Additional protection for the case when galice.root does not exist
[u/mrichter/AliRoot.git] / ITS / AliITStrackV2.h
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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"
006b5f7f 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
afd25725 25 Bool_t CorrectForMaterial(Double_t d, Double_t x0=kX0Air) {
6c94f330 26 return AliExternalTrackParam::CorrectForMaterial(d,x0,GetMass());
27 }
afd25725 28 Bool_t CorrectForMeanMaterial(Double_t xOverX0, Double_t xTimesRho) {
29 return AliExternalTrackParam::CorrectForMeanMaterial(xOverX0,xTimesRho,GetMass());
30 }
31 Bool_t PropagateTo(Double_t xr, Double_t d, Double_t x0=kX0Air);
32 Bool_t PropagateToTGeo(Double_t xToGo, Int_t nstep=1);
6c94f330 33 Double_t GetPredictedChi2(const AliCluster *cluster) const;
34 Bool_t Update(const AliCluster *cl, Double_t chi2, Int_t i);
35
36 Bool_t
37 PropagateToVertex(const AliESDVertex *v,Double_t d=0.,Double_t x0=0.);
38 Bool_t Propagate(Double_t alpha, Double_t xr);
afd25725 39 Bool_t MeanBudgetToPrimVertex(Double_t xyz[3], Double_t step, Double_t &d) const;
6c94f330 40 Bool_t Improve(Double_t x0,Double_t xyz[3],Double_t ers[3]);
41
7f6ddf58 42 void SetdEdx(Double_t dedx) {fdEdx=dedx;}
a9a2d814 43 void SetSampledEdx(Float_t q, Int_t i);
b9671574 44 Float_t GetSampledEdx(Int_t i) const {return fdEdxSample[i];}
a9a2d814 45 void CookdEdx(Double_t low=0., Double_t up=0.51);
006b5f7f 46 void SetDetectorIndex(Int_t i) {SetLabel(i);}
7f6ddf58 47 void ResetClusters() { SetChi2(0.); SetNumberOfClusters(0); }
15dd636f 48 void UpdateESDtrack(ULong_t flags) const;
e43c066c 49
1aedd96e 50 AliESDtrack *GetESDtrack() const {return fESDtrack;}
e43c066c 51
006b5f7f 52 Int_t GetDetectorIndex() const {return GetLabel();}
7f6ddf58 53 Double_t GetdEdx() const {return fdEdx;}
83d73500 54 Double_t GetPIDsignal() const {return GetdEdx();}
6c94f330 55 Double_t GetC() const {return AliExternalTrackParam::GetC(GetBz());}
56 Double_t GetD(Double_t x, Double_t y) const {
57 return AliExternalTrackParam::GetD(x,y,GetBz());
58 }
59 void GetDZ(Double_t xv, Double_t yv, Double_t zv, Float_t dz[2]) const {
60 return AliExternalTrackParam::GetDZ(xv,yv,zv,GetBz(),dz);
61 }
62
63 Bool_t GetGlobalXYZat(Double_t r,Double_t &x,Double_t &y,Double_t &z) const;
8602c008 64 Bool_t GetPhiZat(Double_t r,Double_t &phi,Double_t &z) const;
6c94f330 65
006b5f7f 66 Int_t Compare(const TObject *o) const;
006b5f7f 67 Int_t GetClusterIndex(Int_t i) const {return fIndex[i];}
6c94f330 68 Bool_t Invariant() const;
ef7253ac 69
70 void SetExtraCluster(Int_t i, Int_t idx) {fIndex[kMaxLayer+i]=idx;}
71 Int_t GetExtraCluster(Int_t i) const {return fIndex[kMaxLayer+i];}
c84a5e9e 72
6c94f330 73protected:
74 Double_t GetBz() const ;
75 Double_t fdEdx; // dE/dx
8602c008 76
77 static const Int_t fgkWARN; //! used for debugging purposes
6c94f330 78 Float_t fdEdxSample[4]; // array of dE/dx samples b.b.
15dd636f 79
ef7253ac 80 Int_t fIndex[2*kMaxLayer]; // indices of associated clusters
15dd636f 81
ef7253ac 82 AliESDtrack *fESDtrack; //! pointer to the connected ESD track
006b5f7f 83
6c94f330 84private:
85 AliITStrackV2 &operator=(const AliITStrackV2 &tr);
8602c008 86 ClassDef(AliITStrackV2,7) //ITS reconstructed track
6c94f330 87};
a9a2d814 88
23efe5f1 89inline
90void AliITStrackV2::SetSampledEdx(Float_t q, Int_t i) {
91 //----------------------------------------------------------------------
a9a2d814 92 // This function stores dEdx sample corrected for the track segment length
93 // Origin: Boris Batyunya, JINR, Boris.Batiounia@cern.ch
23efe5f1 94 //----------------------------------------------------------------------
a9a2d814 95 if (i<0) return;
96 if (i>3) return;
23efe5f1 97 Double_t s=GetSnp(), t=GetTgl();
23efe5f1 98 q *= TMath::Sqrt((1-s*s)/(1+t*t));
99 fdEdxSample[i]=q;
23efe5f1 100}
c84a5e9e 101
006b5f7f 102#endif
103
104