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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 | ||
8 | /////////////////////////////////////////////////////////////////////////////// | |
9 | // // | |
10 | // Represents a reconstructed TRD track // | |
11 | // // | |
12 | /////////////////////////////////////////////////////////////////////////////// | |
13 | ||
14 | #ifndef ALIKALMANTRACK_H | |
15 | #include "AliKalmanTrack.h" | |
16 | #endif | |
17 | ||
18 | #ifndef ALITRDSEEDV1_H | |
19 | #include "AliTRDseedV1.h" | |
20 | #endif | |
21 | ||
22 | class AliESDtrack; | |
23 | class AliTRDcluster; | |
24 | class AliTRDReconstructor; | |
25 | class AliTRDtrackV1 : public AliKalmanTrack | |
26 | { | |
27 | friend class AliHLTTRDTrack; // allow HLT special access | |
28 | public: | |
29 | enum ETRDtrackSize { | |
30 | kNdet = AliTRDgeometry::kNdet | |
31 | ,kNstacks = AliTRDgeometry::kNstack*AliTRDgeometry::kNsector | |
32 | ,kNplane = AliTRDgeometry::kNlayer | |
33 | ,kNcham = AliTRDgeometry::kNstack | |
34 | ,kNsect = AliTRDgeometry::kNsector | |
35 | ,kNslice = 3 | |
36 | ,kNMLPslice = 8 | |
37 | ,kMAXCLUSTERSPERTRACK = 210 | |
38 | }; | |
39 | ||
40 | // bits from 0-13 are reserved by ROOT (see TObject.h) | |
41 | enum ETRDtrackStatus { | |
42 | kOwner = BIT(14) | |
43 | ,kStopped = BIT(15) | |
44 | ,kKink = BIT(16) | |
45 | ,kPrimary = BIT(17) | |
46 | }; | |
47 | ||
48 | // propagation/update error codes (up to 4 bits) | |
49 | enum ETRDtrackError { | |
50 | kProlongation = 1 | |
51 | ,kPropagation | |
52 | ,kAdjustSector | |
53 | ,kSnp | |
54 | ,kTrackletInit | |
55 | ,kUpdate | |
56 | ,kUnknown = 0xff | |
57 | }; | |
58 | ||
59 | // data/clusters/tracklet error codes (up to 4 bits/layer) | |
60 | enum ETRDlayerError { | |
61 | kGeometry = 1 | |
62 | ,kBoundary | |
63 | ,kNoClusters | |
64 | ,kNoAttach | |
65 | ,kNoClustersTracklet | |
66 | ,kNoFit | |
67 | ,kChi2 | |
68 | }; | |
69 | ||
70 | AliTRDtrackV1(); | |
71 | AliTRDtrackV1(AliTRDseedV1 * const trklts, const Double_t p[5], const Double_t cov[15], Double_t x, Double_t alpha); | |
72 | AliTRDtrackV1(const AliESDtrack &ref); | |
73 | AliTRDtrackV1(const AliTRDtrackV1 &ref); | |
74 | virtual ~AliTRDtrackV1(); | |
75 | AliTRDtrackV1 &operator=(const AliTRDtrackV1 &ref); | |
76 | virtual void Copy(TObject &ref) const; | |
77 | ||
78 | Bool_t CookPID(); | |
79 | Bool_t CookLabel(Float_t wrong); | |
80 | AliTRDtrackV1* GetBackupTrack() const {return fBackupTrack;} | |
81 | Double_t GetBudget(Int_t i) const { return fBudget[i];} | |
82 | AliTRDcluster* GetCluster(Int_t id); | |
83 | Int_t GetClusterIndex(Int_t id) const; | |
84 | Float_t GetEdep() const {return fDE;} | |
85 | Int_t GetESDid() const {return fESDid;} | |
86 | inline Float_t GetMomentum(Int_t plane=-1) const; | |
87 | inline Int_t GetNCross(); | |
88 | inline Int_t GetNumberOfTracklets() const; | |
89 | Double_t GetPIDsignal() const { return 0.;} | |
90 | Double_t GetPID(Int_t is) const { return (is >=0 && is < AliPID::kSPECIES) ? fPID[is] : -1.;} | |
91 | UChar_t GetNumberOfTrackletsPID() const; | |
92 | Double_t GetPredictedChi2(const AliTRDseedV1 *tracklet, Double_t *cov) const; | |
93 | Double_t GetPredictedChi2(const AliCluster* /*c*/) const { return 0.0; } | |
94 | Int_t GetProlongation(Double_t xk, Double_t &y, Double_t &z) const; | |
95 | inline UChar_t GetStatusTRD(Int_t ly=-1) const; | |
96 | Int_t GetSector() const; | |
97 | AliTRDseedV1* GetTracklet(Int_t plane) const {return plane >=0 && plane <kNplane ? fTracklet[plane] : NULL;} | |
98 | Int_t GetTrackletIndex(Int_t plane) const { return (plane>=0 && plane<kNplane) ? fTrackletIndex[plane] : -1;} | |
99 | AliExternalTrackParam* | |
100 | GetTrackIn() const { return fTrackLow;} | |
101 | AliExternalTrackParam* | |
102 | GetTrackOut() const { return fTrackHigh;} | |
103 | const Int_t* GetTrackletIndexes() const { return &fTrackletIndex[0];} | |
104 | ||
105 | Bool_t IsEqual(const TObject *inTrack) const; | |
106 | Bool_t IsKink() const { return TestBit(kKink);} | |
107 | Bool_t IsOwner() const { return TestBit(kOwner);}; | |
108 | Bool_t IsPrimary() const { return TestBit(kPrimary);}; | |
109 | Bool_t IsStopped() const { return TestBit(kStopped);}; | |
110 | Bool_t IsElectron() const; | |
111 | inline static Bool_t IsTrackError(ETRDtrackError error, UInt_t status); | |
112 | inline static Bool_t IsLayerError(ETRDlayerError error, Int_t layer, UInt_t status); | |
113 | ||
114 | Int_t MakeBackupTrack(); | |
115 | void Print(Option_t *o="") const; | |
116 | ||
117 | Bool_t PropagateTo(Double_t xr, Double_t x0 = 8.72, Double_t rho = 5.86e-3); | |
118 | Int_t PropagateToR(Double_t xr, Double_t step); | |
119 | Bool_t Rotate(Double_t angle, Bool_t absolute = kFALSE); | |
120 | void SetBudget(Int_t i, Double_t b) {if(i>=0 && i<3) fBudget[i] = b;} | |
121 | void SetEdep(Double32_t inDE){fDE = inDE;}; | |
122 | void SetESDid(Int_t id) {fESDid = id;} | |
123 | void SetKink(Bool_t k) { SetBit(kKink, k);} | |
124 | void SetPrimary(Bool_t k) { SetBit(kPrimary, k);} | |
125 | void SetNumberOfClusters(); | |
126 | UChar_t SetNumberOfTrackletsPID(Bool_t recalc); | |
127 | void SetOwner(); | |
128 | void SetPID(Short_t is, Double_t inPID){if (is >=0 && is < AliPID::kSPECIES) fPID[is]=inPID;}; | |
129 | void SetPIDquality(UChar_t /*inPIDquality*/) const {/*fPIDquality = inPIDquality*/;}; | |
130 | inline void SetStatus(UChar_t stat, Int_t ly=-1); | |
131 | void SetStopped(Bool_t stop) {SetBit(kStopped, stop);} | |
132 | void SetTracklet(AliTRDseedV1 *const trklt, Int_t index); | |
133 | void SetTrackIn(); | |
134 | void SetTrackOut(const AliExternalTrackParam *op=NULL); | |
135 | inline void SetReconstructor(const AliTRDReconstructor *rec); | |
136 | inline Float_t StatusForTOF(); | |
137 | void UnsetTracklet(Int_t plane); | |
138 | Bool_t Update(const AliCluster *, Double_t, Int_t) { return kFALSE; }; | |
139 | void UpdateChi2(Float_t chi2); | |
140 | void UpdateESDtrack(AliESDtrack *t); | |
141 | ||
142 | private: | |
143 | UInt_t fStatus; // Bit map for the status of propagation | |
144 | Int_t fTrackletIndex[kNplane];// Tracklets index in the tracker list | |
145 | Int_t fESDid; // ESD track id | |
146 | Double32_t fPID[AliPID::kSPECIES]; // PID probabilities | |
147 | Double32_t fBudget[3]; // Integrated material budget | |
148 | Double32_t fDE; // Integrated delta energy | |
149 | const AliTRDReconstructor *fkReconstructor;//! reconstructor link | |
150 | AliTRDtrackV1 *fBackupTrack; //! Backup track | |
151 | AliTRDseedV1 *fTracklet[kNplane]; // Tracklets array defining the track | |
152 | AliExternalTrackParam *fTrackLow; // parameters of the track which enter TRD from below (TPC) | |
153 | AliExternalTrackParam *fTrackHigh; // parameters of the track which enter TRD from above (HMPID, PHOS) | |
154 | ||
155 | ClassDef(AliTRDtrackV1, 7) // TRD track - tracklet based | |
156 | }; | |
157 | ||
158 | //____________________________________________________ | |
159 | inline Float_t AliTRDtrackV1::GetMomentum(Int_t plane) const | |
160 | { | |
161 | // Return ESD momentum stored in the tracklet reconstructed in layer = "plane". | |
162 | // By default returns the ESD momentum in first tracklet attached to track | |
163 | if(plane==-1){ | |
164 | for(Int_t i(0); i<kNplane; i++){ | |
165 | if(fTracklet[i]) return fTracklet[i]->GetMomentum(); | |
166 | } | |
167 | } else if( plane >=0 && plane < kNplane){ | |
168 | if(fTracklet[plane]) return fTracklet[plane]->GetMomentum(); | |
169 | } | |
170 | return -1.; | |
171 | } | |
172 | ||
173 | //____________________________________________________ | |
174 | inline Int_t AliTRDtrackV1::GetNCross() | |
175 | { | |
176 | Int_t ncross = 0; | |
177 | for(Int_t ip=0; ip<kNplane; ip++){ | |
178 | if(!fTracklet[ip]) continue; | |
179 | ncross += fTracklet[ip]->IsRowCross(); | |
180 | } | |
181 | return ncross; | |
182 | } | |
183 | ||
184 | //____________________________________________________ | |
185 | inline Int_t AliTRDtrackV1::GetNumberOfTracklets() const | |
186 | { | |
187 | Int_t n = 0; | |
188 | for(Int_t ip=0; ip<kNplane; ip++){ | |
189 | if(!fTracklet[ip]) continue; | |
190 | n++; | |
191 | } | |
192 | return n; | |
193 | } | |
194 | ||
195 | //____________________________________________________ | |
196 | inline UChar_t AliTRDtrackV1::GetStatusTRD(Int_t ly) const | |
197 | { | |
198 | if(ly>=-1 && ly<kNplane) return (fStatus>>((ly+1)*4))&0xf; | |
199 | return kUnknown; | |
200 | } | |
201 | ||
202 | //____________________________________________________ | |
203 | inline Bool_t AliTRDtrackV1::IsTrackError(ETRDtrackError error, UInt_t status) | |
204 | { | |
205 | return (status&0xf)==UChar_t(error); | |
206 | } | |
207 | ||
208 | //____________________________________________________ | |
209 | inline Bool_t AliTRDtrackV1::IsLayerError(ETRDlayerError error, Int_t ly, UInt_t status) | |
210 | { | |
211 | if(ly>=kNplane || ly<0) return kFALSE; | |
212 | return ((status>>((ly+1)*4))&0xf) == UChar_t(error); | |
213 | } | |
214 | ||
215 | //____________________________________________________ | |
216 | inline void AliTRDtrackV1::SetReconstructor(const AliTRDReconstructor *rec) | |
217 | { | |
218 | for(Int_t ip=0; ip<kNplane; ip++){ | |
219 | if(!fTracklet[ip]) continue; | |
220 | fTracklet[ip]->SetReconstructor(rec); | |
221 | } | |
222 | fkReconstructor = rec; | |
223 | } | |
224 | ||
225 | //____________________________________________________ | |
226 | inline void AliTRDtrackV1::SetStatus(UChar_t status, Int_t ly) | |
227 | { | |
228 | if(ly<kNplane) fStatus|=((status&0xf)<<((ly+1)*4)); | |
229 | return; | |
230 | } | |
231 | ||
232 | ||
233 | //____________________________________________________________________________ | |
234 | inline Float_t AliTRDtrackV1::StatusForTOF() | |
235 | { | |
236 | // OBSOLETE | |
237 | // Defines the status of the TOF extrapolation | |
238 | // | |
239 | ||
240 | if(!fTracklet[5]) return 0.; | |
241 | ||
242 | // Definition of res ???? | |
243 | Float_t res = /*(0.2 + 0.8 * (fN / (fNExpected + 5.0))) **/ (0.4 + 0.6 * fTracklet[5]->GetN() / 20.0); | |
244 | res *= (0.25 + 0.8 * 40.0 / (40.0 + fBudget[2])); | |
245 | return res; | |
246 | } | |
247 | ||
248 | #endif | |
249 | ||
250 | ||
251 |