Bug fix (F. Prino)
[u/mrichter/AliRoot.git] / TRD / AliTRDtrackV1.h
CommitLineData
d9950a5a 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 */
5
6/* $Id$ */
7
0906e73e 8///////////////////////////////////////////////////////////////////////////////
9// //
10// Represents a reconstructed TRD track //
11// //
12///////////////////////////////////////////////////////////////////////////////
d9950a5a 13
3b57a3f7 14#ifndef ALIKALMANTRACK_H
15#include "AliKalmanTrack.h"
d9950a5a 16#endif
17
3b57a3f7 18#ifndef ALIESDTRACK_H
19#include "AliESDtrack.h"
20#endif
21
22#ifndef ALITRDSEEDV1_H
23#include "AliTRDseedV1.h"
24#endif
d9950a5a 25
3b57a3f7 26class AliTRDcluster;
27class AliESDtrack;
181c7f7e 28class AliTRDReconstructor;
3b57a3f7 29class AliTRDtrackV1 : public AliKalmanTrack
d9950a5a 30{
3b57a3f7 31public:
32 enum { kMAXCLUSTERSPERTRACK = 210 };
33
34 enum { kNdet = 540
35 , kNstacks = 90
36 , kNplane = AliESDtrack::kTRDnPlanes
37 , kNcham = 5
38 , kNsect = 18
39 , kNslice = 3
40 , kNMLPslice = 8 };
41
2e2915e7 42 // bits from 0-13 are reserved by ROOT (see TObject.h)
e44586fb 43 enum AliTRDtrackStatus {
2e2915e7 44 kOwner = BIT(14)
45 , kStopped = BIT(15)
e44586fb 46 };
0906e73e 47
3b57a3f7 48 AliTRDtrackV1();
49 AliTRDtrackV1(AliTRDseedV1 *trklts, const Double_t p[5], const Double_t cov[15], Double_t x, Double_t alpha);
50 AliTRDtrackV1(const AliESDtrack &ref);
51 AliTRDtrackV1(const AliTRDtrackV1 &ref);
52 virtual ~AliTRDtrackV1();
53 AliTRDtrackV1 &operator=(const AliTRDtrackV1 &ref) { *(new(this) AliTRDtrackV1(ref)); return *this; }
54
55 Bool_t CookPID();
56 Bool_t CookLabel(Float_t wrong);
57 AliTRDtrackV1* GetBackupTrack() const {return fBackupTrack;}
58 Double_t GetBudget(Int_t i) const { return fBudget[i];}
59 Double_t GetC() const { return AliExternalTrackParam::GetC(GetBz());}
60 Int_t GetClusterIndex(Int_t id) const;
61 Float_t GetEdep() const {return fDE;}
62 inline Float_t GetMomentum(Int_t plane) const;
63 inline Int_t GetNCross();
82180ec1 64 inline Int_t GetNumberOfTracklets() const;
3b57a3f7 65 Double_t GetPIDsignal() const {return 0.;}
66 Double_t GetPID(Int_t is) const { return (is >=0 && is < AliPID::kSPECIES) ? fPID[is] : -1.;}
67 Double_t GetPredictedChi2(const AliTRDseedV1 *tracklet) const;
68 Double_t GetPredictedChi2(const AliCluster* /*c*/) const { return 0.0; }
69 Int_t GetProlongation(Double_t xk, Double_t &y, Double_t &z);
70 AliTRDseedV1* GetTracklet(Int_t plane) const {return plane >=0 && plane <kNplane ? fTracklet[plane] : 0x0;}
71 Int_t GetTrackletIndex(Int_t plane) const { return (plane>=0 && plane<kNplane) ? fTrackletIndex[plane] : -1;}
72 UShort_t* GetTrackletIndexes() {return &fTrackletIndex[0];}
73
e44586fb 74 Bool_t IsOwner() const {return TestBit(kOwner);};
75 Bool_t IsStopped() const {return TestBit(kStopped);};
3b57a3f7 76
87a7fa94 77 void MakeBackupTrack();
3b57a3f7 78 Bool_t PropagateTo(Double_t xr, Double_t x0 = 8.72, Double_t rho = 5.86e-3);
79 Int_t PropagateToR(Double_t xr, Double_t step);
80 Bool_t Rotate(Double_t angle, Bool_t absolute = kFALSE);
81 void SetBudget(Int_t i, Double_t b) {if(i>=0 && i<3) fBudget[i] = b;}
82 void SetNumberOfClusters();
83 void SetOwner();
e44586fb 84 void SetStopped(Bool_t stop) {SetBit(kStopped, stop);}
3b57a3f7 85 void SetTracklet(AliTRDseedV1 *trklt, Int_t index);
181c7f7e 86 inline void SetReconstructor(const AliTRDReconstructor *rec);
3b57a3f7 87 inline Float_t StatusForTOF();
88 Bool_t Update(AliTRDseedV1 *tracklet, Double_t chi2);
89 //Bool_t Update(const AliTRDcluster *c, Double_t chi2, Int_t index, Double_t h01){ return AliTRDtrack::Update(c,chi2,index,h01); };
90 Bool_t Update(const AliCluster *, Double_t, Int_t) { return kFALSE; };
91 void UpdateESDtrack(AliESDtrack *t);
92
93protected:
94 Double_t GetBz() const;
95
96private:
97 UChar_t fPIDquality; // No of planes used for PID calculation
98 UShort_t fTrackletIndex[kNplane];// Tracklets index in the tracker list
99 Double32_t fPID[AliPID::kSPECIES];// PID probabilities
100 Double32_t fBudget[3]; // Integrated material budget
101 Double32_t fDE; // Integrated delta energy
102 AliTRDseedV1 *fTracklet[kNplane]; // Tracklets array defining the track
103 AliTRDtrackV1 *fBackupTrack; // Backup track
d9950a5a 104
0906e73e 105
3b57a3f7 106 ClassDef(AliTRDtrackV1, 2) // new TRD track
d9950a5a 107};
108
3b57a3f7 109//____________________________________________________
110inline Float_t AliTRDtrackV1::GetMomentum(Int_t plane) const
111{
112 return plane >=0 && plane < kNplane && fTrackletIndex[plane] != 0xff ? fTracklet[plane]->GetMomentum() : -1.;
113}
114
115//____________________________________________________
116inline Int_t AliTRDtrackV1::GetNCross()
117{
118 Int_t ncross = 0;
119 for(Int_t ip=0; ip<kNplane; ip++){
120 if(!fTracklet[ip]) continue;
121 ncross += fTracklet[ip]->IsRowCross();
122 }
123 return ncross;
124}
125
82180ec1 126//____________________________________________________
127inline Int_t AliTRDtrackV1::GetNumberOfTracklets() const
128{
129 Int_t n = 0;
130 for(Int_t ip=0; ip<kNplane; ip++){
131 if(!fTracklet[ip]) continue;
132 n++;
133 }
134 return n;
135}
136
181c7f7e 137
138//____________________________________________________
139inline void AliTRDtrackV1::SetReconstructor(const AliTRDReconstructor *rec)
140{
141 for(Int_t ip=0; ip<kNplane; ip++){
142 if(!fTracklet[ip]) continue;
143 fTracklet[ip]->SetReconstructor(rec);
144 }
145}
146
147
3b57a3f7 148//____________________________________________________________________________
149inline Float_t AliTRDtrackV1::StatusForTOF()
150{
151 //
152 // Defines the status of the TOF extrapolation
153 //
154
155 if(!fTracklet[5]) return 0.;
156
157 // Definition of res ????
158 Float_t res = /*(0.2 + 0.8 * (fN / (fNExpected + 5.0))) **/ (0.4 + 0.6 * fTracklet[5]->GetN() / 20.0);
159 res *= (0.25 + 0.8 * 40.0 / (40.0 + fBudget[2]));
160 return res;
161}
d9950a5a 162
163#endif
164
165
6e49cfdb 166