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/*
-----------------------------------------------------------------------
Copyright: 2010-2016, iMinds-Vision Lab, University of Antwerp
2014-2016, CWI, Amsterdam
Contact: astra@uantwerpen.be
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/ProjectionGeometry3D.h"
using namespace std;
namespace astra
{
//----------------------------------------------------------------------------------------
// Check all variable values.
bool CProjectionGeometry3D::_check()
{
ASTRA_CONFIG_CHECK(m_iDetectorRowCount > 0, "ProjectionGeometry3D", "DetectorRowCount should be positive.");
ASTRA_CONFIG_CHECK(m_iDetectorColCount > 0, "ProjectionGeometry3D", "DetectorColCount should be positive.");
ASTRA_CONFIG_CHECK(m_fDetectorSpacingX > 0.0f, "ProjectionGeometry3D", "m_fDetectorSpacingX should be positive.");
ASTRA_CONFIG_CHECK(m_fDetectorSpacingY > 0.0f, "ProjectionGeometry3D", "m_fDetectorSpacingY should be positive.");
ASTRA_CONFIG_CHECK(m_iProjectionAngleCount > 0, "ProjectionGeometry3D", "ProjectionAngleCount should be positive.");
ASTRA_CONFIG_CHECK(m_pfProjectionAngles != NULL, "ProjectionGeometry3D", "ProjectionAngles not initialized");
/*
// autofix: angles in [0,2pi[
for (int i = 0; i < m_iProjectionAngleCount; i++) {
while (2*PI <= m_pfProjectionAngles[i]) m_pfProjectionAngles[i] -= 2*PI;
while (m_pfProjectionAngles[i] < 0) m_pfProjectionAngles[i] += 2*PI;
}
*/
// succes
return true;
}
//----------------------------------------------------------------------------------------
// Default constructor.
CProjectionGeometry3D::CProjectionGeometry3D() : configCheckData(0)
{
_clear();
}
//----------------------------------------------------------------------------------------
// Constructor.
CProjectionGeometry3D::CProjectionGeometry3D(int _iAngleCount,
int _iDetectorRowCount,
int _iDetectorColCount,
float32 _fDetectorSpacingX,
float32 _fDetectorSpacingY,
const float32 *_pfProjectionAngles) : configCheckData(0)
{
_clear();
_initialize(_iAngleCount,
_iDetectorRowCount,
_iDetectorColCount,
_fDetectorSpacingX,
_fDetectorSpacingY,
_pfProjectionAngles);
}
//----------------------------------------------------------------------------------------
// Copy constructor.
CProjectionGeometry3D::CProjectionGeometry3D(const CProjectionGeometry3D& _projGeom)
{
_clear();
_initialize(_projGeom.m_iProjectionAngleCount,
_projGeom.m_iDetectorRowCount,
_projGeom.m_iDetectorColCount,
_projGeom.m_fDetectorSpacingX,
_projGeom.m_fDetectorSpacingY,
_projGeom.m_pfProjectionAngles);
}
//----------------------------------------------------------------------------------------
// Destructor.
CProjectionGeometry3D::~CProjectionGeometry3D()
{
if (m_bInitialized) {
clear();
}
}
//----------------------------------------------------------------------------------------
// Clear all member variables, setting all numeric variables to 0 and all pointers to NULL.
// Should only be used by constructors. Otherwise use the clear() function.
void CProjectionGeometry3D::_clear()
{
m_iProjectionAngleCount = 0;
m_iDetectorRowCount = 0;
m_iDetectorColCount = 0;
m_fDetectorSpacingX = 0.0f;
m_fDetectorSpacingY = 0.0f;
m_pfProjectionAngles = NULL;
m_bInitialized = false;
}
//----------------------------------------------------------------------------------------
// Clear all member variables, setting all numeric variables to 0 and all pointers to NULL.
void CProjectionGeometry3D::clear()
{
m_iProjectionAngleCount = 0;
m_iDetectorRowCount = 0;
m_iDetectorColCount = 0;
m_fDetectorSpacingX = 0.0f;
m_fDetectorSpacingY = 0.0f;
if (m_pfProjectionAngles != NULL) {
delete [] m_pfProjectionAngles;
}
m_pfProjectionAngles = NULL;
m_bInitialized = false;
}
//----------------------------------------------------------------------------------------
// Initialization witha Config object
bool CProjectionGeometry3D::initialize(const Config& _cfg)
{
ASTRA_ASSERT(_cfg.self);
ConfigStackCheck<CProjectionGeometry3D> CC("ProjectionGeometry3D", this, _cfg);
if (m_bInitialized) {
clear();
}
ASTRA_ASSERT(_cfg.self);
// Required: DetectorWidth
XMLNode node = _cfg.self.getSingleNode("DetectorSpacingX");
ASTRA_CONFIG_CHECK(node, "ProjectionGeometry3D", "No DetectorSpacingX tag specified.");
m_fDetectorSpacingX = node.getContentNumerical();
CC.markNodeParsed("DetectorSpacingX");
// Required: DetectorHeight
node = _cfg.self.getSingleNode("DetectorSpacingY");
ASTRA_CONFIG_CHECK(node, "ProjectionGeometry3D", "No DetectorSpacingY tag specified.");
m_fDetectorSpacingY = node.getContentNumerical();
CC.markNodeParsed("DetectorSpacingY");
// Required: DetectorRowCount
node = _cfg.self.getSingleNode("DetectorRowCount");
ASTRA_CONFIG_CHECK(node, "ProjectionGeometry3D", "No DetectorRowCount tag specified.");
m_iDetectorRowCount = node.getContentInt();
CC.markNodeParsed("DetectorRowCount");
// Required: DetectorCount
node = _cfg.self.getSingleNode("DetectorColCount");
ASTRA_CONFIG_CHECK(node, "ProjectionGeometry3D", "No DetectorColCount tag specified.");
m_iDetectorColCount = node.getContentInt();
m_iDetectorTotCount = m_iDetectorRowCount * m_iDetectorColCount;
CC.markNodeParsed("DetectorColCount");
// Required: ProjectionAngles
node = _cfg.self.getSingleNode("ProjectionAngles");
ASTRA_CONFIG_CHECK(node, "ProjectionGeometry3D", "No ProjectionAngles tag specified.");
vector<float32> angles = node.getContentNumericalArray();
m_iProjectionAngleCount = angles.size();
ASTRA_CONFIG_CHECK(m_iProjectionAngleCount > 0, "ProjectionGeometry3D", "Not enough ProjectionAngles specified.");
m_pfProjectionAngles = new float32[m_iProjectionAngleCount];
for (int i = 0; i < m_iProjectionAngleCount; i++) {
m_pfProjectionAngles[i] = angles[i];
}
CC.markNodeParsed("ProjectionAngles");
// Interface class, so don't return true
return false;
}
//----------------------------------------------------------------------------------------
// Initialization.
bool CProjectionGeometry3D::_initialize(int _iProjectionAngleCount,
int _iDetectorRowCount,
int _iDetectorColCount,
float32 _fDetectorSpacingX,
float32 _fDetectorSpacingY,
const float32 *_pfProjectionAngles)
{
if (m_bInitialized) {
clear();
}
// copy parameters
m_iProjectionAngleCount = _iProjectionAngleCount;
m_iDetectorRowCount = _iDetectorRowCount;
m_iDetectorColCount = _iDetectorColCount;
m_iDetectorTotCount = _iDetectorRowCount * _iDetectorColCount;
m_fDetectorSpacingX = _fDetectorSpacingX;
m_fDetectorSpacingY = _fDetectorSpacingY;
m_pfProjectionAngles = new float32[m_iProjectionAngleCount];
for (int i = 0; i < m_iProjectionAngleCount; i++) {
m_pfProjectionAngles[i] = _pfProjectionAngles[i];
}
m_iDetectorTotCount = m_iProjectionAngleCount * m_iDetectorRowCount * m_iDetectorColCount;
// Interface class, so don't return true
return false;
}
} // namespace astra
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