r186: *** empty log message ***

[ctsim.git] / include / backprojectors.h

diff --git a/include/backprojectors.h b/include/backprojectors.h
index 1781fe18b5f2c60a519edd6153eaade5c7c3f755..b36dfb83cefbb7ef776ef5d4e2da3871e378a9ff 100644 (file)
--- 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 1.14 2000/08/31 08:38:58 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
@@ -132,6 +132,7 @@ class Backproject
     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);
@@ -158,7 +159,7 @@ class BackprojectTable : public Backproject
 
   void BackprojectView (const double* const t, double view_angle);
 
- private:
+ protected:
   Array2d<kfloat64> arrayR;
   Array2d<kfloat64> arrayPhi;
   kfloat64** r;
@@ -211,5 +212,25 @@ class BackprojectIntDiff3 : public BackprojectDiff
   void BackprojectView (const double* const t, double view_angle);
 };
 
+class BackprojectEquilinear : public BackprojectTable
+{
+ public:
+  BackprojectEquilinear (const Projections& proj, ImageFile& im, int interpID, const int interpFactor)
+      : BackprojectTable::BackprojectTable (proj, im, interpID, interpFactor)
+      {}
+
+  void BackprojectView (const double* const t, double view_angle);
+};
+
+class BackprojectEquiangular : public BackprojectTable
+{
+ public:
+  BackprojectEquiangular (const Projections& proj, ImageFile& im, int interpID, const int interpFactor)
+      : BackprojectTable::BackprojectTable (proj, im, interpID, interpFactor)
+      {}
+
+  void BackprojectView (const double* const t, double view_angle);
+};
+
 
 #endif