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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/>.
-----------------------------------------------------------------------
*/
#include "astra/FanFlatProjectionGeometry2D.h"
#include "astra/GeometryUtil2D.h"
#include <cstring>
#include <sstream>
using namespace std;
namespace astra
{
//----------------------------------------------------------------------------------------
// Default constructor. Sets all variables to zero.
CFanFlatProjectionGeometry2D::CFanFlatProjectionGeometry2D()
{
_clear();
m_fOriginSourceDistance = 0.0f;
m_fOriginDetectorDistance = 0.0f;
}
//----------------------------------------------------------------------------------------
// Constructor.
CFanFlatProjectionGeometry2D::CFanFlatProjectionGeometry2D(int _iProjectionAngleCount,
int _iDetectorCount,
float32 _fDetectorWidth,
const float32* _pfProjectionAngles,
float32 _fOriginSourceDistance,
float32 _fOriginDetectorDistance)
{
this->initialize(_iProjectionAngleCount,
_iDetectorCount,
_fDetectorWidth,
_pfProjectionAngles,
_fOriginSourceDistance,
_fOriginDetectorDistance);
}
//----------------------------------------------------------------------------------------
// Copy Constructor
CFanFlatProjectionGeometry2D::CFanFlatProjectionGeometry2D(const CFanFlatProjectionGeometry2D& _projGeom)
{
_clear();
this->initialize(_projGeom.m_iProjectionAngleCount,
_projGeom.m_iDetectorCount,
_projGeom.m_fDetectorWidth,
_projGeom.m_pfProjectionAngles,
_projGeom.m_fOriginSourceDistance,
_projGeom.m_fOriginDetectorDistance);
}
//----------------------------------------------------------------------------------------
// Assignment operator.
CFanFlatProjectionGeometry2D& CFanFlatProjectionGeometry2D::operator=(const CFanFlatProjectionGeometry2D& _other)
{
if (m_bInitialized)
delete[] m_pfProjectionAngles;
m_bInitialized = _other.m_bInitialized;
if (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);
m_fOriginSourceDistance = _other.m_fOriginSourceDistance;
m_fOriginDetectorDistance = _other.m_fOriginDetectorDistance;
}
return *this;
}
//----------------------------------------------------------------------------------------
// Destructor.
CFanFlatProjectionGeometry2D::~CFanFlatProjectionGeometry2D()
{
}
//----------------------------------------------------------------------------------------
// Initialization.
bool CFanFlatProjectionGeometry2D::initialize(int _iProjectionAngleCount,
int _iDetectorCount,
float32 _fDetectorWidth,
const float32* _pfProjectionAngles,
float32 _fOriginSourceDistance,
float32 _fOriginDetectorDistance)
{
m_fOriginSourceDistance = _fOriginSourceDistance;
m_fOriginDetectorDistance = _fOriginDetectorDistance;
_initialize(_iProjectionAngleCount,
_iDetectorCount,
_fDetectorWidth,
_pfProjectionAngles);
// success
m_bInitialized = _check();
return m_bInitialized;
}
//----------------------------------------------------------------------------------------
// Initialization with a Config object
bool CFanFlatProjectionGeometry2D::initialize(const Config& _cfg)
{
ASTRA_ASSERT(_cfg.self);
ConfigStackCheck<CProjectionGeometry2D> CC("FanFlatProjectionGeometry2D", this, _cfg);
// initialization of parent class
if (!CProjectionGeometry2D::initialize(_cfg))
return false;
// Required: DistanceOriginDetector
XMLNode node = _cfg.self.getSingleNode("DistanceOriginDetector");
ASTRA_CONFIG_CHECK(node, "FanFlatProjectionGeometry2D", "No DistanceOriginDetector tag specified.");
try {
m_fOriginDetectorDistance = node.getContentNumerical();
} catch (const StringUtil::bad_cast &e) {
ASTRA_CONFIG_CHECK(false, "FanFlatProjectionGeometry2D", "DistanceOriginDetector must be numerical.");
}
CC.markNodeParsed("DistanceOriginDetector");
// Required: DetectorOriginSource
node = _cfg.self.getSingleNode("DistanceOriginSource");
ASTRA_CONFIG_CHECK(node, "FanFlatProjectionGeometry2D", "No DistanceOriginSource tag specified.");
try {
m_fOriginSourceDistance = node.getContentNumerical();
} catch (const StringUtil::bad_cast &e) {
ASTRA_CONFIG_CHECK(false, "FanFlatProjectionGeometry2D", "DistanceOriginSource must be numerical.");
}
CC.markNodeParsed("DistanceOriginSource");
// success
m_bInitialized = _check();
return m_bInitialized;
}
//----------------------------------------------------------------------------------------
// Clone
CProjectionGeometry2D* CFanFlatProjectionGeometry2D::clone()
{
return new CFanFlatProjectionGeometry2D(*this);
}
//----------------------------------------------------------------------------------------
// is equal
bool CFanFlatProjectionGeometry2D::isEqual(CProjectionGeometry2D* _pGeom2) const
{
if (_pGeom2 == NULL) return false;
// try to cast argument to CFanFlatProjectionGeometry2D
CFanFlatProjectionGeometry2D* pGeom2 = dynamic_cast<CFanFlatProjectionGeometry2D*>(_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;
if (m_fOriginSourceDistance != pGeom2->m_fOriginSourceDistance) return false;
if (m_fOriginDetectorDistance != pGeom2->m_fOriginDetectorDistance) 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 CFanFlatProjectionGeometry2D::isOfType(const std::string& _sType)
{
return (_sType == "fanflat");
}
CVector3D CFanFlatProjectionGeometry2D::getProjectionDirection(int _iProjectionIndex, int _iDetectorIndex /* = 0 */)
{
CVector3D vOutput(0.0f, 0.0f, 0.0f);
// not implemented
ASTRA_ASSERT(false);
return vOutput;
}
//----------------------------------------------------------------------------------------
// Get the configuration object
Config* CFanFlatProjectionGeometry2D::getConfiguration() const
{
Config* cfg = new Config();
cfg->initialize("ProjectionGeometry2D");
cfg->self.addAttribute("type", "fanflat");
cfg->self.addChildNode("DetectorCount", getDetectorCount());
cfg->self.addChildNode("DetectorWidth", getDetectorWidth());
cfg->self.addChildNode("DistanceOriginSource", getOriginSourceDistance());
cfg->self.addChildNode("DistanceOriginDetector", getOriginDetectorDistance());
cfg->self.addChildNode("ProjectionAngles", m_pfProjectionAngles, m_iProjectionAngleCount);
return cfg;
}
//----------------------------------------------------------------------------------------
CFanFlatVecProjectionGeometry2D* CFanFlatProjectionGeometry2D::toVectorGeometry()
{
SFanProjection* vectors = genFanProjections(m_iProjectionAngleCount,
m_iDetectorCount,
m_fOriginSourceDistance,
m_fOriginDetectorDistance,
m_fDetectorWidth,
m_pfProjectionAngles);
CFanFlatVecProjectionGeometry2D* vecGeom = new CFanFlatVecProjectionGeometry2D();
vecGeom->initialize(m_iProjectionAngleCount, m_iDetectorCount, vectors);
delete[] vectors;
return vecGeom;
}
} // namespace astra
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