1 #ifndef ALITRDTRACKV1_H
2 #define ALITRDTRACKV1_H
3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
8 ///////////////////////////////////////////////////////////////////////////////
10 // Represents a reconstructed TRD track //
12 ///////////////////////////////////////////////////////////////////////////////
14 #ifndef ALIKALMANTRACK_H
15 #include "AliKalmanTrack.h"
19 #include "AliESDtrack.h"
22 #ifndef ALITRDSEEDV1_H
23 #include "AliTRDseedV1.h"
28 class AliTRDtrackV1 : public AliKalmanTrack
31 enum { kMAXCLUSTERSPERTRACK = 210 };
35 , kNplane = AliESDtrack::kTRDnPlanes
41 enum AliTRDPIDMethod {
46 AliTRDtrackV1(AliTRDseedV1 *trklts, const Double_t p[5], const Double_t cov[15], Double_t x, Double_t alpha);
47 AliTRDtrackV1(const AliESDtrack &ref);
48 AliTRDtrackV1(const AliTRDtrackV1 &ref);
49 virtual ~AliTRDtrackV1();
50 AliTRDtrackV1 &operator=(const AliTRDtrackV1 &ref) { *(new(this) AliTRDtrackV1(ref)); return *this; }
53 Bool_t CookLabel(Float_t wrong);
54 AliTRDtrackV1* GetBackupTrack() const {return fBackupTrack;}
55 Double_t GetBudget(Int_t i) const { return fBudget[i];}
56 Double_t GetC() const { return AliExternalTrackParam::GetC(GetBz());}
57 Int_t GetClusterIndex(Int_t id) const;
58 Float_t GetEdep() const {return fDE;}
59 inline Float_t GetMomentum(Int_t plane) const;
60 inline Int_t GetNCross();
61 inline Int_t GetNumberOfTracklets() const;
62 Double_t GetPIDsignal() const {return 0.;}
63 Double_t GetPID(Int_t is) const { return (is >=0 && is < AliPID::kSPECIES) ? fPID[is] : -1.;}
64 Double_t GetPredictedChi2(const AliTRDseedV1 *tracklet) const;
65 Double_t GetPredictedChi2(const AliCluster* /*c*/) const { return 0.0; }
66 Int_t GetProlongation(Double_t xk, Double_t &y, Double_t &z);
67 AliTRDseedV1* GetTracklet(Int_t plane) const {return plane >=0 && plane <kNplane ? fTracklet[plane] : 0x0;}
68 Int_t GetTrackletIndex(Int_t plane) const { return (plane>=0 && plane<kNplane) ? fTrackletIndex[plane] : -1;}
69 UShort_t* GetTrackletIndexes() {return &fTrackletIndex[0];}
71 Bool_t IsOwner() const {return TestBit(1);};
72 Bool_t IsStopped() const {return TestBit(2);};
74 void MakeBackupTrack();
75 Bool_t PropagateTo(Double_t xr, Double_t x0 = 8.72, Double_t rho = 5.86e-3);
76 Int_t PropagateToR(Double_t xr, Double_t step);
77 Bool_t Rotate(Double_t angle, Bool_t absolute = kFALSE);
78 void SetBudget(Int_t i, Double_t b) {if(i>=0 && i<3) fBudget[i] = b;}
79 void SetNumberOfClusters();
81 void SetStopped(Bool_t stop) {SetBit(2, stop);}
82 void SetTracklet(AliTRDseedV1 *trklt, Int_t index);
83 inline Float_t StatusForTOF();
84 Bool_t Update(AliTRDseedV1 *tracklet, Double_t chi2);
85 //Bool_t Update(const AliTRDcluster *c, Double_t chi2, Int_t index, Double_t h01){ return AliTRDtrack::Update(c,chi2,index,h01); };
86 Bool_t Update(const AliCluster *, Double_t, Int_t) { return kFALSE; };
87 void UpdateESDtrack(AliESDtrack *t);
90 Double_t GetBz() const;
93 UChar_t fPIDquality; // No of planes used for PID calculation
94 UShort_t fTrackletIndex[kNplane];// Tracklets index in the tracker list
95 Double32_t fPID[AliPID::kSPECIES];// PID probabilities
96 Double32_t fBudget[3]; // Integrated material budget
97 Double32_t fDE; // Integrated delta energy
98 AliTRDseedV1 *fTracklet[kNplane]; // Tracklets array defining the track
99 AliTRDtrackV1 *fBackupTrack; // Backup track
102 ClassDef(AliTRDtrackV1, 2) // new TRD track
105 //____________________________________________________
106 inline Float_t AliTRDtrackV1::GetMomentum(Int_t plane) const
108 return plane >=0 && plane < kNplane && fTrackletIndex[plane] != 0xff ? fTracklet[plane]->GetMomentum() : -1.;
111 //____________________________________________________
112 inline Int_t AliTRDtrackV1::GetNCross()
115 for(Int_t ip=0; ip<kNplane; ip++){
116 if(!fTracklet[ip]) continue;
117 ncross += fTracklet[ip]->IsRowCross();
122 //____________________________________________________
123 inline Int_t AliTRDtrackV1::GetNumberOfTracklets() const
126 for(Int_t ip=0; ip<kNplane; ip++){
127 if(!fTracklet[ip]) continue;
133 //____________________________________________________________________________
134 inline Float_t AliTRDtrackV1::StatusForTOF()
137 // Defines the status of the TOF extrapolation
140 if(!fTracklet[5]) return 0.;
142 // Definition of res ????
143 Float_t res = /*(0.2 + 0.8 * (fN / (fNExpected + 5.0))) **/ (0.4 + 0.6 * fTracklet[5]->GetN() / 20.0);
144 res *= (0.25 + 0.8 * 40.0 / (40.0 + fBudget[2]));