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"
18 #ifndef ALITRDSEEDV1_H
19 #include "AliTRDseedV1.h"
22 template <typename Value> class TVectorT;
23 typedef class TVectorT<Double_t> TVectorD;
26 class AliTRDReconstructor;
27 class AliTRDtrackV1 : public AliKalmanTrack
29 friend class AliHLTTRDTrack; // allow HLT special access
32 kNdet = AliTRDgeometry::kNdet
33 ,kNstacks = AliTRDgeometry::kNstack*AliTRDgeometry::kNsector
34 ,kNplane = AliTRDgeometry::kNlayer
35 ,kNcham = AliTRDgeometry::kNstack
36 ,kNsect = AliTRDgeometry::kNsector
39 ,kMAXCLUSTERSPERTRACK = 210
42 // bits from 0-13 are reserved by ROOT (see TObject.h)
43 enum ETRDtrackStatus {
48 ,kSeeder = BIT(18) // if set other than TPC (ITS, TRD)
51 // propagation/update error codes (up to 4 bits)
62 // data/clusters/tracklet error codes (up to 4 bits/layer)
74 AliTRDtrackV1(AliTRDseedV1 * const trklts, const Double_t p[5], const Double_t cov[15], Double_t x, Double_t alpha);
75 AliTRDtrackV1(const AliESDtrack &ref);
76 AliTRDtrackV1(const AliTRDtrackV1 &ref);
77 virtual ~AliTRDtrackV1();
78 AliTRDtrackV1 &operator=(const AliTRDtrackV1 &ref);
79 virtual void Copy(TObject &ref) const;
82 Double_t CookTruncatedMean(const Bool_t kinvq, const Double_t mag, const Int_t charge, const Int_t kcalib, Int_t &nch, Int_t &ncls, TVectorD *Qs=NULL, TVectorD *Xs=NULL, Int_t timeBin0=-1, Int_t timeBin1=1000, Int_t tstep=1) const;
84 Int_t CookLabel(Float_t wrong, Int_t *labs=NULL, Float_t *freq=NULL);
85 AliTRDtrackV1* GetBackupTrack() const {return fBackupTrack;}
86 Double_t GetBudget(Int_t i) const { return fBudget[i];}
87 AliTRDcluster* GetCluster(Int_t id);
88 Int_t GetClusterIndex(Int_t id) const;
89 Float_t GetEdep() const {return fDE;}
90 Int_t GetESDid() const {return fESDid;}
91 inline Float_t GetMomentum(Int_t plane=-1) const;
92 inline Int_t GetNCross();
93 inline Int_t GetNumberOfTracklets() const;
94 Double_t GetPIDsignal() const { return 0.;}
95 Double_t GetPID(Int_t is) const { return (is >=0 && is < AliPID::kSPECIES) ? fPID[is] : -1.;}
96 UChar_t GetNumberOfTrackletsPID() const;
97 Double_t GetPredictedChi2(const AliTRDseedV1 *tracklet, Double_t *cov) const;
98 Double_t GetPredictedChi2(const AliCluster* /*c*/) const { return 0.0; }
99 Int_t GetProlongation(Double_t xk, Double_t &y, Double_t &z) const;
100 inline UChar_t GetStatusTRD(Int_t ly=-1) const;
101 Int_t GetSector() const;
102 AliTRDseedV1* GetTracklet(Int_t plane) const {return plane >=0 && plane <kNplane ? fTracklet[plane] : NULL;}
103 Int_t GetTrackletIndex(Int_t plane) const { return (plane>=0 && plane<kNplane) ? fTrackletIndex[plane] : -1;}
104 AliExternalTrackParam*
105 GetTrackIn() const { return fTrackLow;}
106 AliExternalTrackParam*
107 GetTrackOut() const { return fTrackHigh;}
108 const Int_t* GetTrackletIndexes() const { return &fTrackletIndex[0];}
110 Bool_t IsEqual(const TObject *inTrack) const;
111 Bool_t IsKink() const { return TestBit(kKink);}
112 Bool_t IsOwner() const { return TestBit(kOwner);};
113 Bool_t IsPrimary() const { return TestBit(kPrimary);};
114 Bool_t IsStopped() const { return TestBit(kStopped);};
115 Bool_t IsElectron() const;
116 Bool_t IsTPCseeded() const { return !TestBit(kSeeder);};
117 inline static Bool_t IsTrackError(ETRDtrackError error, UInt_t status);
118 inline static Bool_t IsLayerError(ETRDlayerError error, Int_t layer, UInt_t status);
120 Int_t MakeBackupTrack();
121 void Print(Option_t *o="") const;
123 Bool_t PropagateTo(Double_t xr, Double_t x0 = 8.72, Double_t rho = 5.86e-3);
124 Int_t PropagateToR(Double_t xr, Double_t step);
125 Bool_t Rotate(Double_t angle, Bool_t absolute = kFALSE);
126 void SetBudget(Int_t i, Double_t b) {if(i>=0 && i<3) fBudget[i] = b;}
127 void SetEdep(Double32_t inDE){fDE = inDE;};
128 void SetESDid(Int_t id) {fESDid = id;}
129 void SetKink(Bool_t k) { SetBit(kKink, k);}
130 void SetPrimary(Bool_t k) { SetBit(kPrimary, k);}
131 void SetNonTPCseeded(Bool_t k){ SetBit(kSeeder, k);}
132 void SetNumberOfClusters();
134 void SetPID(Short_t is, Double_t inPID){if (is >=0 && is < AliPID::kSPECIES) fPID[is]=inPID;};
135 void SetPIDquality(UChar_t /*inPIDquality*/) const {/*fPIDquality = inPIDquality*/;};
136 inline void SetErrStat(UChar_t stat, Int_t ly=-1);
137 void SetStopped(Bool_t stop) {SetBit(kStopped, stop);}
138 void SetTracklet(AliTRDseedV1 *const trklt, Int_t index);
140 void SetTrackOut(const AliExternalTrackParam *op=NULL);
141 inline void SetReconstructor(const AliTRDReconstructor *rec);
142 inline Float_t StatusForTOF();
143 void UnsetTracklet(Int_t plane);
144 Bool_t Update(const AliCluster *, Double_t, Int_t) { return kFALSE; };
145 void UpdateChi2(Float_t chi2);
146 void UpdateESDtrack(AliESDtrack *t);
149 UInt_t fStatus; // Bit map for the status of propagation
150 Int_t fTrackletIndex[kNplane];// Tracklets index in the tracker list
151 Int_t fESDid; // ESD track id
152 Double32_t fPID[AliPID::kSPECIES]; // PID probabilities
153 Double32_t fBudget[3]; // Integrated material budget
154 Double32_t fDE; // Integrated delta energy
155 Double32_t fTruncatedMean; // Truncated mean
156 Int_t fNchamberdEdx; // number of chambers used in calculating truncated mean
157 Int_t fNclusterdEdx; // number of clusters used in calculating truncated mean
159 const AliTRDReconstructor *fkReconstructor;//! reconstructor link
160 AliTRDtrackV1 *fBackupTrack; //! Backup track
161 AliTRDseedV1 *fTracklet[kNplane]; // Tracklets array defining the track
162 AliExternalTrackParam *fTrackLow; // parameters of the track which enter TRD from below (TPC)
163 AliExternalTrackParam *fTrackHigh; // parameters of the track which enter TRD from above (HMPID, PHOS)
165 ClassDef(AliTRDtrackV1, 7) // TRD track - tracklet based
168 //____________________________________________________
169 inline Float_t AliTRDtrackV1::GetMomentum(Int_t plane) const
171 // Return ESD momentum stored in the tracklet reconstructed in layer = "plane".
172 // By default returns the ESD momentum in first tracklet attached to track
174 for(Int_t i(0); i<kNplane; i++){
175 if(fTracklet[i]) return fTracklet[i]->GetMomentum();
177 } else if( plane >=0 && plane < kNplane){
178 if(fTracklet[plane]) return fTracklet[plane]->GetMomentum();
183 //____________________________________________________
184 inline Int_t AliTRDtrackV1::GetNCross()
187 for(Int_t ip=0; ip<kNplane; ip++){
188 if(!fTracklet[ip]) continue;
189 ncross += fTracklet[ip]->IsRowCross();
194 //____________________________________________________
195 inline Int_t AliTRDtrackV1::GetNumberOfTracklets() const
198 for(Int_t ip=0; ip<kNplane; ip++){
199 if(!fTracklet[ip]) continue;
205 //____________________________________________________
206 inline UChar_t AliTRDtrackV1::GetStatusTRD(Int_t ly) const
208 if(ly>=-1 && ly<kNplane) return (fStatus>>((ly+1)*4))&0xf;
212 //____________________________________________________
213 inline Bool_t AliTRDtrackV1::IsTrackError(ETRDtrackError error, UInt_t status)
215 return (status&0xf)==UChar_t(error);
218 //____________________________________________________
219 inline Bool_t AliTRDtrackV1::IsLayerError(ETRDlayerError error, Int_t ly, UInt_t status)
221 if(ly>=kNplane || ly<0) return kFALSE;
222 return ((status>>((ly+1)*4))&0xf) == UChar_t(error);
225 //____________________________________________________
226 inline void AliTRDtrackV1::SetReconstructor(const AliTRDReconstructor *rec)
228 for(Int_t ip=0; ip<kNplane; ip++){
229 if(!fTracklet[ip]) continue;
230 fTracklet[ip]->SetReconstructor(rec);
232 fkReconstructor = rec;
235 //____________________________________________________
236 inline void AliTRDtrackV1::SetErrStat(UChar_t status, Int_t ly)
238 if(ly<kNplane) fStatus|=((status&0xf)<<((ly+1)*4));
243 //____________________________________________________________________________
244 inline Float_t AliTRDtrackV1::StatusForTOF()
247 // Defines the status of the TOF extrapolation
250 if(!fTracklet[5]) return 0.;
252 // Definition of res ????
253 Float_t res = /*(0.2 + 0.8 * (fN / (fNExpected + 5.0))) **/ (0.4 + 0.6 * fTracklet[5]->GetN() / 20.0);
254 res *= (0.25 + 0.8 * 40.0 / (40.0 + fBudget[2]));