X-Git-Url: http://git.kpe.io/?a=blobdiff_plain;f=libctsim%2Freconstr.cpp;fp=libctsim%2Freconstr.cpp;h=0000000000000000000000000000000000000000;hb=2d39e823ba389fc68e5317c422b55be006094252;hp=9c887800c8f32fcf7a5e5fae1c4982f1f0794836;hpb=a95e41ac40cd2f3a4401d921618604cf33f2a904;p=ctsim.git

diff --git a/libctsim/reconstr.cpp b/libctsim/reconstr.cpp
deleted file mode 100644
index 9c88780..0000000
--- a/libctsim/reconstr.cpp
+++ /dev/null
@@ -1,170 +0,0 @@
-/*****************************************************************************
-** FILE IDENTIFICATION
-**
-**	Name:	      rec_t.c		Image Reconstruction Procedures
-**	Programmer:   Kevin Rosenberg
-**	Date Started: Aug 84
-**
-** GLOBAL FUNCTIONS
-**	proj_reconst()		Reconstruct Image from Projections
-**
-**  This is part of the CTSim program
-**  Copyright (C) 1983-2000 Kevin Rosenberg
-**
-**  $Id: reconstr.cpp,v 1.2 2000/06/20 17:54:51 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
-**  published by the Free Software Foundation.
-**
-**  This program 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 this program; if not, write to the Free Software
-**  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-******************************************************************************/
-
-#include "ct.h"
-
-
-/* NAME
- *   proj_reconst			Reconstruct Image from Projections
- *
- * SYNOPSIS
- *   im = proj_reconst (im, proj, filt_type, filt_param, interp_type)
- *   IMAGE *im				Output image
- *   RAYSUM *proj				Raysum data if in memory
- *   int filt_type			Type of convolution filter to use
- *   double filt_param			Filter specific parameter
- *					Currently, used only with Hamming filters
- *   int interp_type			Type of interpolation method to use
- *
- * ALGORITHM
- *
- *	Calculate one-dimensional filter in spatial domain
- *	Allocate & clear (zero) the 2d output image array
- *      For each projection view
- *	    Convolve raysum array with filter
- *	    Backproject raysums and add (summate) to image array
- *      end
- */
-
-ImageFile&
-proj_reconst (ImageFile& im, Projections& proj, const FilterType filt_type, double filt_param, InterpolationType interp_type, int interp_param, const BackprojType backproj_type, const int trace)
-{
-  int ndet = proj.nDet();
-  int nview = proj.nView();
-  double det_inc = proj.detInc();
-  double detlen = (ndet - 1) * det_inc;
-  int n_filtered_proj = ndet;
-  double filtered_proj [n_filtered_proj];   // convolved result
-
-#ifdef HAVE_BSPLINE_INTERP
-  int spline_order = 0, zoom_factor = 0;
-  if (interp_type == I_BSPLINE) {
-    zoom_factor = interp_param;
-    spline_order = 3;
-    zoom_factor = 3;
-    n_filtered_proj = (ndet - 1) * (zoom_factor + 1) + 1;
-  }
-#endif
-
-  int n_vec_filter = 2 * ndet - 1;
-  double filterBW = 1. / det_inc;
-  double filterMin = -detlen;
-  double filterMax = detlen;
-
-  SignalFilter filter (filt_type, filterBW, filterMin, filterMax, n_vec_filter, filt_param, D_SPATIAL, 0);
-
-#if HAVE_SGP
-  SGP_ID gid;
-  double plot_xaxis [n_vec_filter]; 			// array for plotting 
-
-  if (trace > TRACE_TEXT)  {
-    int i;
-    double f;
-    double filterInc = (filterMax - filterMin) / (n_vec_filter - 1);
-    for (i = 0, f = filterMin; i < n_vec_filter; 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 (trace >= TRACE_TEXT) {
-    printf ("nview=%d, ndet=%d, det_start=%.4f, det_inc=%.4f\n", proj.nView(), proj.nDet(), proj.detStart(), proj.detInc());
-  }
-#endif  //HAVE_SGP
-
-  Backproject* bj = selectBackprojector (backproj_type, proj, im, interp_type);
-
-  for (int iview = 0; iview < nview; iview++)  {
-    if (trace >= TRACE_TEXT) 
-      printf ("Reconstructing view %d (last = %d)\n",  iview, nview - 1);
-      
-    DetectorArray& darray = proj.getDetectorArray (iview);
-    DetectorValue* detval = darray.detValues();
-
-    for (int j = 0; j < ndet; j++)
-      filtered_proj[j] = filter.convolve (detval, det_inc, j, ndet, FUNC_BOTH);
-
-#ifdef HAVE_SGP
-    if (trace >= TRACE_PLOT)  {
-      ezset  ("clear.");
-      ezset  ("xticks major 5.");
-      ezset  ("xlabel ");
-      ezset  ("ylabel ");
-      ezset  ("xlength .5.");
-      ezset  ("box.");
-      ezset  ("grid.");
-      ezset  ("ufinish yes.");
-      ezplot (detval, plot_xaxis, proj.nDet());
-      ezset  ("clear.");
-      ezset  ("xticks major 5.");
-      ezset  ("xlabel ");
-      ezset  ("ylabel ");
-      ezset  ("ustart yes.");
-      ezset  ("xporigin .5.");
-      ezset  ("xlength .5.");
-      ezset ("box");
-      ezset ("grid");
-      gid = ezplot (filtered_proj, plot_xaxis, proj.nDet());
-    }
-#endif  //HAVE_SGP
-
-#ifdef HAVE_BSPLINE_INTERP
-    if (interp_type == I_BSPLINE) 
-	bspline (proj.nDet(), zoom_factor, spline_order, filtered_proj, filtered_proj);
-    
-#ifdef HAVE_SGP
-    if (trace >= TRACE_PLOT && interp_type == I_BSPLINE) {
-	bspline (proj.nDet(), zoom_factor, spline_order, filtered_proj, filtered_proj);
-      ezplot_1d (filtered_proj, n_filtered_proj);
-    }
-#endif
-#endif
-
-    bj->BackprojectView (filtered_proj, darray.viewAngle());
-
-#ifdef HAVE_SGP
-    if (trace >= TRACE_PLOT) {
-      char str[256];
-      printf ("Do you want to exit with current pic (y/n) -- ");
-      fgets(str, sizeof(str), stdin);
-      sgp2_close (sgp2_get_active_win());
-      if (tolower(str[0]) == 'y') {
-	break;
-      }
-    } 
-#endif  //HAVE_SGP
-  }
-
-  delete bj;
-
-  return (im);
-}
-