X-Git-Url: http://git.kpe.io/?p=ctsim.git;a=blobdiff_plain;f=include%2Fprojections.h;h=3efbde920f64aab989976457266eafedfd082ac1;hp=d2fe89c0e6a286f58c7ae9f5c98fa76cd9c2780b;hb=f13a8c004b8f182b42d9e4df2bcd7c7f030bf1ad;hpb=3ea498d51ce4597e9649cd21f155b51175ea0bea

diff --git a/include/projections.h b/include/projections.h
index d2fe89c..3efbde9 100644
--- a/include/projections.h
+++ b/include/projections.h
@@ -7,10 +7,7 @@
 **   Date Started:  July 1, 1984
 **
 **  This is part of the CTSim program
-**  Copyright (c) 1983-2001 Kevin Rosenberg
-**
-**  $Id: projections.h,v 1.35 2001/03/21 21:45:31 kevin Exp $
-**
+**  Copyright (c) 1983-2009 Kevin Rosenberg
 **
 **  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
@@ -41,7 +38,7 @@ class fnetorderstream;
 
 
 //used for rebinning divergent beam projections to parallel
-class ParallelRaysumCoordinate {  
+class ParallelRaysumCoordinate {
 public:
   double m_dT;      // Distance from center of origin
   double m_dTheta;  // perpendicular angle to origin
@@ -122,6 +119,10 @@ class Projections
   void printProjectionData ();
   void printScanInfo (std::ostringstream& os) const;
 
+  int Helical180LI(int interpView);
+  int Helical180LI_Equiangular(int interpView);
+  int HalfScanFeather(void);
+
   bool read (const std::string& fname);
   bool read (const char* fname);
   bool write (const char* fname);
@@ -133,10 +134,10 @@ class Projections
 
   bool convertPolar (ImageFile& rIF, int iInterpolation);
   bool convertFFTPolar (ImageFile& rIF, int iInterpolation, int iZeropad);
-  void calcArrayPolarCoordinates (unsigned int nx, unsigned int ny, double** ppdView, double** ppdDet, 
+  void calcArrayPolarCoordinates (unsigned int nx, unsigned int ny, double** ppdView, double** ppdDet,
     int iNumDetWithZeros, double dZeropadRatio, double dDetInc);
   void interpolatePolar (ImageFileArray& v, ImageFileArray& vImag, unsigned int nx, unsigned int ny, std::complex<double>** ppcDetValue,
-    double** ppdDet, double** ppdView, unsigned int nView, unsigned int nDet, unsigned int nDetWithZeros, 
+    double** ppdDet, double** ppdView, unsigned int nView, unsigned int nDet, unsigned int nDetWithZeros,
     int iInterpolate);
 
   bool reconstruct (ImageFile& im, const char* const filterName, double filt_param, const char* const filterMethodName, const int zeropad, const char* frequencyFilterName, const char* const interpName, int interp_param, const char* const backprojName, const int trace) const;
@@ -170,7 +171,7 @@ class Projections
 
   DetectorArray& getDetectorArray (const int iview)
       { return (*m_projData[iview]); }
-  
+
   const DetectorArray& getDetectorArray (const int iview) const
       { return (*m_projData[iview]); }
 
@@ -179,19 +180,19 @@ class Projections
 
   static bool copyViewData (const char* const filename, std::ostream& os, int startView, int endView);
   static bool copyViewData (const std::string& filename, std::ostream& os, int startView, int endView);
-  
+
  private:
-  int m_headerSize;		// Size of disk file header 
-  int m_geometry;		// Geometry of scanner 
-  class DetectorArray **m_projData;	// Pointer to array of detarray_st pointers 
-  std::string m_remark;	        // description of raysum data 
-  int m_nDet;			// number of detectors in array 
-  int m_nView;			// number of rotated views 
-  double m_calcTime;		// time required to calculate raysums 
-  double m_rotStart;		// starting view rotation
-  double m_rotInc;		// angle between rotations 
-  double m_detStart;		// distance of beginning detector to center phantom
-  double m_detInc;		// increment between detectors 
+  int m_headerSize;             // Size of disk file header
+  int m_geometry;               // Geometry of scanner
+  class DetectorArray **m_projData;     // Pointer to array of detarray_st pointers
+  std::string m_remark;         // description of raysum data
+  int m_nDet;                   // number of detectors in array
+  int m_nView;                  // number of rotated views
+  double m_calcTime;            // time required to calculate raysums
+  double m_rotStart;            // starting view rotation
+  double m_rotInc;              // angle between rotations
+  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;