X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;f=TRD%2FAliTRDtrack.h;h=a14f0793a20ee074c9703d7dde6095af0b56ab93;hb=894840ad647b8b97bb9cd30fbf2c83590bc56f46;hp=2dea83a97542d80661eae0d123709aacbd81c004;hpb=a819a5f7bddaac1e6625eb9531e9e0734bba8c83;p=u%2Fmrichter%2FAliRoot.git diff --git a/TRD/AliTRDtrack.h b/TRD/AliTRDtrack.h index 2dea83a9754..a14f0793a20 100644 --- a/TRD/AliTRDtrack.h +++ b/TRD/AliTRDtrack.h @@ -1,99 +1,225 @@ #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 +/* $Id$ */ -class AliTRDcluster; +/////////////////////////////////////////////////////////////////////////////// +// // +// Represents a reconstructed TRD track // +// // +/////////////////////////////////////////////////////////////////////////////// + +#ifndef ALIESDTRACK_H +#include "AliESDtrack.h" +#endif + +#ifndef ALIKALMANTRACK_H +#include "AliKalmanTrack.h" +#endif + + +#ifndef ALITRDCALPID_H +#include "Cal/AliTRDCalPID.h" +#endif -class AliTRDtrack : public TObject { - -// Represents reconstructed TRD track - -public: - - AliTRDtrack() { fN=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); - - 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];} - Double_t GetChi2() const {return fChi2;} - Double_t GetZchi2() const {return fZchi2;} - void GetCovariance(Double_t cov[15]) const; - Double_t GetdEdx() const {return fdEdx;} - Double_t GetEta() const {return fE;} - Int_t GetLabel() const {return fLab;} - Int_t GetNclusters() const {return fN;} - Double_t GetP() const { - return TMath::Abs(GetPt())*sqrt(1.+GetTgl()*GetTgl()); - } - Double_t GetPredictedChi2(const AliTRDcluster*) const ; - Double_t GetPt() const {return 0.299792458*0.4/GetC()/100;} - void GetPxPyPz(Double_t &px, Double_t &py, Double_t &pz) const ; - 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 GetTgl() const {return fT;} - Double_t GetX() const {return fX;} - Double_t GetY() const {return fY;} // returns running Y - Double_t GetZ() const {return fZ;} - - Float_t GetLikelihoodElectron() const { return fLhElectron; }; - - Bool_t IsSortable() const {return kTRUE;} - - Int_t PropagateTo(Double_t xr, - Double_t x0=8.72,Double_t rho=5.86e-3,Double_t pm=0.139); - Int_t Rotate(Double_t angle); - - void SetLabel(Int_t lab=0) {fLab=lab;} - void SetdEdx(Float_t dedx) {fdEdx=dedx;} - - void Update(const AliTRDcluster* c, Double_t chi2, UInt_t i); - - void SetLikelihoodElectron(Float_t l) { fLhElectron = l; }; - -protected: - - Int_t fLab; // track label - Double_t fChi2; // total chi2 value for R*phi measurements - Double_t fZchi2; // total chi2 value for Z measurements - 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 - - Short_t fN; // number of clusters associated with the track - UInt_t fIndex[200]; // global indexes of these clusters - Float_t fdQdl[200]; // cluster amplitudes corrected for track angles - - Float_t fLhElectron; // Likelihood to be an electron - - ClassDef(AliTRDtrack,2) // TRD reconstructed tracks +#ifndef ALITRDTRACKLET +#include "AliTRDtracklet.h" +#endif + +class AliTrackReference; +class AliTRDcluster; +class AliTRDtrack : public AliKalmanTrack { + + public: + + enum { kMAXCLUSTERSPERTRACK = 210 }; + + enum { kNdet = 540 + , kNstacks = 90 + , kNplane = AliESDtrack::kTRDnPlanes + , kNcham = 5 + , kNsect = 18 }; + + enum AliTRDPIDMethod { + kNN = 0 + , kLQ = 1 }; + + AliTRDtrack(); + AliTRDtrack(/*const*/ AliTRDcluster *c, Int_t index + , const Double_t xx[5], const Double_t cc[15] + , Double_t xr, Double_t alpha); + AliTRDtrack(const AliTRDtrack &t/*, const Bool_t owner = kTRUE*/); + AliTRDtrack(const AliESDtrack &t); + virtual ~AliTRDtrack(); + AliTRDtrack(const AliKalmanTrack &t, Double_t alpha); + + void ResetClusters() { SetChi2(0.0); + SetNumberOfClusters(0); } + Int_t Compare(const TObject *o) const; + void AddNWrong() { fNWrong++; } + void IncCross() { fNCross++; + if (fBackupTrack) + fBackupTrack->IncCross(); } + + Int_t GetSector() const; + Float_t GetClusterdQdl(Int_t i) const { return fdQdl[i]; } + Double_t GetdEdx() const { return fdEdx; } + Int_t GetNdedx() const { return fNdedx; } + Double_t GetPIDsignal() const { return GetdEdx(); } + Int_t GetClusterIndex(Int_t i) const { return fIndex[i]; } + using AliExternalTrackParam::GetC; + Double_t GetC() const { return AliExternalTrackParam + ::GetC(GetBz()); } + Double_t GetPredictedChi2(const AliTRDcluster *c + , Double_t h01) const; + AliTRDPIDMethod GetPIDMethod() const { return fPIDmethod; } + 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 GetLikelihoodElectron() const { return fLhElectron; } + Int_t GetSeedLabel() const { return fSeedLab; } + const Int_t *GetBackupIndexes() const { return fIndexBackup; } + const Int_t *GetIndexes() const { return fIndex; } + Int_t GetProlongation(Double_t xk + , Double_t &y + , Double_t &z); + Bool_t GetStop() const { return fStopped; } + Int_t GetNRotate() const { return fNRotate; } + Int_t GetNWrong() const { return fNWrong; } + Int_t GetNCross() const { return fNCross; } + Int_t GetNExpected() const { return fNExpected; } + Int_t GetNLast() const { return fNLast; } + Int_t GetNExpectedLast() const { return fNExpectedLast; } + AliTRDtracklet GetTracklets(Int_t i) const { return fTracklets[i]; } + Float_t GetBudget(Int_t i) const { return fBudget[i]; } + Float_t GetChi2Last() const { return fChi2Last; } + AliTRDtrack *GetBackupTrack() const { return fBackupTrack; } + // dummy to bridge the function in AliTRDtrackV1 + //Int_t GetNumberOfClusters() const { printf("AliTRDtrack::GetNumberOfClusters()\n"); + // return AliKalmanTrack::GetNumberOfClusters(); } + inline virtual Int_t GetNumberOfTracklets() const; + virtual Int_t GetTrackletIndex(Int_t plane) const { return plane>=0 && plane<6 + ? fTrackletIndex[plane] : -1; } + + + void SetdEdx(Double_t dedx) { fdEdx = dedx; } + void SetStop(Bool_t stop) { fStopped = stop; } + 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; } + void SetNWrong(Int_t nwrong) { fNWrong = nwrong; } + void SetNCross(Int_t ncross) { fNCross = ncross; } + void SetNExpected(Int_t nexp) { fNExpected = nexp; } + void SetNLast(Int_t nlast) { fNLast = nlast; } + void SetNExpectedLast(Int_t nexp) { fNExpectedLast = nexp; } + void SetChi2Last(Float_t chi2) { fChi2Last = chi2; } + void SetTracklets(Int_t i, AliTRDtracklet t) { fTracklets[i] = t; } + void SetBudget(Int_t i, Float_t budget) { fBudget[i] = budget; } + void SetPIDMethod(AliTRDPIDMethod method) { fPIDmethod = method; } + + void SetTrackSegmentDirMom(const Int_t plane); + void CookdEdx(Double_t low = 0.05, Double_t up = 0.7); + void CookdEdxTimBin(const Int_t tid); + Bool_t CookPID(Int_t &pidQuality); + void SetCluster(AliTRDcluster * const cl + , Int_t index = -1) { fClusters[(index == -1) + ? GetNumberOfClusters()-1 + : index] = cl; } + AliTRDcluster* GetCluster(Int_t layer) const { return (layer >= 0 && + layer < GetNumberOfClusters()) + ? fClusters[layer] + : 0x0; } + Float_t GetMomentumPlane(Int_t plane) const { return (plane >= 0 && + plane < kNplane) + ? fMom[plane] + : 0.0; } + const Double_t* GetPID() const { return fPID; } + Float_t GetSnpPlane(Int_t plane) const { return (plane >= 0 && + plane < kNplane) + ? fSnp[plane] + : 0.0; } + Float_t GetTglPlane(Int_t plane) const { return (plane >= 0 && + plane < kNplane) + ? fTgl[plane] + : 0.0; } + Float_t GetTrackLengthPlane(Int_t plane) const; + + void MakeBackupTrack(); + Bool_t PropagateTo(Double_t xr, Double_t x0 = 8.72, Double_t rho = 5.86e-3); + Int_t PropagateToR(Double_t xr, Double_t step); + Int_t PropagateToX(Double_t xr, Double_t step); + Bool_t Rotate(Double_t angle, Bool_t absolute = kFALSE); + Float_t StatusForTOF(); + Bool_t Update(const AliTRDcluster *c, Double_t chi2, Int_t index, Double_t h01); + Bool_t Update(const AliTRDtracklet &tracklet, Double_t chi2, Int_t index); + Int_t UpdateMI(/*const */AliTRDcluster *c, Double_t chi2 + , Int_t index, Double_t h01 + , Int_t plane, Int_t tid = 0); + + protected: + + AliTRDtrack &operator=(const AliTRDtrack &t); + + void CookdEdxNN(Float_t *dedx); + Double_t GetBz() const; + Bool_t Update(const AliCluster */*c*/, Double_t /*chi2*/, Int_t /*idx*/) { return 0; } + Double_t GetPredictedChi2(const AliCluster* /*c*/) const { return 0.0; } + + protected: + + Int_t fSeedLab; // Track label taken from seeding + Float_t fdEdx; // dE/dx (truncated mean) + Float_t fDE; // Integrated delta energy + Float_t fdEdxPlane[kNplane][AliTRDCalPID::kNSlicesLQ]; // dE/dx from all 6 planes in 3 slices each + Int_t fTimBinPlane[kNplane]; // Time bin of Max cluster from all 6 planes + UChar_t fPIDquality; // No of planes used for PID calculation + Double_t fPID[AliPID::kSPECIES]; // PID probabilities + Float_t fMom[kNplane]; // Track momentum at chamber entrance + Float_t fSnp[kNplane]; // Track direction + Float_t fTgl[kNplane]; // Track direction + AliTRDcluster *fClusters[kMAXCLUSTERSPERTRACK]; // List of assigned clusters + Bool_t fClusterOwner; // Indicates the track is owner of cluster + AliTRDPIDMethod fPIDmethod; // Switch between different PID methods + Bool_t fStopped; // Track stop indication + 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 + + Int_t fTrackletIndex[6]; // Tracklets index in the tracker list + + ClassDef(AliTRDtrack,9) // TRD reconstructed tracks }; +//___________________________________________________________ +inline Int_t AliTRDtrack::GetNumberOfTracklets() const +{ + Int_t ntrklt = 0; + for(int ip=0; ip<6; ip++) if(fTrackletIndex[ip] >= 0) ntrklt++; + return ntrklt; +} + #endif +