X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;ds=sidebyside;f=TPC%2FAliTPCtrack.h;h=8c59fcdcc5117321683ccd247afa99bd761836c4;hb=029cd3275e6e694459a06b5d0319b4ac2df73597;hp=1626f60d490ea0981a5a63448308369b45264957;hpb=b9de75e1333d627d62c46dc34163b73b48a01fee;p=u%2Fmrichter%2FAliRoot.git diff --git a/TPC/AliTPCtrack.h b/TPC/AliTPCtrack.h index 1626f60d490..8c59fcdcc51 100644 --- a/TPC/AliTPCtrack.h +++ b/TPC/AliTPCtrack.h @@ -2,6 +2,7 @@ #define ALITPCTRACK_H /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * * See cxx source for full Copyright notice */ +/* $Id$ */ //------------------------------------------------------- // TPC Track Class @@ -22,46 +23,73 @@ * external param3: tangent of the track momentum dip angle * * external param4: 1/pt (1/(GeV/c)) * *****************************************************************************/ - #include #include #include "AliTPCreco.h" -class AliTPCClustersArray; -class AliTPCcluster; +class AliBarrelTrack; +class AliESDtrack; //_____________________________________________________________________________ class AliTPCtrack : public AliKalmanTrack { public: - AliTPCtrack():AliKalmanTrack(){} + AliTPCtrack(); AliTPCtrack(UInt_t index, const Double_t xx[5], const Double_t cc[15], Double_t xr, Double_t alpha); AliTPCtrack(const AliKalmanTrack& t, Double_t alpha); + AliTPCtrack(const AliESDtrack& t); AliTPCtrack(const AliTPCtrack& t); - Int_t PropagateToVertex( - Double_t x0=36.66,Double_t rho=1.2e-3,Double_t pm=0.139); + virtual ~AliTPCtrack() {} + Int_t PropagateToVertex(Double_t x0=36.66,Double_t rho=1.2e-3); Int_t Rotate(Double_t angle); - void SetdEdx(Float_t dedx) {fdEdx=dedx;} + void SetdEdx(Double_t dedx) {fdEdx=dedx;} + Double_t GetYat(Double_t x) const ; Double_t GetX() const {return fX;} Double_t GetAlpha() const {return fAlpha;} Double_t GetdEdx() const {return fdEdx;} + Double_t GetPIDsignal() const {return GetdEdx();} Double_t GetY() const {return fP0;} Double_t GetZ() const {return fP1;} - Double_t GetSnp() const {return fX*fP4 - fP2;} - Double_t Get1Pt() const {return fP4*GetConvConst();} + Double_t GetSnp() const {return fX*fP4 - fP2;} + Double_t + Get1Pt() const { return (1e-9*TMath::Abs(fP4)/fP4 + fP4)*GetConvConst(); } Double_t GetTgl() const {return fP3;} Double_t GetSigmaY2() const {return fC00;} Double_t GetSigmaZ2() const {return fC11;} +// Some methods useful for users. Implementation is not +// optimized for speed but for minimal maintanance effort + Double_t Phi() const; + Double_t Theta() const {return TMath::Pi()/2.-TMath::ATan(GetTgl());} + Double_t Px() const {return TMath::Cos(Phi())/TMath::Abs(Get1Pt());} + Double_t Py() const {return TMath::Sin(Phi())/TMath::Abs(Get1Pt());} + Double_t Pz() const {return GetTgl()/TMath::Abs(Get1Pt());} + Double_t Pt() const {return 1./TMath::Abs(Get1Pt());} + Double_t P() const {return TMath::Sqrt(Pt()*Pt()+Pz()*Pz());} + Int_t Compare(const TObject *o) const; void GetExternalParameters(Double_t& xr, Double_t x[5]) const ; void GetExternalCovariance(Double_t cov[15]) const ; + // [SR, 01.04.2003] + + void GetBarrelTrack(AliBarrelTrack *track); + + void ResetNWrong() {fNWrong = 0;} + void ResetNRotation() {fNRotation = 0;} + + Int_t GetNWrong() const {return fNWrong;} + Int_t GetNRotation() const {return fNRotation;} + + Int_t GetNumber() const {return fNumber;} + void SetNumber(Int_t n) {fNumber = n;} + // + Int_t GetClusterIndex(Int_t i) const {return fIndex[i];} //******** To be removed next release !!! ************** @@ -73,21 +101,40 @@ public: cc[3 ]=fC20; cc[4 ]=fC21; cc[5 ]=fC22; cc[6 ]=fC40; cc[7 ]=fC41; cc[8 ]=fC42; cc[9 ]=fC44; cc[10]=fC30; cc[11]=fC31; cc[12]=fC32; cc[13]=fC43; cc[14]=fC33; - } + } //****************************************************** virtual Double_t GetPredictedChi2(const AliCluster *cluster) const; - Int_t PropagateTo(Double_t xr, - Double_t x0=28.94,Double_t rho=0.9e-3,Double_t pm=0.139); + Int_t PropagateTo(Double_t xr,Double_t x0=28.94,Double_t rho=0.9e-3); Int_t Update(const AliCluster* c, Double_t chi2, UInt_t i); void ResetCovariance(); - -private: + // MI addition + Float_t fSdEdx; // sigma of dedx + // + Int_t fNFoundable; //number of foundable clusters - dead zone taken to the account + Bool_t fBConstrain; // indicate seeding with vertex constrain + Int_t fLastPoint; // last cluster position + Int_t fFirstPoint; // first cluster position + Int_t fRemoval; // removal factor + Int_t fTrackType; // track type - 0 - normal - 1 - kink - 2 -V0 3- double found + Int_t fLab2; // index of corresponding track (kink, V0, double) + Int_t fNShared; // number of shared points + Float_t fKinkPoint[12]; //radius, of kink, dfi and dtheta + // + // TClonesArray * fHelixIn; //array of helixes + //TClonesArray * fHelixOut; //array of helixes + // + Float_t Density(Int_t row0, Int_t row1); //calculate cluster density + Float_t Density2(Int_t row0, Int_t row1); //calculate cluster density + Double_t GetZat0() const; + Double_t GetD(Double_t x=0, Double_t y=0) const; + +protected: Double_t fX; // X-coordinate of this track (reference plane) Double_t fAlpha; // Rotation angle the local (TPC sector) // coordinate system and the global ALICE one. - Double_t fdEdx; // dE/dx + Double_t fdEdx; // dE/dx Double_t fP0; // Y-coordinate of a track Double_t fP1; // Z-coordinate of a track @@ -100,8 +147,13 @@ private: Double_t fC20, fC21, fC22; // of the Double_t fC30, fC31, fC32, fC33; // track Double_t fC40, fC41, fC42, fC43, fC44; // parameters - - UInt_t fIndex[kMaxRow]; // indices of associated clusters + + Int_t fIndex[kMaxRow]; // indices of associated clusters + + //[SR, 01.04.2003] + Int_t fNWrong; // number of wrong clusters + Int_t fNRotation; // number of rotations + Int_t fNumber; // magic number used for number of clusters ClassDef(AliTPCtrack,1) // Time Projection Chamber reconstructed tracks }; @@ -111,10 +163,9 @@ void AliTPCtrack::GetExternalParameters(Double_t& xr, Double_t x[5]) const { //--------------------------------------------------------------------- // This function return external TPC track representation //--------------------------------------------------------------------- - xr=fX; + xr=fX; x[0]=GetY(); x[1]=GetZ(); x[2]=GetSnp(); x[3]=GetTgl(); x[4]=Get1Pt(); } #endif -