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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 | ||
ee8a8d65 | 18 | //----------------------------------------------------------------------------- |
27bf410b | 19 | /// \class AliMUONTracker |
e64fdf8a | 20 | /// |
21 | /// Steering class for use in global tracking framework; | |
27bf410b | 22 | /// reconstruct tracks from recpoints |
23 | /// | |
e64fdf8a | 24 | /// Actual tracking is performed by some AliMUONVTrackReconstructor children |
96ebe67e | 25 | /// Tracking modes (ORIGINAL, KALMAN) and associated options and parameters |
26 | /// can be changed by using: | |
27 | /// AliMUONRecoParam *muonRecoParam = AliMUONRecoParam::GetLow(High)FluxParam(); | |
28 | /// muonRecoParam->Set...(); // see methods in AliMUONRecoParam.h for details | |
29 | /// AliMUONReconstructor::SetRecoParam(muonRecoParam); | |
e64fdf8a | 30 | /// |
31 | /// \author Christian Finck and Laurent Aphecetche, SUBATECH Nantes | |
ee8a8d65 | 32 | //----------------------------------------------------------------------------- |
196471e9 | 33 | |
34 | #include "AliMUONTracker.h" | |
e64fdf8a | 35 | |
9bf6860b | 36 | #include "AliCodeTimer.h" |
37 | #include "AliESDEvent.h" | |
38 | #include "AliESDMuonTrack.h" | |
39 | #include "AliESDVertex.h" | |
40 | #include "AliLog.h" | |
41 | #include "AliMUONClusterStoreV2.h" | |
42 | #include "AliMUONESDInterface.h" | |
43 | #include "AliMUONLegacyClusterServer.h" | |
3304fa09 | 44 | #include "AliMUONRecoParam.h" |
9bf6860b | 45 | #include "AliMUONReconstructor.h" |
e64fdf8a | 46 | #include "AliMUONTrack.h" |
47 | #include "AliMUONTrackExtrap.h" | |
48 | #include "AliMUONTrackHitPattern.h" | |
49 | #include "AliMUONTrackParam.h" | |
196471e9 | 50 | #include "AliMUONTrackReconstructor.h" |
e64fdf8a | 51 | #include "AliMUONTrackReconstructorK.h" |
52 | #include "AliMUONTrackStoreV1.h" | |
53 | #include "AliMUONTriggerTrackStoreV1.h" | |
94e2086e | 54 | #include "AliMUONTriggerTrack.h" |
55 | #include "AliMUONLocalTrigger.h" | |
9bf6860b | 56 | #include "AliMUONVCluster.h" |
57 | #include "AliMUONVClusterServer.h" | |
58 | #include "AliMUONVDigitStore.h" | |
e64fdf8a | 59 | #include "AliMUONVTriggerStore.h" |
60 | #include <Riostream.h> | |
89b4e052 | 61 | #include <TRandom.h> |
9bf6860b | 62 | #include <TTree.h> |
196471e9 | 63 | |
ee8a8d65 | 64 | /// \cond CLASSIMP |
65 | ClassImp(AliMUONTracker) | |
66 | /// \endcond | |
67 | ||
68 | ||
196471e9 | 69 | //_____________________________________________________________________________ |
9bf6860b | 70 | AliMUONTracker::AliMUONTracker(AliMUONVClusterServer* clusterServer, |
71 | const AliMUONVDigitStore& digitStore, | |
1fef78c8 | 72 | const AliMUONDigitMaker* digitMaker, |
e64fdf8a | 73 | const AliMUONGeometryTransformer* transformer, |
683cb6c5 | 74 | const AliMUONTriggerCircuit* triggerCircuit) |
e64fdf8a | 75 | : AliTracker(), |
e64fdf8a | 76 | fDigitMaker(digitMaker), // not owner |
77 | fTransformer(transformer), // not owner | |
78 | fTriggerCircuit(triggerCircuit), // not owner | |
79 | fTrackHitPatternMaker(0x0), | |
80 | fTrackReco(0x0), | |
81 | fClusterStore(0x0), | |
1fef78c8 | 82 | fTriggerStore(0x0), |
9bf6860b | 83 | fClusterServer(clusterServer), |
84 | fIsOwnerOfClusterServer(kFALSE), | |
85 | fDigitStore(digitStore), // not owner | |
86 | fInputClusterStore(0x0), | |
87 | fTriggerTrackStore(0x0) | |
196471e9 | 88 | { |
89 | /// constructor | |
e64fdf8a | 90 | if (fTransformer && fDigitMaker) |
e64fdf8a | 91 | fTrackHitPatternMaker = new AliMUONTrackHitPattern(*fTransformer,*fDigitMaker); |
89b4e052 | 92 | |
9bf6860b | 93 | if (!fClusterServer) |
94 | { | |
95 | AliInfo("No cluster server given. Will use AliMUONLegacyClusterServer"); | |
96 | fIsOwnerOfClusterServer = kTRUE; | |
97 | } | |
98 | else | |
99 | { | |
100 | TIter next(fDigitStore.CreateIterator()); | |
101 | fClusterServer->UseDigits(next); | |
102 | ||
103 | SetupClusterServer(*fClusterServer); | |
104 | } | |
196471e9 | 105 | } |
e64fdf8a | 106 | |
196471e9 | 107 | //_____________________________________________________________________________ |
108 | AliMUONTracker::~AliMUONTracker() | |
109 | { | |
e64fdf8a | 110 | /// dtor |
196471e9 | 111 | delete fTrackReco; |
e64fdf8a | 112 | delete fTrackHitPatternMaker; |
113 | delete fClusterStore; | |
114 | delete fTriggerStore; | |
9bf6860b | 115 | if ( fIsOwnerOfClusterServer ) delete fClusterServer; |
116 | delete fInputClusterStore; | |
117 | delete fTriggerTrackStore; | |
196471e9 | 118 | } |
119 | ||
1fef78c8 | 120 | //_____________________________________________________________________________ |
121 | AliMUONVClusterStore* | |
122 | AliMUONTracker::ClusterStore() const | |
123 | { | |
124 | /// Return (and create if necessary) the cluster container | |
125 | if (!fClusterStore) | |
126 | { | |
127 | fClusterStore = new AliMUONClusterStoreV2; | |
128 | } | |
129 | return fClusterStore; | |
130 | } | |
131 | ||
9bf6860b | 132 | //_____________________________________________________________________________ |
133 | AliMUONVTriggerTrackStore* | |
134 | AliMUONTracker::TriggerTrackStore() const | |
135 | { | |
136 | /// Return (and create if necessary) the trigger track container | |
137 | if (!fTriggerTrackStore) | |
138 | { | |
139 | fTriggerTrackStore = new AliMUONTriggerTrackStoreV1; | |
140 | } | |
141 | return fTriggerTrackStore; | |
142 | } | |
143 | ||
196471e9 | 144 | //_____________________________________________________________________________ |
3304fa09 | 145 | Int_t AliMUONTracker::LoadClusters(TTree* clustersTree) |
196471e9 | 146 | { |
1fef78c8 | 147 | /// Load triggerStore from clustersTree |
148 | ||
e64fdf8a | 149 | delete fTriggerStore; |
9bf6860b | 150 | delete fInputClusterStore; |
151 | fInputClusterStore=0x0; | |
196471e9 | 152 | |
6cfc11c3 | 153 | if ( ! clustersTree ) { |
154 | AliFatal("No clustersTree"); | |
155 | return 1; | |
156 | } | |
157 | ||
e64fdf8a | 158 | fTriggerStore = AliMUONVTriggerStore::Create(*clustersTree); |
159 | ||
e64fdf8a | 160 | if (!fTriggerStore) |
161 | { | |
162 | AliError("Could not get triggerStore"); | |
163 | return 2; | |
164 | } | |
165 | ||
9bf6860b | 166 | if ( fIsOwnerOfClusterServer ) |
167 | { | |
168 | fInputClusterStore = AliMUONVClusterStore::Create(*clustersTree); | |
169 | if ( fInputClusterStore ) | |
170 | { | |
171 | AliInfo(Form("Created %s from cluster tree",fInputClusterStore->ClassName())); | |
172 | fInputClusterStore->Clear(); | |
173 | fInputClusterStore->Connect(*clustersTree,kFALSE); | |
174 | } | |
175 | delete fClusterServer; | |
176 | fClusterServer = new AliMUONLegacyClusterServer(*fTransformer,fInputClusterStore); | |
177 | SetupClusterServer(*fClusterServer); | |
178 | } | |
179 | ||
e64fdf8a | 180 | fTriggerStore->Connect(*clustersTree,kFALSE); |
181 | ||
182 | clustersTree->GetEvent(0); | |
196471e9 | 183 | |
e64fdf8a | 184 | return 0; |
185 | } | |
196471e9 | 186 | |
e64fdf8a | 187 | //_____________________________________________________________________________ |
3304fa09 | 188 | Int_t AliMUONTracker::Clusters2Tracks(AliESDEvent* esd) |
e64fdf8a | 189 | { |
3304fa09 | 190 | /// Performs the tracking and store the resulting tracks in the ESD |
191 | AliDebug(1,""); | |
192 | AliCodeTimerAuto("") | |
e64fdf8a | 193 | |
9bf6860b | 194 | if (!fTrackReco) |
195 | { | |
196 | fTrackReco = CreateTrackReconstructor(AliMUONReconstructor::GetRecoParam()->GetTrackingMode(),fClusterServer); | |
197 | } | |
3304fa09 | 198 | |
199 | // if the required tracking mode does not exist | |
200 | if (!fTrackReco) return 1; | |
201 | ||
1fef78c8 | 202 | if ( ! ClusterStore() ) |
203 | { | |
e64fdf8a | 204 | AliError("ClusterStore is NULL"); |
6cfc11c3 | 205 | return 2; |
e64fdf8a | 206 | } |
6cfc11c3 | 207 | |
3304fa09 | 208 | if (!fTriggerStore) { |
e64fdf8a | 209 | AliError("TriggerStore is NULL"); |
6cfc11c3 | 210 | return 3; |
e64fdf8a | 211 | } |
1fef78c8 | 212 | |
9bf6860b | 213 | // Make trigger tracks |
214 | if ( fTriggerCircuit ) | |
215 | { | |
216 | TriggerTrackStore()->Clear(); | |
217 | fTrackReco->EventReconstructTrigger(*fTriggerCircuit,*fTriggerStore,*(TriggerTrackStore())); | |
218 | } | |
219 | ||
d7820279 | 220 | if ( AliMUONReconstructor::GetRecoParam()->BypassSt45() && TriggerTrackStore()->GetSize() > 5 ) |
221 | { | |
222 | // Hard cut to reject shower events | |
223 | ||
224 | AliCodeTimerAuto("MUON Shower events"); | |
225 | ||
226 | AliWarning(Form("Probably got a shower event (%d trigger tracks). Will not reconstruct tracks.", | |
227 | TriggerTrackStore()->GetSize())); | |
228 | ||
229 | return 0; | |
230 | } | |
231 | ||
e64fdf8a | 232 | // Make tracker tracks |
3304fa09 | 233 | AliMUONVTrackStore* trackStore = new AliMUONTrackStoreV1; |
1fef78c8 | 234 | fTrackReco->EventReconstruct(*(ClusterStore()),*trackStore); |
e64fdf8a | 235 | |
3304fa09 | 236 | // Match tracker/trigger tracks |
9bf6860b | 237 | if ( fTrackHitPatternMaker ) |
238 | { | |
239 | fTrackReco->ValidateTracksWithTrigger(*trackStore,*(TriggerTrackStore()),*fTriggerStore,*fTrackHitPatternMaker); | |
e64fdf8a | 240 | } |
241 | ||
3304fa09 | 242 | // Fill ESD |
e64fdf8a | 243 | FillESD(*trackStore,esd); |
244 | ||
245 | // cleanup | |
246 | delete trackStore; | |
e64fdf8a | 247 | |
248 | return 0; | |
249 | } | |
196471e9 | 250 | |
e64fdf8a | 251 | //_____________________________________________________________________________ |
3304fa09 | 252 | void AliMUONTracker::FillESD(AliMUONVTrackStore& trackStore, AliESDEvent* esd) const |
e64fdf8a | 253 | { |
254 | /// Fill the ESD from the trackStore | |
e64fdf8a | 255 | AliDebug(1,""); |
2060b217 | 256 | AliCodeTimerAuto("") |
e64fdf8a | 257 | |
103e6575 | 258 | AliMUONTrack* track; |
259 | AliESDMuonTrack esdTrack; | |
260 | Double_t vertex[3] = {0., 0., 0.}; | |
261 | TIter next(trackStore.CreateIterator()); | |
89b4e052 | 262 | |
103e6575 | 263 | // get ITS vertex |
e64fdf8a | 264 | const AliESDVertex* esdVert = esd->GetVertex(); |
103e6575 | 265 | if (esdVert->GetNContributors()) { |
e64fdf8a | 266 | esdVert->GetXYZ(vertex); |
267 | AliDebug(1,Form("found vertex (%e,%e,%e)",vertex[0],vertex[1],vertex[2])); | |
268 | } | |
269 | ||
103e6575 | 270 | // fill ESD event including all info in ESD cluster if required and only for the given fraction of events |
271 | if (AliMUONReconstructor::GetRecoParam()->SaveFullClusterInESD() && | |
272 | gRandom->Uniform(100.) <= AliMUONReconstructor::GetRecoParam()->GetPercentOfFullClusterInESD()) { | |
e64fdf8a | 273 | |
103e6575 | 274 | while ( ( track = static_cast<AliMUONTrack*>(next()) ) ) { |
275 | AliMUONESDInterface::MUONToESD(*track, esdTrack, vertex, &fDigitStore); | |
94e2086e | 276 | // set the trigger x/y strips pattern |
277 | if (esdTrack.GetMatchTrigger()) { | |
278 | AliMUONLocalTrigger* locTrg = static_cast<AliMUONLocalTrigger*>(fTriggerStore->FindLocal(esdTrack.LoCircuit())); | |
279 | esdTrack.SetTriggerX1Pattern(locTrg->GetX1Pattern()); | |
280 | esdTrack.SetTriggerY1Pattern(locTrg->GetY1Pattern()); | |
281 | esdTrack.SetTriggerX2Pattern(locTrg->GetX2Pattern()); | |
282 | esdTrack.SetTriggerY2Pattern(locTrg->GetY2Pattern()); | |
283 | esdTrack.SetTriggerX3Pattern(locTrg->GetX3Pattern()); | |
284 | esdTrack.SetTriggerY3Pattern(locTrg->GetY3Pattern()); | |
285 | esdTrack.SetTriggerX4Pattern(locTrg->GetX4Pattern()); | |
286 | esdTrack.SetTriggerY4Pattern(locTrg->GetY4Pattern()); | |
287 | } | |
103e6575 | 288 | esd->AddMuonTrack(&esdTrack); |
289 | } | |
89b4e052 | 290 | |
103e6575 | 291 | } else { |
89b4e052 | 292 | |
103e6575 | 293 | while ( ( track = static_cast<AliMUONTrack*>(next()) ) ) { |
294 | AliMUONESDInterface::MUONToESD(*track, esdTrack, vertex); | |
94e2086e | 295 | // set the trigger x/y strips pattern |
296 | if (esdTrack.GetMatchTrigger()) { | |
297 | AliMUONLocalTrigger* locTrg = static_cast<AliMUONLocalTrigger*>(fTriggerStore->FindLocal(esdTrack.LoCircuit())); | |
298 | esdTrack.SetTriggerX1Pattern(locTrg->GetX1Pattern()); | |
299 | esdTrack.SetTriggerY1Pattern(locTrg->GetY1Pattern()); | |
300 | esdTrack.SetTriggerX2Pattern(locTrg->GetX2Pattern()); | |
301 | esdTrack.SetTriggerY2Pattern(locTrg->GetY2Pattern()); | |
302 | esdTrack.SetTriggerX3Pattern(locTrg->GetX3Pattern()); | |
303 | esdTrack.SetTriggerY3Pattern(locTrg->GetY3Pattern()); | |
304 | esdTrack.SetTriggerX4Pattern(locTrg->GetX4Pattern()); | |
305 | esdTrack.SetTriggerY4Pattern(locTrg->GetY4Pattern()); | |
306 | } | |
103e6575 | 307 | esd->AddMuonTrack(&esdTrack); |
60765b06 | 308 | } |
e64fdf8a | 309 | |
103e6575 | 310 | } |
94e2086e | 311 | |
312 | // fill the local trigger decisions not matched with tracks | |
313 | // associate them to "ghost" tracks | |
314 | ||
315 | Int_t loTrgNum(-1); | |
316 | Bool_t matched = kFALSE; | |
317 | ||
318 | AliMUONTriggerTrack *triggerTrack; | |
319 | AliMUONTrack muonTrack; | |
320 | AliESDMuonTrack esdGhostTrack; | |
321 | TIter itTriggerTrack(fTriggerTrackStore->CreateIterator()); | |
322 | while ( ( triggerTrack = static_cast<AliMUONTriggerTrack*>(itTriggerTrack() ) | |
323 | ) ) | |
324 | { | |
325 | loTrgNum = triggerTrack->GetLoTrgNum(); | |
326 | AliMUONLocalTrigger* locTrg = static_cast<AliMUONLocalTrigger*>(fTriggerStore->FindLocal(loTrgNum)); | |
327 | ||
328 | /* verify if this local trigger has been already matched */ | |
329 | TIter itTrack(trackStore.CreateIterator()); | |
330 | while ( ( track = static_cast<AliMUONTrack*>(itTrack()) ) ) | |
331 | { | |
332 | if (matched = (track->LoCircuit() == locTrg->LoCircuit())) break; | |
333 | } | |
334 | if (matched) continue; | |
335 | ||
336 | muonTrack.SetLocalTrigger(locTrg->LoCircuit(), | |
337 | locTrg->LoStripX(), | |
338 | locTrg->LoStripY(), | |
339 | locTrg->LoDev(), | |
340 | locTrg->LoLpt(), | |
341 | locTrg->LoHpt()); | |
342 | ||
343 | /* make the AliESDMuonTrack from the "track" object */ | |
344 | ||
345 | esdGhostTrack.SetLocalTrigger(muonTrack.GetLocalTrigger()); | |
346 | // set the transverse momentum of this track to "zero" | |
347 | esdGhostTrack.SetInverseBendingMomentum(1.E+10); | |
348 | esdGhostTrack.SetInverseBendingMomentumAtDCA(1.E+10); | |
349 | esdGhostTrack.SetInverseBendingMomentumUncorrected(1.E+10); | |
350 | // set the trigger x/y strips pattern | |
351 | esdGhostTrack.SetTriggerX1Pattern(locTrg->GetX1Pattern()); | |
352 | esdGhostTrack.SetTriggerY1Pattern(locTrg->GetY1Pattern()); | |
353 | esdGhostTrack.SetTriggerX2Pattern(locTrg->GetX2Pattern()); | |
354 | esdGhostTrack.SetTriggerY2Pattern(locTrg->GetY2Pattern()); | |
355 | esdGhostTrack.SetTriggerX3Pattern(locTrg->GetX3Pattern()); | |
356 | esdGhostTrack.SetTriggerY3Pattern(locTrg->GetY3Pattern()); | |
357 | esdGhostTrack.SetTriggerX4Pattern(locTrg->GetX4Pattern()); | |
358 | esdGhostTrack.SetTriggerY4Pattern(locTrg->GetY4Pattern()); | |
359 | esd->AddMuonTrack(&esdGhostTrack); | |
360 | ||
361 | } | |
103e6575 | 362 | |
196471e9 | 363 | } |
364 | ||
365 | //_____________________________________________________________________________ | |
9bf6860b | 366 | AliMUONVTrackReconstructor* AliMUONTracker::CreateTrackReconstructor(const char* trackingMode, AliMUONVClusterServer* clusterServer) |
196471e9 | 367 | { |
3304fa09 | 368 | /// Create track reconstructor, depending on tracking mode set in RecoParam |
369 | ||
9bf6860b | 370 | AliMUONVTrackReconstructor* trackReco(0x0); |
371 | ||
372 | TString opt(trackingMode); | |
3304fa09 | 373 | opt.ToUpper(); |
e64fdf8a | 374 | |
3304fa09 | 375 | if (strstr(opt,"ORIGINAL")) |
e64fdf8a | 376 | { |
9bf6860b | 377 | trackReco = new AliMUONTrackReconstructor(*clusterServer); |
e64fdf8a | 378 | } |
3304fa09 | 379 | else if (strstr(opt,"KALMAN")) |
e64fdf8a | 380 | { |
9bf6860b | 381 | trackReco = new AliMUONTrackReconstructorK(*clusterServer); |
e64fdf8a | 382 | } |
3304fa09 | 383 | else |
384 | { | |
9bf6860b | 385 | AliErrorClass(Form("tracking mode \"%s\" does not exist",opt.Data())); |
386 | return 0x0; | |
3304fa09 | 387 | } |
388 | ||
9bf6860b | 389 | AliInfoClass(Form("Will use %s for tracking",trackReco->ClassName())); |
390 | ||
391 | return trackReco; | |
e64fdf8a | 392 | } |
196471e9 | 393 | |
e64fdf8a | 394 | //_____________________________________________________________________________ |
3304fa09 | 395 | void AliMUONTracker::UnloadClusters() |
e64fdf8a | 396 | { |
1fef78c8 | 397 | /// Clear internal clusterStore |
398 | ||
9bf6860b | 399 | delete fInputClusterStore; |
400 | fInputClusterStore = 0x0; | |
196471e9 | 401 | } |
9bf6860b | 402 | |
403 | ||
404 | //_____________________________________________________________________________ | |
405 | void | |
406 | AliMUONTracker::SetupClusterServer(AliMUONVClusterServer& clusterServer) | |
407 | { | |
408 | /// Setup the cluster server | |
409 | ||
410 | if ( AliMUONReconstructor::GetRecoParam()->BypassSt45() ) | |
411 | { | |
412 | Bool_t ok = clusterServer.UseTriggerTrackStore(TriggerTrackStore()); | |
413 | ||
414 | if ( ok ) | |
415 | ||
416 | { | |
417 | AliWarning("WILL USE TRIGGER TRACKS TO GENERATE CLUSTERS IN STATIONS 4 AND 5, THUS BYPASSING REAL CLUSTERS IN THOSE TWO STATIONS !!!"); | |
418 | } | |
419 | else | |
420 | { | |
421 | AliWarning("BYPASSING OF ST45 REQUESTED, BUT CLUSTERSERVER DOES NOT SEEM TO SUPPORT IT !!!"); | |
422 | } | |
423 | } | |
424 | } | |
425 | ||
426 |