+class fnetorderstream;
+
+#include "array2dfile.h"
+#include "imagefile.h"
+#include <complex>
+#include <vector>
+
+
+//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
+ double m_dRaysum;
+
+ bool lessThanT (ParallelRaysumCoordinate& rCompare)
+ {return m_dT < rCompare.m_dT; }
+ bool lessThanTheta (ParallelRaysumCoordinate& rCompare)
+ {return m_dTheta < rCompare.m_dTheta; }
+
+ static bool compareByTheta (ParallelRaysumCoordinate* a, ParallelRaysumCoordinate* b)
+ { return a->m_dTheta == b->m_dTheta ? b->m_dT > a->m_dT : b->m_dTheta > a->m_dTheta; }
+
+ // sort first by T, then Theta
+ static bool compareByT (ParallelRaysumCoordinate* a, ParallelRaysumCoordinate* b)
+ { return a->m_dT == b->m_dT ? b->m_dTheta > a->m_dTheta : b->m_dT > a->m_dT; }
+
+};
+
+class ParallelRaysums {
+public:
+ ParallelRaysums (Projections* pProjections);
+ ~ParallelRaysums ();
+
+ typedef std::vector<ParallelRaysumCoordinate*> CoordinateContainer;
+ typedef CoordinateContainer::iterator CoordinateIterator;
+
+ CoordinateContainer& getCoordinates() {return m_vecpCoordinates;}
+ int getNumCoordinates() const {return m_iNumCoordinates;}
+ void getLimits (double* dMinT, double* dMaxT, double* dMinTheta, double* dMaxTheta) const;
+ CoordinateContainer& getSortedByT();
+ CoordinateContainer& getSortedByTheta();
+ double interpolate (double* pdX, double* pdY, int n, double dXValue);
+ void getThetaAndRaysumsForT (int iT, double* pdTheta, double* pdRaysum);
+ void getDetPositions (double* pdDetPos);
+
+private:
+ CoordinateContainer m_vecpCoordinates;
+ CoordinateContainer m_vecpSortedByT;
+ CoordinateContainer m_vecpSortedByTheta;
+ int m_iNumCoordinates;
+ int m_iNumView;
+ int m_iNumDet;
+};
+