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cac2eb58 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 **************************************************************************/
cac2eb58 15/* $Id$ */
16
17///////////////////////////////////////////////////////////////////////////////
18// //
b002ac70 19// class for MUON reconstruction //
cac2eb58 20// //
21///////////////////////////////////////////////////////////////////////////////
b002ac70 22#include <TParticle.h>
30178c30 23#include <TArrayF.h>
24
cac2eb58 25#include "AliRunLoader.h"
b002ac70 26#include "AliHeader.h"
27#include "AliGenEventHeader.h"
cac2eb58 28#include "AliESD.h"
cf464691 29#include "AliMUONReconstructor.h"
29f1b13a 30
cac2eb58 31#include "AliMUONData.h"
29f1b13a 32#include "AliMUONTrackReconstructor.h"
cac2eb58 33#include "AliMUONClusterReconstructor.h"
cac2eb58 34#include "AliMUONClusterFinderVS.h"
35#include "AliMUONTrack.h"
36#include "AliMUONTrackParam.h"
37#include "AliMUONTriggerTrack.h"
38#include "AliESDMuonTrack.h"
1197ff51 39#include "AliMUONRawData.h"
40
cf464691 41#include "AliRawReader.h"
cac2eb58 42
29f1b13a 43
cac2eb58 44ClassImp(AliMUONReconstructor)
45//_____________________________________________________________________________
46AliMUONReconstructor::AliMUONReconstructor()
30178c30 47 : AliReconstructor()
8789635b 48{
49}
50//_____________________________________________________________________________
51AliMUONReconstructor::~AliMUONReconstructor()
cac2eb58 52{
53}
54//_____________________________________________________________________________
55void 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 ???
29f1b13a 63 AliMUONTrackReconstructor* recoEvent = new AliMUONTrackReconstructor(loader);
cac2eb58 64 AliMUONData* dataEvent = recoEvent->GetMUONData();
65
66 AliMUONClusterReconstructor* recoCluster = new AliMUONClusterReconstructor(loader);
67 AliMUONData* dataCluster = recoCluster->GetMUONData();
7e4a628d 68 AliMUONClusterFinderVS *recModel = recoCluster->GetRecoModel();
69 recModel->SetGhostChi2Cut(10);
cac2eb58 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
8210cb40 80 //----------------------- digit2cluster & Trigger2Trigger -------------------
cac2eb58 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
ce3e25a8 90 dataCluster->MakeBranch("TC");
91 dataCluster->SetTreeAddress("TC");
7e4a628d 92 recoCluster->Trigger2Trigger();
ce3e25a8 93 dataCluster->Fill("TC");
cac2eb58 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
29f1b13a 112 loader->WriteTracks("OVERWRITE");
cac2eb58 113
114 //--------------------------- Resetting branches -----------------------
115 dataCluster->ResetDigits();
116 dataCluster->ResetRawClusters();
ce3e25a8 117 dataCluster->ResetTrigger();
cac2eb58 118
119 dataEvent->ResetRawClusters();
120 dataEvent->ResetTrigger();
29f1b13a 121 dataEvent->ResetRecTracks();
cac2eb58 122 dataEvent->ResetRecTriggerTracks();
29f1b13a 123
cac2eb58 124 }
125 loader->UnloadDigits();
126 loader->UnloadRecPoints();
127 loader->UnloadTracks();
128
129 delete recoCluster;
130 delete recoEvent;
cac2eb58 131}
cf464691 132
133//_____________________________________________________________________________
134void 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 ???
29f1b13a 141 AliMUONTrackReconstructor* recoEvent = new AliMUONTrackReconstructor(loader);
cf464691 142 AliMUONData* dataEvent = recoEvent->GetMUONData();
143
1197ff51 144 AliMUONRawData* rawData = new AliMUONRawData(loader);
145 AliMUONData* dataCluster = rawData->GetMUONData();
146
147 AliMUONClusterReconstructor* recoCluster = new AliMUONClusterReconstructor(loader, dataCluster);
7e4a628d 148 AliMUONClusterFinderVS *recModel = recoCluster->GetRecoModel();
149 recModel->SetGhostChi2Cut(10);
cf464691 150
cf464691 151 loader->LoadRecPoints("RECREATE");
152 loader->LoadTracks("RECREATE");
153
154 // Loop over events
8210cb40 155 Int_t iEvent = 0;
cf464691 156
8210cb40 157 while (rawReader->NextEvent()) {
cf464691 158 printf("Event %d\n",iEvent);
159 runLoader->GetEvent(iEvent++);
1197ff51 160 rawData->Raw2Digits(rawReader);
cf464691 161
8210cb40 162 //----------------------- digit2cluster & Trigger2Trigger -------------------
cf464691 163 if (!loader->TreeR()) loader->MakeRecPointsContainer();
164
165 // tracking branch
166 dataCluster->MakeBranch("RC");
167 dataCluster->SetTreeAddress("D,RC");
1197ff51 168 recoCluster->Digits2Clusters();
cf464691 169 dataCluster->Fill("RC");
170
171 // trigger branch
172 dataCluster->MakeBranch("TC");
173 dataCluster->SetTreeAddress("TC");
1197ff51 174 recoCluster->Trigger2Trigger();
cf464691 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 }
cf464691 207 loader->UnloadRecPoints();
208 loader->UnloadTracks();
209
210 delete recoCluster;
211 delete recoEvent;
cf464691 212}
213
cac2eb58 214//_____________________________________________________________________________
215void 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");
cac2eb58 222 AliMUONData* muonData = new AliMUONData(loader,"MUON","MUON");
223
224 // declaration
b002ac70 225 Int_t iEvent, nPart;
226 Int_t nTrackHits, nPrimary;
cac2eb58 227 Double_t fitFmin;
b002ac70 228 TArrayF vertex(3);
cac2eb58 229
230 Double_t bendingSlope, nonBendingSlope, inverseBendingMomentum;
231 Double_t xRec, yRec, zRec, chi2MatchTrigger;
232 Bool_t matchTrigger;
233
b002ac70 234 // setting pointer for tracks, triggertracks & trackparam at vertex
cac2eb58 235 AliMUONTrack* recTrack = 0;
236 AliMUONTrackParam* trackParam = 0;
237 AliMUONTriggerTrack* recTriggerTrack = 0;
b002ac70 238 TParticle* particle = new TParticle();
239 AliGenEventHeader* header = 0;
cac2eb58 240 iEvent = runLoader->GetEventNumber();
241 runLoader->GetEvent(iEvent);
242
b002ac70 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 }
cac2eb58 267 // setting ESD MUON class
30178c30 268 AliESDMuonTrack* theESDTrack = new AliESDMuonTrack() ;
cac2eb58 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
889a0215 298 trackParam = (AliMUONTrackParam*) (recTrack->GetTrackParamAtHit())->First();
299 trackParam->ExtrapToVertex(vertex[0],vertex[1],vertex[2]);
cac2eb58 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
30178c30 314 theESDTrack->SetInverseBendingMomentum(inverseBendingMomentum);
315 theESDTrack->SetThetaX(TMath::ATan(nonBendingSlope));
316 theESDTrack->SetThetaY(TMath::ATan(bendingSlope));
889a0215 317 theESDTrack->SetZ(zRec);
318 theESDTrack->SetBendingCoor(yRec); // calculate vertex at ESD or Tracking level ?
319 theESDTrack->SetNonBendingCoor(xRec);
30178c30 320 theESDTrack->SetChi2(fitFmin);
321 theESDTrack->SetNHit(nTrackHits);
322 theESDTrack->SetMatchTrigger(matchTrigger);
323 theESDTrack->SetChi2MatchTrigger(chi2MatchTrigger);
cac2eb58 324
325 // storing ESD MUON Track into ESD Event
326 if (nRecTracks != 0)
30178c30 327 esd->AddMuonTrack(theESDTrack);
cac2eb58 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();
b002ac70 340 if (!header)
341 runLoader->UnloadKinematics();
30178c30 342 delete theESDTrack;
cac2eb58 343 delete muonData;
b002ac70 344 // delete particle;
cac2eb58 345}