Modified for CAF
[u/mrichter/AliRoot.git] / ITS / AliITStrackV2.h
CommitLineData
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>
006b5f7f 14#include "AliITSrecoV2.h"
15
83d73500 16class AliESDtrack;
006b5f7f 17
18//_____________________________________________________________________________
8676d691 19class AliITStrackV2 : public AliKalmanTrack {
006b5f7f 20public:
22b13da0 21 AliITStrackV2();
67c3dcbe 22 AliITStrackV2(AliESDtrack& t,Bool_t c=kFALSE) throw (const Char_t *);
006b5f7f 23 AliITStrackV2(const AliITStrackV2& t);
6c94f330 24
25 Bool_t CorrectForMaterial(Double_t d, Double_t x0=21.82) {
26 return AliExternalTrackParam::CorrectForMaterial(d,x0,GetMass());
27 }
28 Bool_t PropagateTo(Double_t xr, Double_t d, Double_t x0=21.82);
29 Double_t GetPredictedChi2(const AliCluster *cluster) const;
30 Bool_t Update(const AliCluster *cl, Double_t chi2, Int_t i);
31
32 Bool_t
33 PropagateToVertex(const AliESDVertex *v,Double_t d=0.,Double_t x0=0.);
34 Bool_t Propagate(Double_t alpha, Double_t xr);
35 Bool_t Improve(Double_t x0,Double_t xyz[3],Double_t ers[3]);
36
7f6ddf58 37 void SetdEdx(Double_t dedx) {fdEdx=dedx;}
a9a2d814 38 void SetSampledEdx(Float_t q, Int_t i);
39 void CookdEdx(Double_t low=0., Double_t up=0.51);
006b5f7f 40 void SetDetectorIndex(Int_t i) {SetLabel(i);}
7f6ddf58 41 void ResetClusters() { SetChi2(0.); SetNumberOfClusters(0); }
15dd636f 42 void UpdateESDtrack(ULong_t flags) const;
e43c066c 43
1aedd96e 44 AliESDtrack *GetESDtrack() const {return fESDtrack;}
e43c066c 45
006b5f7f 46 Int_t GetDetectorIndex() const {return GetLabel();}
7f6ddf58 47 Double_t GetdEdx() const {return fdEdx;}
83d73500 48 Double_t GetPIDsignal() const {return GetdEdx();}
6c94f330 49 Double_t GetC() const {return AliExternalTrackParam::GetC(GetBz());}
50 Double_t GetD(Double_t x, Double_t y) const {
51 return AliExternalTrackParam::GetD(x,y,GetBz());
52 }
53 void GetDZ(Double_t xv, Double_t yv, Double_t zv, Float_t dz[2]) const {
54 return AliExternalTrackParam::GetDZ(xv,yv,zv,GetBz(),dz);
55 }
56
57 Bool_t GetGlobalXYZat(Double_t r,Double_t &x,Double_t &y,Double_t &z) const;
58
006b5f7f 59 Int_t Compare(const TObject *o) const;
006b5f7f 60 Int_t GetClusterIndex(Int_t i) const {return fIndex[i];}
6c94f330 61 Bool_t Invariant() const;
ef7253ac 62
63 void SetExtraCluster(Int_t i, Int_t idx) {fIndex[kMaxLayer+i]=idx;}
64 Int_t GetExtraCluster(Int_t i) const {return fIndex[kMaxLayer+i];}
c84a5e9e 65
6c94f330 66protected:
67 Double_t GetBz() const ;
68 Double_t fdEdx; // dE/dx
69 Float_t fdEdxSample[4]; // array of dE/dx samples b.b.
15dd636f 70
ef7253ac 71 Int_t fIndex[2*kMaxLayer]; // indices of associated clusters
15dd636f 72
ef7253ac 73 AliESDtrack *fESDtrack; //! pointer to the connected ESD track
006b5f7f 74
6c94f330 75private:
76 AliITStrackV2 &operator=(const AliITStrackV2 &tr);
77 ClassDef(AliITStrackV2,6) //ITS reconstructed track
78};
a9a2d814 79
23efe5f1 80inline
81void AliITStrackV2::SetSampledEdx(Float_t q, Int_t i) {
82 //----------------------------------------------------------------------
a9a2d814 83 // This function stores dEdx sample corrected for the track segment length
84 // Origin: Boris Batyunya, JINR, Boris.Batiounia@cern.ch
23efe5f1 85 //----------------------------------------------------------------------
a9a2d814 86 if (i<0) return;
87 if (i>3) return;
23efe5f1 88 Double_t s=GetSnp(), t=GetTgl();
23efe5f1 89 q *= TMath::Sqrt((1-s*s)/(1+t*t));
90 fdEdxSample[i]=q;
23efe5f1 91}
c84a5e9e 92
006b5f7f 93#endif
94
95