1 #ifndef ALIKALMANTRACK_H
2 #define ALIKALMANTRACK_H
4 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
5 * See cxx source for full Copyright notice */
7 //-------------------------------------------------------------------------
8 // Class AliKalmanTrack
10 // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch
11 //-------------------------------------------------------------------------
17 class AliKalmanTrack : public TObject {
20 AliKalmanTrack(const AliKalmanTrack &t);
22 virtual ~AliKalmanTrack(){};
23 void SetLabel(Int_t lab) {fLab=lab;}
25 Bool_t IsSortable() const {return kTRUE;}
26 Int_t GetLabel() const {return fLab;}
27 Double_t GetChi2() const {return fChi2;}
28 Double_t GetMass() const {return fMass;}
29 Int_t GetNumberOfClusters() const {return fN;}
30 virtual Int_t GetClusterIndex(Int_t) const { //reserved for AliTracker
31 Warning("GetClusterIndex(Int_t)","Method must be overloaded !\n");
35 virtual Int_t Compare(const TObject *) const {return 0;}
37 virtual void GetExternalParameters(Double_t &/*xr*/, Double_t /*x*/[5]) const {}
38 virtual void GetExternalCovariance(Double_t /*cov*/[15]) const {}
40 virtual Double_t GetPredictedChi2(const AliCluster *) const {return 0.;}
42 Int_t PropagateTo(Double_t /*xr*/, Double_t /*x0*/, Double_t /*rho*/) {return 0;}
43 virtual Int_t Update(const AliCluster*, Double_t /*chi2*/, UInt_t) {return 0;}
45 static void SetConvConst(Double_t cc) {fConvConst=cc;}
46 Double_t GetConvConst() const {return fConvConst;}
48 static void SetMagneticField(Double_t f) {// f - Magnetic field in T
49 fConvConst=100/0.299792458/f;
51 Double_t GetMagneticField() const {return 100/0.299792458/fConvConst;}
54 void SetChi2(Double_t chi2) {fChi2=chi2;}
55 void SetMass(Double_t mass) {fMass=mass;}
56 void SetNumberOfClusters(Int_t n) {fN=n;}
59 Int_t fLab; // track label
60 Double_t fChi2; // total chi2 value for this track
61 Double_t fMass; // mass hypothesis
62 Int_t fN; // number of associated clusters
64 static Double_t fConvConst; //conversion constant cm -> GeV/c
66 ClassDef(AliKalmanTrack,1) // Reconstructed track