StRoot: Sti/StiTrack.h Source File

00001 
00020 #ifndef StiTrack_H
00021 #define StiTrack_H 1
00022 
00023 //std
00024 #include <math.h>
00025 #include <vector>
00026 using namespace std;
00027 
00028 //SCL
00029 #include "StThreeVector.hh"
00030 #include "StThreeVectorF.hh"
00031 
00032 //Sti
00033 class StiHit;
00034 class StHit;
00035 class StMeasuredPoint;
00036 class StiTrackFinder;
00037 class StiTrackFitter;
00038 class StiTrack;
00039 class StiTrackNode;
00040 
00047 enum StiDirection {kOutsideIn=0, kInsideOut};
00048 
00057 class StiTrack 
00058 {
00059 public:
00060 
00061   enum StiTrackProperty {kCharge=0,
00062                          kMass,
00063                          kChi2,
00064                          kDca2,
00065                          kDca3,
00066                          kFlag,
00067                          kPrimaryDca,
00068                          kPointCount,
00069                          kFitPointCount,
00070                          kGapCount,
00071                          kTrackLength,
00072                          kMaxPointCount,
00073                          kisPrimary,
00074                          kTpcDedx,
00075                          kSvtDedx,
00076                          kCurvature,
00077                          kP,
00078                          kPt,
00079                          kRapidity,
00080                          kPseudoRapidity,
00081                          kPhi,
00082                          kTanL  };
00083   static void setTrackFinder(StiTrackFinder * finder);
00084   static void setTrackFitter(StiTrackFitter * fitter);
00085   static StiTrackFinder * getTrackFinder();
00086   static StiTrackFitter * getTrackFitter();
00087 
00088   StiTrack();
00089   virtual ~StiTrack()  { /* nops */  }
00090   virtual int  fit (int direction=kOutsideIn); 
00091   virtual bool find(int direction=kOutsideIn);
00092   virtual void reset()=0;
00093   virtual void unset(){;}
00094   virtual void reduce(){;}
00095   virtual void getMomentum(double p[3], double e[6]) const =0;
00096   virtual StThreeVector<double> getMomentumAtOrigin() const =0; //3-momentum at first point
00097   virtual double  getCurvature()      const=0;   // transverse curvature
00098   virtual double  getP()              const=0;   // transverse momentum
00099   virtual double  getPt()             const=0;   // transverse momentum
00100   virtual double  getRapidity()       const=0;   // rapidity
00101   virtual double  getPseudoRapidity() const=0;   // pseudo rapidity
00102   virtual double  getPhi()            const=0;   // azimuthal angle
00103   virtual double  getTanL()           const=0;   // tan(lambda)
00104   virtual double  getDca(const StiHit*)const;    // distance of closest approach to main vertex
00105   virtual double  getDca()            const=0;   // distance of closest approach to main vertex
00106   virtual double  getDca2(StiTrack *t) const=0;  // distance of closest approach to given track - 2D calc
00107   virtual double  getDca3(StiTrack *t) const=0;  // distance of closest approach to given track - 3D calc
00108   virtual int     getPointCount   (int detectorId=0) const=0;
00109   virtual int     getFitPointCount(int detectorId=0) const=0; 
00110   virtual int     getGapCount() const=0;
00111   virtual int     getMaxPointCount(int detectorId=0) const=0;
00113   virtual UShort_t     getSeedHitCount() const =0;
00114   virtual void    setSeedHitCount(UShort_t c)=0;
00115   virtual double  getTrackLength() const=0;
00116   virtual vector<const StMeasuredPoint*> stHits() const=0;
00118   virtual double  getMass() const=0;
00120   virtual int     getCharge() const=0;
00122   virtual double  getChi2() const=0;
00123   virtual void    setFlag(long v)=0;
00124   virtual long    getFlag() const=0;
00125   virtual vector<StiHit*> getHits()=0;
00126   // Convenience Accessor using a switch
00127   virtual double  getValue(int key) const;
00128           int    getId() const {return mId;}
00129           void   setId(int id)  {mId=id;}
00130   virtual StiTrackNode *extendToVertex(StiHit* vertex)=0;
00131   //    virtual bool extendToVertex(StiHit* vertex, const StiDetector * alternate)=0;
00132   virtual int  refit()=0;
00133   virtual int  refitL()=0;
00134   StiTrack &operator=(const StiTrack &tk);
00135  protected:
00136   static StiTrackFinder * trackFinder;
00137   static StiTrackFitter * trackFitter;
00138 
00139   friend ostream& operator<<(ostream& os, const StiTrack& track);
00140 protected:
00141   int             mId;
00142   int             mIdDb;
00143 };
00144 
00145 //Dummy get global dca method always returns zero
00146 inline double  StiTrack::getDca(const StiHit*)const
00147 {
00148   return 0;
00149 }
00150 #endif