diff options
Diffstat (limited to 'src/ConeVecProjectionGeometry3D.cpp')
| -rw-r--r-- | src/ConeVecProjectionGeometry3D.cpp | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/src/ConeVecProjectionGeometry3D.cpp b/src/ConeVecProjectionGeometry3D.cpp index 29d84b7..79f56c4 100644 --- a/src/ConeVecProjectionGeometry3D.cpp +++ b/src/ConeVecProjectionGeometry3D.cpp @@ -224,9 +224,20 @@ void CConeVecProjectionGeometry3D::projectPoint(float32 fX, float32 fY, float32 int iAngleIndex, float32 &fU, float32 &fV) const { -#warning implementme - fU = 0.0f/0.0f; - fV = 0.0f/0.0f; + ASTRA_ASSERT(iAngleIndex >= 0); + ASTRA_ASSERT(iAngleIndex < m_iProjectionAngleCount); + + double fUX, fUY, fUZ, fUC; + double fVX, fVY, fVZ, fVC; + double fDX, fDY, fDZ, fDC; + + computeBP_UV_Coeffs(m_pProjectionAngles[iAngleIndex], + fUX, fUY, fUZ, fUC, fVX, fVY, fVZ, fVC, fDX, fDY, fDZ, fDC); + + // The -0.5f shifts from corner to center of detector pixels + double fD = fDX*fX + fDY*fY + fDZ*fZ + fDC; + fU = (fUX*fX + fUY*fY + fUZ*fZ + fUC) / fD - 0.5f; + fV = (fVX*fX + fVY*fY + fVZ*fZ + fVC) / fD - 0.5f; } |