** This is part of the CTSim program
** Copyright (C) 1983-2000 Kevin Rosenberg
**
-** $Id: projections.cpp,v 1.9 2000/07/03 11:02:06 kevin Exp $
+** $Id: projections.cpp,v 1.13 2000/07/11 10:32:44 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
*/
bool
-Projections::reconstruct (ImageFile& im, const char* const filterName, double filt_param, const char* const filterMethodName, const char* const interpName, int interp_param, const char* const backprojectName, const int trace)
+Projections::reconstruct (ImageFile& im, const char* const filterName, double filt_param, const char* const filterMethodName, const int zeropad, const char* const interpName, int interpFactor, const char* const backprojectName, const int trace)
{
int nview = m_nView;
double detInc = m_detInc;
- int n_filteredProj = m_nDet;
+ int n_filteredProj = m_nDet * interpFactor;
double filteredProj [n_filteredProj]; // filtered projections
#ifdef HAVE_BSPLINE_INTERP
int spline_order = 0, zoom_factor = 0;
if (interp_type == I_BSPLINE) {
- zoom_factor = interp_param;
+ zoom_factor = interpFactor;
spline_order = 3;
zoom_factor = 3;
n_filteredProj = (m_nDet - 1) * (zoom_factor + 1) + 1;
#endif
double filterBW = 1. / detInc;
- SignalFilter filter (filterName, filterMethodName, filterBW, m_detInc, m_nDet, filt_param, "spatial", 0);
+ SignalFilter filter (filterName, filterMethodName, filterBW, m_detInc, m_nDet, filt_param, "spatial", zeropad, interpFactor);
+ filter.setTraceLevel(trace);
+
if (filter.fail()) {
sys_error (ERR_SEVERE, "%s [Projections::reconstruct]", filter.failMessage().c_str());
return false;
#if HAVE_SGP
SGP_ID gid;
- int n_vec_filter = filter.getNFilterPoints();
- double plot_xaxis [n_vec_filter]; // array for plotting
+ int nVecFilter = filter.getNFilterPoints();
+ double plot_xaxis [nVecFilter]; // array for plotting
- if (trace > TRACE_TEXT) {
+ if (trace > TRACE_TEXT && nVecFilter > 0) {
int i;
double f;
double filterInc = filter.getFilterIncrement();
- for (i = 0, f = filter.getFilterMin(); i < n_vec_filter; i++, f += filterInc)
+ for (i = 0, f = filter.getFilterMin(); i < nVecFilter; i++, f += filterInc)
plot_xaxis[i] = f;
-
- gid = ezplot (plot_xaxis, filter.getFilter(), n_vec_filter);
- cio_put_str ("Press any key to continue");
- cio_kb_getc ();
- sgp2_close (gid);
+
+ if (filter.getFilter()) {
+ gid = ezplot (plot_xaxis, filter.getFilter(), nVecFilter);
+ cio_put_str ("Press any key to continue");
+ cio_kb_getc ();
+ sgp2_close (gid);
+ }
}
if (trace >= TRACE_TEXT) {
printf ("nview=%d, ndet=%d, det_start=%.4f, detInc=%.4f\n", m_nView, m_nDet, m_detStart, m_detInc);
}
#endif //HAVE_SGP
- Backprojector bj (*this, im, backprojectName, interpName);
+ Backprojector bj (*this, im, backprojectName, interpName, interpFactor);
if (bj.fail()) {
sys_error (ERR_SEVERE, "%s [Projections::reconstruct]", bj.failMessage().c_str());
return false;
filter.filterSignal (detval, filteredProj);
- // for (int j = 0; j < m_nDet; j++)
- // filteredProj[j] = filter.convolve (detval, detInc, j, m_nDet);
-
#ifdef HAVE_SGP
if (trace >= TRACE_PLOT) {
ezset ("clear.");
ezset ("xporigin .5.");
ezset ("xlength .5.");
ezset ("box");
+
ezset ("grid");
- gid = ezplot (filteredProj, plot_xaxis, m_nDet);
+ gid = ezplot (filteredProj, plot_xaxis, n_filteredProj);
}
#endif //HAVE_SGP