** This is part of the CTSim program
** Copyright (c) 1983-2001 Kevin Rosenberg
**
-** $Id: backprojectors.h,v 1.19 2001/01/28 19:10:18 kevin Exp $
+** $Id: backprojectors.h,v 1.21 2001/02/11 04:56:37 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
static const int BPROJ_TRIG;
static const int BPROJ_TABLE;
static const int BPROJ_DIFF;
- static const int BPROJ_DIFF2;
- static const int BPROJ_IDIFF2;
- static const int BPROJ_IDIFF3;
+ static const int BPROJ_IDIFF;
static const int INTERP_INVALID;
static const int INTERP_NEAREST;
static const int INTERP_LINEAR;
+ static const int INTERP_CUBIC;
static const int INTERP_FREQ_PREINTERPOLATION;
#if HAVE_BSPLINE_INTERP
static const int INTERP_BSPLINE;
double im_xinc, im_yinc;
};
-class BackprojectDiff2 : public BackprojectDiff
-{
- public:
- BackprojectDiff2 (const Projections& proj, ImageFile& im, int interpID, const int interpFactor)
- : BackprojectDiff (proj, im, interpID, interpFactor)
- {}
-
- void BackprojectView (const double* const t, const double view_angle);
-};
-
-class BackprojectIntDiff2 : public BackprojectDiff
-{
- public:
- BackprojectIntDiff2 (const Projections& proj, ImageFile& im, int interpID, const int interpFactor)
- : BackprojectDiff (proj, im, interpID, interpFactor)
- {}
-
- void BackprojectView (const double* const t, const double view_angle);
-};
-
-class BackprojectIntDiff3 : public BackprojectDiff
+class BackprojectIntDiff : public BackprojectDiff
{
public:
- BackprojectIntDiff3 (const Projections& proj, ImageFile& im, int interpID, const int interpFactor)
+ BackprojectIntDiff (const Projections& proj, ImageFile& im, int interpID, const int interpFactor)
: BackprojectDiff (proj, im, interpID, interpFactor)
{}