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authorWillem Jan Palenstijn <WillemJan.Palenstijn@uantwerpen.be>2013-07-01 22:34:11 +0000
committerwpalenst <WillemJan.Palenstijn@uantwerpen.be>2013-07-01 22:34:11 +0000
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Update version to 1.3
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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/>.
+
+-----------------------------------------------------------------------
+$Id$
+*/
+
+#ifndef _INC_ASTRA_PARALLELVECPROJECTIONGEOMETRY3D
+#define _INC_ASTRA_PARALLELVECPROJECTIONGEOMETRY3D
+
+#include "ProjectionGeometry3D.h"
+#include "../cuda/3d/dims3d.h"
+
+namespace astra
+{
+
+/**
+ * This class defines a 3D parallel beam projection geometry.
+ *
+ * \par XML Configuration
+ * \astra_xml_item{DetectorRowCount, int, Number of detectors for each projection.}
+ * \astra_xml_item{DetectorColCount, int, Number of detectors for each projection.}
+ *
+ * \par MATLAB example
+ * \astra_code{
+ * proj_geom = astra_struct('parallel3d_vec');\n
+ * proj_geom.DetectorRowCount = 512;\n
+ * proj_geom.DetectorColCount = 512;\n
+ * proj_geom.Vectors = V;\n
+ * }
+ *
+ * \par Vectors
+ * Vectors is a matrix containing the actual geometry. Each row corresponds
+ * to a single projection, and consists of:
+ * ( rayX, rayY, rayZ, dX, dY, dZ, uX, uY, uZ, vX, vY, vZ )
+ * ray: the ray direction
+ * d : the corner of the detector
+ * u : the vector from detector pixel (0,0) to (0,1)
+ * v : the vector from detector pixel (0,0) to (1,0)
+ */
+class _AstraExport CParallelVecProjectionGeometry3D : public CProjectionGeometry3D
+{
+protected:
+
+ SPar3DProjection *m_pProjectionAngles;
+
+public:
+
+ /** Default constructor. Sets all numeric member variables to 0 and all pointer member variables to NULL.
+ *
+ * If an object is constructed using this default constructor, it must always be followed by a call
+ * to one of the initialize() methods before the object can be used. Any use before calling initialize()
+ * is not allowed, except calling the member function isInitialized().
+ */
+ CParallelVecProjectionGeometry3D();
+
+ /** Constructor. Create an instance of the CParallelProjectionGeometry3D class.
+ *
+ * @param _iProjectionAngleCount Number of projection angles.
+ * @param _iDetectorRowCount Number of rows of detectors.
+ * @param _iDetectorColCount Number of columns detectors.
+ * @param _pProjectionAngles Pointer to an array of projection angles. The angles will be copied from this array.
+ */
+ CParallelVecProjectionGeometry3D(int _iProjectionAngleCount,
+ int _iDetectorRowCount,
+ int _iDetectorColCount,
+ const SPar3DProjection* _pProjectionAngles);
+
+ /** Copy constructor.
+ */
+ CParallelVecProjectionGeometry3D(const CParallelVecProjectionGeometry3D& _projGeom);
+
+ /** Destructor.
+ */
+ ~CParallelVecProjectionGeometry3D();
+
+ /** Initialize the geometry with a config object.
+ *
+ * @param _cfg Configuration Object
+ * @return initialization successful?
+ */
+ virtual bool initialize(const Config& _cfg);
+
+ /** Initialize the geometry. If the object has been initialized before, the object is reinitialized
+ * and memory is freed and reallocated if necessary.
+ *
+ * @param _iProjectionAngleCount Number of projection angles.
+ * @param _iDetectorRowCount Number of rows of detectors.
+ * @param _iDetectorColCount Number of columns detectors.
+ * @param _pProjectionAngles Pointer to an array of projection angles. The angles will be copied from this array.
+ */
+ bool initialize(int _iProjectionAngleCount,
+ int _iDetectorRowCount,
+ int _iDetectorColCount,
+ const SPar3DProjection* _pProjectionAngles);
+
+
+ virtual bool _check();
+
+ /** Create a hard copy.
+ */
+ virtual CProjectionGeometry3D* clone() const;
+
+ /** Return true if this geometry instance is the same as the one specified.
+ *
+ * @return true if this geometry instance is the same as the one specified.
+ */
+ virtual bool isEqual(const CProjectionGeometry3D*) const;
+
+ /** Returns true if the type of geometry defined in this class is the one specified in _sType.
+ *
+ * @param _sType geometry type to compare to.
+ * @return true if _sType == "parallel3d_vec".
+ */
+ virtual bool isOfType(const std::string& _sType) const;
+
+ /** Turn this object into an XML object.
+ *
+ * @param _sNode The XML object to fill.
+ */
+ virtual void toXML(XMLNode* _sNode) const;
+
+ /**
+ * Returns a vector giving the projection direction for a projection and detector index
+ */
+ virtual CVector3D getProjectionDirection(int _iProjectionIndex, int _iDetectorIndex) const;
+
+
+ const SPar3DProjection* getProjectionVectors() const { return m_pProjectionAngles; }
+
+
+};
+
+} // namespace astra
+
+#endif /* _INC_ASTRA_PARALLELVECPROJECTIONGEOMETRY3D */