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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 | /* $Id$ */ | |
16 | ||
17 | /////////////////////////////////////////////////////////////////////////////// | |
18 | // // | |
19 | // class for MUON reconstruction // | |
20 | // // | |
21 | /////////////////////////////////////////////////////////////////////////////// | |
22 | #include <TParticle.h> | |
23 | #include <TArrayF.h> | |
24 | ||
25 | #include "AliRunLoader.h" | |
26 | #include "AliHeader.h" | |
27 | #include "AliGenEventHeader.h" | |
28 | #include "AliESD.h" | |
29 | #include "AliMUONReconstructor.h" | |
30 | ||
31 | #include "AliMUONData.h" | |
32 | #include "AliMUONTrackReconstructor.h" | |
33 | #include "AliMUONClusterReconstructor.h" | |
34 | #include "AliMUONClusterFinderVS.h" | |
35 | #include "AliMUONTrack.h" | |
36 | #include "AliMUONTrackParam.h" | |
37 | #include "AliMUONTriggerTrack.h" | |
38 | #include "AliESDMuonTrack.h" | |
39 | #include "AliMUONRawData.h" | |
40 | ||
41 | #include "AliRawReader.h" | |
42 | ||
43 | ||
44 | ClassImp(AliMUONReconstructor) | |
45 | //_____________________________________________________________________________ | |
46 | AliMUONReconstructor::AliMUONReconstructor() | |
47 | : AliReconstructor() | |
48 | { | |
49 | } | |
50 | //_____________________________________________________________________________ | |
51 | AliMUONReconstructor::~AliMUONReconstructor() | |
52 | { | |
53 | } | |
54 | //_____________________________________________________________________________ | |
55 | void AliMUONReconstructor::Reconstruct(AliRunLoader* runLoader) const | |
56 | { | |
57 | // AliLoader | |
58 | AliLoader* loader = runLoader->GetLoader("MUONLoader"); | |
59 | Int_t nEvents = runLoader->GetNumberOfEvents(); | |
60 | ||
61 | // used local container for each method | |
62 | // passing fLoader as argument, could be avoided ??? | |
63 | AliMUONTrackReconstructor* recoEvent = new AliMUONTrackReconstructor(loader); | |
64 | AliMUONData* dataEvent = recoEvent->GetMUONData(); | |
65 | ||
66 | AliMUONClusterReconstructor* recoCluster = new AliMUONClusterReconstructor(loader); | |
67 | AliMUONData* dataCluster = recoCluster->GetMUONData(); | |
68 | AliMUONClusterFinderVS *recModel = recoCluster->GetRecoModel(); | |
69 | recModel->SetGhostChi2Cut(10); | |
70 | ||
71 | loader->LoadDigits("READ"); | |
72 | loader->LoadRecPoints("RECREATE"); | |
73 | loader->LoadTracks("RECREATE"); | |
74 | ||
75 | // Loop over events | |
76 | for(Int_t ievent = 0; ievent < nEvents; ievent++) { | |
77 | printf("Event %d\n",ievent); | |
78 | runLoader->GetEvent(ievent); | |
79 | ||
80 | //----------------------- digit2cluster & Trigger2Trigger ------------------- | |
81 | if (!loader->TreeR()) loader->MakeRecPointsContainer(); | |
82 | ||
83 | // tracking branch | |
84 | dataCluster->MakeBranch("RC"); | |
85 | dataCluster->SetTreeAddress("D,RC"); | |
86 | recoCluster->Digits2Clusters(); | |
87 | dataCluster->Fill("RC"); | |
88 | ||
89 | // trigger branch | |
90 | dataCluster->MakeBranch("TC"); | |
91 | dataCluster->SetTreeAddress("TC"); | |
92 | recoCluster->Trigger2Trigger(); | |
93 | dataCluster->Fill("TC"); | |
94 | ||
95 | loader->WriteRecPoints("OVERWRITE"); | |
96 | ||
97 | //---------------------------- Track & TriggerTrack --------------------- | |
98 | if (!loader->TreeT()) loader->MakeTracksContainer(); | |
99 | ||
100 | // trigger branch | |
101 | dataEvent->MakeBranch("RL"); //trigger track | |
102 | dataEvent->SetTreeAddress("RL"); | |
103 | recoEvent->EventReconstructTrigger(); | |
104 | dataEvent->Fill("RL"); | |
105 | ||
106 | // tracking branch | |
107 | dataEvent->MakeBranch("RT"); //track | |
108 | dataEvent->SetTreeAddress("RT"); | |
109 | recoEvent->EventReconstruct(); | |
110 | dataEvent->Fill("RT"); | |
111 | ||
112 | loader->WriteTracks("OVERWRITE"); | |
113 | ||
114 | //--------------------------- Resetting branches ----------------------- | |
115 | dataCluster->ResetDigits(); | |
116 | dataCluster->ResetRawClusters(); | |
117 | dataCluster->ResetTrigger(); | |
118 | ||
119 | dataEvent->ResetRawClusters(); | |
120 | dataEvent->ResetTrigger(); | |
121 | dataEvent->ResetRecTracks(); | |
122 | dataEvent->ResetRecTriggerTracks(); | |
123 | ||
124 | } | |
125 | loader->UnloadDigits(); | |
126 | loader->UnloadRecPoints(); | |
127 | loader->UnloadTracks(); | |
128 | ||
129 | delete recoCluster; | |
130 | delete recoEvent; | |
131 | } | |
132 | ||
133 | //_____________________________________________________________________________ | |
134 | void AliMUONReconstructor::Reconstruct(AliRunLoader* runLoader, AliRawReader* rawReader) const | |
135 | { | |
136 | // AliLoader | |
137 | AliLoader* loader = runLoader->GetLoader("MUONLoader"); | |
138 | ||
139 | // used local container for each method | |
140 | // passing fLoader as argument, could be avoided ??? | |
141 | AliMUONTrackReconstructor* recoEvent = new AliMUONTrackReconstructor(loader); | |
142 | AliMUONData* dataEvent = recoEvent->GetMUONData(); | |
143 | ||
144 | AliMUONRawData* rawData = new AliMUONRawData(loader); | |
145 | AliMUONData* dataCluster = rawData->GetMUONData(); | |
146 | ||
147 | AliMUONClusterReconstructor* recoCluster = new AliMUONClusterReconstructor(loader, dataCluster); | |
148 | AliMUONClusterFinderVS *recModel = recoCluster->GetRecoModel(); | |
149 | recModel->SetGhostChi2Cut(10); | |
150 | ||
151 | loader->LoadRecPoints("RECREATE"); | |
152 | loader->LoadTracks("RECREATE"); | |
153 | ||
154 | // Loop over events | |
155 | Int_t iEvent = 0; | |
156 | ||
157 | while (rawReader->NextEvent()) { | |
158 | printf("Event %d\n",iEvent); | |
159 | runLoader->GetEvent(iEvent++); | |
160 | rawData->Raw2Digits(rawReader); | |
161 | ||
162 | //----------------------- digit2cluster & Trigger2Trigger ------------------- | |
163 | if (!loader->TreeR()) loader->MakeRecPointsContainer(); | |
164 | ||
165 | // tracking branch | |
166 | dataCluster->MakeBranch("RC"); | |
167 | dataCluster->SetTreeAddress("D,RC"); | |
168 | recoCluster->Digits2Clusters(); | |
169 | dataCluster->Fill("RC"); | |
170 | ||
171 | // trigger branch | |
172 | dataCluster->MakeBranch("TC"); | |
173 | dataCluster->SetTreeAddress("TC"); | |
174 | recoCluster->Trigger2Trigger(); | |
175 | dataCluster->Fill("TC"); | |
176 | ||
177 | loader->WriteRecPoints("OVERWRITE"); | |
178 | ||
179 | //---------------------------- Track & TriggerTrack --------------------- | |
180 | if (!loader->TreeT()) loader->MakeTracksContainer(); | |
181 | ||
182 | // trigger branch | |
183 | dataEvent->MakeBranch("RL"); //trigger track | |
184 | dataEvent->SetTreeAddress("RL"); | |
185 | recoEvent->EventReconstructTrigger(); | |
186 | dataEvent->Fill("RL"); | |
187 | ||
188 | // tracking branch | |
189 | dataEvent->MakeBranch("RT"); //track | |
190 | dataEvent->SetTreeAddress("RT"); | |
191 | recoEvent->EventReconstruct(); | |
192 | dataEvent->Fill("RT"); | |
193 | ||
194 | loader->WriteTracks("OVERWRITE"); | |
195 | ||
196 | //--------------------------- Resetting branches ----------------------- | |
197 | dataCluster->ResetDigits(); | |
198 | dataCluster->ResetRawClusters(); | |
199 | dataCluster->ResetTrigger(); | |
200 | ||
201 | dataEvent->ResetRawClusters(); | |
202 | dataEvent->ResetTrigger(); | |
203 | dataEvent->ResetRecTracks(); | |
204 | dataEvent->ResetRecTriggerTracks(); | |
205 | ||
206 | } | |
207 | loader->UnloadRecPoints(); | |
208 | loader->UnloadTracks(); | |
209 | ||
210 | delete recoCluster; | |
211 | delete recoEvent; | |
212 | } | |
213 | ||
214 | //_____________________________________________________________________________ | |
215 | void AliMUONReconstructor::FillESD(AliRunLoader* runLoader, AliESD* esd) const | |
216 | { | |
217 | TClonesArray* recTracksArray = 0; | |
218 | TClonesArray* recTrigTracksArray = 0; | |
219 | ||
220 | AliLoader* loader = runLoader->GetLoader("MUONLoader"); | |
221 | loader->LoadTracks("READ"); | |
222 | AliMUONData* muonData = new AliMUONData(loader,"MUON","MUON"); | |
223 | ||
224 | // declaration | |
225 | Int_t iEvent, nPart; | |
226 | Int_t nTrackHits, nPrimary; | |
227 | Double_t fitFmin; | |
228 | TArrayF vertex(3); | |
229 | ||
230 | Double_t bendingSlope, nonBendingSlope, inverseBendingMomentum; | |
231 | Double_t xRec, yRec, zRec, chi2MatchTrigger; | |
232 | Bool_t matchTrigger; | |
233 | ||
234 | // setting pointer for tracks, triggertracks & trackparam at vertex | |
235 | AliMUONTrack* recTrack = 0; | |
236 | AliMUONTrackParam* trackParam = 0; | |
237 | AliMUONTriggerTrack* recTriggerTrack = 0; | |
238 | TParticle* particle = new TParticle(); | |
239 | AliGenEventHeader* header = 0; | |
240 | iEvent = runLoader->GetEventNumber(); | |
241 | runLoader->GetEvent(iEvent); | |
242 | ||
243 | // vertex calculation (maybe it exists already somewhere else) | |
244 | vertex[0] = vertex[1] = vertex[2] = 0.; | |
245 | nPrimary = 0; | |
246 | if ( (header = runLoader->GetHeader()->GenEventHeader()) ) { | |
247 | header->PrimaryVertex(vertex); | |
248 | } else { | |
249 | runLoader->LoadKinematics("READ"); | |
250 | runLoader->TreeK()->GetBranch("Particles")->SetAddress(&particle); | |
251 | nPart = (Int_t)runLoader->TreeK()->GetEntries(); | |
252 | for(Int_t iPart = 0; iPart < nPart; iPart++) { | |
253 | runLoader->TreeK()->GetEvent(iPart); | |
254 | if (particle->GetFirstMother() == -1) { | |
255 | vertex[0] += particle->Vx(); | |
256 | vertex[1] += particle->Vy(); | |
257 | vertex[2] += particle->Vz(); | |
258 | nPrimary++; | |
259 | } | |
260 | if (nPrimary) { | |
261 | vertex[0] /= (double)nPrimary; | |
262 | vertex[1] /= (double)nPrimary; | |
263 | vertex[2] /= (double)nPrimary; | |
264 | } | |
265 | } | |
266 | } | |
267 | // setting ESD MUON class | |
268 | AliESDMuonTrack* theESDTrack = new AliESDMuonTrack() ; | |
269 | ||
270 | //-------------------- trigger tracks------------- | |
271 | Long_t trigPat = 0; | |
272 | muonData->SetTreeAddress("RL"); | |
273 | muonData->GetRecTriggerTracks(); | |
274 | recTrigTracksArray = muonData->RecTriggerTracks(); | |
275 | ||
276 | // ready global trigger pattern from first track | |
277 | if (recTrigTracksArray) | |
278 | recTriggerTrack = (AliMUONTriggerTrack*) recTrigTracksArray->First(); | |
279 | if (recTriggerTrack) trigPat = recTriggerTrack->GetGTPattern(); | |
280 | ||
281 | //printf(">>> Event %d Number of Recconstructed tracks %d \n",iEvent, nrectracks); | |
282 | ||
283 | // -------------------- tracks------------- | |
284 | muonData->SetTreeAddress("RT"); | |
285 | muonData->GetRecTracks(); | |
286 | recTracksArray = muonData->RecTracks(); | |
287 | ||
288 | Int_t nRecTracks = 0; | |
289 | if (recTracksArray) | |
290 | nRecTracks = (Int_t) recTracksArray->GetEntriesFast(); // | |
291 | ||
292 | // loop over tracks | |
293 | for (Int_t iRecTracks = 0; iRecTracks < nRecTracks; iRecTracks++) { | |
294 | ||
295 | // reading info from tracks | |
296 | recTrack = (AliMUONTrack*) recTracksArray->At(iRecTracks); | |
297 | ||
298 | trackParam = (AliMUONTrackParam*) (recTrack->GetTrackParamAtHit())->First(); | |
299 | trackParam->ExtrapToVertex(vertex[0],vertex[1],vertex[2]); | |
300 | ||
301 | bendingSlope = trackParam->GetBendingSlope(); | |
302 | nonBendingSlope = trackParam->GetNonBendingSlope(); | |
303 | inverseBendingMomentum = trackParam->GetInverseBendingMomentum(); | |
304 | xRec = trackParam->GetNonBendingCoor(); | |
305 | yRec = trackParam->GetBendingCoor(); | |
306 | zRec = trackParam->GetZ(); | |
307 | ||
308 | nTrackHits = recTrack->GetNTrackHits(); | |
309 | fitFmin = recTrack->GetFitFMin(); | |
310 | matchTrigger = recTrack->GetMatchTrigger(); | |
311 | chi2MatchTrigger = recTrack->GetChi2MatchTrigger(); | |
312 | ||
313 | // setting data member of ESD MUON | |
314 | theESDTrack->SetInverseBendingMomentum(inverseBendingMomentum); | |
315 | theESDTrack->SetThetaX(TMath::ATan(nonBendingSlope)); | |
316 | theESDTrack->SetThetaY(TMath::ATan(bendingSlope)); | |
317 | theESDTrack->SetZ(zRec); | |
318 | theESDTrack->SetBendingCoor(yRec); // calculate vertex at ESD or Tracking level ? | |
319 | theESDTrack->SetNonBendingCoor(xRec); | |
320 | theESDTrack->SetChi2(fitFmin); | |
321 | theESDTrack->SetNHit(nTrackHits); | |
322 | theESDTrack->SetMatchTrigger(matchTrigger); | |
323 | theESDTrack->SetChi2MatchTrigger(chi2MatchTrigger); | |
324 | ||
325 | // storing ESD MUON Track into ESD Event | |
326 | if (nRecTracks != 0) | |
327 | esd->AddMuonTrack(theESDTrack); | |
328 | } // end loop tracks | |
329 | ||
330 | // add global trigger pattern | |
331 | if (nRecTracks != 0) | |
332 | esd->SetTrigger(trigPat); | |
333 | ||
334 | // reset muondata | |
335 | muonData->ResetRecTracks(); | |
336 | muonData->ResetRecTriggerTracks(); | |
337 | ||
338 | //} // end loop on event | |
339 | loader->UnloadTracks(); | |
340 | if (!header) | |
341 | runLoader->UnloadKinematics(); | |
342 | delete theESDTrack; | |
343 | delete muonData; | |
344 | // delete particle; | |
345 | } |