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006b5f7f | 1 | #ifndef ALIITSTRACKV2_H |
2 | #define ALIITSTRACKV2_H | |
3 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
4 | * See cxx source for full Copyright notice */ | |
5 | ||
6 | //------------------------------------------------------------------------- | |
7 | // ITS Track Class | |
8 | // | |
9 | // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch | |
a9a2d814 | 10 | // dEdx analysis by: Boris Batyunya, JINR, Boris.Batiounia@cern.ch |
006b5f7f | 11 | //------------------------------------------------------------------------- |
12 | ||
006b5f7f | 13 | #include <AliKalmanTrack.h> |
44347160 | 14 | #include "AliITSRecoParam.h" |
e50912db | 15 | #include "AliITSgeomTGeo.h" |
006b5f7f | 16 | |
83d73500 | 17 | class AliESDtrack; |
006b5f7f | 18 | |
19 | //_____________________________________________________________________________ | |
8676d691 | 20 | class AliITStrackV2 : public AliKalmanTrack { |
006b5f7f | 21 | public: |
22b13da0 | 22 | AliITStrackV2(); |
67c3dcbe | 23 | AliITStrackV2(AliESDtrack& t,Bool_t c=kFALSE) throw (const Char_t *); |
006b5f7f | 24 | AliITStrackV2(const AliITStrackV2& t); |
43d2197f | 25 | ~AliITStrackV2(){fESDtrack=0;} |
6c94f330 | 26 | |
e50912db | 27 | Bool_t CorrectForMeanMaterial(Double_t xOverX0, Double_t xTimesRho, |
28 | Bool_t anglecorr=kFALSE) { | |
29 | return AliExternalTrackParam::CorrectForMeanMaterial(xOverX0,xTimesRho,GetMass(),anglecorr); | |
30 | } | |
31 | Bool_t CorrectForMaterial(Double_t d, Double_t x0=AliITSRecoParam::GetX0Air()) { | |
32 | // deprecated: use CorrectForMeanMaterial instead | |
6c94f330 | 33 | return AliExternalTrackParam::CorrectForMaterial(d,x0,GetMass()); |
34 | } | |
e50912db | 35 | Bool_t PropagateTo(Double_t xr, Double_t d, Double_t x0=AliITSRecoParam::GetX0Air()); |
36 | Bool_t PropagateToTGeo(Double_t xToGo, Int_t nstep, Double_t &xOverX0, Double_t &xTimesRho); | |
37 | Bool_t PropagateToTGeo(Double_t xToGo, Int_t nstep=1) { | |
38 | Double_t dummy1,dummy2; return PropagateToTGeo(xToGo,nstep,dummy1,dummy2); | |
afd25725 | 39 | } |
6c94f330 | 40 | Double_t GetPredictedChi2(const AliCluster *cluster) const; |
41 | Bool_t Update(const AliCluster *cl, Double_t chi2, Int_t i); | |
42 | ||
e50912db | 43 | Bool_t PropagateToVertex(const AliESDVertex *v,Double_t d=0.,Double_t x0=0.); |
6c94f330 | 44 | Bool_t Propagate(Double_t alpha, Double_t xr); |
afd25725 | 45 | Bool_t MeanBudgetToPrimVertex(Double_t xyz[3], Double_t step, Double_t &d) const; |
6c94f330 | 46 | Bool_t Improve(Double_t x0,Double_t xyz[3],Double_t ers[3]); |
47 | ||
7f6ddf58 | 48 | void SetdEdx(Double_t dedx) {fdEdx=dedx;} |
a9a2d814 | 49 | void SetSampledEdx(Float_t q, Int_t i); |
b9671574 | 50 | Float_t GetSampledEdx(Int_t i) const {return fdEdxSample[i];} |
a9a2d814 | 51 | void CookdEdx(Double_t low=0., Double_t up=0.51); |
006b5f7f | 52 | void SetDetectorIndex(Int_t i) {SetLabel(i);} |
7f6ddf58 | 53 | void ResetClusters() { SetChi2(0.); SetNumberOfClusters(0); } |
15dd636f | 54 | void UpdateESDtrack(ULong_t flags) const; |
e43c066c | 55 | |
1aedd96e | 56 | AliESDtrack *GetESDtrack() const {return fESDtrack;} |
e43c066c | 57 | |
006b5f7f | 58 | Int_t GetDetectorIndex() const {return GetLabel();} |
7f6ddf58 | 59 | Double_t GetdEdx() const {return fdEdx;} |
83d73500 | 60 | Double_t GetPIDsignal() const {return GetdEdx();} |
6c94f330 | 61 | Double_t GetC() const {return AliExternalTrackParam::GetC(GetBz());} |
62 | Double_t GetD(Double_t x, Double_t y) const { | |
63 | return AliExternalTrackParam::GetD(x,y,GetBz()); | |
64 | } | |
65 | void GetDZ(Double_t xv, Double_t yv, Double_t zv, Float_t dz[2]) const { | |
66 | return AliExternalTrackParam::GetDZ(xv,yv,zv,GetBz(),dz); | |
67 | } | |
68 | ||
e50912db | 69 | Bool_t GetGlobalXYZat(Double_t xloc,Double_t &x,Double_t &y,Double_t &z) const; |
8602c008 | 70 | Bool_t GetPhiZat(Double_t r,Double_t &phi,Double_t &z) const; |
e50912db | 71 | Bool_t GetLocalXat(Double_t r,Double_t &xloc) const; |
6c94f330 | 72 | |
006b5f7f | 73 | Int_t Compare(const TObject *o) const; |
006b5f7f | 74 | Int_t GetClusterIndex(Int_t i) const {return fIndex[i];} |
6c94f330 | 75 | Bool_t Invariant() const; |
ef7253ac | 76 | |
e50912db | 77 | void SetExtraCluster(Int_t i, Int_t idx) {fIndex[AliITSgeomTGeo::kNLayers+i]=idx;} |
78 | Int_t GetExtraCluster(Int_t i) const {return fIndex[AliITSgeomTGeo::kNLayers+i];} | |
c84a5e9e | 79 | |
6c94f330 | 80 | protected: |
81 | Double_t GetBz() const ; | |
82 | Double_t fdEdx; // dE/dx | |
8602c008 | 83 | |
84 | static const Int_t fgkWARN; //! used for debugging purposes | |
6c94f330 | 85 | Float_t fdEdxSample[4]; // array of dE/dx samples b.b. |
15dd636f | 86 | |
e50912db | 87 | Int_t fIndex[2*AliITSgeomTGeo::kNLayers]; // indices of associated clusters |
15dd636f | 88 | |
ef7253ac | 89 | AliESDtrack *fESDtrack; //! pointer to the connected ESD track |
006b5f7f | 90 | |
6c94f330 | 91 | private: |
92 | AliITStrackV2 &operator=(const AliITStrackV2 &tr); | |
8602c008 | 93 | ClassDef(AliITStrackV2,7) //ITS reconstructed track |
6c94f330 | 94 | }; |
a9a2d814 | 95 | |
23efe5f1 | 96 | inline |
97 | void AliITStrackV2::SetSampledEdx(Float_t q, Int_t i) { | |
98 | //---------------------------------------------------------------------- | |
a9a2d814 | 99 | // This function stores dEdx sample corrected for the track segment length |
100 | // Origin: Boris Batyunya, JINR, Boris.Batiounia@cern.ch | |
23efe5f1 | 101 | //---------------------------------------------------------------------- |
a9a2d814 | 102 | if (i<0) return; |
103 | if (i>3) return; | |
23efe5f1 | 104 | Double_t s=GetSnp(), t=GetTgl(); |
23efe5f1 | 105 | q *= TMath::Sqrt((1-s*s)/(1+t*t)); |
106 | fdEdxSample[i]=q; | |
23efe5f1 | 107 | } |
c84a5e9e | 108 | |
006b5f7f | 109 | #endif |
110 | ||
111 |