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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 */ | |
5 | /* $Id$ */ | |
6 | ||
7 | //------------------------------------------------------- | |
8 | // TPC Track Class | |
9 | // | |
10 | // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch | |
11 | // | |
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)) | |
18 | // | |
19 | //------------------------------------------------------- | |
20 | ||
21 | #include <AliKalmanTrack.h> | |
22 | #include <TMath.h> | |
23 | ||
24 | #include "AliTPCreco.h" | |
25 | #include "AliExternalTrackParam.h" | |
26 | class AliESDtrack; | |
27 | class AliESDVertex; | |
28 | class TTreeSRedirector; | |
29 | //_____________________________________________________________________________ | |
30 | class AliTPCtrack : public AliKalmanTrack { | |
31 | public: | |
32 | AliTPCtrack(); | |
33 | AliTPCtrack(Double_t x, Double_t alpha, const Double_t p[5], | |
34 | const Double_t cov[15], Int_t index); | |
35 | AliTPCtrack(const AliESDtrack& t, TTreeSRedirector *pcstream=0); | |
36 | AliTPCtrack(const AliTPCtrack& t); | |
37 | AliTPCtrack& operator=(const AliTPCtrack& o); | |
38 | virtual ~AliTPCtrack() {} | |
39 | ||
40 | Int_t Compare(const TObject *o) const; | |
41 | ||
42 | void SetdEdx(Double_t dedx) {fdEdx=dedx;} | |
43 | Double_t GetdEdx() const {return fdEdx;} | |
44 | Double_t GetPIDsignal() const {return GetdEdx();} | |
45 | ||
46 | Int_t GetClusterIndex(Int_t i) const {return fIndex[i];} | |
47 | void SetClusterIndex(Int_t i, Int_t idx) {fIndex[i]=idx;} | |
48 | ||
49 | Double_t GetC() const {return AliExternalTrackParam::GetC(GetBz());} | |
50 | Double_t GetC(Double_t b) const {return AliExternalTrackParam::GetC(b);} | |
51 | ||
52 | Double_t GetPredictedChi2(const AliCluster *cluster) const; | |
53 | Bool_t PropagateTo(Double_t xr, Double_t rho=0.9e-3, Double_t x0=28.94); | |
54 | Bool_t Update(const AliCluster *c, Double_t chi2, Int_t i); | |
55 | Bool_t Rotate(Double_t alpha) { | |
56 | return AliExternalTrackParam::Rotate(GetAlpha()+alpha); | |
57 | } | |
58 | ||
59 | Bool_t PropagateToVertex(const AliESDVertex *v, | |
60 | Double_t rho=1.2e-3, Double_t x0=36.66); | |
61 | void ResetClusters() {SetNumberOfClusters(0); SetChi2(0.);} | |
62 | void UpdatePoints();//update points | |
63 | Float_t* GetPoints() {return fPoints;} | |
64 | ||
65 | Float_t Density(Int_t row0, Int_t row1); //calculate cluster density | |
66 | Float_t Density2(Int_t row0, Int_t row1); //calculate cluster density | |
67 | Double_t GetD(Double_t x=0, Double_t y=0) const { | |
68 | return AliExternalTrackParam::GetD(x,y,GetBz()); | |
69 | } | |
70 | AliExternalTrackParam & GetReference(){ return fReference;} | |
71 | void UpdateReference(){ new (&fReference) AliExternalTrackParam(*this);} | |
72 | Int_t GetKinkIndex(Int_t i) const{ return fKinkIndexes[i];} | |
73 | Int_t* GetKinkIndexes() { return fKinkIndexes;} | |
74 | Int_t GetV0Index(Int_t i) const{ return fV0Indexes[i];} | |
75 | Int_t* GetV0Indexes() { return fV0Indexes;} | |
76 | ||
77 | void SetFirstPoint(Int_t f) {fFirstPoint=f;} | |
78 | void SetLastPoint(Int_t f) {fLastPoint=f;} | |
79 | void SetRemoval(Int_t f) {fRemoval=f;} | |
80 | void SetLab2(Int_t f) {fLab2=f;} | |
81 | void SetKinkIndex(Int_t i, Int_t idx) {fKinkIndexes[i]=idx;} | |
82 | void SetBConstrain(Bool_t b) {fBConstrain=b;} | |
83 | void SetNFoundable(Int_t n) {fNFoundable=n;} | |
84 | void SetNShared(Int_t s) {fNShared=s;} | |
85 | ||
86 | Int_t GetFirstPoint() const {return fFirstPoint;} | |
87 | Int_t GetLastPoint() const {return fLastPoint;} | |
88 | Int_t GetRemoval() const {return fRemoval;} | |
89 | Int_t GetLab2() const {return fLab2;} | |
90 | Bool_t GetBConstrain() const {return fBConstrain;} | |
91 | Int_t GetNShared() const {return fNShared;} | |
92 | Int_t GetNFoundable() const {return fNFoundable;} | |
93 | ||
94 | protected: | |
95 | Double_t fdEdx; // dE/dx | |
96 | ||
97 | Int_t fIndex[kMaxRow]; // indices of associated clusters | |
98 | Float_t fPoints[4]; //first, max dens row end points of the track and max density | |
99 | // MI addition | |
100 | Float_t fSdEdx; // sigma of dedx | |
101 | // | |
102 | Int_t fNFoundable; //number of foundable clusters - dead zone taken to the account | |
103 | Bool_t fBConstrain; // indicate seeding with vertex constrain | |
104 | Int_t fLastPoint; // last cluster position | |
105 | Int_t fFirstPoint; // first cluster position | |
106 | Int_t fRemoval; // removal factor | |
107 | Int_t fTrackType; // track type - 0 - normal - 1 - kink - 2 -V0 3- double found | |
108 | Int_t fLab2; // index of corresponding track (kink, V0, double) | |
109 | Int_t fNShared; // number of shared points | |
110 | AliExternalTrackParam fReference; // track parameters at the middle of the chamber | |
111 | Float_t fKinkPoint[12]; //radius, of kink, dfi and dtheta | |
112 | Int_t fKinkIndexes[3]; // kink indexes - minus = mother + daughter | |
113 | Int_t fV0Indexes[3]; // kink indexes - minus = mother + daughter | |
114 | ||
115 | ClassDef(AliTPCtrack,4) // Time Projection Chamber reconstructed tracks | |
116 | }; | |
117 | ||
118 | #endif | |
119 |