#ifndef ALITRDTRACK_H
-#define ALITRDTRACK_H
+#define ALITRDTRACK_H
/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
- * See cxx source for full Copyright notice */
+ * See cxx source for full Copyright notice */
#include <AliKalmanTrack.h>
-#include <TMath.h>
+#include <AliTRDtracklet.h>
class AliTRDcluster;
-class AliTPCtrack;
+class AliTPCtrack;
+class AliESDtrack;
+class AliTrackReference;
-const unsigned kMAX_CLUSTERS_PER_TRACK=210;
+const unsigned kMAXCLUSTERSPERTRACK = 210;
+
+///////////////////////////////////////////////////////////////////////////////
+// //
+// Represents a reconstructed TRD track //
+// //
+///////////////////////////////////////////////////////////////////////////////
class AliTRDtrack : public AliKalmanTrack {
+
+ enum { kNdet = 540
+ , kNstacks = 90
+ , kNplane = 6
+ , kNcham = 5
+ , kNsect = 18
+ , kNslice = 3
+ , kNtimeBins = 22 };
-// Represents reconstructed TRD track
+ friend class AliTRDtracker;
-public:
+ public:
- AliTRDtrack():AliKalmanTrack(){}
+ AliTRDtrack();
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);
-
- Int_t Compare(const TObject *o) const;
- void CookdEdx(Double_t low=0.05, Double_t up=0.70);
-
- Double_t GetAlpha() const {return fAlpha;}
- 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;
- Float_t GetdEdx() const {return fdEdx;}
- 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::Abs(fC*GetConvConst());}
- Double_t GetP() const {
- return TMath::Abs(GetPt())*sqrt(1.+GetTgl()*GetTgl());
- }
- Double_t GetPredictedChi2(const AliTRDcluster*) 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 fCyy;}
- Double_t GetSigmaZ2() const {return 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;}
-
- Int_t PropagateTo(Double_t xr,
- Double_t x0=8.72,Double_t rho=5.86e-3,Double_t pm=0.139);
- void ResetCovariance();
- Int_t Rotate(Double_t angle);
-
- void SetdEdx(Float_t dedx) {fdEdx=dedx;}
- 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 SetSeedLabel(Int_t lab) { fSeedLab=lab; }
-
- Int_t Update(const AliTRDcluster* c, Double_t chi2, UInt_t i);
-
-protected:
-
- Int_t fSeedLab; // track label taken from seeding
- Float_t fdEdx; // dE/dx
-
- Double_t fAlpha; // rotation angle
- Double_t fX; // running local X-coordinate of the track (time bin)
-
- Double_t fY; // Y-coordinate of the track
- Double_t fZ; // Z-coordinate of the track
- Double_t fC; // track curvature
- Double_t fE; // C*x0
- Double_t fT; // tangent of the track dip angle
-
- Double_t fCyy; // covariance
- Double_t fCzy, fCzz; // matrix
- Double_t fCcy, fCcz, fCcc; // of the
- Double_t fCey, fCez, fCec, fCee; // track
- Double_t fCty, fCtz, fCtc, fCte, fCtt; // parameters
-
- UInt_t fIndex[kMAX_CLUSTERS_PER_TRACK]; // global indexes of clusters
- Float_t fdQdl[kMAX_CLUSTERS_PER_TRACK]; // cluster amplitudes corrected
- // for track angles
-
- Float_t fLhElectron; // Likelihood to be an electron
-
- ClassDef(AliTRDtrack,2) // TRD reconstructed tracks
+ AliTRDtrack(const AliESDtrack& t);
+ ~AliTRDtrack();
+
+ AliTRDtrack &operator=(const AliTRDtrack &t);
+
+ //static AliTRDtrack* MakeTrack(const AliTrackReference *ref, Double_t mass);
+ Int_t Compare(const TObject *o) const;
+ void CookdEdx(Double_t low=0.05, Double_t up=0.7);
+ Float_t StatusForTOF();
+ Double_t GetAlpha() const { return fAlpha; }
+ Int_t GetSector() const;
+ 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 iPlane, Int_t iSlice) const
+ { return fdEdxPlane[iPlane][iSlice]; }
+ 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;
+ Double_t GetP() const;
+ Double_t GetPredictedChi2(const AliTRDcluster* c, Double_t h01) const;
+ Double_t GetPt() const { return 1.0 / 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 fCyy; }
+ Double_t GetSigmaZ2() const { return 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; }
+ Int_t* GetBackupIndexes() { return fIndexBackup; }
+ Int_t* GetIndexes() { return fIndex; }
+
+ Double_t GetYat(Double_t xk) const;
+ 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 iPlane, Int_t iSlice)
+ { fdEdxPlane[iPlane][iSlice] = 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);
+ void SetSampledEdx(Float_t q);
+ 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:
+
+ inline void GetXYZ(Float_t r[3]) const;
+
+ Double_t GetPredictedChi2(const AliCluster*/*c*/) const { return 0.0; }
+ 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][kNslice]; // dE/dx from all 6 planes in 3 slices each
+ 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
+
+ Int_t fIndex[kMAXCLUSTERSPERTRACK]; // global indexes of clusters
+ Int_t fIndexBackup[kMAXCLUSTERSPERTRACK]; // backup indexes of clusters - used in iterations
+ Float_t fdQdl[kMAXCLUSTERSPERTRACK]; // cluster amplitudes corrected for track angles
+
+ Float_t fLhElectron; // Likelihood to be an electron
+ Int_t fNWrong; // number of wrong clusters
+ Int_t fNRotate; // number of rotation
+ Int_t fNCross; // number of the cross materials
+ Int_t fNExpected; // expected number of cluster
+ Int_t fNLast; // number of clusters in last 2 layers
+ Int_t fNExpectedLast; // number of expected clusters on last 2 layers
+ Int_t fNdedx; // number of clusters for dEdx measurment
+ Float_t fChi2Last; // chi2 in the last 2 layers
+ AliTRDtracklet fTracklets[6]; // tracklets
+ Float_t fBudget[3]; // integrated material budget
+ AliTRDtrack *fBackupTrack; //! backup track
+
+ ClassDef(AliTRDtrack,5) // TRD reconstructed tracks
};
+inline
+void AliTRDtrack::GetExternalParameters(Double_t& xr, Double_t x[5]) const
+{
+ //
+ // This function returns external TRD track representation
+ //
+ xr = fX;
+ x[0] = GetY(); x[1] = GetZ(); x[2] = GetSnp(); x[3] = GetTgl();
+ x[4] = (TMath::Sign(1e-9,fC) + fC)*GetLocalConvConst();
+}
#endif
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff