X-Git-Url: http://git.kpe.io/?a=blobdiff_plain;ds=sidebyside;f=include%2Fbackprojectors.h;h=c3196f67f8d32fb5967ecc811e44823f710bfb5b;hb=ee0105d74fec9d6bfd236e22e9e1d315e46c568e;hp=1781fe18b5f2c60a519edd6153eaade5c7c3f755;hpb=1e88cf0f7fa4f690ea9f110e8ed3f2b5338d0a10;p=ctsim.git

diff --git a/include/backprojectors.h b/include/backprojectors.h
index 1781fe1..c3196f6 100644
--- a/include/backprojectors.h
+++ b/include/backprojectors.h
@@ -9,7 +9,7 @@
 **  This is part of the CTSim program
 **  Copyright (C) 1983-2000 Kevin Rosenberg
 **
-**  $Id: backprojectors.h,v 1.13 2000/08/25 15:59:13 kevin Exp $
+**  $Id: backprojectors.h,v 1.17 2000/12/06 01:46:43 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
@@ -126,12 +126,13 @@ class Backproject
     kint32 nx;
     kint32 ny;
     double detInc;
-    double rotInc;
+    double rotScale;
     int iDetCenter;      	// index refering to L=0 projection 
     int nDet;
     double xMin, xMax, yMin, yMax;     // Retangular coords of phantom
     double xInc, yInc;	// size of cells
     int m_interpFactor;
+    double m_dFocalLength;
 
  private:
     Backproject (const Backproject& rhs);
@@ -143,10 +144,10 @@ class BackprojectTrig : public Backproject
 {
  public:
   BackprojectTrig (const Projections& proj, ImageFile& im, int interpID, const int interpFactor)
-      : Backproject::Backproject (proj, im, interpID, interpFactor)
+      : Backproject (proj, im, interpID, interpFactor)
       {}
 
-  void BackprojectView (const double* const t, double view_angle);
+  void BackprojectView (const double* const t, const double view_angle);
 };
 
 
@@ -154,11 +155,11 @@ class BackprojectTable : public Backproject
 {
  public:
   BackprojectTable (const Projections& proj, ImageFile& im, int interpID, const int interpFactor);
-  ~BackprojectTable ();
+  virtual ~BackprojectTable ();
 
-  void BackprojectView (const double* const t, double view_angle);
+  void BackprojectView (const double* const t, const double view_angle);
 
- private:
+ protected:
   Array2d<kfloat64> arrayR;
   Array2d<kfloat64> arrayPhi;
   kfloat64** r;
@@ -172,7 +173,7 @@ class BackprojectDiff : public Backproject
   BackprojectDiff (const Projections& proj, ImageFile& im, int interpID, const int interpFactor);
   ~BackprojectDiff ();
 
-  void BackprojectView (const double* const t, double view_angle);
+  void BackprojectView (const double* const t, const double view_angle);
 
  protected:
   double start_r;
@@ -184,20 +185,20 @@ class BackprojectDiff2 : public BackprojectDiff
 {
  public:
   BackprojectDiff2 (const Projections& proj, ImageFile& im, int interpID, const int interpFactor)
-    :  BackprojectDiff::BackprojectDiff (proj, im, interpID, interpFactor)
+    :  BackprojectDiff (proj, im, interpID, interpFactor)
     {}
 
-  void BackprojectView (const double* const t, double view_angle);
+  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::BackprojectDiff (proj, im, interpID, interpFactor)
+    :  BackprojectDiff (proj, im, interpID, interpFactor)
     {}
   
-  void BackprojectView (const double* const t, double view_angle);
+  void BackprojectView (const double* const t, const double view_angle);
 };
 
 
@@ -205,10 +206,36 @@ class BackprojectIntDiff3 : public BackprojectDiff
 {
  public:
   BackprojectIntDiff3 (const Projections& proj, ImageFile& im, int interpID, const int interpFactor)
-    :  BackprojectDiff::BackprojectDiff (proj, im, interpID, interpFactor)
+    :  BackprojectDiff (proj, im, interpID, interpFactor)
     {}
   
-  void BackprojectView (const double* const t, double view_angle);
+  void BackprojectView (const double* const t, const double view_angle);
+};
+
+class BackprojectEquilinear : public BackprojectTable
+{
+ public:
+  BackprojectEquilinear (const Projections& proj, ImageFile& im, int interpID, const int interpFactor)
+      : BackprojectTable (proj, im, interpID, interpFactor)
+      {}
+
+  void BackprojectView (const double* const t, const double view_angle);
+
+  virtual ~BackprojectEquilinear()
+      {}
+};
+
+class BackprojectEquiangular : public BackprojectTable
+{
+ public:
+  BackprojectEquiangular (const Projections& proj, ImageFile& im, int interpID, const int interpFactor)
+      : BackprojectTable (proj, im, interpID, interpFactor)
+      {}
+
+  void BackprojectView (const double* const t, const double view_angle);
+
+  virtual ~BackprojectEquiangular()
+      {}
 };