1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
17 ///////////////////////////////////////////////////////////////////////////////
19 // class for MUON reconstruction //
21 ///////////////////////////////////////////////////////////////////////////////
22 #include <TParticle.h>
25 #include "AliRunLoader.h"
26 #include "AliHeader.h"
27 #include "AliGenEventHeader.h"
29 #include "AliMUONReconstructor.h"
31 #include "AliMUONData.h"
32 #include "AliMUONTrackReconstructor.h"
33 #include "AliMUONClusterReconstructor.h"
34 #include "AliMUONClusterFinderVS.h"
35 #include "AliMUONClusterFinderAZ.h"
36 #include "AliMUONEventRecoCombi.h"
37 #include "AliMUONTrack.h"
38 #include "AliMUONTrackParam.h"
39 #include "AliMUONTriggerTrack.h"
40 #include "AliESDMuonTrack.h"
41 #include "AliMUONRawData.h"
43 #include "AliRawReader.h"
46 ClassImp(AliMUONReconstructor)
47 //_____________________________________________________________________________
48 AliMUONReconstructor::AliMUONReconstructor()
52 //_____________________________________________________________________________
53 AliMUONReconstructor::~AliMUONReconstructor()
56 //_____________________________________________________________________________
57 void AliMUONReconstructor::Reconstruct(AliRunLoader* runLoader) const
60 AliLoader* loader = runLoader->GetLoader("MUONLoader");
61 Int_t nEvents = runLoader->GetNumberOfEvents();
63 // used local container for each method
64 // passing fLoader as argument, could be avoided ???
65 AliMUONTrackReconstructor* recoEvent = new AliMUONTrackReconstructor(loader);
66 AliMUONData* dataEvent = recoEvent->GetMUONData();
67 if (strstr(GetOption(),"Kalman")) recoEvent->SetTrackMethod(2); // Kalman
68 else if (strstr(GetOption(),"Combi")) recoEvent->SetTrackMethod(3); // Combined cluster / track
69 else recoEvent->SetTrackMethod(1); // original
71 AliMUONClusterReconstructor* recoCluster = new AliMUONClusterReconstructor(loader);
72 AliMUONData* dataCluster = recoCluster->GetMUONData();
73 AliMUONClusterFinderVS *recModel = recoCluster->GetRecoModel();
74 if (strstr(GetOption(),"AZ") || strstr(GetOption(),"Combi")) {
75 recModel = (AliMUONClusterFinderVS*) new AliMUONClusterFinderAZ();
76 recoCluster->SetRecoModel(recModel);
78 recModel->SetGhostChi2Cut(10);
80 loader->LoadDigits("READ");
81 loader->LoadRecPoints("RECREATE");
82 loader->LoadTracks("RECREATE");
84 Int_t chBeg = recoEvent->GetTrackMethod() == 3 ? 6 : 0;
86 for(Int_t ievent = 0; ievent < nEvents; ievent++) {
87 printf("Event %d\n",ievent);
88 runLoader->GetEvent(ievent);
90 //----------------------- digit2cluster & Trigger2Trigger -------------------
91 if (!loader->TreeR()) loader->MakeRecPointsContainer();
94 if (recoEvent->GetTrackMethod() != 3) {
95 dataCluster->MakeBranch("RC");
96 dataCluster->SetTreeAddress("D,RC");
98 dataCluster->SetTreeAddress("D");
99 dataCluster->SetTreeAddress("RCC");
101 // Important for avoiding a memory leak when reading digits ( to be investigated more in detail)
102 // In any case the reading of GLT is needed for the Trigger2Tigger method below
103 dataCluster->SetTreeAddress("GLT");
105 recoCluster->Digits2Clusters(chBeg);
106 if (recoEvent->GetTrackMethod() == 3) {
107 // Combined cluster / track finder
108 AliMUONEventRecoCombi::Instance()->FillEvent(dataCluster, dataEvent, (AliMUONClusterFinderAZ*)recModel);
109 ((AliMUONClusterFinderAZ*) recModel)->SetReco(2);
111 else dataCluster->Fill("RC");
114 dataCluster->MakeBranch("TC");
115 dataCluster->SetTreeAddress("TC");
116 recoCluster->Trigger2Trigger();
117 dataCluster->Fill("TC");
119 //AZ loader->WriteRecPoints("OVERWRITE");
121 //---------------------------- Track & TriggerTrack ---------------------
122 if (!loader->TreeT()) loader->MakeTracksContainer();
125 dataEvent->MakeBranch("RL"); //trigger track
126 dataEvent->SetTreeAddress("RL");
127 recoEvent->EventReconstructTrigger();
128 dataEvent->Fill("RL");
131 dataEvent->MakeBranch("RT"); //track
132 dataEvent->SetTreeAddress("RT");
133 recoEvent->EventReconstruct();
134 dataEvent->Fill("RT");
136 loader->WriteTracks("OVERWRITE");
138 if (recoEvent->GetTrackMethod() == 3) {
139 // Combined cluster / track
140 ((AliMUONClusterFinderAZ*) recModel)->SetReco(1);
141 dataCluster->MakeBranch("RC");
142 dataCluster->SetTreeAddress("RC");
143 AliMUONEventRecoCombi::Instance()->FillRecP(dataCluster, recoEvent);
144 dataCluster->Fill("RC");
146 loader->WriteRecPoints("OVERWRITE");
148 //--------------------------- Resetting branches -----------------------
149 dataCluster->ResetDigits();
150 dataCluster->ResetRawClusters();
151 dataCluster->ResetTrigger();
153 dataEvent->ResetRawClusters();
154 dataEvent->ResetTrigger();
155 dataEvent->ResetRecTracks();
156 dataEvent->ResetRecTriggerTracks();
159 loader->UnloadDigits();
160 loader->UnloadRecPoints();
161 loader->UnloadTracks();
167 //_____________________________________________________________________________
168 void AliMUONReconstructor::Reconstruct(AliRunLoader* runLoader, AliRawReader* rawReader) const
171 AliLoader* loader = runLoader->GetLoader("MUONLoader");
173 // used local container for each method
174 // passing fLoader as argument, could be avoided ???
175 AliMUONTrackReconstructor* recoEvent = new AliMUONTrackReconstructor(loader);
176 AliMUONData* dataEvent = recoEvent->GetMUONData();
178 AliMUONRawData* rawData = new AliMUONRawData(loader);
179 AliMUONData* dataCluster = rawData->GetMUONData();
181 AliMUONClusterReconstructor* recoCluster = new AliMUONClusterReconstructor(loader, dataCluster);
182 AliMUONClusterFinderVS *recModel = recoCluster->GetRecoModel();
183 recModel->SetGhostChi2Cut(10);
185 loader->LoadRecPoints("RECREATE");
186 loader->LoadTracks("RECREATE");
187 loader->LoadDigits("RECREATE");
193 while (rawReader->NextEvent()) {
194 printf("Event %d\n",iEvent);
195 runLoader->GetEvent(iEvent++);
197 //----------------------- raw2digits & raw2trigger-------------------
198 if (!loader->TreeD()) loader->MakeDigitsContainer();
201 dataCluster->MakeBranch("D");
202 dataCluster->SetTreeAddress("D");
203 rawData->ReadTrackerDDL(rawReader);
204 dataCluster->Fill("D");
207 dataCluster->MakeBranch("GLT");
208 dataCluster->SetTreeAddress("GLT");
209 rawData->ReadTriggerDDL(rawReader);
210 dataCluster->Fill("GLT");
212 loader->WriteDigits("OVERWRITE");
214 //----------------------- digit2cluster & Trigger2Trigger -------------------
215 if (!loader->TreeR()) loader->MakeRecPointsContainer();
218 dataCluster->MakeBranch("RC");
219 dataCluster->SetTreeAddress("RC");
220 recoCluster->Digits2Clusters();
221 dataCluster->Fill("RC");
224 dataCluster->MakeBranch("TC");
225 dataCluster->SetTreeAddress("TC");
226 recoCluster->Trigger2Trigger();
227 dataCluster->Fill("TC");
229 loader->WriteRecPoints("OVERWRITE");
231 //---------------------------- Track & TriggerTrack ---------------------
232 if (!loader->TreeT()) loader->MakeTracksContainer();
235 dataEvent->MakeBranch("RL"); //trigger track
236 dataEvent->SetTreeAddress("RL");
237 recoEvent->EventReconstructTrigger();
238 dataEvent->Fill("RL");
241 dataEvent->MakeBranch("RT"); //track
242 dataEvent->SetTreeAddress("RT");
243 recoEvent->EventReconstruct();
244 dataEvent->Fill("RT");
246 loader->WriteTracks("OVERWRITE");
248 //--------------------------- Resetting branches -----------------------
249 dataCluster->ResetDigits();
250 dataCluster->ResetRawClusters();
251 dataCluster->ResetTrigger();
253 dataEvent->ResetRawClusters();
254 dataEvent->ResetTrigger();
255 dataEvent->ResetRecTracks();
256 dataEvent->ResetRecTriggerTracks();
259 loader->UnloadRecPoints();
260 loader->UnloadTracks();
261 loader->UnloadDigits();
267 //_____________________________________________________________________________
268 void AliMUONReconstructor::FillESD(AliRunLoader* runLoader, AliESD* esd) const
270 TClonesArray* recTracksArray = 0;
271 TClonesArray* recTrigTracksArray = 0;
273 AliLoader* loader = runLoader->GetLoader("MUONLoader");
274 loader->LoadTracks("READ");
275 AliMUONData* muonData = new AliMUONData(loader,"MUON","MUON");
278 Int_t iEvent;// nPart;
279 Int_t nTrackHits;// nPrimary;
283 Double_t bendingSlope, nonBendingSlope, inverseBendingMomentum;
284 Double_t xRec, yRec, zRec, chi2MatchTrigger;
287 // setting pointer for tracks, triggertracks & trackparam at vertex
288 AliMUONTrack* recTrack = 0;
289 AliMUONTrackParam* trackParam = 0;
290 AliMUONTriggerTrack* recTriggerTrack = 0;
291 // TParticle* particle = new TParticle();
292 // AliGenEventHeader* header = 0;
293 iEvent = runLoader->GetEventNumber();
294 runLoader->GetEvent(iEvent);
296 // vertex calculation (maybe it exists already somewhere else)
297 vertex[0] = vertex[1] = vertex[2] = 0.;
299 // if ( (header = runLoader->GetHeader()->GenEventHeader()) ) {
300 // header->PrimaryVertex(vertex);
302 // runLoader->LoadKinematics("READ");
303 // runLoader->TreeK()->GetBranch("Particles")->SetAddress(&particle);
304 // nPart = (Int_t)runLoader->TreeK()->GetEntries();
305 // for(Int_t iPart = 0; iPart < nPart; iPart++) {
306 // runLoader->TreeK()->GetEvent(iPart);
307 // if (particle->GetFirstMother() == -1) {
308 // vertex[0] += particle->Vx();
309 // vertex[1] += particle->Vy();
310 // vertex[2] += particle->Vz();
314 // vertex[0] /= (double)nPrimary;
315 // vertex[1] /= (double)nPrimary;
316 // vertex[2] /= (double)nPrimary;
320 // setting ESD MUON class
321 AliESDMuonTrack* theESDTrack = new AliESDMuonTrack() ;
323 //-------------------- trigger tracks-------------
325 muonData->SetTreeAddress("RL");
326 muonData->GetRecTriggerTracks();
327 recTrigTracksArray = muonData->RecTriggerTracks();
329 // ready global trigger pattern from first track
330 if (recTrigTracksArray)
331 recTriggerTrack = (AliMUONTriggerTrack*) recTrigTracksArray->First();
332 if (recTriggerTrack) trigPat = recTriggerTrack->GetGTPattern();
334 //printf(">>> Event %d Number of Recconstructed tracks %d \n",iEvent, nrectracks);
336 // -------------------- tracks-------------
337 muonData->SetTreeAddress("RT");
338 muonData->GetRecTracks();
339 recTracksArray = muonData->RecTracks();
341 Int_t nRecTracks = 0;
343 nRecTracks = (Int_t) recTracksArray->GetEntriesFast(); //
346 for (Int_t iRecTracks = 0; iRecTracks < nRecTracks; iRecTracks++) {
348 // reading info from tracks
349 recTrack = (AliMUONTrack*) recTracksArray->At(iRecTracks);
351 trackParam = (AliMUONTrackParam*) (recTrack->GetTrackParamAtHit())->First();
352 trackParam->ExtrapToVertex(vertex[0],vertex[1],vertex[2]);
354 bendingSlope = trackParam->GetBendingSlope();
355 nonBendingSlope = trackParam->GetNonBendingSlope();
356 inverseBendingMomentum = trackParam->GetInverseBendingMomentum();
357 xRec = trackParam->GetNonBendingCoor();
358 yRec = trackParam->GetBendingCoor();
359 zRec = trackParam->GetZ();
361 nTrackHits = recTrack->GetNTrackHits();
362 fitFmin = recTrack->GetFitFMin();
363 matchTrigger = recTrack->GetMatchTrigger();
364 chi2MatchTrigger = recTrack->GetChi2MatchTrigger();
366 // setting data member of ESD MUON
367 theESDTrack->SetInverseBendingMomentum(inverseBendingMomentum);
368 theESDTrack->SetThetaX(TMath::ATan(nonBendingSlope));
369 theESDTrack->SetThetaY(TMath::ATan(bendingSlope));
370 theESDTrack->SetZ(zRec);
371 theESDTrack->SetBendingCoor(yRec); // calculate vertex at ESD or Tracking level ?
372 theESDTrack->SetNonBendingCoor(xRec);
373 theESDTrack->SetChi2(fitFmin);
374 theESDTrack->SetNHit(nTrackHits);
375 theESDTrack->SetMatchTrigger(matchTrigger);
376 theESDTrack->SetChi2MatchTrigger(chi2MatchTrigger);
378 // storing ESD MUON Track into ESD Event
380 esd->AddMuonTrack(theESDTrack);
383 // add global trigger pattern
385 esd->SetTrigger(trigPat);
388 muonData->ResetRecTracks();
389 muonData->ResetRecTriggerTracks();
391 //} // end loop on event
392 loader->UnloadTracks();
394 // runLoader->UnloadKinematics();
398 }//_____________________________________________________________________________
399 void AliMUONReconstructor::FillESD(AliRunLoader* runLoader, AliRawReader* /*rawReader*/, AliESD* esd) const
401 // don't need rawReader ???
402 FillESD(runLoader, esd);