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196471e9 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
ea94c18b | 16 | /* $Id$ */ |
17 | ||
27bf410b | 18 | /// \class AliMUONTracker |
e64fdf8a | 19 | /// |
20 | /// Steering class for use in global tracking framework; | |
27bf410b | 21 | /// reconstruct tracks from recpoints |
22 | /// | |
e64fdf8a | 23 | /// Actual tracking is performed by some AliMUONVTrackReconstructor children |
24 | /// | |
25 | /// \author Christian Finck and Laurent Aphecetche, SUBATECH Nantes | |
196471e9 | 26 | |
27 | #include "AliMUONTracker.h" | |
e64fdf8a | 28 | |
e64fdf8a | 29 | #include "AliMUONTrack.h" |
30 | #include "AliMUONTrackExtrap.h" | |
31 | #include "AliMUONTrackHitPattern.h" | |
32 | #include "AliMUONTrackParam.h" | |
196471e9 | 33 | #include "AliMUONTrackReconstructor.h" |
e64fdf8a | 34 | #include "AliMUONTrackReconstructorK.h" |
35 | #include "AliMUONTrackStoreV1.h" | |
8c0b5e70 | 36 | #include "AliMUONTriggerChamberEff.h" |
e64fdf8a | 37 | #include "AliMUONTriggerTrackStoreV1.h" |
38 | #include "AliMUONVClusterStore.h" | |
39 | #include "AliMUONVTriggerStore.h" | |
ea94c18b | 40 | |
41 | #include "AliESD.h" | |
42 | #include "AliESDMuonTrack.h" | |
43 | #include "AliESDVertex.h" | |
44 | #include "AliLoader.h" | |
45 | #include "AliLog.h" | |
46 | ||
e64fdf8a | 47 | #include <Riostream.h> |
48 | #include <TTree.h> | |
196471e9 | 49 | |
50 | //_____________________________________________________________________________ | |
e64fdf8a | 51 | AliMUONTracker::AliMUONTracker(AliLoader* loader, |
52 | const AliMUONDigitMaker* digitMaker, | |
53 | const AliMUONGeometryTransformer* transformer, | |
8c0b5e70 | 54 | const AliMUONTriggerCircuit* triggerCircuit, |
55 | AliMUONTriggerChamberEff* chamberEff) | |
e64fdf8a | 56 | : AliTracker(), |
57 | fLoader(loader), | |
58 | fDigitMaker(digitMaker), // not owner | |
59 | fTransformer(transformer), // not owner | |
60 | fTriggerCircuit(triggerCircuit), // not owner | |
8c0b5e70 | 61 | fTrigChamberEff(chamberEff), // not owner |
e64fdf8a | 62 | fTrackHitPatternMaker(0x0), |
63 | fTrackReco(0x0), | |
64 | fClusterStore(0x0), | |
65 | fTriggerStore(0x0) | |
196471e9 | 66 | { |
67 | /// constructor | |
e64fdf8a | 68 | if (fTransformer && fDigitMaker) |
69 | { | |
70 | fTrackHitPatternMaker = new AliMUONTrackHitPattern(*fTransformer,*fDigitMaker); | |
71 | } | |
196471e9 | 72 | } |
e64fdf8a | 73 | |
196471e9 | 74 | //_____________________________________________________________________________ |
75 | AliMUONTracker::~AliMUONTracker() | |
76 | { | |
e64fdf8a | 77 | /// dtor |
196471e9 | 78 | delete fTrackReco; |
e64fdf8a | 79 | delete fTrackHitPatternMaker; |
80 | delete fClusterStore; | |
81 | delete fTriggerStore; | |
196471e9 | 82 | } |
83 | ||
84 | //_____________________________________________________________________________ | |
e64fdf8a | 85 | Int_t |
86 | AliMUONTracker::LoadClusters(TTree* clustersTree) | |
196471e9 | 87 | { |
e64fdf8a | 88 | /// Load clusterStore and triggerStore from clustersTree |
89 | delete fClusterStore; | |
90 | delete fTriggerStore; | |
196471e9 | 91 | |
e64fdf8a | 92 | fClusterStore = AliMUONVClusterStore::Create(*clustersTree); |
93 | fTriggerStore = AliMUONVTriggerStore::Create(*clustersTree); | |
94 | ||
95 | if (!fClusterStore) | |
96 | { | |
97 | AliError("Could not get clusterStore"); | |
98 | return 1; | |
99 | } | |
100 | if (!fTriggerStore) | |
101 | { | |
102 | AliError("Could not get triggerStore"); | |
103 | return 2; | |
104 | } | |
105 | ||
106 | fClusterStore->Connect(*clustersTree,kFALSE); | |
107 | fTriggerStore->Connect(*clustersTree,kFALSE); | |
108 | ||
109 | clustersTree->GetEvent(0); | |
196471e9 | 110 | |
e64fdf8a | 111 | return 0; |
112 | } | |
196471e9 | 113 | |
e64fdf8a | 114 | //_____________________________________________________________________________ |
115 | Int_t | |
116 | AliMUONTracker::Clusters2Tracks(AliESD* esd) | |
117 | { | |
118 | /// Performs the tracking and store the resulting tracks in both | |
119 | /// the TreeT and the ESD | |
120 | ||
121 | Int_t rv(0); | |
122 | ||
123 | TTree* tracksTree = fLoader->TreeT(); | |
124 | ||
125 | if (!tracksTree) | |
126 | { | |
127 | AliError("Cannot get TreeT"); | |
128 | rv=1; | |
129 | } | |
130 | if (!fClusterStore) | |
131 | { | |
132 | AliError("ClusterStore is NULL"); | |
133 | rv=2; | |
134 | } | |
135 | if (!fTriggerStore) | |
136 | { | |
137 | AliError("TriggerStore is NULL"); | |
138 | rv=3; | |
139 | } | |
140 | if (!rv) | |
141 | { | |
142 | rv = Clusters2Tracks(*tracksTree,esd); | |
143 | } | |
144 | return rv; | |
145 | } | |
196471e9 | 146 | |
e64fdf8a | 147 | //_____________________________________________________________________________ |
148 | Int_t AliMUONTracker::Clusters2Tracks(TTree& tracksTree, AliESD* esd) | |
149 | { | |
150 | /// Performs the tracking | |
151 | ||
152 | AliDebug(1,""); | |
153 | ||
154 | AliMUONVTrackStore* trackStore(0x0); | |
155 | AliMUONVTriggerTrackStore* triggerTrackStore(0x0); | |
156 | ||
157 | // Make tracker tracks | |
158 | if ( fClusterStore ) | |
159 | { | |
160 | trackStore = new AliMUONTrackStoreV1; | |
161 | Bool_t alone = ( ( fTriggerStore && fTriggerCircuit ) ? kFALSE : kTRUE ); | |
162 | trackStore->Connect(tracksTree,alone); | |
163 | fTrackReco->EventReconstruct(*fClusterStore,*trackStore); | |
164 | } | |
165 | ||
166 | if ( fTriggerStore && fTriggerCircuit ) | |
167 | { | |
168 | // Make trigger tracks | |
169 | triggerTrackStore = new AliMUONTriggerTrackStoreV1; | |
170 | Bool_t alone = ( fClusterStore ? kFALSE : kTRUE ); | |
171 | triggerTrackStore->Connect(tracksTree,alone); | |
172 | fTrackReco->EventReconstructTrigger(*fTriggerCircuit,*fTriggerStore,*triggerTrackStore); | |
173 | } | |
174 | ||
175 | if ( trackStore && triggerTrackStore && fTriggerStore && fTrackHitPatternMaker ) | |
176 | { | |
177 | fTrackReco->ValidateTracksWithTrigger(*trackStore,*triggerTrackStore,*fTriggerStore,*fTrackHitPatternMaker); | |
178 | } | |
179 | ||
180 | // Fills output TreeT | |
181 | tracksTree.Fill(); | |
182 | ||
8c0b5e70 | 183 | if( trackStore && triggerTrackStore && fTriggerStore && fTrigChamberEff){ |
184 | fTrigChamberEff->EventChamberEff(*fTriggerStore,*triggerTrackStore,*trackStore); | |
8c0b5e70 | 185 | } |
186 | ||
e64fdf8a | 187 | FillESD(*trackStore,esd); |
188 | ||
189 | // cleanup | |
190 | delete trackStore; | |
191 | delete triggerTrackStore; | |
192 | ||
193 | return 0; | |
194 | } | |
196471e9 | 195 | |
e64fdf8a | 196 | //_____________________________________________________________________________ |
197 | void | |
198 | AliMUONTracker::FillESD(AliMUONVTrackStore& trackStore, AliESD* esd) const | |
199 | { | |
200 | /// Fill the ESD from the trackStore | |
201 | ||
202 | AliDebug(1,""); | |
203 | ||
204 | // Get vertex | |
205 | Double_t vertex[3] = {0}; | |
206 | const AliESDVertex* esdVert = esd->GetVertex(); | |
207 | if (esdVert->GetNContributors()) | |
208 | { | |
209 | esdVert->GetXYZ(vertex); | |
210 | AliDebug(1,Form("found vertex (%e,%e,%e)",vertex[0],vertex[1],vertex[2])); | |
211 | } | |
212 | ||
213 | // setting ESD MUON class | |
214 | AliESDMuonTrack esdTrack; | |
215 | ||
216 | AliMUONTrack* track; | |
217 | TIter next(trackStore.CreateIterator()); | |
218 | ||
219 | while ( ( track = static_cast<AliMUONTrack*>(next()) ) ) | |
220 | { | |
221 | AliMUONTrackParam* trackParam = static_cast<AliMUONTrackParam*>((track->GetTrackParamAtHit())->First()); | |
222 | AliMUONTrackParam trackParamAtVtx(*trackParam); | |
223 | ||
224 | /// Extrapolate to vertex (which is set to (0,0,0) if not available, see above) | |
225 | AliMUONTrackExtrap::ExtrapToVertex(&trackParamAtVtx, vertex[0],vertex[1],vertex[2]); | |
226 | ||
227 | // setting data member of ESD MUON | |
228 | ||
229 | // at first station | |
230 | esdTrack.SetInverseBendingMomentumUncorrected(trackParam->GetInverseBendingMomentum()); | |
231 | esdTrack.SetThetaXUncorrected(TMath::ATan(trackParam->GetNonBendingSlope())); | |
232 | esdTrack.SetThetaYUncorrected(TMath::ATan(trackParam->GetBendingSlope())); | |
233 | esdTrack.SetZUncorrected(trackParam->GetZ()); | |
234 | esdTrack.SetBendingCoorUncorrected(trackParam->GetBendingCoor()); | |
235 | esdTrack.SetNonBendingCoorUncorrected(trackParam->GetNonBendingCoor()); | |
236 | // at vertex | |
237 | esdTrack.SetInverseBendingMomentum(trackParamAtVtx.GetInverseBendingMomentum()); | |
238 | esdTrack.SetThetaX(TMath::ATan(trackParamAtVtx.GetNonBendingSlope())); | |
239 | esdTrack.SetThetaY(TMath::ATan(trackParamAtVtx.GetBendingSlope())); | |
240 | esdTrack.SetZ(trackParamAtVtx.GetZ()); | |
241 | esdTrack.SetBendingCoor(trackParamAtVtx.GetBendingCoor()); | |
242 | esdTrack.SetNonBendingCoor(trackParamAtVtx.GetNonBendingCoor()); | |
243 | // global info | |
244 | esdTrack.SetChi2(track->GetFitFMin()); | |
245 | esdTrack.SetNHit(track->GetNTrackHits()); | |
246 | esdTrack.SetLocalTrigger(track->GetLocalTrigger()); | |
247 | esdTrack.SetChi2MatchTrigger(track->GetChi2MatchTrigger()); | |
248 | esdTrack.SetHitsPatternInTrigCh(track->GetHitsPatternInTrigCh()); | |
249 | ||
250 | // storing ESD MUON Track into ESD Event | |
251 | esd->AddMuonTrack(&esdTrack); | |
252 | } // end of loop on tracks | |
196471e9 | 253 | } |
254 | ||
255 | //_____________________________________________________________________________ | |
e64fdf8a | 256 | void AliMUONTracker::SetOption(Option_t* option) |
196471e9 | 257 | { |
e64fdf8a | 258 | /// set reconstructor class |
259 | ||
260 | if (strstr(option,"Original")) | |
261 | { | |
262 | fTrackReco = new AliMUONTrackReconstructor; | |
263 | } | |
e64fdf8a | 264 | else |
265 | { | |
ea94c18b | 266 | fTrackReco = new AliMUONTrackReconstructorK(); |
e64fdf8a | 267 | } |
268 | } | |
196471e9 | 269 | |
e64fdf8a | 270 | //_____________________________________________________________________________ |
271 | void | |
272 | AliMUONTracker::UnloadClusters() | |
273 | { | |
274 | /// Delete internal clusterStore | |
275 | delete fClusterStore; | |
276 | fClusterStore = 0x0; | |
196471e9 | 277 | } |
e64fdf8a | 278 |