diff options
Diffstat (limited to 'src/ParallelProjectionGeometry3D.cpp')
| -rw-r--r-- | src/ParallelProjectionGeometry3D.cpp | 77 |
1 files changed, 2 insertions, 75 deletions
diff --git a/src/ParallelProjectionGeometry3D.cpp b/src/ParallelProjectionGeometry3D.cpp index 8b0585c..1d29ad6 100644 --- a/src/ParallelProjectionGeometry3D.cpp +++ b/src/ParallelProjectionGeometry3D.cpp @@ -1,7 +1,7 @@ /* ----------------------------------------------------------------------- -Copyright: 2010-2018, imec Vision Lab, University of Antwerp - 2014-2018, CWI, Amsterdam +Copyright: 2010-2021, imec Vision Lab, University of Antwerp + 2014-2021, CWI, Amsterdam Contact: astra@astra-toolbox.com Website: http://www.astra-toolbox.com/ @@ -215,79 +215,6 @@ CParallelProjectionGeometry2D * CParallelProjectionGeometry3D::createProjectionG return pOutput; } -void CParallelProjectionGeometry3D::backprojectPointX(int iAngleIndex, double fU, double fV, - double fX, double &fY, double &fZ) const -{ - ASTRA_ASSERT(iAngleIndex >= 0); - ASTRA_ASSERT(iAngleIndex < m_iProjectionAngleCount); - - SPar3DProjection *projs = genPar3DProjections(1, m_iDetectorColCount, m_iDetectorRowCount, - m_fDetectorSpacingX, m_fDetectorSpacingY, - &m_pfProjectionAngles[iAngleIndex]); - - SPar3DProjection &proj = projs[0]; - - double px = proj.fDetSX + fU * proj.fDetUX + fV * proj.fDetVX; - double py = proj.fDetSY + fU * proj.fDetUY + fV * proj.fDetVY; - double pz = proj.fDetSZ + fU * proj.fDetUZ + fV * proj.fDetVZ; - - double a = (fX - px) / proj.fRayX; - - fY = py + a * proj.fRayY; - fZ = pz + a * proj.fRayZ; - - delete[] projs; -} - -void CParallelProjectionGeometry3D::backprojectPointY(int iAngleIndex, double fU, double fV, - double fY, double &fX, double &fZ) const -{ - ASTRA_ASSERT(iAngleIndex >= 0); - ASTRA_ASSERT(iAngleIndex < m_iProjectionAngleCount); - - SPar3DProjection *projs = genPar3DProjections(1, m_iDetectorColCount, m_iDetectorRowCount, - m_fDetectorSpacingX, m_fDetectorSpacingY, - &m_pfProjectionAngles[iAngleIndex]); - - SPar3DProjection &proj = projs[0]; - - double px = proj.fDetSX + fU * proj.fDetUX + fV * proj.fDetVX; - double py = proj.fDetSY + fU * proj.fDetUY + fV * proj.fDetVY; - double pz = proj.fDetSZ + fU * proj.fDetUZ + fV * proj.fDetVZ; - - double a = (fY - py) / proj.fRayY; - - fX = px + a * proj.fRayX; - fZ = pz + a * proj.fRayZ; - - delete[] projs; -} - -void CParallelProjectionGeometry3D::backprojectPointZ(int iAngleIndex, double fU, double fV, - double fZ, double &fX, double &fY) const -{ - ASTRA_ASSERT(iAngleIndex >= 0); - ASTRA_ASSERT(iAngleIndex < m_iProjectionAngleCount); - - SPar3DProjection *projs = genPar3DProjections(1, m_iDetectorColCount, m_iDetectorRowCount, - m_fDetectorSpacingX, m_fDetectorSpacingY, - &m_pfProjectionAngles[iAngleIndex]); - - SPar3DProjection &proj = projs[0]; - - double px = proj.fDetSX + fU * proj.fDetUX + fV * proj.fDetVX; - double py = proj.fDetSY + fU * proj.fDetUY + fV * proj.fDetVY; - double pz = proj.fDetSZ + fU * proj.fDetUZ + fV * proj.fDetVZ; - - double a = (fZ - pz) / proj.fRayZ; - - fX = px + a * proj.fRayX; - fY = py + a * proj.fRayY; - - delete[] projs; -} - - //---------------------------------------------------------------------------------------- } // end namespace astra |