-// Represents reconstructed TRD track
- friend class AliTRDtracker;
-public:
-
- AliTRDtrack():AliKalmanTrack(){fBackupTrack=0;}
- AliTRDtrack(const AliTRDcluster *c, UInt_t index, const Double_t xx[5],
- const Double_t cc[15], Double_t xr, Double_t alpha);
- AliTRDtrack(const AliTRDtrack& t);
- AliTRDtrack(const AliKalmanTrack& t, Double_t alpha);
- AliTRDtrack(const AliESDtrack& t);
- static AliTRDtrack * MakeTrack(const AliTrackReference *ref, Double_t mass);
- ~AliTRDtrack();
- Int_t Compare(const TObject *o) const;
- void CookdEdx(Double_t low=0.05, Double_t up=0.55);
- Float_t StatusForTOF();
- Double_t GetAlpha() const {return fAlpha;}
- Int_t GetSector() const {
- //if (fabs(fAlpha) < AliTRDgeometry::GetAlpha()/2) return 0;
- return Int_t(TVector2::Phi_0_2pi(fAlpha)/AliTRDgeometry::GetAlpha())%AliTRDgeometry::kNsect;}
-
- Double_t GetC() const {return fC;}
- Int_t GetClusterIndex(Int_t i) const {return fIndex[i];}
- Float_t GetClusterdQdl(Int_t i) const {return fdQdl[i];}
-
- void GetCovariance(Double_t cov[15]) const;
- Double_t GetdEdx() const {return fdEdx;}
- Double_t GetPIDsignal() const {return GetdEdx();}
- Float_t GetPIDsignals(Int_t i) const {return fdEdxPlane[i];}
- Int_t GetPIDTimBin(Int_t i) const {return fTimBinPlane[i];}
- Double_t GetEta() const {return fE;}
-
- void GetExternalCovariance(Double_t cov[15]) const ;
- void GetExternalParameters(Double_t& xr, Double_t x[5]) const ;
-
- Double_t GetLikelihoodElectron() const { return fLhElectron; };
-
- Double_t Get1Pt() const {
- return (TMath::Sign(1e-9,fC) + fC)*GetLocalConvConst();
- }
- Double_t GetP() const {
- return TMath::Abs(GetPt())*sqrt(1.+GetTgl()*GetTgl());
- }
- Double_t GetPredictedChi2(const AliTRDcluster*, Double_t h01) const ;
- Double_t GetPt() const {return 1./Get1Pt();}
- void GetPxPyPz(Double_t &px, Double_t &py, Double_t &pz) const ;
- void GetGlobalXYZ(Double_t &x, Double_t &y, Double_t &z) const ;
- Int_t GetSeedLabel() const { return fSeedLab; }
- Double_t GetSigmaC2() const {return fCcc;}
- Double_t GetSigmaTgl2() const {return fCtt;}
- Double_t GetSigmaY2() const {return TMath::Abs(fCyy);}
- Double_t GetSigmaZ2() const {return TMath::Abs(fCzz);}
- Double_t GetSnp() const {return fX*fC - fE;}
- Double_t GetTgl() const {return fT;}
- Double_t GetX() const {return fX;}
- Double_t GetY() const {return fY;}
- Double_t GetZ() const {return fZ;}
- UInt_t * GetBackupIndexes() {return fIndexBackup;}
- UInt_t * GetIndexes() {return fIndex;}
- Double_t GetYat(Double_t xk) const {
-//-----------------------------------------------------------------
-// This function calculates the Y-coordinate of a track at the plane x=xk.
-// Needed for matching with the TOF (I.Belikov)
-//-----------------------------------------------------------------
- Double_t c1=fC*fX - fE, r1=TMath::Sqrt(1.- c1*c1);
- Double_t c2=fC*xk - fE, r2=TMath::Sqrt(1.- c2*c2);
- return fY + (xk-fX)*(c1+c2)/(r1+r2);
- }
- Int_t GetProlongation(Double_t xk, Double_t &y, Double_t &z);
-
- void SetStop(Bool_t stop) {fStopped=stop;}
- Bool_t GetStop() const {return fStopped;}
-
- Int_t PropagateTo(Double_t xr, Double_t x0=8.72, Double_t rho=5.86e-3);
- Int_t PropagateToX(Double_t xr, Double_t step);
- Int_t PropagateToR(Double_t xr, Double_t step);
- void ResetCovariance();
- void ResetCovariance(Float_t mult);
- void ResetClusters() { SetChi2(0.); SetNumberOfClusters(0); }
- Int_t Rotate(Double_t angle, Bool_t absolute=kFALSE);
-
- void SetdEdx(Float_t dedx) {fdEdx=dedx;}
- void SetPIDsignals(Float_t dedx, Int_t i) {fdEdxPlane[i]=dedx;}
- void SetPIDTimBin(Int_t timbin, Int_t i) {fTimBinPlane[i]=timbin;}
- void SetLikelihoodElectron(Float_t l) { fLhElectron = l; };
-
- void SetSampledEdx(Float_t q, Int_t i) {
- Double_t s=GetSnp(), t=GetTgl();
- q*= TMath::Sqrt((1-s*s)/(1+t*t));
- fdQdl[i]=q;
- }
- void SetSampledEdx(Float_t q) {
- Double_t s=GetSnp(), t=GetTgl();
- q*= TMath::Sqrt((1-s*s)/(1+t*t));
- fdQdl[fNdedx]=q;
- fNdedx++;
- }
-
- void SetSeedLabel(Int_t lab) { fSeedLab=lab; }
-
- Int_t Update(const AliTRDcluster* c, Double_t chi2, UInt_t i,
- Double_t h01);
- Int_t UpdateMI(const AliTRDcluster* c, Double_t chi2, UInt_t i,
- Double_t h01, Int_t plane);
- Int_t UpdateMI(const AliTRDtracklet & tracklet);
-
- //
- void AddNWrong() {fNWrong++;}
-
- Int_t GetNWrong() const {return fNWrong;}
- Int_t GetNRotate() const {return fNRotate;}
- Int_t GetNCross() const {return fNCross;}
- void IncCross() {fNCross++; if (fBackupTrack) fBackupTrack->IncCross();}
- AliTRDtrack * GetBackupTrack(){return fBackupTrack;}
- void MakeBackupTrack();
- //
-
-
-protected:
- void GetXYZ(Float_t r[3]) const;
-
- Double_t GetPredictedChi2(const AliCluster*/*c*/) const {return 0.;}
- Int_t Update(const AliCluster*/*c*/, Double_t /*chi2*/, UInt_t /*i*/) {
- return 0;
- }
-
- Int_t fSeedLab; // track label taken from seeding
- Float_t fdEdx; // dE/dx
- Float_t fdEdxT; // dE/dx - truncated mean
- Float_t fDE; // integrated delta energy
- Float_t fdEdxPlane[kNPlane]; // dE/dx from all 6 planes
- Int_t fTimBinPlane[kNPlane]; // time bin of Max cluster from all 6 planes
-
- Double_t fAlpha; // rotation angle
- Double_t fX; // running local X-coordinate of the track (time bin)
- Bool_t fStopped; // track stop indication
-
- Double_t fY; // Y-coordinate of the track
- Double_t fZ; // Z-coordinate of the track
- Double_t fE; // C*x0
- Double_t fT; // tangent of the track momentum dip angle
- Double_t fC; // track curvature
-
- Double_t fCyy; // covariance
- Double_t fCzy, fCzz; // matrix
- Double_t fCey, fCez, fCee; // of the
- Double_t fCty, fCtz, fCte, fCtt; // track
- Double_t fCcy, fCcz, fCce, fCct, fCcc; // parameters
-
- UInt_t fIndex[kMAX_CLUSTERS_PER_TRACK]; // global indexes of clusters
- UInt_t fIndexBackup[kMAX_CLUSTERS_PER_TRACK]; //backup indexes of clusters - used in iterations
- Float_t fdQdl[kMAX_CLUSTERS_PER_TRACK]; // cluster amplitudes corrected
- // for track angles