StGammaTrack.h

//                                                        //
//    StGammaTrack                                        //
//                                                        //
//    Lightweight class to hold TPC track information     //
//                                                        //
//    Original concept and implementation by              //
//    Jason Webb (Valpo)                                  //
//                                                        //

#ifndef STAR_StGammaTrack
#define STAR_StGammaTrack

class StMuTrack;
class StGammaCandidate;

#include "TObject.h"
#include "TVector3.h"
#include "TRefArray.h"
#include "StPhysicalHelix.hh"

class StGammaTrack: public TObject 
{

    public:
        
        class Exception {};
        
        StGammaTrack();
        StGammaTrack(StMuTrack* track);
        ~StGammaTrack();
        
        virtual const char* GetCVS() const
        {static const char cvs[] = "Tag $Name:  $ $Id: StGammaTrack.h,v 1.9 2014/08/06 11:43:18 jeromel Exp $ built " __DATE__ " " __TIME__; return cvs; }
        
        Int_t    id;     
        Int_t    flag;   
        Int_t    type;   
        Int_t    charge; 
        Int_t    nhits;  
        Float_t  dEdx;   
        TVector3 momentum;
        TVector3 dca;   
        StPhysicalHelix helix; 
        StPhysicalHelix outerHelix; 
        TVector3 positionAtRadius(Double_t radius) const; 
        TVector3 positionAtZ(Double_t z) const; 
        TRefArray candidates; 
        
        Float_t pt() const;   
        Float_t pz() const;   
        Float_t eta() const;  
        Float_t phi() const;  

    private:
        
        ClassDef(StGammaTrack, 2);
        
};

inline Float_t StGammaTrack::pt() const { return momentum.Pt(); }
inline Float_t StGammaTrack::pz() const { return momentum.Pz(); }
inline Float_t StGammaTrack::eta() const { return momentum.Eta(); }
inline Float_t StGammaTrack::phi() const { return momentum.Phi(); }

typedef std::vector<StGammaTrack> StGammaTrackVec_t;
typedef std::vector<StGammaTrack*> StGammaTrackPtrVec_t;

#endif