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/*
-----------------------------------------------------------------------
Copyright: 2010-2021, imec Vision Lab, University of Antwerp
2014-2021, 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/>.
-----------------------------------------------------------------------
*/
#ifndef _INC_ASTRA_CUDAFORWARDPROJECTIONALGORITHM2
#define _INC_ASTRA_CUDAFORWARDPROJECTIONALGORITHM2
#include "Globals.h"
#include "Algorithm.h"
#ifdef ASTRA_CUDA
namespace astra {
class CProjector2D;
class CProjectionGeometry2D;
class CFloat32ProjectionData2D;
class CFloat32VolumeData2D;
/**
* \brief
* This class contains a GPU implementation of an algorithm that creates a forward projection
* of a volume object and stores it into a sinogram.
*
* \par XML Configuration
* \astra_xml_item{VolumeGeometry, integer, Geometry of the volume data.}
* \astra_xml_item{ProjectionGeometry, integer, Geometry of the projection data.}
* \astra_xml_item{VolumeDataId, integer, Identifier of the volume data object as it is stored in the DataManager.}
* \astra_xml_item{ProjectionDataId, integer, Identifier of the resulting projection data object as it is stored in the DataManager.}
*
* \par MATLAB example
* \astra_code{
* cfg = astra_struct('FP_CUDA2');\n
* cfg.VolumeGeometry = vol_geom;\n
* cfg.ProjectionGeometry = proj_geom;\n
* cfg.VolumeDataId = vol_id;\n
* cfg.ProjectionDataId = sino_id;\n
* alg_id = astra_mex_algorithm('create'\, cfg);\n
* astra_mex_algorithm('run'\, alg_id);\n
* astra_mex_algorithm('delete'\, alg_id);\n
* }
*
*/
class _AstraExport CCudaForwardProjectionAlgorithm : public CAlgorithm
{
public:
// type of the algorithm, needed to register with CAlgorithmFactory
static std::string type;
/** Default constructor, containing no code.
*/
CCudaForwardProjectionAlgorithm();
/** Destructor.
*/
virtual ~CCudaForwardProjectionAlgorithm();
/** Initialize the algorithm with a config object.
*
* @param _cfg Configuration Object
* @return initialization successful?
*/
virtual bool initialize(const Config& _cfg);
/** Initialize class.
*
* @param _pProjector Projector2D object. (Optional)
* @param _pVolume VolumeData2D object containing the phantom to compute sinogram from
* @param _pSinogram ProjectionData2D object to store sinogram data in.
* @return success
*/
bool initialize(CProjector2D* _pProjector,
CFloat32VolumeData2D* _pVolume,
CFloat32ProjectionData2D* _pSinogram);
/** Get all information parameters
*
* @return map with all boost::any object
*/
virtual std::map<std::string,boost::any> getInformation();
/** Get a single piece of information represented as a boost::any
*
* @param _sIdentifier identifier string to specify which piece of information you want
* @return boost::any object
*/
virtual boost::any getInformation(std::string _sIdentifier);
/** Perform a number of iterations.
*
* @param _iNrIterations amount of iterations to perform.
*/
virtual void run(int _iNrIterations = 0);
/** Get a description of the class.
*
* @return description string
*/
virtual std::string description() const;
/** Check this object.
*
* @return object initialized
*/
bool check();
CFloat32VolumeData2D* getVolume() { return m_pVolume; }
CFloat32ProjectionData2D* getSinogram() { return m_pSinogram; }
/**
* Sets the index of the used GPU index: first GPU has index 0
*
* @param _iGPUIndex New GPU index.
*/
void setGPUIndex(int _iGPUIndex);
protected:
//< Optional Projector2D object
CProjector2D* m_pProjector;
//< ProjectionData2D object containing the sinogram.
CFloat32ProjectionData2D* m_pSinogram;
//< VolumeData2D object containing the phantom.
CFloat32VolumeData2D* m_pVolume;
//< Index of GPU to use
int m_iGPUIndex;
//< Number of rays per detector element
int m_iDetectorSuperSampling;
void initializeFromProjector();
};
// inline functions
inline std::string CCudaForwardProjectionAlgorithm::description() const { return CCudaForwardProjectionAlgorithm::type; };
} // end namespace
#endif // ASTRA_CUDA
#endif
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