** This is part of the CTSim program
** Copyright (C) 1983-2000 Kevin Rosenberg
**
-** $Id: backprojectors.cpp,v 1.15 2000/12/03 15:16:18 kevin Exp $
+** $Id: backprojectors.cpp,v 1.18 2000/12/06 15:17:51 kevin Exp $
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License (version 2) as
// PURPOSE
// Pure virtual base class for all backprojectors.
-Backproject::Backproject (const Projections& proj, ImageFile& im, const int interpType, const int interpFactor)
+Backproject::Backproject (const Projections& proj, ImageFile& im, int interpType, const int interpFactor)
: proj(proj), im(im), interpType(interpType), m_interpFactor(interpFactor)
{
detInc = proj.detInc();
}
void Backproject::errorIndexOutsideDetector (int ix, int iy, double theta, double L, int iDetPos)
-{
+{\r
+#if 1
ostringstream os;
os << "ix=" << ix << ", iy=" << iy << ", theta=" << theta << ", L=" << L << ", detinc=" << detInc << "\n";
os << "ndet=" << nDet << ", detInc=" << detInc << ", iDetCenter=" << iDetCenter << "\n";
os << "yMin=" << yMin << ", yMax=" << yMax << ", yInc=" << yInc << "\n";
os << "iDetPos index outside bounds: " << iDetPos << " [backprojector]";;
- sys_error (ERR_WARNING, os.str().c_str());
+ sys_error (ERR_WARNING, os.str().c_str());\r
+#endif
}
// Precalculates trigometric function value for each point in image for backprojection.
BackprojectTable::BackprojectTable (const Projections& proj, ImageFile& im, int interpType, const int interpFactor)
- : Backproject::Backproject (proj, im, interpType, interpFactor)
+ : Backproject (proj, im, interpType, interpFactor)
{
arrayR.initSetSize (im.nx(), im.ny());
arrayPhi.initSetSize (im.nx(), im.ny());
// Iterates in x & y direction by adding difference in L position
BackprojectDiff::BackprojectDiff (const Projections& proj, ImageFile& im, int interpType, const int interpFactor)
- : Backproject::Backproject (proj, im, interpType, interpFactor)
+ : Backproject (proj, im, interpType, interpFactor)
{
// calculate center of first pixel v[0][0]
double x = xMin + xInc / 2;
kint32 detPosColStart = nearest<kint32> ((start_r * cos (theta - start_phi) / detInc + iDetCenter) * scale);
// precalculate scaled difference for linear interpolation
- double deltaFilteredProj [nDet];
+ double* deltaFilteredProj = new double [nDet];
if (interpType == Backprojector::INTERP_LINEAR) {
for (int i = 0; i < nDet - 1; i++)
deltaFilteredProj[i] = (filteredProj[i+1] - filteredProj[i]) * dInvScale;
*pImCol++ += filteredProj[iDetPos] + (detRemainder * deltaFilteredProj[iDetPos]);
} // end for iy
} //end linear
- } // end for ix
+ } // end for ix\r
+\r
+ delete deltaFilteredProj;
}