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author | Willem Jan Palenstijn <WillemJan.Palenstijn@uantwerpen.be> | 2013-07-01 22:34:11 +0000 |
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committer | wpalenst <WillemJan.Palenstijn@uantwerpen.be> | 2013-07-01 22:34:11 +0000 |
commit | b2fc6c70434674d74551c3a6c01ffb3233499312 (patch) | |
tree | b17f080ebc504ab85ebb7c3d89f917fd87ce9e00 /src/Projector3D.cpp | |
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Update version to 1.3
Diffstat (limited to 'src/Projector3D.cpp')
-rw-r--r-- | src/Projector3D.cpp | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/src/Projector3D.cpp b/src/Projector3D.cpp new file mode 100644 index 0000000..f8fddf4 --- /dev/null +++ b/src/Projector3D.cpp @@ -0,0 +1,121 @@ +/* +----------------------------------------------------------------------- +Copyright 2012 iMinds-Vision Lab, University of Antwerp + +Contact: astra@ua.ac.be +Website: http://astra.ua.ac.be + + +This file is part of the +All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox"). + +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 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 ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>. + +----------------------------------------------------------------------- +$Id$ +*/ + +#include "astra/Projector3D.h" + + +namespace astra +{ + +//---------------------------------------------------------------------------------------- +// Default constructor +CProjector3D::CProjector3D() : configCheckData(0) +{ + _clear(); +} + +//---------------------------------------------------------------------------------------- +// Destructor +CProjector3D::~CProjector3D() +{ + if (m_bIsInitialized) clear(); +} + +//---------------------------------------------------------------------------------------- +// Clear for constructors +void CProjector3D::_clear() +{ + m_pProjectionGeometry = NULL; + m_pVolumeGeometry = NULL; + m_bIsInitialized = false; +} + +//---------------------------------------------------------------------------------------- +// Clear +void CProjector3D::clear() +{ + ASTRA_DELETE(m_pProjectionGeometry); + ASTRA_DELETE(m_pVolumeGeometry); + m_bIsInitialized = false; +} + +//---------------------------------------------------------------------------------------- +// Check +bool CProjector3D::_check() +{ + // projection geometry + ASTRA_CONFIG_CHECK(m_pProjectionGeometry, "Projector3D", "ProjectionGeometry3D not initialized."); + ASTRA_CONFIG_CHECK(m_pProjectionGeometry->isInitialized(), "Projector3D", "ProjectionGeometry3D not initialized."); + + // volume geometry + ASTRA_CONFIG_CHECK(m_pVolumeGeometry, "Projector3D", "VolumeGeometry3D not initialized."); + ASTRA_CONFIG_CHECK(m_pVolumeGeometry->isInitialized(), "Projector3D", "VolumeGeometry3D not initialized."); + + return true; +} + +//--------------------------------------------------------------------------------------- +// Initialize, use a Config object +bool CProjector3D::initialize(const Config& _cfg) +{ + assert(_cfg.self); + + return true; +} + +/* +bool CProjector3D::initialize(astra::CProjectionGeometry3D *, astra::CVolumeGeometry3D *) +{ + ASTRA_ASSERT(false); + + return false; +} +*/ + +//---------------------------------------------------------------------------------------- +// Weights of each detector in a projection angle +void CProjector3D::computeProjectionRayWeights(int _iProjection, SPixelWeight* _pfWeightedPixels, int* _piRayStoredPixelCount) +{ + int iPixelBufferSize = getProjectionWeightsCount(_iProjection); + + int iDetector = 0; + for(iDetector = m_pProjectionGeometry->getDetectorTotCount()-1; iDetector >= 0; --iDetector) { + int iSliceIndex = iDetector / m_pProjectionGeometry->getDetectorColCount(); + int iDetectorColIndex = iDetector % m_pProjectionGeometry->getDetectorColCount(); + + computeSingleRayWeights(_iProjection, // projector index + iSliceIndex, // slice index + iDetectorColIndex, // detector index + &_pfWeightedPixels[iDetector*iPixelBufferSize], // pixel buffer + iPixelBufferSize, // pixel buffer size + _piRayStoredPixelCount[iDetector]); // stored pixel count + } +} +//---------------------------------------------------------------------------------------- + +} // end namespace |