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diff --git a/src/ParallelBeamBlobKernelProjector2D.cpp b/src/ParallelBeamBlobKernelProjector2D.cpp
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+++ b/src/ParallelBeamBlobKernelProjector2D.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/ParallelBeamBlobKernelProjector2D.h"
+
+#include <cmath>
+#include <boost/lexical_cast.hpp>
+
+#include "astra/DataProjectorPolicies.h"
+
+using namespace std;
+using namespace astra;
+
+#include "astra/ParallelBeamBlobKernelProjector2D.inl"
+
+// type of the projector, needed to register with CProjectorFactory
+std::string CParallelBeamBlobKernelProjector2D::type = "blob";
+
+//----------------------------------------------------------------------------------------
+// default constructor
+CParallelBeamBlobKernelProjector2D::CParallelBeamBlobKernelProjector2D()
+{
+	_clear();
+}
+
+//----------------------------------------------------------------------------------------
+// constructor
+CParallelBeamBlobKernelProjector2D::CParallelBeamBlobKernelProjector2D(CParallelProjectionGeometry2D* _pProjectionGeometry, 
+																	   CVolumeGeometry2D* _pReconstructionGeometry,
+																	   float32 _fBlobSize,
+																	   float32 _fBlobSampleRate,
+																	   int _iBlobSampleCount,
+																	   float32* _pfBlobValues)
+{
+	_clear();
+	initialize(_pProjectionGeometry, _pReconstructionGeometry, _fBlobSize, _fBlobSampleRate, _iBlobSampleCount, _pfBlobValues);
+}
+
+//----------------------------------------------------------------------------------------
+// destructor
+CParallelBeamBlobKernelProjector2D::~CParallelBeamBlobKernelProjector2D()
+{
+	clear();
+}
+
+//---------------------------------------------------------------------------------------
+// Clear - Constructors
+void CParallelBeamBlobKernelProjector2D::_clear()
+{
+	CProjector2D::_clear();
+	m_pfBlobValues = NULL;
+	m_iBlobSampleCount = 0;
+	m_fBlobSize = 0;
+	m_fBlobSampleRate = 0;
+	m_bIsInitialized = false;
+}
+
+//---------------------------------------------------------------------------------------
+// Clear - Public
+void CParallelBeamBlobKernelProjector2D::clear()
+{
+	CProjector2D::clear();
+	if (m_pfBlobValues) {
+		delete[] m_pfBlobValues;
+		m_pfBlobValues = NULL;
+	}
+	m_iBlobSampleCount = 0;
+	m_fBlobSize = 0;
+	m_fBlobSampleRate = 0;
+	m_bIsInitialized = false;
+}
+
+//---------------------------------------------------------------------------------------
+// Check
+bool CParallelBeamBlobKernelProjector2D::_check()
+{
+	// check base class
+	ASTRA_CONFIG_CHECK(CProjector2D::_check(), "ParallelBeamBlobKernelProjector2D", "Error in Projector2D initialization");
+
+	ASTRA_CONFIG_CHECK(dynamic_cast<CParallelProjectionGeometry2D*>(m_pProjectionGeometry), "ParallelBeamBlobKernelProjector2D", "Unsupported projection geometry");
+
+	ASTRA_CONFIG_CHECK(m_iBlobSampleCount > 0, "ParallelBeamBlobKernelProjector2D", "m_iBlobSampleCount should be strictly positive.");
+	ASTRA_CONFIG_CHECK(m_pfBlobValues, "ParallelBeamBlobKernelProjector2D", "Invalid Volume Geometry Object.");
+
+	// success
+	return true;
+}
+
+//---------------------------------------------------------------------------------------
+// Initialize, use a Config object
+bool CParallelBeamBlobKernelProjector2D::initialize(const Config& _cfg)
+{
+	ASTRA_ASSERT(_cfg.self);
+
+	// if already initialized, clear first
+	if (m_bIsInitialized) {
+		clear();
+	}
+
+	// initialization of parent class
+	if (!CProjector2D::initialize(_cfg)) {
+		return false;
+	}
+
+	// required: Kernel
+	XMLNode* node = _cfg.self->getSingleNode("Kernel");
+	ASTRA_CONFIG_CHECK(node, "BlobProjector", "No Kernel tag specified.");
+	{
+		// Required: KernelSize
+		XMLNode* node2 = node->getSingleNode("KernelSize");
+		ASTRA_CONFIG_CHECK(node2, "BlobProjector", "No Kernel/KernelSize tag specified.");
+		m_fBlobSize = boost::lexical_cast<float32>(node2->getContent());
+
+		// Required: SampleRate
+		node2 = node->getSingleNode("SampleRate");
+		ASTRA_CONFIG_CHECK(node2, "BlobProjector", "No Kernel/SampleRate tag specified.");
+		m_fBlobSampleRate = boost::lexical_cast<float32>(node2->getContent());
+	
+		// Required: SampleCount
+		node2 = node->getSingleNode("SampleCount");
+		ASTRA_CONFIG_CHECK(node2, "BlobProjector", "No Kernel/SampleCount tag specified.");
+		m_iBlobSampleCount = boost::lexical_cast<int>(node2->getContent());
+	
+		// Required: KernelValues
+		node2 = node->getSingleNode("KernelValues");
+		ASTRA_CONFIG_CHECK(node2, "BlobProjector", "No Kernel/KernelValues tag specified.");
+		vector<float32> values = node2->getContentNumericalArray();
+		ASTRA_CONFIG_CHECK(values.size() == (unsigned int)m_iBlobSampleCount, "BlobProjector", "Number of specified values doesn't match SampleCount.");
+		m_pfBlobValues = new float32[m_iBlobSampleCount];
+		for (int i = 0; i < m_iBlobSampleCount; i++) {
+			m_pfBlobValues[i] = values[i];
+		}
+
+		// Required: KernelValues
+		node2 = node->getSingleNode("KernelValuesNeg");
+		ASTRA_CONFIG_CHECK(node2, "BlobProjector", "No Kernel/KernelValuesNeg tag specified.");
+		vector<float32> values2 = node2->getContentNumericalArray();
+		ASTRA_CONFIG_CHECK(values2.size() == (unsigned int)m_iBlobSampleCount, "BlobProjector", "Number of specified values doesn't match SampleCount.");
+		m_pfBlobValuesNeg = new float32[m_iBlobSampleCount];
+		for (int i = 0; i < m_iBlobSampleCount; i++) {
+			m_pfBlobValuesNeg[i] = values2[i];
+		}
+
+	}
+
+	// success
+	m_bIsInitialized = _check();
+	return m_bIsInitialized;
+}
+
+//----------------------------------------------------------------------------------------
+// initialize
+bool CParallelBeamBlobKernelProjector2D::initialize(CParallelProjectionGeometry2D* _pProjectionGeometry, 
+													CVolumeGeometry2D* _pVolumeGeometry,
+													float32 _fBlobSize,
+													float32 _fBlobSampleRate,
+													int _iBlobSampleCount,
+													float32* _pfBlobValues)
+{
+	// if already initialized, clear first
+	if (m_bIsInitialized) {
+		clear();
+	}
+
+	ASTRA_CONFIG_CHECK(_pProjectionGeometry, "BlobProjector", "Invalid ProjectionGeometry Object");
+	ASTRA_CONFIG_CHECK(m_pVolumeGeometry, "BlobProjector", "Invalid ProjectionGeometry Object");
+	m_pProjectionGeometry = _pProjectionGeometry->clone();
+	m_pVolumeGeometry = _pVolumeGeometry->clone();
+	m_fBlobSize = _fBlobSize;
+	m_fBlobSampleRate = _fBlobSampleRate;
+	m_iBlobSampleCount = _iBlobSampleCount;
+	m_pfBlobValues = new float32[_iBlobSampleCount];
+	for (int i = 0; i <_iBlobSampleCount; i++) {
+		m_pfBlobValues[i] = _pfBlobValues[i];
+	}
+	
+	// success
+	m_bIsInitialized = _check();
+	return m_bIsInitialized;
+}
+
+//----------------------------------------------------------------------------------------
+// Get maximum amount of weights on a single ray
+int CParallelBeamBlobKernelProjector2D::getProjectionWeightsCount(int _iProjectionIndex)
+{
+	int maxDim = max(m_pVolumeGeometry->getGridRowCount(), m_pVolumeGeometry->getGridColCount());
+	return (int)(maxDim * 2 * (m_fBlobSize+2) + 1);
+}
+//----------------------------------------------------------------------------------------
+// Single Ray Weights
+void CParallelBeamBlobKernelProjector2D::computeSingleRayWeights(int _iProjectionIndex, 
+														   int _iDetectorIndex, 
+														   SPixelWeight* _pWeightedPixels,
+														   int _iMaxPixelCount, 
+														   int& _iStoredPixelCount)
+{
+	ASTRA_ASSERT(m_bIsInitialized);
+	StorePixelWeightsPolicy p(_pWeightedPixels, _iMaxPixelCount);
+	projectSingleRay(_iProjectionIndex, _iDetectorIndex, p);
+	_iStoredPixelCount = p.getStoredPixelCount();
+}
+//----------------------------------------------------------------------------------------
+// Splat a single point
+std::vector<SDetector2D> CParallelBeamBlobKernelProjector2D::projectPoint(int _iRow, int _iCol)
+{
+	float32 x = m_pVolumeGeometry->pixelColToCenterX(_iCol);
+	float32 y = m_pVolumeGeometry->pixelRowToCenterY(_iRow);
+
+	std::vector<SDetector2D> res;
+	// loop projectors and detectors
+	for (int iProjection = 0; iProjection < m_pProjectionGeometry->getProjectionAngleCount(); ++iProjection) {
+
+		// get projection angle
+		float32 theta = m_pProjectionGeometry->getProjectionAngle(iProjection);
+		if (theta >= 7*PIdiv4) theta -= 2*PI;
+		bool inverse = false;
+		if (theta >= 3*PIdiv4) {
+			theta -= PI;
+			inverse = true;
+		}
+
+		// calculate distance from the center of the voxel to the ray though the origin
+		float32 t = x * cos(theta) + y * sin(theta);
+		if (inverse) t *= -1.0f;
+
+		// calculate the offset on the detectorarray (in indices)
+		float32 d = m_pProjectionGeometry->detectorOffsetToIndexFloat(t);
+		int dmin = (int)ceil(d - m_fBlobSize);
+		int dmax = (int)floor(d + m_fBlobSize);
+
+		// add affected detectors to the list
+		for (int i = dmin; i <= dmax; ++i) {
+			if (d >= 0 && d < m_pProjectionGeometry->getDetectorCount()) {
+				SDetector2D det;
+				det.m_iAngleIndex = iProjection;
+				det.m_iDetectorIndex = i;
+				det.m_iIndex = iProjection * getProjectionGeometry()->getDetectorCount() + i;
+				res.push_back(det);
+			}
+		}
+	}
+
+	// return result vector
+	return res;
+
+}