1 files changed, 121 insertions, 0 deletions
diff --git a/src/Projector3D.cpp b/src/Projector3D.cpp
new file mode 100644
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--- /dev/null
+++ b/src/Projector3D.cpp
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+/*
+-----------------------------------------------------------------------
+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