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b8dc484b | 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 | ||
d19b6003 | 16 | /* $Id$ */ |
17 | ||
5398f946 | 18 | /// \class AliMUONRecoCheck |
78649106 | 19 | /// Utility class to check reconstruction |
5398f946 | 20 | /// Reconstructed tracks are compared to reference tracks. |
21 | /// The reference tracks are built from AliTrackReference for the | |
22 | /// hit in chamber (0..9) and from kinematics for the vertex parameters. | |
b8dc484b | 23 | |
cc056de1 | 24 | #include "AliMUON.h" |
25 | #include "AliMUONRecoCheck.h" | |
26 | #include "AliMUONTrack.h" | |
27 | #include "AliMUONData.h" | |
28 | #include "AliMUONConstants.h" | |
b8dc484b | 29 | |
b8dc484b | 30 | #include "AliLoader.h" |
31 | #include "AliRunLoader.h" | |
b8dc484b | 32 | #include "AliHeader.h" |
b8dc484b | 33 | #include "AliStack.h" |
cc056de1 | 34 | #include "AliTrackReference.h" |
35 | #include "AliLog.h" | |
36 | ||
37 | #include <TParticle.h> | |
b8dc484b | 38 | |
5398f946 | 39 | /// \cond CLASSIMP |
b8dc484b | 40 | ClassImp(AliMUONRecoCheck) |
5398f946 | 41 | /// \endcond |
b8dc484b | 42 | |
068e4c36 | 43 | //_____________________________________________________________________________ |
44 | AliMUONRecoCheck::AliMUONRecoCheck(Char_t *chLoader) | |
45 | : TObject(), | |
46 | fRunLoader(0x0), | |
47 | fMUONData(0x0), | |
48 | fMuonTrackRef(0x0), | |
49 | fTrackReco(0x0), | |
50 | fReconstructibleTracks(0), | |
51 | fRecoTracks(0), | |
52 | fIsLoadConstructor(kTRUE) | |
53 | { | |
54 | /// Constructor using "galice.root", | |
55 | /// takes care of loading/unloading Kinematics, TrackRefs and Tracks | |
56 | ||
57 | fMuonTrackRef = new TClonesArray("AliMUONTrack", 10); | |
58 | ||
59 | // run loader | |
60 | fRunLoader = AliRunLoader::Open(chLoader); | |
61 | if (!fRunLoader) { | |
62 | AliError(Form("no run loader found " )); | |
63 | return; | |
64 | } | |
65 | ||
66 | // initialize loader | |
67 | AliLoader *loader = fRunLoader->GetLoader("MUONLoader"); | |
68 | ||
69 | // container | |
70 | fMUONData = new AliMUONData(loader,"MUON","MUON"); | |
71 | if (!fMUONData) { | |
72 | AliError(Form("no MUONData found " )); | |
73 | return; | |
74 | } | |
75 | ||
76 | fRunLoader->LoadKinematics("READ"); | |
77 | fRunLoader->LoadTrackRefs("READ"); | |
78 | loader->LoadTracks("READ"); | |
79 | ||
80 | } | |
81 | ||
b8dc484b | 82 | //_____________________________________________________________________________ |
45a05f07 | 83 | AliMUONRecoCheck::AliMUONRecoCheck(AliRunLoader *runloader, AliMUONData *muondata) |
54d7ba50 | 84 | : TObject(), |
85 | fRunLoader(0x0), | |
86 | fMUONData(0x0), | |
87 | fMuonTrackRef(0x0), | |
88 | fTrackReco(0x0), | |
89 | fReconstructibleTracks(0), | |
068e4c36 | 90 | fRecoTracks(0), |
91 | fIsLoadConstructor(kFALSE) | |
b8dc484b | 92 | { |
068e4c36 | 93 | /// Constructor from AliRunLoader and AliMUONData, |
94 | /// does not load/unload Kinematics, TrackRefs and Tracks internally | |
95 | /// it should be done in the execution program (e.g. see MUONRecoCheck.C) | |
5398f946 | 96 | |
b8dc484b | 97 | fMuonTrackRef = new TClonesArray("AliMUONTrack", 10); |
98 | ||
45a05f07 | 99 | // run loader |
100 | fRunLoader = runloader; | |
b8dc484b | 101 | if (!fRunLoader) { |
45a05f07 | 102 | AliError(Form("no run loader found " )); |
b8dc484b | 103 | return; |
104 | } | |
b8dc484b | 105 | |
45a05f07 | 106 | // container |
107 | fMUONData = muondata; | |
108 | if (!fMUONData) { | |
109 | AliError(Form("no MUONData found " )); | |
110 | return; | |
111 | } | |
b8dc484b | 112 | |
b8dc484b | 113 | } |
114 | ||
45a05f07 | 115 | |
b8dc484b | 116 | //_____________________________________________________________________________ |
117 | AliMUONRecoCheck::~AliMUONRecoCheck() | |
118 | { | |
d19b6003 | 119 | /// Destructor |
b8dc484b | 120 | delete fMuonTrackRef; |
068e4c36 | 121 | if(fIsLoadConstructor){ |
122 | fRunLoader->UnloadKinematics(); | |
123 | fRunLoader->UnloadTrackRefs(); | |
124 | fRunLoader->UnloadTracks(); | |
125 | delete fMUONData; | |
fac70e25 | 126 | delete fRunLoader; |
068e4c36 | 127 | } |
b8dc484b | 128 | } |
129 | ||
130 | //_____________________________________________________________________________ | |
131 | void AliMUONRecoCheck::MakeTrackRef() | |
132 | { | |
d19b6003 | 133 | /// Make reconstructible tracks |
b8dc484b | 134 | |
135 | AliTrackReference *trackReference; | |
136 | AliMUONTrack *muonTrack; | |
137 | AliMUONTrackParam *trackParam; | |
138 | AliMUONHitForRec *hitForRec; | |
139 | Float_t x, y, z, pX, pY, pZ, pYZ; | |
140 | Int_t track, trackSave; | |
141 | TParticle *particle; | |
142 | Float_t bendingSlope = 0; | |
143 | Float_t nonBendingSlope = 0; | |
144 | Float_t inverseBendingMomentum = 0; | |
145 | ||
146 | TTree* treeTR = fRunLoader->TreeTR(); | |
147 | if (treeTR == NULL) return; | |
148 | ||
149 | TBranch* branch = treeTR->GetBranch("MUON"); | |
150 | if (branch == NULL) return; | |
151 | ||
de876dd1 | 152 | TClonesArray* trackRefs = 0; |
b8dc484b | 153 | branch->SetAddress(&trackRefs); |
de876dd1 | 154 | branch->SetAutoDelete(kTRUE); |
b8dc484b | 155 | |
de876dd1 | 156 | Int_t nTrackRef = (Int_t)branch->GetEntries(); |
b8dc484b | 157 | |
158 | track = trackSave = -999; | |
159 | Bool_t isNewTrack; | |
30d3ea8a | 160 | Int_t iHitMin, iChamber, detElemId; |
b8dc484b | 161 | |
162 | trackParam = new AliMUONTrackParam(); | |
163 | hitForRec = new AliMUONHitForRec(); | |
b8dc484b | 164 | |
cc056de1 | 165 | Int_t max = fRunLoader->GetHeader()->Stack()->GetNtrack(); |
b8dc484b | 166 | for (Int_t iTrackRef = 0; iTrackRef < nTrackRef; iTrackRef++) { |
cc056de1 | 167 | |
de876dd1 | 168 | branch->GetEntry(iTrackRef); |
b8dc484b | 169 | |
170 | iHitMin = 0; | |
171 | isNewTrack = kTRUE; | |
dba3c809 | 172 | |
29fc2c86 | 173 | if (!trackRefs->GetEntries()) continue; |
b8dc484b | 174 | |
29fc2c86 | 175 | while (isNewTrack) { |
068e4c36 | 176 | |
177 | muonTrack = new AliMUONTrack(); | |
178 | ||
b8dc484b | 179 | for (Int_t iHit = iHitMin; iHit < trackRefs->GetEntries(); iHit++) { |
180 | ||
181 | trackReference = (AliTrackReference*)trackRefs->At(iHit); | |
182 | x = trackReference->X(); | |
183 | y = trackReference->Y(); | |
184 | z = trackReference->Z(); | |
185 | pX = trackReference->Px(); | |
186 | pY = trackReference->Py(); | |
187 | pZ = trackReference->Pz(); | |
188 | ||
189 | track = trackReference->GetTrack(); | |
190 | ||
cc056de1 | 191 | if(track >= max){ |
192 | AliWarningStream() | |
193 | << "Track ID " << track | |
194 | << " larger than max number of particles " << max << endl; | |
195 | isNewTrack = kFALSE; | |
196 | break; | |
197 | } | |
b8dc484b | 198 | if (track != trackSave && iHit != 0) { |
199 | iHitMin = iHit; | |
200 | trackSave = track; | |
201 | break; | |
202 | } | |
203 | ||
204 | // track parameters at hit | |
205 | trackParam->SetBendingCoor(y); | |
206 | trackParam->SetNonBendingCoor(x); | |
207 | trackParam->SetZ(z); | |
cc056de1 | 208 | |
b8dc484b | 209 | if (TMath::Abs(pZ) > 0) { |
210 | bendingSlope = pY/pZ; | |
211 | nonBendingSlope = pX/pZ; | |
212 | } | |
213 | pYZ = TMath::Sqrt(pY*pY+pZ*pZ); | |
214 | if (pYZ >0) inverseBendingMomentum = 1/pYZ; | |
215 | ||
216 | trackParam->SetBendingSlope(bendingSlope); | |
217 | trackParam->SetNonBendingSlope(nonBendingSlope); | |
218 | trackParam->SetInverseBendingMomentum(inverseBendingMomentum); | |
219 | ||
220 | hitForRec->SetBendingCoor(y); | |
221 | hitForRec->SetNonBendingCoor(x); | |
222 | hitForRec->SetZ(z); | |
223 | hitForRec->SetBendingReso2(0.0); | |
30d3ea8a | 224 | hitForRec->SetNonBendingReso2(0.0); |
225 | detElemId = hitForRec->GetDetElemId(); | |
226 | if (detElemId) iChamber = detElemId / 100 - 1; | |
227 | else iChamber = AliMUONConstants::ChamberNumber(z); | |
b8dc484b | 228 | hitForRec->SetChamberNumber(iChamber); |
229 | ||
068e4c36 | 230 | muonTrack->AddTrackParamAtHit(trackParam,0); |
b8dc484b | 231 | muonTrack->AddHitForRecAtHit(hitForRec); |
232 | muonTrack->SetTrackID(track); | |
cc056de1 | 233 | |
b8dc484b | 234 | trackSave = track; |
235 | if (iHit == trackRefs->GetEntries()-1) isNewTrack = kFALSE; | |
236 | } | |
cc056de1 | 237 | |
b8dc484b | 238 | // track parameters at vertex |
239 | particle = fRunLoader->GetHeader()->Stack()->Particle(muonTrack->GetTrackID()); | |
cc056de1 | 240 | |
b8dc484b | 241 | if (particle) { |
cc056de1 | 242 | |
b8dc484b | 243 | x = particle->Vx(); |
244 | y = particle->Vy(); | |
245 | z = particle->Vz(); | |
246 | pX = particle->Px(); | |
247 | pY = particle->Py(); | |
248 | pZ = particle->Pz(); | |
249 | ||
250 | trackParam->SetBendingCoor(y); | |
251 | trackParam->SetNonBendingCoor(x); | |
252 | trackParam->SetZ(z); | |
253 | if (TMath::Abs(pZ) > 0) { | |
254 | bendingSlope = pY/pZ; | |
255 | nonBendingSlope = pX/pZ; | |
256 | } | |
257 | pYZ = TMath::Sqrt(pY*pY+pZ*pZ); | |
258 | if (pYZ >0) inverseBendingMomentum = 1/pYZ; | |
259 | trackParam->SetBendingSlope(bendingSlope); | |
260 | trackParam->SetNonBendingSlope(nonBendingSlope); | |
261 | trackParam->SetInverseBendingMomentum(inverseBendingMomentum); | |
262 | ||
263 | muonTrack->SetTrackParamAtVertex(trackParam); | |
264 | } | |
cc056de1 | 265 | |
b8dc484b | 266 | AddMuonTrackReference(muonTrack); |
068e4c36 | 267 | delete muonTrack; |
268 | muonTrack = NULL; | |
b8dc484b | 269 | |
270 | } // end while isNewTrack | |
b8dc484b | 271 | } |
2782bbd7 | 272 | delete trackRefs; |
b8dc484b | 273 | CleanMuonTrackRef(); |
274 | ||
275 | ReconstructibleTracks(); | |
276 | ||
b8dc484b | 277 | delete trackParam; |
278 | delete hitForRec; | |
b8dc484b | 279 | |
280 | } | |
281 | ||
282 | //____________________________________________________________________________ | |
283 | TClonesArray* AliMUONRecoCheck::GetTrackReco() | |
284 | { | |
d19b6003 | 285 | /// Return TClonesArray of reconstructed tracks |
b8dc484b | 286 | |
45a05f07 | 287 | fMUONData->ResetRecTracks(); |
288 | fMUONData->SetTreeAddress("RT"); | |
289 | fTrackReco = fMUONData->RecTracks(); | |
290 | fMUONData->GetRecTracks(); | |
b8dc484b | 291 | fRecoTracks = fTrackReco->GetEntriesFast(); |
292 | return fTrackReco; | |
293 | } | |
294 | //_____________________________________________________________________________ | |
295 | void AliMUONRecoCheck::PrintEvent() const | |
296 | { | |
d19b6003 | 297 | /// Debug facility |
b8dc484b | 298 | |
299 | AliMUONTrack *track; | |
300 | AliMUONHitForRec *hitForRec; | |
301 | TClonesArray * hitForRecAtHit = 0; | |
302 | Float_t xRec,yRec,zRec; | |
303 | ||
304 | Int_t nTrackRef = fMuonTrackRef->GetEntriesFast(); | |
305 | ||
306 | printf(" ******************************* \n"); | |
307 | printf(" nb of tracks %d \n",nTrackRef); | |
308 | ||
309 | for (Int_t index = 0; index < nTrackRef; index++) { | |
310 | track = (AliMUONTrack*)fMuonTrackRef->At(index); | |
311 | hitForRecAtHit = track->GetHitForRecAtHit(); | |
312 | Int_t nTrackHits = hitForRecAtHit->GetEntriesFast(); | |
313 | printf(" track number %d \n",index); | |
314 | for (Int_t iHit = 0; iHit < nTrackHits; iHit++){ | |
315 | hitForRec = (AliMUONHitForRec*) hitForRecAtHit->At(iHit); | |
316 | xRec = hitForRec->GetNonBendingCoor(); | |
317 | yRec = hitForRec->GetBendingCoor(); | |
318 | zRec = hitForRec->GetZ(); | |
319 | printf(" x,y,z: %f , %f , %f \n",xRec,yRec,zRec); | |
320 | } | |
321 | } | |
322 | } | |
323 | ||
324 | //_____________________________________________________________________________ | |
325 | void AliMUONRecoCheck::ResetTracks() const | |
326 | { | |
d19b6003 | 327 | /// Reset tracks |
328 | ||
2782bbd7 | 329 | if (fMuonTrackRef) fMuonTrackRef->Delete(); |
b8dc484b | 330 | } |
331 | //_____________________________________________________________________________ | |
332 | void AliMUONRecoCheck::CleanMuonTrackRef() | |
333 | { | |
d19b6003 | 334 | /// Re-calculate hits parameters because two AliTrackReferences are recorded for |
335 | /// each chamber (one when particle is entering + one when particle is leaving | |
336 | /// the sensitive volume) | |
b8dc484b | 337 | |
338 | Float_t maxGasGap = 1.; // cm | |
339 | AliMUONTrack *track, *trackNew; | |
340 | AliMUONHitForRec *hitForRec, *hitForRec1, *hitForRec2; | |
341 | AliMUONTrackParam *trackParam, *trackParam1, *trackParam2, *trackParamAtVertex; | |
342 | TClonesArray * hitForRecAtHit = 0; | |
343 | TClonesArray * trackParamAtHit = 0; | |
344 | Float_t xRec,yRec,zRec; | |
345 | Float_t xRec1,yRec1,zRec1; | |
346 | Float_t xRec2,yRec2,zRec2; | |
347 | Float_t bendingSlope,nonBendingSlope,bendingMomentum; | |
348 | Float_t bendingSlope1,nonBendingSlope1,bendingMomentum1; | |
349 | Float_t bendingSlope2,nonBendingSlope2,bendingMomentum2; | |
350 | TClonesArray *newMuonTrackRef = new TClonesArray("AliMUONTrack", 10); | |
351 | Int_t iHit1; | |
30d3ea8a | 352 | Int_t iChamber = 0, detElemId = 0; |
b8dc484b | 353 | Int_t nRec = 0; |
354 | Int_t nTrackHits = 0; | |
355 | ||
356 | hitForRec = new AliMUONHitForRec(); | |
357 | trackParam = new AliMUONTrackParam(); | |
b8dc484b | 358 | |
359 | Int_t nTrackRef = fMuonTrackRef->GetEntriesFast(); | |
b8dc484b | 360 | for (Int_t index = 0; index < nTrackRef; index++) { |
361 | track = (AliMUONTrack*)fMuonTrackRef->At(index); | |
362 | hitForRecAtHit = track->GetHitForRecAtHit(); | |
363 | trackParamAtHit = track->GetTrackParamAtHit(); | |
364 | trackParamAtVertex = track->GetTrackParamAtVertex(); | |
365 | nTrackHits = hitForRecAtHit->GetEntriesFast(); | |
068e4c36 | 366 | trackNew = new AliMUONTrack(); |
b8dc484b | 367 | iHit1 = 0; |
368 | while (iHit1 < nTrackHits) { | |
369 | hitForRec1 = (AliMUONHitForRec*) hitForRecAtHit->At(iHit1); | |
370 | trackParam1 = (AliMUONTrackParam*) trackParamAtHit->At(iHit1); | |
371 | xRec1 = hitForRec1->GetNonBendingCoor(); | |
372 | yRec1 = hitForRec1->GetBendingCoor(); | |
373 | zRec1 = hitForRec1->GetZ(); | |
374 | xRec = xRec1; | |
375 | yRec = yRec1; | |
376 | zRec = zRec1; | |
377 | bendingSlope1 = trackParam1->GetBendingSlope(); | |
378 | nonBendingSlope1 = trackParam1->GetNonBendingSlope(); | |
de876dd1 | 379 | bendingMomentum1 = 0; |
380 | if (TMath::Abs(trackParam1->GetInverseBendingMomentum()) > 0) | |
381 | bendingMomentum1 = 1./trackParam1->GetInverseBendingMomentum(); | |
b8dc484b | 382 | bendingSlope = bendingSlope1; |
383 | nonBendingSlope = nonBendingSlope1; | |
384 | bendingMomentum = bendingMomentum1; | |
385 | nRec = 1; | |
386 | for (Int_t iHit2 = iHit1+1; iHit2 < nTrackHits; iHit2++) { | |
387 | hitForRec2 = (AliMUONHitForRec*) hitForRecAtHit->At(iHit2); | |
388 | trackParam2 = (AliMUONTrackParam*) trackParamAtHit->At(iHit2); | |
389 | xRec2 = hitForRec2->GetNonBendingCoor(); | |
390 | yRec2 = hitForRec2->GetBendingCoor(); | |
391 | zRec2 = hitForRec2->GetZ(); | |
392 | bendingSlope2 = trackParam2->GetBendingSlope(); | |
393 | nonBendingSlope2 = trackParam2->GetNonBendingSlope(); | |
de876dd1 | 394 | bendingMomentum2 = 0; |
395 | if (TMath::Abs(trackParam2->GetInverseBendingMomentum()) > 0) | |
396 | bendingMomentum2 = 1./trackParam2->GetInverseBendingMomentum(); | |
b8dc484b | 397 | |
398 | if ( TMath::Abs(zRec2-zRec1) < maxGasGap ) { | |
cc056de1 | 399 | |
b8dc484b | 400 | nRec++; |
401 | xRec += xRec2; | |
402 | yRec += yRec2; | |
403 | zRec += zRec2; | |
404 | bendingSlope += bendingSlope2; | |
405 | nonBendingSlope += nonBendingSlope2; | |
406 | bendingMomentum += bendingMomentum2; | |
407 | iHit1 = iHit2; | |
408 | } | |
409 | ||
410 | } // end iHit2 | |
411 | xRec /= (Float_t)nRec; | |
412 | yRec /= (Float_t)nRec; | |
413 | zRec /= (Float_t)nRec; | |
414 | bendingSlope /= (Float_t)nRec; | |
415 | nonBendingSlope /= (Float_t)nRec; | |
416 | bendingMomentum /= (Float_t)nRec; | |
417 | ||
418 | hitForRec->SetNonBendingCoor(xRec); | |
419 | hitForRec->SetBendingCoor(yRec); | |
420 | hitForRec->SetZ(zRec); | |
30d3ea8a | 421 | detElemId = hitForRec->GetDetElemId(); |
422 | if (detElemId) iChamber = detElemId / 100 - 1; | |
423 | else iChamber = AliMUONConstants::ChamberNumber(zRec); | |
b8dc484b | 424 | hitForRec->SetChamberNumber(iChamber); |
425 | hitForRec->SetBendingReso2(0.0); | |
426 | hitForRec->SetNonBendingReso2(0.0); | |
427 | trackParam->SetNonBendingCoor(xRec); | |
428 | trackParam->SetBendingCoor(yRec); | |
429 | trackParam->SetZ(zRec); | |
430 | trackParam->SetNonBendingSlope(nonBendingSlope); | |
431 | trackParam->SetBendingSlope(bendingSlope); | |
de876dd1 | 432 | if (TMath::Abs(bendingMomentum) > 0) |
433 | trackParam->SetInverseBendingMomentum(1./bendingMomentum); | |
b8dc484b | 434 | |
435 | trackNew->AddHitForRecAtHit(hitForRec); | |
068e4c36 | 436 | trackNew->AddTrackParamAtHit(trackParam,0); |
b8dc484b | 437 | |
438 | iHit1++; | |
439 | } // end iHit1 | |
440 | ||
441 | trackNew->SetTrackID(track->GetTrackID()); | |
442 | trackNew->SetTrackParamAtVertex(trackParamAtVertex); | |
068e4c36 | 443 | {new ((*newMuonTrackRef)[newMuonTrackRef->GetEntriesFast()]) AliMUONTrack(*trackNew);} |
444 | delete trackNew; | |
445 | trackNew = NULL; | |
b8dc484b | 446 | |
447 | } // end trackRef | |
448 | ||
2782bbd7 | 449 | fMuonTrackRef->Delete(); |
b8dc484b | 450 | nTrackRef = newMuonTrackRef->GetEntriesFast(); |
451 | for (Int_t index = 0; index < nTrackRef; index++) { | |
452 | track = (AliMUONTrack*)newMuonTrackRef->At(index); | |
453 | AddMuonTrackReference(track); | |
454 | } | |
455 | ||
b8dc484b | 456 | delete hitForRec; |
457 | delete trackParam; | |
29fc2c86 | 458 | newMuonTrackRef->Delete(); |
b8dc484b | 459 | delete newMuonTrackRef; |
460 | ||
461 | } | |
462 | ||
463 | //_____________________________________________________________________________ | |
464 | void AliMUONRecoCheck::ReconstructibleTracks() | |
465 | { | |
d19b6003 | 466 | /// Calculate the number of reconstructible tracks |
b8dc484b | 467 | |
468 | AliMUONTrack* track; | |
469 | TClonesArray* hitForRecAtHit = NULL; | |
470 | AliMUONHitForRec* hitForRec; | |
471 | Float_t zRec; | |
472 | Int_t nTrackRef, nTrackHits; | |
473 | Int_t isChamberInTrack[10]; | |
474 | Int_t iChamber = 0; | |
475 | Bool_t isTrackOK = kTRUE; | |
476 | ||
477 | fReconstructibleTracks = 0; | |
478 | ||
479 | nTrackRef = fMuonTrackRef->GetEntriesFast(); | |
480 | for (Int_t index = 0; index < nTrackRef; index++) { | |
481 | track = (AliMUONTrack*)fMuonTrackRef->At(index); | |
482 | hitForRecAtHit = track->GetHitForRecAtHit(); | |
483 | nTrackHits = hitForRecAtHit->GetEntriesFast(); | |
484 | for (Int_t ch = 0; ch < 10; ch++) isChamberInTrack[ch] = 0; | |
485 | ||
486 | for ( Int_t iHit = 0; iHit < nTrackHits; iHit++) { | |
487 | hitForRec = (AliMUONHitForRec*) hitForRecAtHit->At(iHit); | |
488 | zRec = hitForRec->GetZ(); | |
489 | iChamber = hitForRec->GetChamberNumber(); | |
490 | if (iChamber < 0 || iChamber > 10) continue; | |
491 | isChamberInTrack[iChamber] = 1; | |
cc056de1 | 492 | } |
493 | // track is reconstructible if the particle is depositing a hit | |
494 | // in the following chamber combinations: | |
495 | ||
b8dc484b | 496 | isTrackOK = kTRUE; |
cc056de1 | 497 | if (!isChamberInTrack[0] && !isChamberInTrack[1]) isTrackOK = kFALSE; |
498 | if (!isChamberInTrack[2] && !isChamberInTrack[3]) isTrackOK = kFALSE; | |
499 | if (!isChamberInTrack[4] && !isChamberInTrack[5]) isTrackOK = kFALSE; | |
500 | Int_t nHitsInLastStations=0; | |
501 | for (Int_t ch = 6; ch < AliMUONConstants::NTrackingCh(); ch++) | |
502 | if (isChamberInTrack[ch]) nHitsInLastStations++; | |
503 | if(nHitsInLastStations < 3) isTrackOK = kFALSE; | |
504 | ||
505 | if (isTrackOK) fReconstructibleTracks++; | |
b8dc484b | 506 | if (!isTrackOK) fMuonTrackRef->Remove(track); // remove non reconstructible tracks |
507 | } | |
508 | fMuonTrackRef->Compress(); | |
509 | } | |
510 |