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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 | ||
16 | /* $Id$ */ | |
17 | ||
18 | //----------------------------------------------------------------------------- | |
19 | /// \class AliMUONTracker | |
20 | /// | |
21 | /// Steering class for use in global tracking framework; | |
22 | /// reconstruct tracks from recpoints | |
23 | /// | |
24 | /// Actual tracking is performed by some AliMUONVTrackReconstructor children | |
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) | |
28 | /// | |
29 | /// \author Christian Finck and Laurent Aphecetche, SUBATECH Nantes | |
30 | //----------------------------------------------------------------------------- | |
31 | ||
32 | #include "AliMUONTracker.h" | |
33 | ||
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" | |
42 | #include "AliMUONRecoParam.h" | |
43 | #include "AliMUONReconstructor.h" | |
44 | #include "AliMUONTrack.h" | |
45 | #include "AliMUONTrackExtrap.h" | |
46 | #include "AliMUONTrackHitPattern.h" | |
47 | #include "AliMUONTrackParam.h" | |
48 | #include "AliMUONTrackReconstructor.h" | |
49 | #include "AliMUONTrackReconstructorK.h" | |
50 | #include "AliMUONTrackStoreV1.h" | |
51 | #include "AliMUONTriggerTrackStoreV1.h" | |
52 | #include "AliMUONTriggerTrack.h" | |
53 | #include "AliMUONLocalTrigger.h" | |
54 | #include "AliMUONVClusterServer.h" | |
55 | #include "AliMUONVDigitStore.h" | |
56 | #include "AliMUONVTriggerStore.h" | |
57 | #include "AliMUONTriggerUtilities.h" | |
58 | #include <Riostream.h> | |
59 | #include <TRandom.h> | |
60 | #include <TTree.h> | |
61 | #include "AliLog.h" | |
62 | ||
63 | /// \cond CLASSIMP | |
64 | ClassImp(AliMUONTracker) | |
65 | /// \endcond | |
66 | ||
67 | ||
68 | //_____________________________________________________________________________ | |
69 | AliMUONTracker::AliMUONTracker(const AliMUONRecoParam* recoParam, | |
70 | AliMUONVClusterServer* clusterServer, | |
71 | AliMUONVDigitStore& digitStore, | |
72 | const AliMUONGeometryTransformer* transformer, | |
73 | const AliMUONTriggerCircuit* triggerCircuit, | |
74 | const AliMUONTriggerUtilities* triggerUtilities) | |
75 | : AliTracker(), | |
76 | fkTransformer(transformer), // not owner | |
77 | fkTriggerCircuit(triggerCircuit), // not owner | |
78 | fTrackHitPatternMaker(0x0), | |
79 | fTrackReco(0x0), | |
80 | fClusterStore(0x0), | |
81 | fTriggerStore(0x0), | |
82 | fClusterServer(clusterServer), | |
83 | fIsOwnerOfClusterServer(kFALSE), | |
84 | fkDigitStore(digitStore), // not owner | |
85 | fInputClusterStore(0x0), | |
86 | fTriggerTrackStore(0x0), | |
87 | fkRecoParam(recoParam), | |
88 | fInternalTrackStore(0x0) | |
89 | { | |
90 | /// constructor | |
91 | ||
92 | if (fkTransformer) | |
93 | fTrackHitPatternMaker = new AliMUONTrackHitPattern(recoParam,*fkTransformer,fkDigitStore,triggerUtilities); | |
94 | ||
95 | if (!fClusterServer) | |
96 | { | |
97 | AliDebug(1,"No cluster server given. Will use AliMUONLegacyClusterServer"); | |
98 | fIsOwnerOfClusterServer = kTRUE; | |
99 | } | |
100 | else | |
101 | { | |
102 | TIter next(fkDigitStore.CreateIterator()); | |
103 | fClusterServer->UseDigits(next,&digitStore); | |
104 | ||
105 | SetupClusterServer(*fClusterServer); | |
106 | } | |
107 | } | |
108 | ||
109 | //_____________________________________________________________________________ | |
110 | AliMUONTracker::~AliMUONTracker() | |
111 | { | |
112 | /// dtor | |
113 | ||
114 | delete fTrackReco; | |
115 | delete fTrackHitPatternMaker; | |
116 | delete fClusterStore; | |
117 | delete fTriggerStore; | |
118 | if ( fIsOwnerOfClusterServer ) delete fClusterServer; | |
119 | delete fInputClusterStore; | |
120 | delete fTriggerTrackStore; | |
121 | delete fInternalTrackStore; | |
122 | } | |
123 | ||
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 | ||
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 | ||
148 | //_____________________________________________________________________________ | |
149 | Int_t AliMUONTracker::LoadClusters(TTree* clustersTree) | |
150 | { | |
151 | /// Load triggerStore from clustersTree | |
152 | ||
153 | if ( ! clustersTree ) { | |
154 | AliFatal("No clustersTree"); | |
155 | return 1; | |
156 | } | |
157 | ||
158 | if ( !fTriggerStore ) | |
159 | { | |
160 | fTriggerStore = AliMUONVTriggerStore::Create(*clustersTree); | |
161 | } | |
162 | ||
163 | if (!fTriggerStore) | |
164 | { | |
165 | AliError("Could not get triggerStore"); | |
166 | return 2; | |
167 | } | |
168 | ||
169 | if (!fInputClusterStore) | |
170 | { | |
171 | fInputClusterStore = AliMUONVClusterStore::Create(*clustersTree); | |
172 | if (!fInputClusterStore) | |
173 | { | |
174 | AliError("Could not get clusterStore"); | |
175 | return 3; | |
176 | } | |
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 | ||
190 | } | |
191 | ||
192 | fInputClusterStore->Clear(); | |
193 | fInputClusterStore->Connect(*clustersTree,kFALSE); | |
194 | fTriggerStore->Clear(); | |
195 | fTriggerStore->Connect(*clustersTree,kFALSE); | |
196 | ||
197 | clustersTree->GetEvent(0); | |
198 | ||
199 | return 0; | |
200 | } | |
201 | ||
202 | //_____________________________________________________________________________ | |
203 | Int_t AliMUONTracker::Clusters2Tracks(AliESDEvent* esd) | |
204 | { | |
205 | /// Performs the tracking and store the resulting tracks in the ESD | |
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 | ||
215 | AliCodeTimerAuto("",0) | |
216 | ||
217 | if (!fTrackReco) | |
218 | { | |
219 | fTrackReco = CreateTrackReconstructor(GetRecoParam(),fClusterServer,fkTransformer); | |
220 | fInternalTrackStore = new AliMUONTrackStoreV1; | |
221 | } | |
222 | ||
223 | // if the required tracking mode does not exist | |
224 | if (!fTrackReco) return 1; | |
225 | ||
226 | if ( ! ClusterStore() ) | |
227 | { | |
228 | AliError("ClusterStore is NULL"); | |
229 | return 2; | |
230 | } | |
231 | ||
232 | if (!fTriggerStore) { | |
233 | AliError("TriggerStore is NULL"); | |
234 | return 3; | |
235 | } | |
236 | ||
237 | // Make trigger tracks | |
238 | if ( fkTriggerCircuit ) | |
239 | { | |
240 | TriggerTrackStore()->Clear(); | |
241 | fTrackReco->EventReconstructTrigger(*fkTriggerCircuit,*fTriggerStore,*(TriggerTrackStore())); | |
242 | } | |
243 | ||
244 | if ( TriggerTrackStore()->GetSize() > GetRecoParam()->GetMaxTriggerTracks() ) | |
245 | { | |
246 | // cut to reject shower events | |
247 | ||
248 | AliCodeTimerAuto("MUON Shower events",1); | |
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 | ||
256 | fTrackReco->EventReconstruct(*(ClusterStore()),*fInternalTrackStore); | |
257 | ||
258 | // Match tracker/trigger tracks | |
259 | if ( fTrackHitPatternMaker ) | |
260 | { | |
261 | fTrackReco->ValidateTracksWithTrigger(*fInternalTrackStore,*(TriggerTrackStore()),*fTriggerStore,*fTrackHitPatternMaker); | |
262 | } | |
263 | ||
264 | // Fill ESD | |
265 | FillESD(*fInternalTrackStore,esd); | |
266 | ||
267 | fInternalTrackStore->Clear(); | |
268 | ClusterStore()->Clear(); | |
269 | ||
270 | return 0; | |
271 | } | |
272 | ||
273 | //_____________________________________________________________________________ | |
274 | void AliMUONTracker::FillESD(const AliMUONVTrackStore& trackStore, AliESDEvent* esd) const | |
275 | { | |
276 | /// Fill the ESD from the trackStore | |
277 | AliDebug(1,""); | |
278 | AliCodeTimerAuto("",0) | |
279 | ||
280 | // get ITS vertex | |
281 | Double_t vertex[3] = {0., 0., 0.}; | |
282 | const AliESDVertex* esdVert = esd->GetVertex(); | |
283 | if (esdVert->GetNContributors() > 0 || !strcmp(esdVert->GetTitle(),"vertexer: smearMC")) { | |
284 | esdVert->GetXYZ(vertex); | |
285 | AliDebug(1,Form("found vertex (%e,%e,%e)",vertex[0],vertex[1],vertex[2])); | |
286 | } | |
287 | ||
288 | // fill ESD event including all info in ESD cluster if required and only for the given fraction of events | |
289 | AliMUONTrack* track; | |
290 | AliMUONLocalTrigger* locTrg; | |
291 | TIter next(trackStore.CreateIterator()); | |
292 | if (GetRecoParam()->SaveFullClusterInESD() && | |
293 | gRandom->Uniform(100.) <= GetRecoParam()->GetPercentOfFullClusterInESD()) { | |
294 | ||
295 | while ( ( track = static_cast<AliMUONTrack*>(next()) ) ) { | |
296 | ||
297 | if (track->GetMatchTrigger() > 0) { | |
298 | locTrg = static_cast<AliMUONLocalTrigger*>(fTriggerStore->FindLocal(track->LoCircuit())); | |
299 | AliMUONESDInterface::MUONToESD(*track, *esd, vertex, &fkDigitStore, locTrg); | |
300 | } else AliMUONESDInterface::MUONToESD(*track, *esd, vertex, &fkDigitStore); | |
301 | ||
302 | } | |
303 | ||
304 | } else { | |
305 | ||
306 | while ( ( track = static_cast<AliMUONTrack*>(next()) ) ) { | |
307 | ||
308 | if (track->GetMatchTrigger() > 0) { | |
309 | locTrg = static_cast<AliMUONLocalTrigger*>(fTriggerStore->FindLocal(track->LoCircuit())); | |
310 | AliMUONESDInterface::MUONToESD(*track, *esd, vertex, 0x0, locTrg); | |
311 | } else AliMUONESDInterface::MUONToESD(*track, *esd, vertex); | |
312 | ||
313 | } | |
314 | ||
315 | } | |
316 | ||
317 | // fill the local trigger decisions not matched with tracks (associate them to "ghost" tracks) | |
318 | UInt_t ghostId = 0xFFFFFFFF - 1; | |
319 | Bool_t matched = kFALSE; | |
320 | AliMUONTriggerTrack *triggerTrack; | |
321 | TIter itTriggerTrack(fTriggerTrackStore->CreateIterator()); | |
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; | |
331 | } | |
332 | if (matched) continue; | |
333 | ||
334 | AliMUONESDInterface::MUONToESD(*locTrg, *esd, ghostId, triggerTrack); | |
335 | ||
336 | ghostId -= 1; | |
337 | } | |
338 | ||
339 | } | |
340 | ||
341 | //_____________________________________________________________________________ | |
342 | AliMUONVTrackReconstructor* AliMUONTracker::CreateTrackReconstructor(const AliMUONRecoParam* recoParam, | |
343 | AliMUONVClusterServer* clusterServer, | |
344 | const AliMUONGeometryTransformer* transformer) | |
345 | { | |
346 | /// Create track reconstructor, depending on tracking mode set in RecoParam | |
347 | ||
348 | AliMUONVTrackReconstructor* trackReco(0x0); | |
349 | ||
350 | TString opt(recoParam->GetTrackingMode()); | |
351 | opt.ToUpper(); | |
352 | ||
353 | if (strstr(opt,"ORIGINAL")) | |
354 | { | |
355 | trackReco = new AliMUONTrackReconstructor(recoParam,clusterServer,transformer); | |
356 | } | |
357 | else if (strstr(opt,"KALMAN")) | |
358 | { | |
359 | trackReco = new AliMUONTrackReconstructorK(recoParam,clusterServer,transformer); | |
360 | } | |
361 | else | |
362 | { | |
363 | AliErrorClass(Form("tracking mode \"%s\" does not exist",opt.Data())); | |
364 | return 0x0; | |
365 | } | |
366 | ||
367 | AliDebugClass(1,Form("Will use %s for tracking",trackReco->ClassName())); | |
368 | ||
369 | return trackReco; | |
370 | } | |
371 | ||
372 | //_____________________________________________________________________________ | |
373 | void AliMUONTracker::UnloadClusters() | |
374 | { | |
375 | /// Clear internal clusterStore | |
376 | ||
377 | fInputClusterStore->Clear(); | |
378 | } | |
379 | ||
380 | ||
381 | //_____________________________________________________________________________ | |
382 | void | |
383 | AliMUONTracker::SetupClusterServer(AliMUONVClusterServer& clusterServer) | |
384 | { | |
385 | /// Setup the cluster server | |
386 | ||
387 | if ( GetRecoParam()->BypassSt4() || | |
388 | GetRecoParam()->BypassSt5() ) | |
389 | { | |
390 | Bool_t ok = clusterServer.UseTriggerTrackStore(TriggerTrackStore()); | |
391 | ||
392 | TString msg1; | |
393 | TString msg2; | |
394 | ||
395 | if ( GetRecoParam()->BypassSt45() ) | |
396 | { | |
397 | msg1 = "STATIONS 4 AND 5"; | |
398 | msg2 = "THOSE TWO STATIONS"; | |
399 | } | |
400 | else if ( GetRecoParam()->BypassSt4() ) | |
401 | { | |
402 | msg1 = "STATION 4"; | |
403 | msg2 = "THAT STATION"; | |
404 | } | |
405 | else if ( GetRecoParam()->BypassSt5() ) | |
406 | { | |
407 | msg1 = "STATION 5"; | |
408 | msg2 = "THAT STATION"; | |
409 | } | |
410 | ||
411 | if ( ok ) | |
412 | { | |
413 | AliWarning(Form("WILL USE TRIGGER TRACKS TO GENERATE CLUSTERS IN %s, " | |
414 | "THUS BYPASSING REAL CLUSTERS IN %s!!!",msg1.Data(),msg2.Data())); | |
415 | } | |
416 | else | |
417 | { | |
418 | AliWarning("BYPASSING OF ST4 AND/OR 5 REQUESTED, BUT CLUSTERSERVER DOES NOT SEEM TO SUPPORT IT !!!"); | |
419 | } | |
420 | } | |
421 | } | |
422 | ||
423 |