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/*
-----------------------------------------------------------------------
Copyright: 2010-2015, iMinds-Vision Lab, University of Antwerp
2014-2015, CWI, Amsterdam
Contact: astra@uantwerpen.be
Website: http://sf.net/projects/astra-toolbox
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/>.
-----------------------------------------------------------------------
$Id$
*/
#include "astra/ParallelProjectionGeometry2D.h"
#include <boost/lexical_cast.hpp>
#include <cstring>
using namespace std;
namespace astra
{
//----------------------------------------------------------------------------------------
// Default constructor.
CParallelProjectionGeometry2D::CParallelProjectionGeometry2D() :
CProjectionGeometry2D()
{
}
//----------------------------------------------------------------------------------------
// Constructor.
CParallelProjectionGeometry2D::CParallelProjectionGeometry2D(int _iProjectionAngleCount,
int _iDetectorCount,
float32 _fDetectorWidth,
const float32* _pfProjectionAngles,
const float32* _pfExtraDetectorOffsets)
{
_clear();
initialize(_iProjectionAngleCount,
_iDetectorCount,
_fDetectorWidth,
_pfProjectionAngles,
_pfExtraDetectorOffsets);
}
//----------------------------------------------------------------------------------------
CParallelProjectionGeometry2D::CParallelProjectionGeometry2D(const CParallelProjectionGeometry2D& _projGeom)
{
_clear();
initialize(_projGeom.m_iProjectionAngleCount,
_projGeom.m_iDetectorCount,
_projGeom.m_fDetectorWidth,
_projGeom.m_pfProjectionAngles);
}
//----------------------------------------------------------------------------------------
CParallelProjectionGeometry2D& CParallelProjectionGeometry2D::operator=(const CParallelProjectionGeometry2D& _other)
{
if (m_bInitialized)
delete[] m_pfProjectionAngles;
m_bInitialized = _other.m_bInitialized;
if (_other.m_bInitialized) {
m_iProjectionAngleCount = _other.m_iProjectionAngleCount;
m_iDetectorCount = _other.m_iDetectorCount;
m_fDetectorWidth = _other.m_fDetectorWidth;
m_pfProjectionAngles = new float32[m_iProjectionAngleCount];
memcpy(m_pfProjectionAngles, _other.m_pfProjectionAngles, sizeof(float32)*m_iProjectionAngleCount);
}
return *this;
}
//----------------------------------------------------------------------------------------
// Destructor.
CParallelProjectionGeometry2D::~CParallelProjectionGeometry2D()
{
}
//---------------------------------------------------------------------------------------
// Initialize - Config
bool CParallelProjectionGeometry2D::initialize(const Config& _cfg)
{
ASTRA_ASSERT(_cfg.self);
ConfigStackCheck<CProjectionGeometry2D> CC("ParallelProjectionGeometry2D", this, _cfg);
// initialization of parent class
CProjectionGeometry2D::initialize(_cfg);
// success
m_bInitialized = _check();
return m_bInitialized;
}
//----------------------------------------------------------------------------------------
// Initialization.
bool CParallelProjectionGeometry2D::initialize(int _iProjectionAngleCount,
int _iDetectorCount,
float32 _fDetectorWidth,
const float32* _pfProjectionAngles,
const float32* _pfExtraDetectorOffsets)
{
_initialize(_iProjectionAngleCount,
_iDetectorCount,
_fDetectorWidth,
_pfProjectionAngles,
_pfExtraDetectorOffsets);
// success
m_bInitialized = _check();
return m_bInitialized;
}
//----------------------------------------------------------------------------------------
// Clone
CProjectionGeometry2D* CParallelProjectionGeometry2D::clone()
{
return new CParallelProjectionGeometry2D(*this);
}
//----------------------------------------------------------------------------------------
// is equal
bool CParallelProjectionGeometry2D::isEqual(CProjectionGeometry2D* _pGeom2) const
{
if (_pGeom2 == NULL) return false;
// try to cast argument to CParallelProjectionGeometry2D
CParallelProjectionGeometry2D* pGeom2 = dynamic_cast<CParallelProjectionGeometry2D*>(_pGeom2);
if (pGeom2 == NULL) return false;
// both objects must be initialized
if (!m_bInitialized || !pGeom2->m_bInitialized) return false;
// check all values
if (m_iProjectionAngleCount != pGeom2->m_iProjectionAngleCount) return false;
if (m_iDetectorCount != pGeom2->m_iDetectorCount) return false;
if (m_fDetectorWidth != pGeom2->m_fDetectorWidth) return false;
for (int i = 0; i < m_iProjectionAngleCount; ++i) {
// if (m_pfProjectionAngles[i] != pGeom2->m_pfProjectionAngles[i]) return false;
}
return true;
}
//----------------------------------------------------------------------------------------
// is of type
bool CParallelProjectionGeometry2D::isOfType(const std::string& _sType)
{
return (_sType == "parallel");
}
//----------------------------------------------------------------------------------------
// Get the configuration object
Config* CParallelProjectionGeometry2D::getConfiguration() const
{
Config* cfg = new Config();
cfg->initialize("ProjectionGeometry2D");
cfg->self.addAttribute("type", "parallel");
cfg->self.addChildNode("DetectorCount", getDetectorCount());
cfg->self.addChildNode("DetectorWidth", getDetectorWidth());
cfg->self.addChildNode("ProjectionAngles", m_pfProjectionAngles, m_iProjectionAngleCount);
return cfg;
}
//----------------------------------------------------------------------------------------
CVector3D CParallelProjectionGeometry2D::getProjectionDirection(int _iProjectionIndex, int _iDetectorIndex /* = 0 */)
{
CVector3D vOutput;
float32 fProjectionAngle = getProjectionAngle(_iProjectionIndex);
vOutput.setX(cosf(fProjectionAngle));
vOutput.setY(sinf(fProjectionAngle));
vOutput.setZ(0.0f);
return vOutput;
}
//----------------------------------------------------------------------------------------
CParallelVecProjectionGeometry2D* CParallelProjectionGeometry2D::toVectorGeometry()
{
SParProjection* vectors = new SParProjection[m_iProjectionAngleCount];
for (int i = 0; i < m_iProjectionAngleCount; ++i)
{
vectors[i].fRayX = sinf(m_pfProjectionAngles[i]);
vectors[i].fRayY = -cosf(m_pfProjectionAngles[i]);
vectors[i].fDetUX = cosf(m_pfProjectionAngles[i]) * m_fDetectorWidth;
vectors[i].fDetUY = sinf(m_pfProjectionAngles[i]) * m_fDetectorWidth;
vectors[i].fDetSX = -0.5f * m_iDetectorCount * vectors[i].fDetUX;
vectors[i].fDetSY = -0.5f * m_iDetectorCount * vectors[i].fDetUY;
}
CParallelVecProjectionGeometry2D* vecGeom = new CParallelVecProjectionGeometry2D();
vecGeom->initialize(m_iProjectionAngleCount, m_iDetectorCount, vectors);
delete[] vectors;
return vecGeom;
}
} // end namespace astra
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