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73042f01 | 1 | #ifndef ALITPCTRACK_H |
2 | #define ALITPCTRACK_H | |
3 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
4 | * See cxx source for full Copyright notice */ | |
0938c7d3 | 5 | /* $Id$ */ |
6 | ||
73042f01 | 7 | //------------------------------------------------------- |
8 | // TPC Track Class | |
9 | // | |
10 | // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch | |
2fc0c115 | 11 | // |
6c94f330 | 12 | // The track parameterization is fixed in the following way: |
13 | // param0: local Y-coordinate of a track (cm) | |
14 | // param1: local Z-coordinate of a track (cm) | |
15 | // param2: local sine of the track momentum azimuth angle | |
16 | // param3: tangent of the track momentum dip angle | |
17 | // param4: 1/pt (1/(GeV/c)) | |
2fc0c115 | 18 | // |
6c94f330 | 19 | //------------------------------------------------------- |
20 | ||
b19a0509 | 21 | #include <AliKalmanTrack.h> |
73042f01 | 22 | #include <TMath.h> |
73042f01 | 23 | |
b9de75e1 | 24 | #include "AliTPCreco.h" |
51ad6848 | 25 | #include "AliExternalTrackParam.h" |
83d73500 | 26 | class AliESDtrack; |
6c94f330 | 27 | class AliESDVertex; |
9c9d2487 | 28 | |
73042f01 | 29 | //_____________________________________________________________________________ |
b19a0509 | 30 | class AliTPCtrack : public AliKalmanTrack { |
73042f01 | 31 | public: |
9c8948ff | 32 | AliTPCtrack(); |
6c94f330 | 33 | AliTPCtrack(Double_t x, Double_t alpha, const Double_t p[5], |
34 | const Double_t cov[15], Int_t index); | |
83d73500 | 35 | AliTPCtrack(const AliESDtrack& t); |
b19a0509 | 36 | AliTPCtrack(const AliTPCtrack& t); |
7c27857f | 37 | virtual ~AliTPCtrack() {} |
77e58468 | 38 | |
be9c5115 | 39 | Int_t Compare(const TObject *o) const; |
40 | ||
6c94f330 | 41 | void SetdEdx(Double_t dedx) {fdEdx=dedx;} |
42 | Double_t GetdEdx() const {return fdEdx;} | |
43 | Double_t GetPIDsignal() const {return GetdEdx();} | |
9c9d2487 | 44 | |
b9de75e1 | 45 | Int_t GetClusterIndex(Int_t i) const {return fIndex[i];} |
b9671574 | 46 | void SetClusterIndex(Int_t i, Int_t idx) {fIndex[i]=idx;} |
b9de75e1 | 47 | |
6c94f330 | 48 | Double_t GetC() const {return AliExternalTrackParam::GetC(GetBz());} |
be9c5115 | 49 | |
6c94f330 | 50 | Double_t GetPredictedChi2(const AliCluster *cluster) const; |
51 | Bool_t PropagateTo(Double_t xr, Double_t rho=0.9e-3, Double_t x0=28.94); | |
52 | Bool_t Update(const AliCluster *c, Double_t chi2, Int_t i); | |
53 | Bool_t Rotate(Double_t alpha) { | |
54 | return AliExternalTrackParam::Rotate(GetAlpha()+alpha); | |
55 | } | |
56 | ||
57 | Bool_t PropagateToVertex(const AliESDVertex *v, | |
58 | Double_t rho=1.2e-3, Double_t x0=36.66); | |
a91e73bc | 59 | void ResetClusters() {SetNumberOfClusters(0); SetChi2(0.);} |
51ad6848 | 60 | void UpdatePoints();//update points |
61 | Float_t* GetPoints() {return fPoints;} | |
6c94f330 | 62 | |
51584047 | 63 | Float_t Density(Int_t row0, Int_t row1); //calculate cluster density |
64 | Float_t Density2(Int_t row0, Int_t row1); //calculate cluster density | |
6c94f330 | 65 | Double_t GetD(Double_t x=0, Double_t y=0) const { |
66 | return AliExternalTrackParam::GetD(x,y,GetBz()); | |
67 | } | |
51ad6848 | 68 | AliExternalTrackParam & GetReference(){ return fReference;} |
69 | void UpdateReference(){ new (&fReference) AliExternalTrackParam(*this);} | |
81e97e0d | 70 | Int_t GetKinkIndex(Int_t i) const{ return fKinkIndexes[i];} |
51ad6848 | 71 | Int_t* GetKinkIndexes() { return fKinkIndexes;} |
81e97e0d | 72 | Int_t GetV0Index(Int_t i) const{ return fV0Indexes[i];} |
73 | Int_t* GetV0Indexes() { return fV0Indexes;} | |
73042f01 | 74 | |
b9671574 | 75 | void SetFirstPoint(Int_t f) {fFirstPoint=f;} |
76 | void SetLastPoint(Int_t f) {fLastPoint=f;} | |
77 | void SetRemoval(Int_t f) {fRemoval=f;} | |
78 | void SetLab2(Int_t f) {fLab2=f;} | |
79 | void SetKinkIndex(Int_t i, Int_t idx) {fKinkIndexes[i]=idx;} | |
80 | void SetBConstrain(Bool_t b) {fBConstrain=b;} | |
81 | void SetNFoundable(Int_t n) {fNFoundable=n;} | |
82 | void SetNShared(Int_t s) {fNShared=s;} | |
83 | ||
84 | Int_t GetFirstPoint() const {return fFirstPoint;} | |
85 | Int_t GetLastPoint() const {return fLastPoint;} | |
86 | Int_t GetRemoval() const {return fRemoval;} | |
87 | Int_t GetLab2() const {return fLab2;} | |
88 | Bool_t GetBConstrain() const {return fBConstrain;} | |
89 | Int_t GetNShared() const {return fNShared;} | |
90 | Int_t GetNFoundable() const {return fNFoundable;} | |
91 | ||
6c94f330 | 92 | protected: |
93 | Double_t GetBz() const; | |
7f6ddf58 | 94 | Double_t fdEdx; // dE/dx |
73042f01 | 95 | |
51584047 | 96 | Int_t fIndex[kMaxRow]; // indices of associated clusters |
51ad6848 | 97 | Float_t fPoints[4]; //first, max dens row end points of the track and max density |
2fc0c115 | 98 | // MI addition |
99 | Float_t fSdEdx; // sigma of dedx | |
100 | // | |
101 | Int_t fNFoundable; //number of foundable clusters - dead zone taken to the account | |
102 | Bool_t fBConstrain; // indicate seeding with vertex constrain | |
103 | Int_t fLastPoint; // last cluster position | |
104 | Int_t fFirstPoint; // first cluster position | |
105 | Int_t fRemoval; // removal factor | |
106 | Int_t fTrackType; // track type - 0 - normal - 1 - kink - 2 -V0 3- double found | |
107 | Int_t fLab2; // index of corresponding track (kink, V0, double) | |
108 | Int_t fNShared; // number of shared points | |
51ad6848 | 109 | AliExternalTrackParam fReference; // track parameters at the middle of the chamber |
2fc0c115 | 110 | Float_t fKinkPoint[12]; //radius, of kink, dfi and dtheta |
51ad6848 | 111 | Int_t fKinkIndexes[3]; // kink indexes - minus = mother + daughter |
81e97e0d | 112 | Int_t fV0Indexes[3]; // kink indexes - minus = mother + daughter |
24de2d6d | 113 | |
6c94f330 | 114 | ClassDef(AliTPCtrack,3) // Time Projection Chamber reconstructed tracks |
73042f01 | 115 | }; |
116 | ||
73042f01 | 117 | #endif |
118 |