X-Git-Url: http://git.kpe.io/?a=blobdiff_plain;f=include%2Fbackprojectors.h;h=d9144deb6144504b91d5cb14f8241cc8602c2347;hb=72615e14dd531463cea3278ff6dc19ffbbe0b06c;hp=1781fe18b5f2c60a519edd6153eaade5c7c3f755;hpb=1e88cf0f7fa4f690ea9f110e8ed3f2b5338d0a10;p=ctsim.git

diff --git a/include/backprojectors.h b/include/backprojectors.h
index 1781fe1..d9144de 100644
--- a/include/backprojectors.h
+++ b/include/backprojectors.h
@@ -7,9 +7,9 @@
 **	Date Started: June 2000
 **
 **  This is part of the CTSim program
-**  Copyright (C) 1983-2000 Kevin Rosenberg
+**  Copyright (c) 1983-2001 Kevin Rosenberg
 **
-**  $Id: backprojectors.h,v 1.13 2000/08/25 15:59:13 kevin Exp $
+**  $Id: backprojectors.h,v 1.20 2001/02/09 01:54:20 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
@@ -52,6 +52,7 @@ class Backprojector
   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;
@@ -67,7 +68,7 @@ class Backprojector
   void BackprojectView (const double* const viewData, const double viewAngle);
 
   bool fail() const {return m_fail;}
-  const string& failMessage() const {return m_failMessage;}
+  const std::string& failMessage() const {return m_failMessage;}
 
   static const int getBackprojectCount() {return s_iBackprojectCount;}
   static const char** getBackprojectNameArray() {return s_aszBackprojectName;}
@@ -85,13 +86,13 @@ class Backprojector
 
 
  private:
-  string m_nameBackproject;
-  string m_nameInterpolation;
+  std::string m_nameBackproject;
+  std::string m_nameInterpolation;
   int m_idBackproject;
   int m_idInterpolation;
   Backproject* m_pBackprojectImplem;
   bool m_fail;
-  string m_failMessage;
+  std::string m_failMessage;
 
   static const char* s_aszBackprojectName[];
   static const char* s_aszBackprojectTitle[];
@@ -126,12 +127,13 @@ 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 +145,10 @@ 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 +156,11 @@ 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 +174,7 @@ 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 +186,20 @@ 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 +207,36 @@ 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()
+      {}
 };