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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 |
ad3c6eda | 25 | /// Tracking modes (ORIGINAL, KALMAN) and associated options and parameters can be changed |
26 | /// through the AliMUONRecoParam object set in the reconstruction macro or read from the CDB | |
27 | /// (see methods in AliMUONRecoParam.h file for details) | |
e64fdf8a | 28 | /// |
29 | /// \author Christian Finck and Laurent Aphecetche, SUBATECH Nantes | |
ee8a8d65 | 30 | //----------------------------------------------------------------------------- |
196471e9 | 31 | |
32 | #include "AliMUONTracker.h" | |
e64fdf8a | 33 | |
9bf6860b | 34 | #include "AliCodeTimer.h" |
35 | #include "AliESDEvent.h" | |
36 | #include "AliESDMuonTrack.h" | |
37 | #include "AliESDVertex.h" | |
38 | #include "AliLog.h" | |
39 | #include "AliMUONClusterStoreV2.h" | |
40 | #include "AliMUONESDInterface.h" | |
41 | #include "AliMUONLegacyClusterServer.h" | |
3304fa09 | 42 | #include "AliMUONRecoParam.h" |
9bf6860b | 43 | #include "AliMUONReconstructor.h" |
e64fdf8a | 44 | #include "AliMUONTrack.h" |
45 | #include "AliMUONTrackExtrap.h" | |
46 | #include "AliMUONTrackHitPattern.h" | |
47 | #include "AliMUONTrackParam.h" | |
196471e9 | 48 | #include "AliMUONTrackReconstructor.h" |
e64fdf8a | 49 | #include "AliMUONTrackReconstructorK.h" |
50 | #include "AliMUONTrackStoreV1.h" | |
51 | #include "AliMUONTriggerTrackStoreV1.h" | |
94e2086e | 52 | #include "AliMUONTriggerTrack.h" |
53 | #include "AliMUONLocalTrigger.h" | |
9bf6860b | 54 | #include "AliMUONVClusterServer.h" |
55 | #include "AliMUONVDigitStore.h" | |
e64fdf8a | 56 | #include "AliMUONVTriggerStore.h" |
d5315275 | 57 | #include "AliMUONTriggerUtilities.h" |
e64fdf8a | 58 | #include <Riostream.h> |
89b4e052 | 59 | #include <TRandom.h> |
9bf6860b | 60 | #include <TTree.h> |
cfeca9e2 | 61 | #include "AliLog.h" |
196471e9 | 62 | |
ee8a8d65 | 63 | /// \cond CLASSIMP |
64 | ClassImp(AliMUONTracker) | |
65 | /// \endcond | |
66 | ||
67 | ||
196471e9 | 68 | //_____________________________________________________________________________ |
a0dc65b4 | 69 | AliMUONTracker::AliMUONTracker(const AliMUONRecoParam* recoParam, |
70 | AliMUONVClusterServer* clusterServer, | |
2e2d0c44 | 71 | AliMUONVDigitStore& digitStore, |
e64fdf8a | 72 | const AliMUONGeometryTransformer* transformer, |
d5315275 | 73 | const AliMUONTriggerCircuit* triggerCircuit, |
74 | const AliMUONTriggerUtilities* triggerUtilities) | |
e64fdf8a | 75 | : AliTracker(), |
72dae9ff | 76 | fkTransformer(transformer), // not owner |
77 | fkTriggerCircuit(triggerCircuit), // not owner | |
a0dc65b4 | 78 | fTrackHitPatternMaker(0x0), |
79 | fTrackReco(0x0), | |
80 | fClusterStore(0x0), | |
81 | fTriggerStore(0x0), | |
82 | fClusterServer(clusterServer), | |
83 | fIsOwnerOfClusterServer(kFALSE), | |
72dae9ff | 84 | fkDigitStore(digitStore), // not owner |
a0dc65b4 | 85 | fInputClusterStore(0x0), |
86 | fTriggerTrackStore(0x0), | |
cfeca9e2 | 87 | fkRecoParam(recoParam), |
88 | fInternalTrackStore(0x0) | |
196471e9 | 89 | { |
90 | /// constructor | |
cfeca9e2 | 91 | |
64f628e9 | 92 | if (fkTransformer) |
d5315275 | 93 | fTrackHitPatternMaker = new AliMUONTrackHitPattern(recoParam,*fkTransformer,fkDigitStore,triggerUtilities); |
89b4e052 | 94 | |
9bf6860b | 95 | if (!fClusterServer) |
96 | { | |
da448a15 | 97 | AliDebug(1,"No cluster server given. Will use AliMUONLegacyClusterServer"); |
9bf6860b | 98 | fIsOwnerOfClusterServer = kTRUE; |
99 | } | |
100 | else | |
101 | { | |
72dae9ff | 102 | TIter next(fkDigitStore.CreateIterator()); |
2e2d0c44 | 103 | fClusterServer->UseDigits(next,&digitStore); |
9bf6860b | 104 | |
105 | SetupClusterServer(*fClusterServer); | |
106 | } | |
196471e9 | 107 | } |
e64fdf8a | 108 | |
196471e9 | 109 | //_____________________________________________________________________________ |
110 | AliMUONTracker::~AliMUONTracker() | |
111 | { | |
e64fdf8a | 112 | /// dtor |
cfeca9e2 | 113 | |
196471e9 | 114 | delete fTrackReco; |
e64fdf8a | 115 | delete fTrackHitPatternMaker; |
116 | delete fClusterStore; | |
117 | delete fTriggerStore; | |
9bf6860b | 118 | if ( fIsOwnerOfClusterServer ) delete fClusterServer; |
119 | delete fInputClusterStore; | |
120 | delete fTriggerTrackStore; | |
cfeca9e2 | 121 | delete fInternalTrackStore; |
196471e9 | 122 | } |
123 | ||
1fef78c8 | 124 | //_____________________________________________________________________________ |
125 | AliMUONVClusterStore* | |
126 | AliMUONTracker::ClusterStore() const | |
127 | { | |
128 | /// Return (and create if necessary) the cluster container | |
129 | if (!fClusterStore) | |
130 | { | |
131 | fClusterStore = new AliMUONClusterStoreV2; | |
132 | } | |
133 | return fClusterStore; | |
134 | } | |
135 | ||
9bf6860b | 136 | //_____________________________________________________________________________ |
137 | AliMUONVTriggerTrackStore* | |
138 | AliMUONTracker::TriggerTrackStore() const | |
139 | { | |
140 | /// Return (and create if necessary) the trigger track container | |
141 | if (!fTriggerTrackStore) | |
142 | { | |
143 | fTriggerTrackStore = new AliMUONTriggerTrackStoreV1; | |
144 | } | |
145 | return fTriggerTrackStore; | |
146 | } | |
147 | ||
196471e9 | 148 | //_____________________________________________________________________________ |
3304fa09 | 149 | Int_t AliMUONTracker::LoadClusters(TTree* clustersTree) |
196471e9 | 150 | { |
1fef78c8 | 151 | /// Load triggerStore from clustersTree |
152 | ||
6cfc11c3 | 153 | if ( ! clustersTree ) { |
154 | AliFatal("No clustersTree"); | |
155 | return 1; | |
156 | } | |
157 | ||
cfeca9e2 | 158 | if ( !fTriggerStore ) |
159 | { | |
160 | fTriggerStore = AliMUONVTriggerStore::Create(*clustersTree); | |
161 | } | |
e64fdf8a | 162 | |
e64fdf8a | 163 | if (!fTriggerStore) |
164 | { | |
165 | AliError("Could not get triggerStore"); | |
166 | return 2; | |
167 | } | |
168 | ||
cfeca9e2 | 169 | if (!fInputClusterStore) |
9bf6860b | 170 | { |
171 | fInputClusterStore = AliMUONVClusterStore::Create(*clustersTree); | |
cfeca9e2 | 172 | if (!fInputClusterStore) |
9bf6860b | 173 | { |
cfeca9e2 | 174 | AliError("Could not get clusterStore"); |
175 | return 3; | |
9bf6860b | 176 | } |
cfeca9e2 | 177 | AliDebug(1,Form("Created %s from cluster tree",fInputClusterStore->ClassName())); |
178 | } | |
179 | ||
180 | if ( !fClusterServer && fIsOwnerOfClusterServer ) | |
181 | { | |
182 | if ( !fClusterServer ) | |
183 | { | |
184 | fClusterServer = new AliMUONLegacyClusterServer(*fkTransformer,fInputClusterStore, | |
185 | GetRecoParam()->BypassSt4(), | |
186 | GetRecoParam()->BypassSt5()); | |
187 | SetupClusterServer(*fClusterServer); | |
188 | } | |
189 | ||
9bf6860b | 190 | } |
191 | ||
cfeca9e2 | 192 | fInputClusterStore->Clear(); |
193 | fInputClusterStore->Connect(*clustersTree,kFALSE); | |
194 | fTriggerStore->Clear(); | |
e64fdf8a | 195 | fTriggerStore->Connect(*clustersTree,kFALSE); |
196 | ||
197 | clustersTree->GetEvent(0); | |
196471e9 | 198 | |
e64fdf8a | 199 | return 0; |
200 | } | |
196471e9 | 201 | |
e64fdf8a | 202 | //_____________________________________________________________________________ |
3304fa09 | 203 | Int_t AliMUONTracker::Clusters2Tracks(AliESDEvent* esd) |
e64fdf8a | 204 | { |
3304fa09 | 205 | /// Performs the tracking and store the resulting tracks in the ESD |
cfeca9e2 | 206 | /// |
207 | /// note that we're dealing with two cluster stores here : fInputClusterStore | |
208 | /// and ClusterStore(). | |
209 | /// The first one is read from the TreeR and may be used by the cluster server | |
210 | /// (that's the case for the legacy cluster server) to fill the other one. | |
211 | /// The second one is more dynamic and might be created on the fly by the cluster | |
212 | /// server (used by the combined tracking, in which case the first one is not used | |
213 | /// at all). | |
214 | ||
99c136e1 | 215 | AliCodeTimerAuto("",0) |
e64fdf8a | 216 | |
9bf6860b | 217 | if (!fTrackReco) |
218 | { | |
852fefb4 | 219 | fTrackReco = CreateTrackReconstructor(GetRecoParam(),fClusterServer,fkTransformer); |
cfeca9e2 | 220 | fInternalTrackStore = new AliMUONTrackStoreV1; |
9bf6860b | 221 | } |
3304fa09 | 222 | |
223 | // if the required tracking mode does not exist | |
224 | if (!fTrackReco) return 1; | |
225 | ||
1fef78c8 | 226 | if ( ! ClusterStore() ) |
227 | { | |
e64fdf8a | 228 | AliError("ClusterStore is NULL"); |
6cfc11c3 | 229 | return 2; |
e64fdf8a | 230 | } |
6cfc11c3 | 231 | |
3304fa09 | 232 | if (!fTriggerStore) { |
e64fdf8a | 233 | AliError("TriggerStore is NULL"); |
6cfc11c3 | 234 | return 3; |
e64fdf8a | 235 | } |
1fef78c8 | 236 | |
9bf6860b | 237 | // Make trigger tracks |
72dae9ff | 238 | if ( fkTriggerCircuit ) |
9bf6860b | 239 | { |
240 | TriggerTrackStore()->Clear(); | |
72dae9ff | 241 | fTrackReco->EventReconstructTrigger(*fkTriggerCircuit,*fTriggerStore,*(TriggerTrackStore())); |
9bf6860b | 242 | } |
243 | ||
89c8d66d | 244 | if ( TriggerTrackStore()->GetSize() > GetRecoParam()->GetMaxTriggerTracks() ) |
d7820279 | 245 | { |
89c8d66d | 246 | // cut to reject shower events |
d7820279 | 247 | |
dd0be8a7 | 248 | AliCodeTimerAuto("MUON Shower events",1); |
d7820279 | 249 | |
250 | AliWarning(Form("Probably got a shower event (%d trigger tracks). Will not reconstruct tracks.", | |
251 | TriggerTrackStore()->GetSize())); | |
252 | ||
253 | return 0; | |
254 | } | |
255 | ||
cfeca9e2 | 256 | fTrackReco->EventReconstruct(*(ClusterStore()),*fInternalTrackStore); |
e64fdf8a | 257 | |
3304fa09 | 258 | // Match tracker/trigger tracks |
9bf6860b | 259 | if ( fTrackHitPatternMaker ) |
260 | { | |
cfeca9e2 | 261 | fTrackReco->ValidateTracksWithTrigger(*fInternalTrackStore,*(TriggerTrackStore()),*fTriggerStore,*fTrackHitPatternMaker); |
e64fdf8a | 262 | } |
263 | ||
3304fa09 | 264 | // Fill ESD |
cfeca9e2 | 265 | FillESD(*fInternalTrackStore,esd); |
e64fdf8a | 266 | |
cfeca9e2 | 267 | fInternalTrackStore->Clear(); |
268 | ClusterStore()->Clear(); | |
e64fdf8a | 269 | |
270 | return 0; | |
271 | } | |
196471e9 | 272 | |
e64fdf8a | 273 | //_____________________________________________________________________________ |
72dae9ff | 274 | void AliMUONTracker::FillESD(const AliMUONVTrackStore& trackStore, AliESDEvent* esd) const |
e64fdf8a | 275 | { |
276 | /// Fill the ESD from the trackStore | |
e64fdf8a | 277 | AliDebug(1,""); |
99c136e1 | 278 | AliCodeTimerAuto("",0) |
e64fdf8a | 279 | |
103e6575 | 280 | // get ITS vertex |
b1fea02e | 281 | Double_t vertex[3] = {0., 0., 0.}; |
e64fdf8a | 282 | const AliESDVertex* esdVert = esd->GetVertex(); |
5ff135e6 | 283 | if (esdVert->GetNContributors() > 0 || !strcmp(esdVert->GetTitle(),"vertexer: smearMC")) { |
e64fdf8a | 284 | esdVert->GetXYZ(vertex); |
285 | AliDebug(1,Form("found vertex (%e,%e,%e)",vertex[0],vertex[1],vertex[2])); | |
286 | } | |
287 | ||
103e6575 | 288 | // fill ESD event including all info in ESD cluster if required and only for the given fraction of events |
b1fea02e | 289 | AliMUONTrack* track; |
290 | AliMUONLocalTrigger* locTrg; | |
b1fea02e | 291 | TIter next(trackStore.CreateIterator()); |
a0dc65b4 | 292 | if (GetRecoParam()->SaveFullClusterInESD() && |
293 | gRandom->Uniform(100.) <= GetRecoParam()->GetPercentOfFullClusterInESD()) { | |
e64fdf8a | 294 | |
103e6575 | 295 | while ( ( track = static_cast<AliMUONTrack*>(next()) ) ) { |
b1fea02e | 296 | |
297 | if (track->GetMatchTrigger() > 0) { | |
298 | locTrg = static_cast<AliMUONLocalTrigger*>(fTriggerStore->FindLocal(track->LoCircuit())); | |
fe0324de | 299 | AliMUONESDInterface::MUONToESD(*track, *esd, vertex, &fkDigitStore, locTrg); |
300 | } else AliMUONESDInterface::MUONToESD(*track, *esd, vertex, &fkDigitStore); | |
b1fea02e | 301 | |
103e6575 | 302 | } |
89b4e052 | 303 | |
103e6575 | 304 | } else { |
89b4e052 | 305 | |
103e6575 | 306 | while ( ( track = static_cast<AliMUONTrack*>(next()) ) ) { |
b1fea02e | 307 | |
308 | if (track->GetMatchTrigger() > 0) { | |
309 | locTrg = static_cast<AliMUONLocalTrigger*>(fTriggerStore->FindLocal(track->LoCircuit())); | |
fe0324de | 310 | AliMUONESDInterface::MUONToESD(*track, *esd, vertex, 0x0, locTrg); |
311 | } else AliMUONESDInterface::MUONToESD(*track, *esd, vertex); | |
b1fea02e | 312 | |
60765b06 | 313 | } |
e64fdf8a | 314 | |
103e6575 | 315 | } |
b1fea02e | 316 | |
317 | // fill the local trigger decisions not matched with tracks (associate them to "ghost" tracks) | |
318 | UInt_t ghostId = 0xFFFFFFFF - 1; | |
94e2086e | 319 | Bool_t matched = kFALSE; |
94e2086e | 320 | AliMUONTriggerTrack *triggerTrack; |
94e2086e | 321 | TIter itTriggerTrack(fTriggerTrackStore->CreateIterator()); |
b1fea02e | 322 | while ( ( triggerTrack = static_cast<AliMUONTriggerTrack*>(itTriggerTrack()) ) ) { |
323 | ||
324 | locTrg = static_cast<AliMUONLocalTrigger*>(fTriggerStore->FindLocal(triggerTrack->GetLoTrgNum())); | |
325 | ||
326 | // check if this local trigger has already been matched | |
327 | TIter itTrack(trackStore.CreateIterator()); | |
328 | while ( ( track = static_cast<AliMUONTrack*>(itTrack()) ) ) { | |
329 | matched = (track->LoCircuit() == locTrg->LoCircuit()); | |
330 | if (matched) break; | |
94e2086e | 331 | } |
b1fea02e | 332 | if (matched) continue; |
54355f2c | 333 | |
fe0324de | 334 | AliMUONESDInterface::MUONToESD(*locTrg, *esd, ghostId, triggerTrack); |
b1fea02e | 335 | |
b1fea02e | 336 | ghostId -= 1; |
337 | } | |
103e6575 | 338 | |
196471e9 | 339 | } |
340 | ||
341 | //_____________________________________________________________________________ | |
852fefb4 | 342 | AliMUONVTrackReconstructor* AliMUONTracker::CreateTrackReconstructor(const AliMUONRecoParam* recoParam, |
343 | AliMUONVClusterServer* clusterServer, | |
344 | const AliMUONGeometryTransformer* transformer) | |
196471e9 | 345 | { |
3304fa09 | 346 | /// Create track reconstructor, depending on tracking mode set in RecoParam |
347 | ||
9bf6860b | 348 | AliMUONVTrackReconstructor* trackReco(0x0); |
349 | ||
a0dc65b4 | 350 | TString opt(recoParam->GetTrackingMode()); |
3304fa09 | 351 | opt.ToUpper(); |
e64fdf8a | 352 | |
3304fa09 | 353 | if (strstr(opt,"ORIGINAL")) |
e64fdf8a | 354 | { |
852fefb4 | 355 | trackReco = new AliMUONTrackReconstructor(recoParam,clusterServer,transformer); |
e64fdf8a | 356 | } |
3304fa09 | 357 | else if (strstr(opt,"KALMAN")) |
e64fdf8a | 358 | { |
852fefb4 | 359 | trackReco = new AliMUONTrackReconstructorK(recoParam,clusterServer,transformer); |
e64fdf8a | 360 | } |
3304fa09 | 361 | else |
362 | { | |
9bf6860b | 363 | AliErrorClass(Form("tracking mode \"%s\" does not exist",opt.Data())); |
364 | return 0x0; | |
3304fa09 | 365 | } |
366 | ||
da448a15 | 367 | AliDebugClass(1,Form("Will use %s for tracking",trackReco->ClassName())); |
9bf6860b | 368 | |
369 | return trackReco; | |
e64fdf8a | 370 | } |
196471e9 | 371 | |
e64fdf8a | 372 | //_____________________________________________________________________________ |
3304fa09 | 373 | void AliMUONTracker::UnloadClusters() |
e64fdf8a | 374 | { |
1fef78c8 | 375 | /// Clear internal clusterStore |
376 | ||
cfeca9e2 | 377 | fInputClusterStore->Clear(); |
196471e9 | 378 | } |
9bf6860b | 379 | |
380 | ||
381 | //_____________________________________________________________________________ | |
382 | void | |
383 | AliMUONTracker::SetupClusterServer(AliMUONVClusterServer& clusterServer) | |
384 | { | |
385 | /// Setup the cluster server | |
386 | ||
a0dc65b4 | 387 | if ( GetRecoParam()->BypassSt4() || |
388 | GetRecoParam()->BypassSt5() ) | |
9bf6860b | 389 | { |
390 | Bool_t ok = clusterServer.UseTriggerTrackStore(TriggerTrackStore()); | |
391 | ||
de487b6e | 392 | TString msg1; |
393 | TString msg2; | |
394 | ||
a0dc65b4 | 395 | if ( GetRecoParam()->BypassSt45() ) |
de487b6e | 396 | { |
397 | msg1 = "STATIONS 4 AND 5"; | |
398 | msg2 = "THOSE TWO STATIONS"; | |
399 | } | |
a0dc65b4 | 400 | else if ( GetRecoParam()->BypassSt4() ) |
de487b6e | 401 | { |
402 | msg1 = "STATION 4"; | |
403 | msg2 = "THAT STATION"; | |
404 | } | |
a0dc65b4 | 405 | else if ( GetRecoParam()->BypassSt5() ) |
de487b6e | 406 | { |
407 | msg1 = "STATION 5"; | |
408 | msg2 = "THAT STATION"; | |
409 | } | |
410 | ||
9bf6860b | 411 | if ( ok ) |
9bf6860b | 412 | { |
de487b6e | 413 | AliWarning(Form("WILL USE TRIGGER TRACKS TO GENERATE CLUSTERS IN %s, " |
414 | "THUS BYPASSING REAL CLUSTERS IN %s!!!",msg1.Data(),msg2.Data())); | |
9bf6860b | 415 | } |
416 | else | |
417 | { | |
de487b6e | 418 | AliWarning("BYPASSING OF ST4 AND/OR 5 REQUESTED, BUT CLUSTERSERVER DOES NOT SEEM TO SUPPORT IT !!!"); |
9bf6860b | 419 | } |
420 | } | |
421 | } | |
422 | ||
423 |