/s003_gpu_reconstruction.m
index efb5c68..efb5c68 100644
--- a/samples/s003_gpu_reconstruction.m
+++ b/samples/matlab/s003_gpu_reconstruction.m
diff --git a/samples/s004_cpu_reconstruction.m b/samples/matlab/s004_cpu_reconstruction.m
index f25cd2b..f25cd2b 100644
--- a/samples/s004_cpu_reconstruction.m
+++ b/samples/matlab/s004_cpu_reconstruction.m
diff --git a/samples/s005_3d_geometry.m b/samples/matlab/s005_3d_geometry.m
index 4b7360b..4b7360b 100644
--- a/samples/s005_3d_geometry.m
+++ b/samples/matlab/s005_3d_geometry.m
diff --git a/samples/s006_3d_data.m b/samples/matlab/s006_3d_data.m
index 32d88cc..32d88cc 100644
--- a/samples/s006_3d_data.m
+++ b/samples/matlab/s006_3d_data.m
diff --git a/samples/s007_3d_reconstruction.m b/samples/matlab/s007_3d_reconstruction.m
index fc9aca6..fc9aca6 100644
--- a/samples/s007_3d_reconstruction.m
+++ b/samples/matlab/s007_3d_reconstruction.m
diff --git a/samples/s008_gpu_selection.m b/samples/matlab/s008_gpu_selection.m
index a9e152d..a9e152d 100644
--- a/samples/s008_gpu_selection.m
+++ b/samples/matlab/s008_gpu_selection.m
diff --git a/samples/s009_projection_matrix.m b/samples/matlab/s009_projection_matrix.m
index efda0d2..efda0d2 100644
--- a/samples/s009_projection_matrix.m
+++ b/samples/matlab/s009_projection_matrix.m
diff --git a/samples/s010_supersampling.m b/samples/matlab/s010_supersampling.m
index 80f6f56..80f6f56 100644
--- a/samples/s010_supersampling.m
+++ b/samples/matlab/s010_supersampling.m
diff --git a/samples/s011_object_info.m b/samples/matlab/s011_object_info.m
index 61ecb83..61ecb83 100644
--- a/samples/s011_object_info.m
+++ b/samples/matlab/s011_object_info.m
diff --git a/samples/s012_masks.m b/samples/matlab/s012_masks.m
index d3611a6..d3611a6 100644
--- a/samples/s012_masks.m
+++ b/samples/matlab/s012_masks.m
diff --git a/samples/s013_constraints.m b/samples/matlab/s013_constraints.m
index d72195c..d72195c 100644
--- a/samples/s013_constraints.m
+++ b/samples/matlab/s013_constraints.m
diff --git a/samples/s014_FBP.m b/samples/matlab/s014_FBP.m
index b73149c..b73149c 100644
--- a/samples/s014_FBP.m
+++ b/samples/matlab/s014_FBP.m
diff --git a/samples/s015_fp_bp.m b/samples/matlab/s015_fp_bp.m
index 8cc417e..8cc417e 100644
--- a/samples/s015_fp_bp.m
+++ b/samples/matlab/s015_fp_bp.m
diff --git a/samples/s016_plots.m b/samples/matlab/s016_plots.m
index 1455c6d..1455c6d 100644
--- a/samples/s016_plots.m
+++ b/samples/matlab/s016_plots.m
diff --git a/samples/python/phantom.mat b/samples/python/phantom.mat
new file mode 100644
index 0000000..c465bbe
--- /dev/null
+++ b/samples/python/phantom.mat
diff --git a/samples/python/s001_sinogram_par2d.py b/samples/python/s001_sinogram_par2d.py
new file mode 100644
index 0000000..009d9b3
--- /dev/null
+++ b/samples/python/s001_sinogram_par2d.py
@@ -0,0 +1,60 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+
+import astra
+import numpy as np
+
+# Create a basic 256x256 square volume geometry
+vol_geom = astra.create_vol_geom(256, 256)
+
+# Create a parallel beam geometry with 180 angles between 0 and pi, and
+# 384 detector pixels of width 1.
+# For more details on available geometries, see the online help of the
+# function astra_create_proj_geom .
+proj_geom = astra.create_proj_geom('parallel', 1.0, 384, np.linspace(0,np.pi,180,False))
+
+# Load a 256x256 phantom image
+import scipy.io
+P = scipy.io.loadmat('phantom.mat')['phantom256']
+
+# Create a sinogram using the GPU.
+# Note that the first time the GPU is accessed, there may be a delay
+# of up to 10 seconds for initialization.
+proj_id = astra.create_projector('line',proj_geom,vol_geom)
+sinogram_id, sinogram = astra.create_sino(P, proj_id,useCUDA=True)
+
+import pylab
+pylab.gray()
+pylab.figure(1)
+pylab.imshow(P)
+pylab.figure(2)
+pylab.imshow(sinogram)
+pylab.show()
+
+
+# Free memory
+astra.data2d.delete(sinogram_id)
+astra.projector.delete(proj_id)
diff --git a/samples/python/s002_data2d.py b/samples/python/s002_data2d.py
new file mode 100644
index 0000000..35fb91f
--- /dev/null
+++ b/samples/python/s002_data2d.py
@@ -0,0 +1,77 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+
+import astra
+import numpy as np
+
+vol_geom = astra.create_vol_geom(256, 256)
+
+proj_geom = astra.create_proj_geom('parallel', 1.0, 384, np.linspace(0,np.pi,180,False))
+
+
+# Create volumes
+
+# initialized to zero
+v0 = astra.data2d.create('-vol', vol_geom)
+
+# initialized to 3.0
+v1 = astra.data2d.create('-vol', vol_geom, 3.0)
+
+# initialized to a matrix. A may be a single, double or logical (0/1) array.
+import scipy.io
+A = scipy.io.loadmat('phantom.mat')['phantom256']
+v2 = astra.data2d.create('-vol', vol_geom, A)
+
+
+# Projection data
+s0 = astra.data2d.create('-sino', proj_geom)
+# Initialization to a scalar or a matrix also works, exactly as with a volume.
+
+
+# Update data
+
+# set to zero
+astra.data2d.store(v0, 0)
+
+# set to a matrix
+astra.data2d.store(v2, A)
+
+
+
+# Retrieve data
+
+R = astra.data2d.get(v2)
+import pylab
+pylab.gray()
+pylab.imshow(R)
+pylab.show()
+
+
+# Free memory
+astra.data2d.delete(v0)
+astra.data2d.delete(v1)
+astra.data2d.delete(v2)
+astra.data2d.delete(s0)
diff --git a/samples/python/s003_gpu_reconstruction.py b/samples/python/s003_gpu_reconstruction.py
new file mode 100644
index 0000000..4f6ec1f
--- /dev/null
+++ b/samples/python/s003_gpu_reconstruction.py
@@ -0,0 +1,75 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+
+import astra
+import numpy as np
+
+vol_geom = astra.create_vol_geom(256, 256)
+proj_geom = astra.create_proj_geom('parallel', 1.0, 384, np.linspace(0,np.pi,180,False))
+
+# As before, create a sinogram from a phantom
+import scipy.io
+P = scipy.io.loadmat('phantom.mat')['phantom256']
+proj_id = astra.create_projector('line',proj_geom,vol_geom)
+sinogram_id, sinogram = astra.create_sino(P, proj_id,useCUDA=True)
+
+import pylab
+pylab.gray()
+pylab.figure(1)
+pylab.imshow(P)
+pylab.figure(2)
+pylab.imshow(sinogram)
+
+# Create a data object for the reconstruction
+rec_id = astra.data2d.create('-vol', vol_geom)
+
+# Set up the parameters for a reconstruction algorithm using the GPU
+cfg = astra.astra_dict('SIRT_CUDA')
+cfg['ReconstructionDataId'] = rec_id
+cfg['ProjectionDataId'] = sinogram_id
+
+# Available algorithms:
+# SIRT_CUDA, SART_CUDA, EM_CUDA, FBP_CUDA (see the FBP sample)
+
+
+# Create the algorithm object from the configuration structure
+alg_id = astra.algorithm.create(cfg)
+
+# Run 150 iterations of the algorithm
+astra.algorithm.run(alg_id, 150)
+
+# Get the result
+rec = astra.data2d.get(rec_id)
+pylab.figure(3)
+pylab.imshow(rec)
+pylab.show()
+
+# Clean up. Note that GPU memory is tied up in the algorithm object,
+# and main RAM in the data objects.
+astra.algorithm.delete(alg_id)
+astra.data2d.delete(rec_id)
+astra.data2d.delete(sinogram_id)
+astra.projector.delete(proj_id)
diff --git a/samples/python/s004_cpu_reconstruction.py b/samples/python/s004_cpu_reconstruction.py
new file mode 100644
index 0000000..8385cf8
--- /dev/null
+++ b/samples/python/s004_cpu_reconstruction.py
@@ -0,0 +1,81 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+
+import astra
+import numpy as np
+
+vol_geom = astra.create_vol_geom(256, 256)
+proj_geom = astra.create_proj_geom('parallel', 1.0, 384, np.linspace(0,np.pi,180,False))
+
+# For CPU-based algorithms, a "projector" object specifies the projection
+# model used. In this case, we use the "strip" model.
+proj_id = astra.create_projector('strip', proj_geom, vol_geom)
+
+# Create a sinogram from a phantom
+import scipy.io
+P = scipy.io.loadmat('phantom.mat')['phantom256']
+sinogram_id, sinogram = astra.create_sino(P, proj_id)
+
+import pylab
+pylab.gray()
+pylab.figure(1)
+pylab.imshow(P)
+pylab.figure(2)
+pylab.imshow(sinogram)
+
+# Create a data object for the reconstruction
+rec_id = astra.data2d.create('-vol', vol_geom)
+
+# Set up the parameters for a reconstruction algorithm using the CPU
+# The main difference with the configuration of a GPU algorithm is the
+# extra ProjectorId setting.
+cfg = astra.astra_dict('SIRT')
+cfg['ReconstructionDataId'] = rec_id
+cfg['ProjectionDataId'] = sinogram_id
+cfg['ProjectorId'] = proj_id
+
+# Available algorithms:
+# ART, SART, SIRT, CGLS, FBP
+
+
+# Create the algorithm object from the configuration structure
+alg_id = astra.algorithm.create(cfg)
+
+# Run 20 iterations of the algorithm
+# This will have a runtime in the order of 10 seconds.
+astra.algorithm.run(alg_id, 20)
+
+# Get the result
+rec = astra.data2d.get(rec_id)
+pylab.figure(3)
+pylab.imshow(rec)
+pylab.show()
+
+# Clean up.
+astra.algorithm.delete(alg_id)
+astra.data2d.delete(rec_id)
+astra.data2d.delete(sinogram_id)
+astra.projector.delete(proj_id)
diff --git a/samples/python/s005_3d_geometry.py b/samples/python/s005_3d_geometry.py
new file mode 100644
index 0000000..f43fc7e
--- /dev/null
+++ b/samples/python/s005_3d_geometry.py
@@ -0,0 +1,114 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+
+from six.moves import range
+import astra
+import numpy as np
+
+vol_geom = astra.create_vol_geom(64, 64, 64)
+
+
+# There are two main 3d projection geometry types: cone beam and parallel beam.
+# Each has a regular variant, and a 'vec' variant.
+# The 'vec' variants are completely free in the placement of source/detector,
+# while the regular variants assume circular trajectories around the z-axis.
+
+
+# -------------
+# Parallel beam
+# -------------
+
+
+# Circular
+
+# Parameters: width of detector column, height of detector row, #rows, #columns
+angles = np.linspace(0, 2*np.pi, 48, False)
+proj_geom = astra.create_proj_geom('parallel3d', 1.0, 1.0, 32, 64, angles)
+
+
+# Free
+
+# We generate the same geometry as the circular one above. 
+vectors = np.zeros((len(angles), 12))
+for i in range(len(angles)):
+  # ray direction
+  vectors[i,0] = np.sin(angles[i])
+  vectors[i,1] = -np.cos(angles[i])
+  vectors[i,2] = 0
+
+  # center of detector
+  vectors[i,3:6] = 0
+
+  # vector from detector pixel (0,0) to (0,1)
+  vectors[i,6] = np.cos(angles[i])
+  vectors[i,7] = np.sin(angles[i])
+  vectors[i,8] = 0;
+
+  # vector from detector pixel (0,0) to (1,0)
+  vectors[i,9] = 0
+  vectors[i,10] = 0
+  vectors[i,11] = 1
+
+# Parameters: #rows, #columns, vectors
+proj_geom = astra.create_proj_geom('parallel3d_vec', 32, 64, vectors)
+
+# ----------
+# Cone beam
+# ----------
+
+
+# Circular
+
+# Parameters: width of detector column, height of detector row, #rows, #columns,
+#             angles, distance source-origin, distance origin-detector
+angles = np.linspace(0, 2*np.pi, 48, False)
+proj_geom = astra.create_proj_geom('cone', 1.0, 1.0, 32, 64, angles, 1000, 0)
+
+# Free
+
+vectors = np.zeros((len(angles), 12))
+for i in range(len(angles)):
+	# source
+	vectors[i,0] = np.sin(angles[i]) * 1000
+	vectors[i,1] = -np.cos(angles[i]) * 1000
+	vectors[i,2] = 0
+
+	# center of detector
+	vectors[i,3:6] = 0
+
+	# vector from detector pixel (0,0) to (0,1)
+	vectors[i,6] = np.cos(angles[i])
+	vectors[i,7] = np.sin(angles[i])
+	vectors[i,8] = 0
+
+	# vector from detector pixel (0,0) to (1,0)
+	vectors[i,9] = 0
+	vectors[i,10] = 0
+	vectors[i,11] = 1		
+
+# Parameters: #rows, #columns, vectors
+proj_geom = astra.create_proj_geom('cone_vec', 32, 64, vectors)
+
diff --git a/samples/python/s006_3d_data.py b/samples/python/s006_3d_data.py
new file mode 100644
index 0000000..5178179
--- /dev/null
+++ b/samples/python/s006_3d_data.py
@@ -0,0 +1,76 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+
+import astra
+import numpy as np
+
+# Create a 3D volume geometry.
+# Parameter order: rows, colums, slices (y, x, z)
+vol_geom = astra.create_vol_geom(64, 48, 32)
+
+
+# Create volumes
+
+# initialized to zero
+v0 = astra.data3d.create('-vol', vol_geom)
+
+# initialized to 3.0
+v1 = astra.data3d.create('-vol', vol_geom, 3.0)
+
+# initialized to a matrix. A may be a single or double array.
+# Coordinate order: slice, row, column (z, y, x)
+A = np.zeros((32, 64, 48))
+v2 = astra.data3d.create('-vol', vol_geom, A)
+
+
+# Projection data
+
+# 2 projection directions, along x and y axis resp.
+V = np.array([[ 1,0,0, 0,0,0,  0,1,0, 0,0,1],
+      [0,1,0, 0,0,0, -1,0,0, 0,0,1]],dtype=np.float)
+# 32 rows (v), 64 columns (u)
+proj_geom = astra.create_proj_geom('parallel3d_vec', 32, 64, V)
+
+s0 = astra.data3d.create('-proj3d', proj_geom)
+
+# Initialization to a scalar or zero works exactly as with a volume.
+
+# Initialized to a matrix:
+# Coordinate order: row (v), angle, column (u)
+A = np.zeros((32, 2, 64))
+s1 = astra.data3d.create('-proj3d', proj_geom, A)
+
+
+# Retrieve data:
+R = astra.data3d.get(v1)
+
+
+# Delete all created data objects
+astra.data3d.delete(v0)
+astra.data3d.delete(v1)
+astra.data3d.delete(v2)
+astra.data3d.delete(s0)
+astra.data3d.delete(s1)
diff --git a/samples/python/s007_3d_reconstruction.py b/samples/python/s007_3d_reconstruction.py
new file mode 100644
index 0000000..40e9556
--- /dev/null
+++ b/samples/python/s007_3d_reconstruction.py
@@ -0,0 +1,77 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+
+import astra
+import numpy as np
+
+vol_geom = astra.create_vol_geom(128, 128, 128)
+
+angles = np.linspace(0, np.pi, 180,False)
+proj_geom = astra.create_proj_geom('parallel3d', 1.0, 1.0, 128, 192, angles)
+
+# Create a simple hollow cube phantom
+cube = np.zeros((128,128,128))
+cube[17:113,17:113,17:113] = 1
+cube[33:97,33:97,33:97] = 0
+
+# Create projection data from this
+proj_id, proj_data = astra.create_sino3d_gpu(cube, proj_geom, vol_geom)
+
+# Display a single projection image
+import pylab
+pylab.gray()
+pylab.figure(1)
+pylab.imshow(proj_data[:,20,:])
+
+# Create a data object for the reconstruction
+rec_id = astra.data3d.create('-vol', vol_geom)
+
+# Set up the parameters for a reconstruction algorithm using the GPU
+cfg = astra.astra_dict('SIRT3D_CUDA')
+cfg['ReconstructionDataId'] = rec_id
+cfg['ProjectionDataId'] = proj_id
+
+
+# Create the algorithm object from the configuration structure
+alg_id = astra.algorithm.create(cfg)
+
+# Run 150 iterations of the algorithm
+# Note that this requires about 750MB of GPU memory, and has a runtime
+# in the order of 10 seconds.
+astra.algorithm.run(alg_id, 150)
+
+# Get the result
+rec = astra.data3d.get(rec_id)
+pylab.figure(2)
+pylab.imshow(rec[:,:,65])
+pylab.show()
+
+
+# Clean up. Note that GPU memory is tied up in the algorithm object,
+# and main RAM in the data objects.
+astra.algorithm.delete(alg_id)
+astra.data3d.delete(rec_id)
+astra.data3d.delete(proj_id)
diff --git a/samples/python/s008_gpu_selection.py b/samples/python/s008_gpu_selection.py
new file mode 100644
index 0000000..c42e53b
--- /dev/null
+++ b/samples/python/s008_gpu_selection.py
@@ -0,0 +1,61 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+
+import astra
+import numpy as np
+
+vol_geom = astra.create_vol_geom(256, 256)
+proj_geom = astra.create_proj_geom('parallel', 1.0, 384, np.linspace(0,np.pi,180,False))
+import scipy.io
+P = scipy.io.loadmat('phantom.mat')['phantom256']
+
+proj_id = astra.create_projector('line',proj_geom,vol_geom)
+
+# Create a sinogram from a phantom, using GPU #1. (The default is #0)
+sinogram_id, sinogram = astra.create_sino(P, proj_id, useCUDA=True, gpuIndex=1)
+
+
+# Set up the parameters for a reconstruction algorithm using the GPU
+rec_id = astra.data2d.create('-vol', vol_geom)
+cfg = astra.astra_dict('SIRT_CUDA')
+cfg['ReconstructionDataId'] = rec_id
+cfg['ProjectionDataId'] = sinogram_id
+
+# Use GPU #1 for the reconstruction. (The default is #0.)
+cfg['option'] = {}
+cfg['option']['GPUindex'] = 1
+
+# Run 150 iterations of the algorithm
+alg_id = astra.algorithm.create(cfg)
+astra.algorithm.run(alg_id, 150)
+rec = astra.data2d.get(rec_id)
+
+
+# Clean up.
+astra.algorithm.delete(alg_id)
+astra.data2d.delete(rec_id)
+astra.data2d.delete(sinogram_id)
+astra.projector.delete(proj_id)
diff --git a/samples/python/s009_projection_matrix.py b/samples/python/s009_projection_matrix.py
new file mode 100644
index 0000000..c4c4557
--- /dev/null
+++ b/samples/python/s009_projection_matrix.py
@@ -0,0 +1,65 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+
+import astra
+import numpy as np
+
+vol_geom = astra.create_vol_geom(256, 256)
+proj_geom = astra.create_proj_geom('parallel', 1.0, 384, np.linspace(0,np.pi,180,False))
+
+# For CPU-based algorithms, a "projector" object specifies the projection
+# model used. In this case, we use the "line" model.
+proj_id = astra.create_projector('line', proj_geom, vol_geom)
+
+# Generate the projection matrix for this projection model.
+# This creates a matrix W where entry w_{i,j} corresponds to the
+# contribution of volume element j to detector element i.
+matrix_id = astra.projector.matrix(proj_id)
+
+# Get the projection matrix as a Scipy sparse matrix.
+W = astra.matrix.get(matrix_id)
+
+
+# Manually use this projection matrix to do a projection:
+import scipy.io
+P = scipy.io.loadmat('phantom.mat')['phantom256']
+s = W.dot(P.flatten())
+s = np.reshape(s, (len(proj_geom['ProjectionAngles']),proj_geom['DetectorCount']))
+
+import pylab
+pylab.gray()
+pylab.figure(1)
+pylab.imshow(s)
+pylab.show()
+
+# Each row of the projection matrix corresponds to a detector element.
+# Detector t for angle p is for row 1 + t + p*proj_geom.DetectorCount.
+# Each column corresponds to a volume pixel.
+# Pixel (x,y) corresponds to column 1 + x + y*vol_geom.GridColCount.
+
+
+astra.projector.delete(proj_id)
+astra.matrix.delete(matrix_id)
diff --git a/samples/python/s010_supersampling.py b/samples/python/s010_supersampling.py
new file mode 100644
index 0000000..1a337bc
--- /dev/null
+++ b/samples/python/s010_supersampling.py
@@ -0,0 +1,85 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+
+import astra
+import numpy as np
+
+vol_geom = astra.create_vol_geom(256, 256)
+proj_geom = astra.create_proj_geom('parallel', 3.0, 128, np.linspace(0,np.pi,180,False))
+import scipy.io
+P = scipy.io.loadmat('phantom.mat')['phantom256']
+
+# Because the astra.create_sino method does not have support for
+# all possible algorithm options, we manually create a sinogram
+phantom_id = astra.data2d.create('-vol', vol_geom, P)
+sinogram_id = astra.data2d.create('-sino', proj_geom)
+cfg = astra.astra_dict('FP_CUDA')
+cfg['VolumeDataId'] = phantom_id
+cfg['ProjectionDataId'] = sinogram_id
+
+# Set up 3 rays per detector element
+cfg['option'] = {}
+cfg['option']['DetectorSuperSampling'] = 3
+
+alg_id = astra.algorithm.create(cfg)
+astra.algorithm.run(alg_id)
+astra.algorithm.delete(alg_id)
+astra.data2d.delete(phantom_id)
+
+sinogram3 = astra.data2d.get(sinogram_id)
+
+import pylab
+pylab.gray()
+pylab.figure(1)
+pylab.imshow(P)
+pylab.figure(2)
+pylab.imshow(sinogram3)
+
+# Create a reconstruction, also using supersampling
+rec_id = astra.data2d.create('-vol', vol_geom)
+cfg = astra.astra_dict('SIRT_CUDA')
+cfg['ReconstructionDataId'] = rec_id
+cfg['ProjectionDataId'] = sinogram_id
+# Set up 3 rays per detector element
+cfg['option'] = {}
+cfg['option']['DetectorSuperSampling'] = 3
+
+# There is also an option for supersampling during the backprojection step.
+# This should be used if your detector pixels are smaller than the voxels.
+
+# Set up 2 rays per image pixel dimension, for 4 rays total per image pixel.
+# cfg['option']['PixelSuperSampling'] = 2
+
+
+alg_id = astra.algorithm.create(cfg)
+astra.algorithm.run(alg_id, 150)
+astra.algorithm.delete(alg_id)
+
+rec = astra.data2d.get(rec_id)
+pylab.figure(3)
+pylab.imshow(rec)
+pylab.show()
+
diff --git a/samples/python/s011_object_info.py b/samples/python/s011_object_info.py
new file mode 100644
index 0000000..02f387a
--- /dev/null
+++ b/samples/python/s011_object_info.py
@@ -0,0 +1,54 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+
+import astra
+
+# Create two volume geometries
+vol_geom1 = astra.create_vol_geom(256, 256)
+vol_geom2 = astra.create_vol_geom(512, 256)
+
+# Create volumes
+v0 = astra.data2d.create('-vol', vol_geom1)
+v1 = astra.data2d.create('-vol', vol_geom2)
+v2 = astra.data2d.create('-vol', vol_geom2)
+
+# Show the currently allocated volumes
+astra.data2d.info()
+
+
+astra.data2d.delete(v2)
+astra.data2d.info()
+
+astra.data2d.clear()
+astra.data2d.info()
+
+
+
+# The same clear and info command also work for other object types:
+astra.algorithm.info()  
+astra.data3d.info()
+astra.projector.info()
+astra.matrix.info()
diff --git a/samples/python/s012_masks.py b/samples/python/s012_masks.py
new file mode 100644
index 0000000..441d11b
--- /dev/null
+++ b/samples/python/s012_masks.py
@@ -0,0 +1,92 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+
+
+import astra
+import numpy as np
+
+# In this example we will create a reconstruction in a circular region,
+# instead of the usual rectangle.
+
+# This is done by placing a circular mask on the square reconstruction volume:
+
+c = np.linspace(-127.5,127.5,256)
+x, y = np.meshgrid(c,c)
+mask = np.array((x**2 + y**2 < 127.5**2),dtype=np.float)
+
+import pylab
+pylab.gray()
+pylab.figure(1)
+pylab.imshow(mask)
+
+vol_geom = astra.create_vol_geom(256, 256)
+proj_geom = astra.create_proj_geom('parallel', 1.0, 384, np.linspace(0,np.pi,50,False))
+
+# As before, create a sinogram from a phantom
+import scipy.io
+P = scipy.io.loadmat('phantom.mat')['phantom256']
+proj_id = astra.create_projector('line',proj_geom,vol_geom)
+sinogram_id, sinogram = astra.create_sino(P, proj_id,useCUDA=True)
+
+pylab.figure(2)
+pylab.imshow(P)
+pylab.figure(3)
+pylab.imshow(sinogram)
+
+# Create a data object for the reconstruction
+rec_id = astra.data2d.create('-vol', vol_geom)
+
+# Create a data object for the mask
+mask_id = astra.data2d.create('-vol', vol_geom, mask)
+
+# Set up the parameters for a reconstruction algorithm using the GPU
+cfg = astra.astra_dict('SIRT_CUDA')
+cfg['ReconstructionDataId'] = rec_id
+cfg['ProjectionDataId'] = sinogram_id
+cfg['option'] = {}
+cfg['option']['ReconstructionMaskId'] = mask_id
+
+# Create the algorithm object from the configuration structure
+alg_id = astra.algorithm.create(cfg)
+
+# Run 150 iterations of the algorithm
+astra.algorithm.run(alg_id, 150)
+
+# Get the result
+rec = astra.data2d.get(rec_id)
+
+pylab.figure(4)
+pylab.imshow(rec)
+
+pylab.show()
+
+# Clean up. Note that GPU memory is tied up in the algorithm object,
+# and main RAM in the data objects.
+astra.algorithm.delete(alg_id)
+astra.data2d.delete(mask_id)
+astra.data2d.delete(rec_id)
+astra.data2d.delete(sinogram_id)
+astra.projector.delete(proj_id)
diff --git a/samples/python/s013_constraints.py b/samples/python/s013_constraints.py
new file mode 100644
index 0000000..009360e
--- /dev/null
+++ b/samples/python/s013_constraints.py
@@ -0,0 +1,77 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+
+import astra
+import numpy as np
+
+# In this example we will create a reconstruction constrained to
+# greyvalues between 0 and 1
+
+vol_geom = astra.create_vol_geom(256, 256)
+proj_geom = astra.create_proj_geom('parallel', 1.0, 384, np.linspace(0,np.pi,50,False))
+
+# As before, create a sinogram from a phantom
+import scipy.io
+P = scipy.io.loadmat('phantom.mat')['phantom256']
+proj_id = astra.create_projector('line',proj_geom,vol_geom)
+sinogram_id, sinogram = astra.create_sino(P, proj_id,useCUDA=True)
+
+import pylab
+pylab.gray()
+pylab.figure(1)
+pylab.imshow(P)
+pylab.figure(2)
+pylab.imshow(sinogram)
+
+# Create a data object for the reconstruction
+rec_id = astra.data2d.create('-vol', vol_geom)
+
+# Set up the parameters for a reconstruction algorithm using the GPU
+cfg = astra.astra_dict('SIRT_CUDA')
+cfg['ReconstructionDataId'] = rec_id
+cfg['ProjectionDataId'] = sinogram_id
+cfg['option']={}
+cfg['option']['MinConstraint'] = 0
+cfg['option']['MaxConstraint'] = 1
+
+# Create the algorithm object from the configuration structure
+alg_id = astra.algorithm.create(cfg)
+
+# Run 150 iterations of the algorithm
+astra.algorithm.run(alg_id, 150)
+
+# Get the result
+rec = astra.data2d.get(rec_id)
+pylab.figure(3)
+pylab.imshow(rec)
+pylab.show()
+
+# Clean up. Note that GPU memory is tied up in the algorithm object,
+# and main RAM in the data objects.
+astra.algorithm.delete(alg_id)
+astra.data2d.delete(rec_id)
+astra.data2d.delete(sinogram_id)
+astra.projector.delete(proj_id)
diff --git a/samples/python/s014_FBP.py b/samples/python/s014_FBP.py
new file mode 100644
index 0000000..ef4afc2
--- /dev/null
+++ b/samples/python/s014_FBP.py
@@ -0,0 +1,76 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+
+import astra
+import numpy as np
+
+vol_geom = astra.create_vol_geom(256, 256)
+proj_geom = astra.create_proj_geom('parallel', 1.0, 384, np.linspace(0,np.pi,180,False))
+
+# As before, create a sinogram from a phantom
+import scipy.io
+P = scipy.io.loadmat('phantom.mat')['phantom256']
+proj_id = astra.create_projector('line',proj_geom,vol_geom)
+sinogram_id, sinogram = astra.create_sino(P, proj_id,useCUDA=True)
+
+import pylab
+pylab.gray()
+pylab.figure(1)
+pylab.imshow(P)
+pylab.figure(2)
+pylab.imshow(sinogram)
+
+# Create a data object for the reconstruction
+rec_id = astra.data2d.create('-vol', vol_geom)
+
+# create configuration 
+cfg = astra.astra_dict('FBP_CUDA')
+cfg['ReconstructionDataId'] = rec_id
+cfg['ProjectionDataId'] = sinogram_id
+cfg['FilterType'] = 'Ram-Lak'
+
+# possible values for FilterType:
+# none, ram-lak, shepp-logan, cosine, hamming, hann, tukey, lanczos,
+# triangular, gaussian, barlett-hann, blackman, nuttall, blackman-harris,
+# blackman-nuttall, flat-top, kaiser, parzen
+
+
+# Create and run the algorithm object from the configuration structure
+alg_id = astra.algorithm.create(cfg)
+astra.algorithm.run(alg_id)
+
+# Get the result
+rec = astra.data2d.get(rec_id)
+pylab.figure(3)
+pylab.imshow(rec)
+pylab.show()
+
+# Clean up. Note that GPU memory is tied up in the algorithm object,
+# and main RAM in the data objects.
+astra.algorithm.delete(alg_id)
+astra.data2d.delete(rec_id)
+astra.data2d.delete(sinogram_id)
+astra.projector.delete(proj_id)
diff --git a/samples/python/s015_fp_bp.py b/samples/python/s015_fp_bp.py
new file mode 100644
index 0000000..10c238d
--- /dev/null
+++ b/samples/python/s015_fp_bp.py
@@ -0,0 +1,86 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+
+
+# This example demonstrates using the FP and BP primitives with Matlab's lsqr
+# solver. Calls to FP (astra_create_sino_cuda) and
+# BP (astra_create_backprojection_cuda) are wrapped in a function astra_wrap,
+# and a handle to this function is passed to lsqr.
+
+# Because in this case the inputs/outputs of FP and BP have to be vectors
+# instead of images (matrices), the calls require reshaping to and from vectors.
+
+import astra
+import numpy as np
+
+# FP/BP wrapper class
+class astra_wrap(object):
+    def __init__(self,proj_geom,vol_geom):
+        self.proj_id = astra.create_projector('line',proj_geom,vol_geom)
+        self.shape = (proj_geom['DetectorCount']*len(proj_geom['ProjectionAngles']),vol_geom['GridColCount']*vol_geom['GridRowCount'])
+        self.dtype = np.float
+    
+    def matvec(self,v):
+        sid, s = astra.create_sino(np.reshape(v,(vol_geom['GridRowCount'],vol_geom['GridColCount'])),self.proj_id,useCUDA=True)
+        astra.data2d.delete(sid)
+        return s.flatten()
+    
+    def rmatvec(self,v):
+        bid, b = astra.create_backprojection(np.reshape(v,(len(proj_geom['ProjectionAngles']),proj_geom['DetectorCount'],)),self.proj_id,useCUDA=True)
+        astra.data2d.delete(bid)
+        return b.flatten()
+
+vol_geom = astra.create_vol_geom(256, 256)
+proj_geom = astra.create_proj_geom('parallel', 1.0, 384, np.linspace(0,np.pi,180,False))
+
+# Create a 256x256 phantom image
+import scipy.io
+P = scipy.io.loadmat('phantom.mat')['phantom256']
+
+# Create a sinogram using the GPU.
+proj_id = astra.create_projector('line',proj_geom,vol_geom)
+sinogram_id, sinogram = astra.create_sino(P, proj_id,useCUDA=True)
+
+# Reshape the sinogram into a vector
+b = sinogram.flatten()
+
+# Call lsqr with ASTRA FP and BP
+import scipy.sparse.linalg
+wrapper = astra_wrap(proj_geom,vol_geom)
+result = scipy.sparse.linalg.lsqr(wrapper,b,atol=1e-4,btol=1e-4,iter_lim=25)
+
+# Reshape the result into an image
+Y = np.reshape(result[0],(vol_geom['GridRowCount'], vol_geom['GridColCount']));
+
+import pylab
+pylab.gray()
+pylab.imshow(Y)
+pylab.show()
+
+astra.data2d.delete(sinogram_id)
+astra.projector.delete(proj_id)
+astra.projector.delete(wrapper.proj_id)
+
diff --git a/samples/python/s016_plots.py b/samples/python/s016_plots.py
new file mode 100644
index 0000000..cd4d98c
--- /dev/null
+++ b/samples/python/s016_plots.py
@@ -0,0 +1,86 @@
+#-----------------------------------------------------------------------
+#Copyright 2013 Centrum Wiskunde & Informatica, Amsterdam
+#
+#Author: Daniel M. Pelt
+#Contact: D.M.Pelt@cwi.nl
+#Website: http://dmpelt.github.io/pyastratoolbox/
+#
+#
+#This file is part of the Python interface to the
+#All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+#
+#The Python interface to the ASTRA Toolbox is free software: you can redistribute it and/or modify
+#it under the terms of the GNU General Public License as published by
+#the Free Software Foundation, either version 3 of the License, or
+#(at your option) any later version.
+#
+#The Python interface to the ASTRA Toolbox is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#GNU General Public License for more details.
+#
+#You should have received a copy of the GNU General Public License
+#along with the Python interface to the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+#
+#-----------------------------------------------------------------------
+
+from six.moves import range
+import astra
+import numpy as np
+
+
+vol_geom = astra.create_vol_geom(256, 256)
+proj_geom = astra.create_proj_geom('parallel', 1.0, 384, np.linspace(0,np.pi,180,False))
+
+# As before, create a sinogram from a phantom
+import scipy.io
+P = scipy.io.loadmat('phantom.mat')['phantom256']
+proj_id = astra.create_projector('line',proj_geom,vol_geom)
+sinogram_id, sinogram = astra.create_sino(P, proj_id,useCUDA=True)
+
+import pylab
+pylab.gray()
+pylab.figure(1)
+pylab.imshow(P)
+pylab.figure(2)
+pylab.imshow(sinogram)
+
+# Create a data object for the reconstruction
+rec_id = astra.data2d.create('-vol', vol_geom)
+
+# Set up the parameters for a reconstruction algorithm using the GPU
+cfg = astra.astra_dict('SIRT_CUDA')
+cfg['ReconstructionDataId'] = rec_id
+cfg['ProjectionDataId'] = sinogram_id
+
+# Create the algorithm object from the configuration structure
+alg_id = astra.algorithm.create(cfg)
+
+# Run 1500 iterations of the algorithm one at a time, keeping track of errors
+nIters = 1500
+phantom_error = np.zeros(nIters)
+residual_error = np.zeros(nIters)
+for i in range(nIters):
+  # Run a single iteration
+  astra.algorithm.run(alg_id, 1)
+  residual_error[i] = astra.algorithm.get_res_norm(alg_id)
+  rec = astra.data2d.get(rec_id)
+  phantom_error[i] = np.sqrt(((rec - P)**2).sum())
+
+# Get the result
+rec = astra.data2d.get(rec_id)
+pylab.figure(3)
+pylab.imshow(rec)
+
+pylab.figure(4)
+pylab.plot(residual_error)
+pylab.figure(5)
+pylab.plot(phantom_error)
+
+pylab.show()
+
+# Clean up.
+astra.algorithm.delete(alg_id)
+astra.data2d.delete(rec_id)
+astra.data2d.delete(sinogram_id)
+astra.projector.delete(proj_id)