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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_FLOAT32PROJECTIONDATA3DMEMORY
#define _INC_ASTRA_FLOAT32PROJECTIONDATA3DMEMORY
#include "Float32Data3DMemory.h"
#include "Float32ProjectionData3D.h"
#include "ParallelProjectionGeometry2D.h" // TEMP
namespace astra {
/**
* This class represents three-dimensional Projection Data.
*
* It contains member functions for accessing this data and for performing
* elementary computations on the data.
* The data block is "owned" by the class, meaning that the class is
* responsible for deallocation of the memory involved.
*
* The projection data is stored as a series of consecutive rows, where
* each row contains the data for a single projection.
*/
class _AstraExport CFloat32ProjectionData3DMemory : public CFloat32Data3DMemory, public CFloat32ProjectionData3D {
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 init() methods before the object can be used. Any use before calling init() is not allowed,
* except calling the member function isInitialized().
*
*/
CFloat32ProjectionData3DMemory();
/**
* Constructor. Create an instance of the CFloat32ProjectionData3DMemory class without initializing the data.
*
* Memory is allocated for the data block. The allocated memory is not cleared and
* its contents after construction is undefined. Construction may be followed by a
* call to copyData() to fill the memory block.
* The size of the data is determined by the specified projection geometry object.
*
* @param _pGeometry Projection Geometry object. This object will be HARDCOPIED into this class.
*/
CFloat32ProjectionData3DMemory(CProjectionGeometry3D* _pGeometry);
/**
* Constructor. Create an instance of the CFloat32ProjectionData3DMemory class with initialization of the data.
*
* Creates an instance of the CFloat32ProjectionData3DMemory class. Memory
* is allocated for the data block and the contents of the memory pointed to by
* _pfData is copied into the allocated memory.
* The size of the data is determined by the specified projection geometry object.
*
* @param _pGeometry Projection Geometry object. This object will be HARDCOPIED into this class.
* @param _pfData pointer to a one-dimensional float32 data block
*/
CFloat32ProjectionData3DMemory(CProjectionGeometry3D* _pGeometry, float32* _pfData);
/**
* Constructor. Create an instance of the CFloat32ProjectionData3DMemory class filled with scalar data.
*
* Creates an instance of the CFloat32ProjectionData3DMemory class. Memory
* is allocated for the data block and the contents of the memory pointed to by
* _pfData is copied into the allocated memory.
* The size of the data is determined by the specified projection geometry object.
*
* @param _pGeometry Projection Geometry object. This object will be HARDCOPIED into this class.
* @param _fScalar scalar data
*/
CFloat32ProjectionData3DMemory(CProjectionGeometry3D* _pGeometry, float32 _fScalar);
/**
* Destructor.
*/
virtual ~CFloat32ProjectionData3DMemory();
/** Initialization. Initializes an instance of the CFloat32ProjectionData3DMemory class, without filling the data block.
*
* Initializes an instance of the CFloat32ProjectionData3DMemory class. Memory is allocated for the
* data block. The allocated memory is not cleared and its contents after
* construction is undefined. Initialization may be followed by a call to
* copyData() to fill the memory block. If the object has been initialized before, the
* object is reinitialized and memory is freed and reallocated if necessary.
*
* @param _pGeometry Projection Geometry of the data. This object will be HARDCOPIED into this class.
* @return Initialization of the base class successfull.
*/
bool initialize(CProjectionGeometry3D* _pGeometry);
/** Initialization. Initializes an instance of the CFloat32ProjectionData3DMemory class with scalar initialization.
*
* Initializes an instance of the CFloat32ProjectionData3DMemory class. Memory
* is allocated for the data block and the contents of the memory pointed to by
* _pfData is copied into the allocated memory. If the object has been initialized before, the
* object is reinitialized and memory is freed and reallocated if necessary.
*
* @param _pGeometry Projection Geometry of the data. This object will be HARDCOPIED into this class.
* @param _fScalar scalar value
*/
bool initialize(CProjectionGeometry3D* _pGeometry, float32 _fScalar);
/** Initialization. Initializes an instance of the CFloat32ProjectionData3DMemory class with initialization of the data block.
*
* Initializes an instance of the CFloat32ProjectionData3DMemory class. Memory
* is allocated for the data block and the contents of the memory pointed to by
* _pfData is copied into the allocated memory. If the object has been initialized before, the
* object is reinitialized and memory is freed and reallocated if necessary.
*
* @param _pGeometry Projection Geometry of the data. This object will be HARDCOPIED into this class.
* @param _pfData pointer to a one-dimensional float32 data block
*/
bool initialize(CProjectionGeometry3D* _pGeometry, const float32* _pfData);
/** Fetch a COPY of a projection of the data. Note that if you update the 2D data slice, the data in the
* 3D data object will remain unaltered. To copy the data back in the 3D-volume you must return the data by calling 'returnProjection'.
*
* @param _iProjectionNr projection number
* @return Volume data object
*/
virtual CFloat32VolumeData2D* fetchProjection(int _iProjectionNr) const;
/** Return a projection slice to the 3D data. The data will be deleted. If the slice was fetched with
* 'fetchProjection', the data will be stored first.
*
* @param _iProjectionNr projection number
* @param _pProjection 2D Projection image
*/
virtual void returnProjection(int _iProjectionNr, CFloat32VolumeData2D* _pProjection);
/** Fetch a COPY of a sinogram slice of the data. Note that if you update the 2D data slice, the data in the
* 3D data object will remain unaltered. To copy the data back in the 3D-volume you must return the data by calling 'returnSlice'.
*
* @param _iSliceNr slice number
* @return Sinogram data object
*/
virtual CFloat32ProjectionData2D* fetchSinogram(int _iSliceNr) const;
/** This SLOW function returns a detector value stored a specific index in the array.
* Reading values in this way might cause a lot of unnecessary memory operations, don't
* use it in time-critical code.
*
* @param _iIndex Index in the array if the data were stored completely in main memory
* @return The value the location specified by _iIndex
*/
virtual float32 getDetectorValue(int _iIndex);
/** This SLOW function stores a detector value at a specific index in the array.
* Writing values in this way might cause a lot of unnecessary memory operations, don't
* use it in time-critical code.
*
* @param _iIndex Index in the array if the data were stored completely in main memory
* @param _fValue The value to be stored at the location specified by _iIndex
*/
virtual void setDetectorValue(int _iIndex, float32 _fValue);
/** Return a sinogram slice to the 3d data. The data will be stored in the 3D Data object.
*
* @param _iSliceNr slice number
* @param _pSinogram2D 2D Sinogram Object.
*/
virtual void returnSinogram(int _iSliceNr, CFloat32ProjectionData2D* _pSinogram2D);
/** Which type is this class?
*
* @return DataType: PROJECTION
*/
virtual EDataType getType() const;
/**
* Overloaded Operator: data = data (pointwise)
*
* @param _dataIn r-value
* @return l-value
*/
CFloat32ProjectionData3DMemory& operator=(const CFloat32ProjectionData3DMemory& _dataIn);
};
//----------------------------------------------------------------------------------------
//----------------------------------------------------------------------------------------
// Get type.
inline CFloat32Data3D::EDataType CFloat32ProjectionData3DMemory::getType() const
{
return PROJECTION;
}
//----------------------------------------------------------------------------------------
} // end namespace astra
#endif // _INC_ASTRA_FLOAT32PROJECTIONDATA3DMEMORY
|
