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b8dc484b | 1 | /************************************************************************** |
48217459 | 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 | **************************************************************************/ | |
b8dc484b | 15 | |
d19b6003 | 16 | /* $Id$ */ |
17 | ||
3d1463c8 | 18 | //----------------------------------------------------------------------------- |
5398f946 | 19 | /// \class AliMUONRecoCheck |
78649106 | 20 | /// Utility class to check reconstruction |
5398f946 | 21 | /// Reconstructed tracks are compared to reference tracks. |
22 | /// The reference tracks are built from AliTrackReference for the | |
23 | /// hit in chamber (0..9) and from kinematics for the vertex parameters. | |
3d1463c8 | 24 | //----------------------------------------------------------------------------- |
b8dc484b | 25 | |
9bdda5f6 | 26 | // 13 Nov 2007: |
27 | // Added a method to create a list of reconstructed AliMUONTrack objects from | |
28 | // ESD data. This is necessary since the track objects that are actually created | |
29 | // during offline reconstruction are no longer stored to disk. | |
30 | // - Artur Szostak <artursz@iafrica.com> | |
103e6575 | 31 | // 25 Jan 2008: |
32 | // Use the new ESDInterface to create MUON objects from ESD data | |
33 | // - Philippe Pillot | |
7c29acf1 | 34 | // |
9bdda5f6 | 35 | |
cc056de1 | 36 | #include "AliMUONRecoCheck.h" |
37 | #include "AliMUONTrack.h" | |
103e6575 | 38 | #include "AliMUONVTrackStore.h" |
39 | #include "AliMUONVCluster.h" | |
40 | #include "AliMUONVClusterStore.h" | |
cc056de1 | 41 | #include "AliMUONConstants.h" |
103e6575 | 42 | #include "AliMUONESDInterface.h" |
96ebe67e | 43 | #include "AliMCEventHandler.h" |
44 | #include "AliMCEvent.h" | |
b8dc484b | 45 | #include "AliStack.h" |
cc056de1 | 46 | #include "AliTrackReference.h" |
9bdda5f6 | 47 | #include "AliLog.h" |
48 | #include "AliESDEvent.h" | |
49 | #include "AliESDMuonTrack.h" | |
96ebe67e | 50 | |
61fed964 | 51 | #include <TFile.h> |
52 | #include <TTree.h> | |
cc056de1 | 53 | #include <TParticle.h> |
5b1afea0 | 54 | #include <TParticlePDG.h> |
96ebe67e | 55 | #include <Riostream.h> |
56 | ||
5398f946 | 57 | /// \cond CLASSIMP |
b8dc484b | 58 | ClassImp(AliMUONRecoCheck) |
5398f946 | 59 | /// \endcond |
b8dc484b | 60 | |
068e4c36 | 61 | //_____________________________________________________________________________ |
1f2d22de | 62 | AliMUONRecoCheck::AliMUONRecoCheck(const Char_t *esdFileName, const Char_t *pathSim) |
48217459 | 63 | : TObject(), |
96ebe67e | 64 | fMCEventHandler(new AliMCEventHandler()), |
61fed964 | 65 | fESDEvent(new AliESDEvent()), |
66 | fESDTree (0x0), | |
67 | fESDFile (0x0), | |
96ebe67e | 68 | fCurrentEvent(0), |
69 | fTrackRefStore(0x0), | |
70 | fRecoTrackRefStore(0x0), | |
7c29acf1 | 71 | fRecoTrackStore(0x0), |
72 | fESDEventOwner(kTRUE) | |
068e4c36 | 73 | { |
48217459 | 74 | /// Normal ctor |
61fed964 | 75 | |
76 | // TrackRefs and Particules | |
96ebe67e | 77 | fMCEventHandler->SetInputPath(pathSim); |
78 | fMCEventHandler->InitIO(""); | |
61fed964 | 79 | |
80 | // ESD MUON Tracks | |
81 | fESDFile = TFile::Open(esdFileName); // open the file | |
82 | if (!fESDFile || !fESDFile->IsOpen()) { | |
83 | AliError(Form("opening ESD file %s failed", esdFileName)); | |
84 | fESDFile = 0x0; | |
85 | return; | |
86 | } | |
87 | fESDTree = (TTree*) fESDFile->Get("esdTree"); // get the tree | |
88 | if (!fESDTree) { | |
89 | AliError("no ESD tree found"); | |
90 | fESDFile->Close(); | |
91 | fESDFile = 0x0; | |
92 | return; | |
93 | } | |
94 | fESDEvent->ReadFromTree(fESDTree); // link fESDEvent to the tree | |
068e4c36 | 95 | } |
96 | ||
7c29acf1 | 97 | //_____________________________________________________________________________ |
98 | AliMUONRecoCheck::AliMUONRecoCheck(AliESDEvent *esdEvent, AliMCEventHandler *mcEventHandler) | |
99 | : TObject(), | |
100 | fMCEventHandler(0), | |
101 | fESDEvent(0), | |
102 | fESDTree (0x0), | |
103 | fESDFile (0x0), | |
104 | fCurrentEvent(0), | |
105 | fTrackRefStore(0x0), | |
106 | fRecoTrackRefStore(0x0), | |
107 | fRecoTrackStore(0x0), | |
108 | fESDEventOwner(kFALSE) | |
109 | { | |
110 | /// Normal ctor | |
111 | ||
112 | // TrackRefs and Particules | |
113 | fMCEventHandler = mcEventHandler; | |
114 | ||
115 | // ESD MUON Tracks | |
116 | fESDEvent = esdEvent; | |
117 | ||
118 | } | |
119 | ||
b8dc484b | 120 | //_____________________________________________________________________________ |
48217459 | 121 | AliMUONRecoCheck::~AliMUONRecoCheck() |
b8dc484b | 122 | { |
48217459 | 123 | /// Destructor |
7c29acf1 | 124 | if (fESDEventOwner) { |
125 | delete fMCEventHandler; | |
126 | delete fESDEvent; | |
127 | if (fESDFile) fESDFile->Close(); | |
128 | } | |
96ebe67e | 129 | ResetStores(); |
130 | } | |
131 | ||
132 | //_____________________________________________________________________________ | |
133 | void AliMUONRecoCheck::ResetStores() | |
134 | { | |
135 | /// Deletes all the store objects that have been created and resets the pointers to 0x0 | |
136 | delete fTrackRefStore; fTrackRefStore = 0x0; | |
137 | delete fRecoTrackRefStore; fRecoTrackRefStore = 0x0; | |
138 | delete fRecoTrackStore; fRecoTrackStore = 0x0; | |
139 | } | |
140 | ||
141 | //_____________________________________________________________________________ | |
142 | Int_t AliMUONRecoCheck::NumberOfEvents() const | |
143 | { | |
144 | /// Return the number of events | |
7c29acf1 | 145 | if (fESDEventOwner && fESDTree) return fESDTree->GetEntries(); |
96ebe67e | 146 | return 0; |
b8dc484b | 147 | } |
148 | ||
48217459 | 149 | //_____________________________________________________________________________ |
96ebe67e | 150 | AliMUONVTrackStore* AliMUONRecoCheck::ReconstructedTracks(Int_t event) |
48217459 | 151 | { |
61fed964 | 152 | /// Return a track store containing the reconstructed tracks (converted into |
153 | /// MUONTrack objects) for a given event | |
7c29acf1 | 154 | |
155 | if (!fESDEventOwner) { | |
156 | MakeReconstructedTracks(); | |
157 | return fRecoTrackStore; | |
158 | } | |
159 | ||
96ebe67e | 160 | if (event != fCurrentEvent) { |
161 | ResetStores(); | |
162 | fCurrentEvent = event; | |
163 | } | |
164 | ||
165 | if (fRecoTrackStore != 0x0) return fRecoTrackStore; | |
61fed964 | 166 | else { |
167 | if (!fESDTree) return 0x0; | |
168 | if (fESDTree->GetEvent(event) <= 0) { | |
169 | AliError(Form("fails to read ESD object for event %d", event)); | |
170 | return 0x0; | |
9bdda5f6 | 171 | } |
61fed964 | 172 | MakeReconstructedTracks(); |
173 | return fRecoTrackStore; | |
9bdda5f6 | 174 | } |
9bdda5f6 | 175 | } |
176 | ||
177 | //_____________________________________________________________________________ | |
96ebe67e | 178 | AliMUONVTrackStore* AliMUONRecoCheck::TrackRefs(Int_t event) |
b8dc484b | 179 | { |
48217459 | 180 | /// Return a track store containing the track references (converted into |
181 | /// MUONTrack objects) for a given event | |
7c29acf1 | 182 | |
183 | if (!fESDEventOwner) { | |
184 | MakeTrackRefs(); | |
185 | return fTrackRefStore; | |
186 | } | |
187 | ||
96ebe67e | 188 | if (event != fCurrentEvent) { |
189 | ResetStores(); | |
190 | fCurrentEvent = event; | |
191 | } | |
192 | ||
193 | if (fTrackRefStore != 0x0) return fTrackRefStore; | |
194 | else { | |
61fed964 | 195 | if (!fMCEventHandler->GetEvent(event)) { |
196 | AliError(Form("fails to read MC objects for event %d", event)); | |
197 | return 0x0; | |
198 | } | |
96ebe67e | 199 | MakeTrackRefs(); |
200 | return fTrackRefStore; | |
201 | } | |
b8dc484b | 202 | } |
203 | ||
204 | //_____________________________________________________________________________ | |
96ebe67e | 205 | AliMUONVTrackStore* AliMUONRecoCheck::ReconstructibleTracks(Int_t event) |
b8dc484b | 206 | { |
48217459 | 207 | /// Return a track store containing the reconstructible tracks for a given event |
7c29acf1 | 208 | |
209 | if (!fESDEventOwner) { | |
210 | if (TrackRefs(event) == 0x0) return 0x0; | |
211 | MakeReconstructibleTracks(); | |
212 | return fRecoTrackRefStore; | |
213 | } | |
214 | ||
96ebe67e | 215 | if (event != fCurrentEvent) { |
216 | ResetStores(); | |
217 | fCurrentEvent = event; | |
218 | } | |
219 | ||
220 | if (fRecoTrackRefStore != 0x0) return fRecoTrackRefStore; | |
221 | else { | |
222 | if (TrackRefs(event) == 0x0) return 0x0; | |
223 | MakeReconstructibleTracks(); | |
224 | return fRecoTrackRefStore; | |
225 | } | |
48217459 | 226 | } |
b8dc484b | 227 | |
61fed964 | 228 | //_____________________________________________________________________________ |
229 | void AliMUONRecoCheck::MakeReconstructedTracks() | |
230 | { | |
231 | /// Make reconstructed tracks | |
103e6575 | 232 | if (!(fRecoTrackStore = AliMUONESDInterface::NewTrackStore())) return; |
61fed964 | 233 | |
b1fea02e | 234 | // loop over all reconstructed tracks and add them to the store (skip ghosts) |
103e6575 | 235 | Int_t nTracks = (Int_t) fESDEvent->GetNumberOfMuonTracks(); |
b1fea02e | 236 | for (Int_t iTrack = 0; iTrack < nTracks; iTrack++) { |
237 | AliESDMuonTrack* esdTrack = fESDEvent->GetMuonTrack(iTrack); | |
ad3c6eda | 238 | if (esdTrack->ContainTrackerData()) AliMUONESDInterface::Add(*esdTrack, *fRecoTrackStore); |
b1fea02e | 239 | } |
61fed964 | 240 | |
241 | } | |
242 | ||
48217459 | 243 | //_____________________________________________________________________________ |
96ebe67e | 244 | void AliMUONRecoCheck::MakeTrackRefs() |
48217459 | 245 | { |
246 | /// Make reconstructible tracks | |
103e6575 | 247 | AliMUONVTrackStore *tmpTrackRefStore = AliMUONESDInterface::NewTrackStore(); |
248 | if (!tmpTrackRefStore) return; | |
48217459 | 249 | |
96ebe67e | 250 | Double_t x, y, z, pX, pY, pZ, bendingSlope, nonBendingSlope, inverseBendingMomentum; |
251 | TParticle* particle; | |
252 | TClonesArray* trackRefs; | |
253 | Int_t nTrackRef = fMCEventHandler->MCEvent()->GetNumberOfTracks(); | |
103e6575 | 254 | AliMUONVClusterStore* cStore = AliMUONESDInterface::NewClusterStore(); |
255 | if (!cStore) return; | |
256 | AliMUONVCluster* hit = cStore->CreateCluster(0,0,0); | |
b8dc484b | 257 | |
96ebe67e | 258 | // loop over simulated tracks |
259 | for (Int_t iTrackRef = 0; iTrackRef < nTrackRef; ++iTrackRef) { | |
260 | Int_t nHits = fMCEventHandler->GetParticleAndTR(iTrackRef, particle, trackRefs); | |
48217459 | 261 | |
96ebe67e | 262 | // skip empty trackRefs |
263 | if (nHits < 1) continue; | |
264 | ||
61fed964 | 265 | // get the particle charge for further calculation |
266 | TParticlePDG* ppdg = particle->GetPDG(); | |
46df197d | 267 | Int_t charge = ppdg != NULL ? (Int_t)(ppdg->Charge()/3.0) : 0; |
96ebe67e | 268 | |
61fed964 | 269 | AliMUONTrack track; |
48217459 | 270 | |
96ebe67e | 271 | // loop over simulated track hits |
272 | for (Int_t iHit = 0; iHit < nHits; ++iHit) { | |
273 | AliTrackReference* trackReference = static_cast<AliTrackReference*>(trackRefs->UncheckedAt(iHit)); | |
068e4c36 | 274 | |
61fed964 | 275 | // skip trackRefs not in MUON |
276 | if (trackReference->DetectorId() != AliTrackReference::kMUON) continue; | |
277 | ||
96ebe67e | 278 | // Get track parameters of current hit |
279 | x = trackReference->X(); | |
280 | y = trackReference->Y(); | |
281 | z = trackReference->Z(); | |
282 | pX = trackReference->Px(); | |
283 | pY = trackReference->Py(); | |
284 | pZ = trackReference->Pz(); | |
b8dc484b | 285 | |
96ebe67e | 286 | // check chamberId of current trackReference |
c59f70b9 | 287 | Int_t detElemId = trackReference->UserId(); |
288 | Int_t chamberId = detElemId / 100 - 1; | |
96ebe67e | 289 | if (chamberId < 0 || chamberId >= AliMUONConstants::NTrackingCh()) continue; |
48217459 | 290 | |
96ebe67e | 291 | // set hit parameters |
c59f70b9 | 292 | hit->SetUniqueID(AliMUONVCluster::BuildUniqueID(chamberId, detElemId, iHit)); |
103e6575 | 293 | hit->SetXYZ(x,y,z); |
294 | hit->SetErrXY(0.,0.); | |
b8dc484b | 295 | |
96ebe67e | 296 | // compute track parameters at hit |
7cdc832b | 297 | bendingSlope = 0; |
298 | nonBendingSlope = 0; | |
299 | inverseBendingMomentum = 0; | |
96ebe67e | 300 | if (TMath::Abs(pZ) > 0) { |
301 | bendingSlope = pY/pZ; | |
302 | nonBendingSlope = pX/pZ; | |
b8dc484b | 303 | } |
96ebe67e | 304 | Double_t pYZ = TMath::Sqrt(pY*pY+pZ*pZ); |
305 | if (pYZ >0) inverseBendingMomentum = 1/pYZ; | |
306 | inverseBendingMomentum *= charge; | |
307 | ||
308 | // set track parameters at hit | |
309 | AliMUONTrackParam trackParam; | |
310 | trackParam.SetNonBendingCoor(x); | |
311 | trackParam.SetBendingCoor(y); | |
312 | trackParam.SetZ(z); | |
313 | trackParam.SetBendingSlope(bendingSlope); | |
314 | trackParam.SetNonBendingSlope(nonBendingSlope); | |
315 | trackParam.SetInverseBendingMomentum(inverseBendingMomentum); | |
316 | ||
317 | // add track parameters at current hit to the track | |
103e6575 | 318 | track.AddTrackParamAtCluster(trackParam, *hit, kTRUE); |
96ebe67e | 319 | } |
320 | ||
61fed964 | 321 | // if none of the track hits was in MUON, goto the next track |
322 | if (track.GetNClusters() < 1) continue; | |
323 | ||
324 | // get track parameters at particle's vertex | |
325 | x = particle->Vx(); | |
326 | y = particle->Vy(); | |
327 | z = particle->Vz(); | |
328 | pX = particle->Px(); | |
329 | pY = particle->Py(); | |
330 | pZ = particle->Pz(); | |
331 | ||
332 | // compute rest of track parameters at particle's vertex | |
333 | bendingSlope = 0; | |
334 | nonBendingSlope = 0; | |
335 | inverseBendingMomentum = 0; | |
336 | if (TMath::Abs(pZ) > 0) { | |
337 | bendingSlope = pY/pZ; | |
338 | nonBendingSlope = pX/pZ; | |
339 | } | |
340 | Double_t pYZ = TMath::Sqrt(pY*pY+pZ*pZ); | |
341 | if (pYZ >0) inverseBendingMomentum = 1/pYZ; | |
342 | inverseBendingMomentum *= charge; | |
343 | ||
344 | // set track parameters at particle's vertex | |
345 | AliMUONTrackParam trackParamAtVertex; | |
346 | trackParamAtVertex.SetNonBendingCoor(x); | |
347 | trackParamAtVertex.SetBendingCoor(y); | |
348 | trackParamAtVertex.SetZ(z); | |
349 | trackParamAtVertex.SetBendingSlope(bendingSlope); | |
350 | trackParamAtVertex.SetNonBendingSlope(nonBendingSlope); | |
351 | trackParamAtVertex.SetInverseBendingMomentum(inverseBendingMomentum); | |
352 | ||
353 | // add track parameters at vertex | |
354 | track.SetTrackParamAtVertex(&trackParamAtVertex); | |
355 | ||
103e6575 | 356 | // store the track |
96ebe67e | 357 | track.SetTrackID(iTrackRef); |
358 | tmpTrackRefStore->Add(track); | |
b8dc484b | 359 | } |
b8dc484b | 360 | |
96ebe67e | 361 | CleanMuonTrackRef(tmpTrackRefStore); |
48217459 | 362 | |
103e6575 | 363 | delete hit; |
364 | delete cStore; | |
96ebe67e | 365 | delete tmpTrackRefStore; |
b8dc484b | 366 | } |
367 | ||
368 | //_____________________________________________________________________________ | |
96ebe67e | 369 | void AliMUONRecoCheck::CleanMuonTrackRef(const AliMUONVTrackStore *tmpTrackRefStore) |
b8dc484b | 370 | { |
48217459 | 371 | /// Re-calculate hits parameters because two AliTrackReferences are recorded for |
372 | /// each chamber (one when particle is entering + one when particle is leaving | |
373 | /// the sensitive volume) | |
103e6575 | 374 | if (!(fTrackRefStore = AliMUONESDInterface::NewTrackStore())) return; |
48217459 | 375 | |
96ebe67e | 376 | Double_t maxGasGap = 1.; // cm |
377 | Double_t x, y, z, pX, pY, pZ, x1, y1, z1, pX1, pY1, pZ1, z2; | |
378 | Double_t bendingSlope,nonBendingSlope,inverseBendingMomentum; | |
103e6575 | 379 | AliMUONVClusterStore* cStore = AliMUONESDInterface::NewClusterStore(); |
380 | if (!cStore) return; | |
381 | AliMUONVCluster* hit = cStore->CreateCluster(0,0,0); | |
48217459 | 382 | |
96ebe67e | 383 | // create iterator |
384 | TIter next(tmpTrackRefStore->CreateIterator()); | |
48217459 | 385 | |
96ebe67e | 386 | // loop over tmpTrackRef |
48217459 | 387 | AliMUONTrack* track; |
96ebe67e | 388 | while ( ( track = static_cast<AliMUONTrack*>(next()) ) ) { |
389 | ||
390 | AliMUONTrack newTrack; | |
391 | ||
392 | // loop over tmpTrackRef's hits | |
393 | Int_t iHit1 = 0; | |
394 | Int_t nTrackHits = track->GetNClusters(); | |
395 | while (iHit1 < nTrackHits) { | |
396 | AliMUONTrackParam *trackParam1 = (AliMUONTrackParam*) track->GetTrackParamAtCluster()->UncheckedAt(iHit1); | |
397 | ||
398 | // get track parameters at hit1 | |
399 | x1 = trackParam1->GetNonBendingCoor(); | |
400 | y1 = trackParam1->GetBendingCoor(); | |
401 | z1 = trackParam1->GetZ(); | |
402 | pX1 = trackParam1->Px(); | |
403 | pY1 = trackParam1->Py(); | |
404 | pZ1 = trackParam1->Pz(); | |
405 | ||
406 | // prepare new track parameters | |
407 | x = x1; | |
408 | y = y1; | |
409 | z = z1; | |
410 | pX = pX1; | |
411 | pY = pY1; | |
412 | pZ = pZ1; | |
413 | ||
414 | // loop over next tmpTrackRef's hits | |
415 | Int_t nCombinedHits = 1; | |
416 | for (Int_t iHit2 = iHit1+1; iHit2 < nTrackHits; iHit2++) { | |
417 | AliMUONTrackParam *trackParam2 = (AliMUONTrackParam*) track->GetTrackParamAtCluster()->UncheckedAt(iHit2); | |
48217459 | 418 | |
96ebe67e | 419 | // get z position of hit2 |
420 | z2 = trackParam2->GetZ(); | |
421 | ||
422 | // complete new track parameters if hit2 is on the same detection element | |
423 | if ( TMath::Abs(z2-z1) < maxGasGap ) { | |
424 | x += trackParam2->GetNonBendingCoor(); | |
425 | y += trackParam2->GetBendingCoor(); | |
426 | z += z2; | |
427 | pX += trackParam2->Px(); | |
428 | pY += trackParam2->Py(); | |
429 | pZ += trackParam2->Pz(); | |
430 | nCombinedHits++; | |
48217459 | 431 | iHit1 = iHit2; |
432 | } | |
433 | ||
96ebe67e | 434 | } |
435 | ||
436 | // finalize new track parameters | |
437 | x /= (Double_t)nCombinedHits; | |
438 | y /= (Double_t)nCombinedHits; | |
439 | z /= (Double_t)nCombinedHits; | |
440 | pX /= (Double_t)nCombinedHits; | |
441 | pY /= (Double_t)nCombinedHits; | |
442 | pZ /= (Double_t)nCombinedHits; | |
443 | bendingSlope = 0; | |
444 | nonBendingSlope = 0; | |
445 | inverseBendingMomentum = 0; | |
446 | if (TMath::Abs(pZ) > 0) { | |
447 | bendingSlope = pY/pZ; | |
448 | nonBendingSlope = pX/pZ; | |
449 | } | |
450 | Double_t pYZ = TMath::Sqrt(pY*pY+pZ*pZ); | |
451 | if (pYZ >0) inverseBendingMomentum = 1/pYZ; | |
452 | inverseBendingMomentum *= trackParam1->GetCharge(); | |
b8dc484b | 453 | |
96ebe67e | 454 | // set hit parameters |
c59f70b9 | 455 | hit->SetUniqueID(trackParam1->GetClusterPtr()->GetUniqueID()); |
103e6575 | 456 | hit->SetXYZ(x,y,z); |
457 | hit->SetErrXY(0.,0.); | |
48217459 | 458 | |
96ebe67e | 459 | // set new track parameters at new hit |
460 | AliMUONTrackParam trackParam; | |
461 | trackParam.SetNonBendingCoor(x); | |
462 | trackParam.SetBendingCoor(y); | |
463 | trackParam.SetZ(z); | |
464 | trackParam.SetBendingSlope(bendingSlope); | |
465 | trackParam.SetNonBendingSlope(nonBendingSlope); | |
466 | trackParam.SetInverseBendingMomentum(inverseBendingMomentum); | |
467 | ||
468 | // add track parameters at current hit to the track | |
103e6575 | 469 | newTrack.AddTrackParamAtCluster(trackParam, *hit, kTRUE); |
b8dc484b | 470 | |
471 | iHit1++; | |
96ebe67e | 472 | } |
48217459 | 473 | |
96ebe67e | 474 | newTrack.SetTrackID(track->GetTrackID()); |
475 | newTrack.SetTrackParamAtVertex(track->GetTrackParamAtVertex()); | |
476 | fTrackRefStore->Add(newTrack); | |
b8dc484b | 477 | |
96ebe67e | 478 | } |
b8dc484b | 479 | |
103e6575 | 480 | delete hit; |
481 | delete cStore; | |
b8dc484b | 482 | } |
483 | ||
484 | //_____________________________________________________________________________ | |
96ebe67e | 485 | void AliMUONRecoCheck::MakeReconstructibleTracks() |
b8dc484b | 486 | { |
61fed964 | 487 | /// Isolate the reconstructible tracks |
103e6575 | 488 | if (!(fRecoTrackRefStore = AliMUONESDInterface::NewTrackStore())) return; |
48217459 | 489 | |
96ebe67e | 490 | // create iterator on trackRef |
491 | TIter next(fTrackRefStore->CreateIterator()); | |
b8dc484b | 492 | |
96ebe67e | 493 | // loop over trackRef |
48217459 | 494 | AliMUONTrack* track; |
96ebe67e | 495 | while ( ( track = static_cast<AliMUONTrack*>(next()) ) ) { |
496 | ||
497 | Bool_t* chamberInTrack = new Bool_t(AliMUONConstants::NTrackingCh()); | |
498 | for (Int_t iCh = 0; iCh < AliMUONConstants::NTrackingCh(); iCh++) chamberInTrack[iCh] = kFALSE; | |
48217459 | 499 | |
96ebe67e | 500 | // loop over trackRef's hits to get hit chambers |
501 | Int_t nTrackHits = track->GetNClusters(); | |
502 | for (Int_t iHit = 0; iHit < nTrackHits; iHit++) { | |
503 | AliMUONVCluster* hit = ((AliMUONTrackParam*) track->GetTrackParamAtCluster()->UncheckedAt(iHit))->GetClusterPtr(); | |
504 | chamberInTrack[hit->GetChamberId()] = kTRUE; | |
cc056de1 | 505 | } |
96ebe67e | 506 | |
cc056de1 | 507 | // track is reconstructible if the particle is depositing a hit |
508 | // in the following chamber combinations: | |
96ebe67e | 509 | Bool_t trackOK = kTRUE; |
510 | if (!chamberInTrack[0] && !chamberInTrack[1]) trackOK = kFALSE; | |
511 | if (!chamberInTrack[2] && !chamberInTrack[3]) trackOK = kFALSE; | |
512 | if (!chamberInTrack[4] && !chamberInTrack[5]) trackOK = kFALSE; | |
513 | Int_t nHitsInLastStations = 0; | |
514 | for (Int_t iCh = 6; iCh < AliMUONConstants::NTrackingCh(); iCh++) | |
515 | if (chamberInTrack[iCh]) nHitsInLastStations++; | |
516 | if(nHitsInLastStations < 3) trackOK = kFALSE; | |
48217459 | 517 | |
96ebe67e | 518 | // Add reconstructible tracks to fRecoTrackRefStore |
519 | if (trackOK) fRecoTrackRefStore->Add(*track); | |
48217459 | 520 | |
96ebe67e | 521 | delete [] chamberInTrack; |
b8dc484b | 522 | } |
48217459 | 523 | |
b8dc484b | 524 | } |
525 |