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/*
-----------------------------------------------------------------------
Copyright: 2010-2018, imec Vision Lab, University of Antwerp
2014-2018, CWI, Amsterdam
Contact: astra@astra-toolbox.com
Website: http://www.astra-toolbox.com/
This file is part of the 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/>.
-----------------------------------------------------------------------
*/
#define BOOST_TEST_DYN_LINK
#include <boost/test/unit_test.hpp>
#include <boost/test/auto_unit_test.hpp>
#include <boost/test/floating_point_comparison.hpp>
#include "astra/ParallelBeamLineKernelProjector2D.h"
#include "astra/ParallelProjectionGeometry2D.h"
#include "astra/VolumeGeometry2D.h"
struct TestParallelBeamLineKernelProjector2D {
TestParallelBeamLineKernelProjector2D()
{
astra::float32 angles[] = { 1.0f };
BOOST_REQUIRE( projGeom.initialize(1, 9, 1.0f, angles) );
BOOST_REQUIRE( volGeom.initialize(6, 4) );
BOOST_REQUIRE( proj.initialize(&projGeom, &volGeom) );
}
~TestParallelBeamLineKernelProjector2D()
{
}
astra::CParallelBeamLineKernelProjector2D proj;
astra::CParallelProjectionGeometry2D projGeom;
astra::CVolumeGeometry2D volGeom;
};
BOOST_FIXTURE_TEST_CASE( testParallelBeamLineKernelProjector2D_General, TestParallelBeamLineKernelProjector2D )
{
}
BOOST_FIXTURE_TEST_CASE( testParallelBeamLineKernelProjector2D_Rectangle, TestParallelBeamLineKernelProjector2D )
{
int iMax = proj.getProjectionWeightsCount(0);
BOOST_REQUIRE(iMax > 0);
astra::SPixelWeight* pPix = new astra::SPixelWeight[iMax];
BOOST_REQUIRE(pPix);
int iCount;
proj.computeSingleRayWeights(0, 4, pPix, iMax, iCount);
BOOST_REQUIRE(iCount <= iMax);
astra::float32 fWeight = 0;
for (int i = 0; i < iCount; ++i)
fWeight += pPix[i].m_fWeight;
BOOST_CHECK_SMALL(fWeight - 7.13037f, 0.00001f); // 6 / sin(1)
delete[] pPix;
}
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