X-Git-Url: http://git.kpe.io/?a=blobdiff_plain;f=include%2Fprojections.h;h=39cb09a7a67446a3723a7cb06a6921bc6ddc68a7;hb=b361677a2f7d5b443641faec70b057f2a84dc77e;hp=787f325b34b7729328c04d90000da4c69ebe033e;hpb=9776c9a12ba53419d34563a5ec57c90e3d6798f4;p=ctsim.git

diff --git a/include/projections.h b/include/projections.h
index 787f325..39cb09a 100644
--- a/include/projections.h
+++ b/include/projections.h
@@ -9,7 +9,7 @@
 **  This is part of the CTSim program
 **  Copyright (c) 1983-2001 Kevin Rosenberg
 **
-**  $Id: projections.h,v 1.25 2001/02/22 18:22:40 kevin Exp $
+**  $Id: projections.h,v 1.28 2001/03/10 23:14:15 kevin Exp $
 **
 **
 **  This program is free software; you can redistribute it and/or modify
@@ -38,6 +38,36 @@ class fnetorderstream;
 #include "imagefile.h"
 #include <complex>
 
+//used for rebinning divergent beam projections to parallel
+class ParallelRaysumCoordinate {  
+public:
+  double m_dT;      // Distance from center of origin
+  double m_dTheta;  // perpendicular angle to origin
+  int m_iViewNum;   // View number for this raysum
+  int m_iDetNum;    // Detector number for this raysum
+
+  bool lessThanT (ParallelRaysumCoordinate& rCompare)
+  {return m_dT < rCompare.m_dT; }
+  bool lessThanTheta (ParallelRaysumCoordinate& rCompare)
+  {return m_dTheta < rCompare.m_dTheta; }
+};
+
+class ParallelRaysums {
+private:
+  ParallelRaysumCoordinate** m_ppCoordinates;
+  int m_iNumCoordinates;
+
+public:
+  ParallelRaysums (Projections* pProjections);
+  ~ParallelRaysums ();
+
+  ParallelRaysumCoordinate** getCoordinates() {return m_ppCoordinates;}
+  int getNumCoordinates() const {return m_iNumCoordinates;}
+  void getLimits (double* dMinT, double* dMaxT, double* dMinTheta, double* dMaxTheta) const;
+};
+
+
+
 // Projections
 class Projections
 {
@@ -61,6 +91,7 @@ class Projections
   static const char* convertInterpIDToTitle (const int interpID);
 
   void initFromScanner (const Scanner& scanner);
+  bool initFromSomatomAR_STAR (int iNViews, int iNDets, unsigned char* pData, unsigned long lDataLength);
 
   void printProjectionData (int startView, int endView);
   void printProjectionData ();
@@ -73,6 +104,8 @@ class Projections
   bool detarrayRead (fnetorderstream& fs, DetectorArray& darray, const int view_num);
   bool detarrayWrite (fnetorderstream& fs, const DetectorArray& darray, const int view_num);
 
+  bool interpolateToParallel();
+
   bool convertPolar (ImageFile& rIF, int iInterpolation);
   bool convertFFTPolar (ImageFile& rIF, int iInterpolation, int iZeropad);
   bool calcArrayPolarCoordinates (unsigned int nx, unsigned int ny, double** ppdView, double** ppdDet);
@@ -99,6 +132,8 @@ class Projections
   int nView() const {return m_nView;}
   int geometry() const {return m_geometry;}
   double focalLength() const {return m_dFocalLength;}
+  double sourceDetectorLength() const { return m_dSourceDetectorLength;}
+
   double phmLen() const { return m_dViewDiameter / SQRT2; }
   void setPhmLen(double phmLen) { m_dViewDiameter = phmLen * SQRT2; }
 
@@ -131,6 +166,7 @@ class Projections
   double m_detStart;		// distance of beginning detector to center phantom
   double m_detInc;		// increment between detectors 
   double m_dFocalLength;
+  double m_dSourceDetectorLength;
   double m_dViewDiameter;
   double m_dFanBeamAngle;
   kuint32 m_year;                   // Creation date & time