LCDVToplVRT

class LCDVToplVRT : public TObject

    private:

      Int_t Filtering(LCDVToplTRK* trk)
       void Init(TVector3 xinit)
       void Init(TObjArray* tracks, TVector3 xinit)

    public:

          LCDVToplVRT LCDVToplVRT()
          LCDVToplVRT LCDVToplVRT(TVector3 xinit)
          LCDVToplVRT LCDVToplVRT(TObjArray*)
          LCDVToplVRT LCDVToplVRT(TObjArray*, TVector3)
          LCDVToplVRT LCDVToplVRT(const LCDVToplVRT& vrt)
         virtual void ~LCDVToplVRT()
                Int_t AddTrack(LCDVToplTRK*)
                Int_t AddTrack(LCDVToplTRK*, Int_t f_fit)
                 void AddTracks(TObjArray*)
                 void AddTracks(TObjArray*, Int_t f_fit)
                 void CalcFourVector()
       static TClass* Class()
                 void Clean()
        virtual Int_t Compare(const TObject* obj) const
                 void CompressTracksList()
                 void DeleteTracks()
                Int_t FilteringToAddTrack(LCDVToplTRK* trk)
                Int_t FilteringToRemoveTrack(LCDVToplTRK* trk)
             Double_t GetChi2()
             Double_t GetDecayLength(TVector3 x_from)
             Double_t GetEpscut()
            TMatrixD* GetError()
             Double_t GetErrorDecayLength(TVector3 x_from, TMatrixD& err_from)
                 void GetErrorMatrixVertex(TMatrixD& em)
            TMatrixD* GetFitParm()
       TLorentzVector GetFourVector()
             Double_t GetFourVectorE()
             Double_t GetFourVectorPx()
             Double_t GetFourVectorPy()
             Double_t GetFourVectorPz()
             Double_t GetMass()
                Int_t GetMaxtry()
             Double_t GetPchi2(Int_t itrk)
       TLorentzVector GetTrack4MomentumVector(Int_t itrk)
         LCDVToplTRK* GetTrackAt(Int_t itrk)
                Int_t GetTrackEntries()
             TVector3 GetTrackMomentumVector(Int_t itrk)
             Double_t GetVertexCharge()
             TVector3 GetVertexVector()
             Double_t GetVertexX()
             Double_t GetVertexY()
             Double_t GetVertexZ()
             Double_t GetVsig()
                Int_t IndexOfTrack(LCDVToplTRK* trk)
      virtual TClass* IsA() const
       virtual Bool_t IsSortable() const
                 void linearizeChargedTrack(TMatrixD& a, TMatrixD& b, TMatrixD& h0, TMatrixD& x, TMatrixD& q)
         LCDVToplVRT& operator=(const LCDVToplVRT&)
                Int_t RemoveTrack(LCDVToplTRK* trk)
                Int_t RemoveTrack(LCDVToplTRK* trk, Int_t f_fit)
                Int_t RemoveTrackAt(Int_t itrk)
                Int_t RemoveTrackAt(Int_t itrk, Int_t f_fit)
                 void SetEpsCut(Double_t a)
                 void SetMaxtry(Int_t a)
                 void SetVertex(Double_t*)
                 void SetVertex(TVector3)
                 void SetVsig(Double_t v)
         virtual void ShowMembers(TMemberInspector& insp, char* parent)
                 void SmoothingParameters(LCDVToplTRK* trk, TMatrixD& q)
         virtual void Streamer(TBuffer& b)
                 void StreamerNVirtual(TBuffer& b)
            TObject** Tracks()
                Int_t VertexFit()
                Int_t VertexFit(TVector3 xvinit)

  Data Members
    private:

               Int_t maxtry           maximum iteration number
            Double_t epscut           control convergence of fitting
               Int_t m_ntrk           
            TObject* track_list[100]  pointer array of tracks
            TMatrixD m_fitparm        vertex position
            TMatrixD m_error          error matrix of vertex position
      TLorentzVector a4vec            vertex momentum vector
            Double_t qvtx             
            Double_t chisquared       chisquare of vertex fitting
            Double_t vsig             Vertex SIGnificance func. value

Class Description

 $Log: LCDVToplVRT.cxx,v $
 Revision 1.3  2001/06/19 03:49:12  toshi
 Changes accoring to the changes of LCDVToplTRK.

 Revision 1.2  2001/05/14 17:27:15  toshi
 Vertex fitting sometimes diverges and it may kill a running program.
 If vertex fitting goes divergence, use previous fitting parameter values
 in the iteration.

 Revision 1.1  2001/05/10 19:32:11  toshi
 C++ file name convention has been changed from .C to .cxx .

Kalman Filter -- add track to vertex

Kalman Filter -- remove track from vertex

Inline Functions

                  void DeleteTracks()
              Double_t GetChi2()
              Double_t GetEpscut()
             TMatrixD* GetError()
             TMatrixD* GetFitParm()
        TLorentzVector GetFourVector()
              Double_t GetFourVectorPx()
              Double_t GetFourVectorPy()
              Double_t GetFourVectorPz()
              Double_t GetFourVectorE()
              Double_t GetMass()
                 Int_t GetMaxtry()
                 Int_t GetTrackEntries()
          LCDVToplTRK* GetTrackAt(Int_t itrk)
              Double_t GetVertexCharge()
              Double_t GetVertexX()
              Double_t GetVertexY()
              Double_t GetVertexZ()
              Double_t GetVsig()
                  void SetEpsCut(Double_t a)
                  void SetMaxtry(Int_t a)
                  void SetVsig(Double_t v)
             TObject** Tracks()
          LCDVToplVRT& operator=(const LCDVToplVRT&)
                Bool_t IsSortable() const
                 Int_t Compare(const TObject* obj) const
                 Int_t Filtering(LCDVToplTRK* trk)
               TClass* Class()
               TClass* IsA() const
                  void ShowMembers(TMemberInspector& insp, char* parent)
                  void Streamer(TBuffer& b)
                  void StreamerNVirtual(TBuffer& b)
                  void ~LCDVToplVRT()