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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
16/* $Id$ */
17
18//-----------------------------------------------------------------------------
19/// \class AliMUONRecoCheck
20/// Utility class to check reconstruction
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.
24//-----------------------------------------------------------------------------
25
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>
31// 25 Jan 2008:
32// Use the new ESDInterface to create MUON objects from ESD data
33// - Philippe Pillot
34//
35
36#include "AliMUONRecoCheck.h"
37#include "AliMUONTrack.h"
38#include "AliMUONVTrackStore.h"
39#include "AliMUONVCluster.h"
40#include "AliMUONVClusterStore.h"
41#include "AliMUONConstants.h"
42#include "AliMUONESDInterface.h"
43#include "AliMUONTrackParam.h"
44#include "AliMUONTriggerTrack.h"
45#include "AliMUONVTriggerTrackStore.h"
46#include "AliMUONTriggerStoreV1.h"
47#include "AliMUONLocalTrigger.h"
48#include "AliMCEventHandler.h"
49#include "AliMCEvent.h"
50#include "AliStack.h"
51#include "AliTrackReference.h"
52#include "AliLog.h"
53#include "AliESDEvent.h"
54#include "AliESDMuonTrack.h"
55#include "AliMUONDigitStoreV2S.h"
56#include "AliMUONDigit.h"
57#include "AliMpVSegmentation.h"
58#include "AliMpSegmentation.h"
59#include "AliMpPad.h"
60
61#include "AliGeomManager.h"
62#include "AliCDBManager.h"
63#include "AliMpCDB.h"
64#include "AliMpDDLStore.h"
65#include "AliMUONCDB.h"
66#include "AliMUONGeometryTransformer.h"
67#include "AliMUONTriggerCircuit.h"
68#include "AliMUONVTrackReconstructor.h"
69#include "AliMUONVTriggerStore.h"
70#include "AliMUONCalibrationData.h"
71#include "AliMUONTriggerElectronics.h"
72
73
74#include "TGeoManager.h"
75
76#include <TFile.h>
77#include <TTree.h>
78#include <TParticle.h>
79#include <TParticlePDG.h>
80#include <Riostream.h>
81
82#include "AliMUONRecoCheck.h"
83
84/// \cond CLASSIMP
85ClassImp(AliMUONRecoCheck)
86/// \endcond
87
88//_____________________________________________________________________________
89AliMUONRecoCheck::AliMUONRecoCheck(const Char_t *esdFileName, const Char_t *pathSim)
90: TObject(),
91fMCEventHandler(new AliMCEventHandler()),
92fESDEvent(new AliESDEvent()),
93fESDTree (0x0),
94fESDFile (0x0),
95fCurrentEvent(0),
96fTrackRefStore(0x0),
97fRecoTrackRefStore(0x0),
98fRecoTriggerRefStore(0x0),
99fRecoTrackStore(0x0),
100fRecoTriggerTrackStore(0x0),
101fGeometryTransformer(0x0),
102fTriggerCircuit(0x0),
103fCalibrationData(0x0),
104fTriggerElectronics(0x0),
105fESDEventOwner(kTRUE)
106{
107 /// Normal ctor
108
109 // TrackRefs and Particules
110 fMCEventHandler->SetInputPath(pathSim);
111 fMCEventHandler->InitIO("");
112
113 // ESD MUON Tracks
114 fESDFile = TFile::Open(esdFileName); // open the file
115 if (!fESDFile || !fESDFile->IsOpen()) {
116 AliError(Form("opening ESD file %s failed", esdFileName));
117 fESDFile = 0x0;
118 return;
119 }
120 fESDTree = (TTree*) fESDFile->Get("esdTree"); // get the tree
121 if (!fESDTree) {
122 AliError("no ESD tree found");
123 fESDFile->Close();
124 fESDFile = 0x0;
125 return;
126 }
127 fESDEvent->ReadFromTree(fESDTree); // link fESDEvent to the tree
128}
129
130//_____________________________________________________________________________
131AliMUONRecoCheck::AliMUONRecoCheck(AliESDEvent *esdEvent, AliMCEventHandler *mcEventHandler)
132: TObject(),
133fMCEventHandler(0),
134fESDEvent(0),
135fESDTree (0x0),
136fESDFile (0x0),
137fCurrentEvent(0),
138fTrackRefStore(0x0),
139fRecoTrackRefStore(0x0),
140fRecoTriggerRefStore(0x0),
141fRecoTrackStore(0x0),
142fRecoTriggerTrackStore(0x0),
143fGeometryTransformer(0x0),
144fTriggerCircuit(0x0),
145fCalibrationData(0x0),
146fTriggerElectronics(0x0),
147fESDEventOwner(kFALSE)
148{
149 /// Normal ctor
150
151 // TrackRefs and Particules
152 fMCEventHandler = mcEventHandler;
153
154 // ESD MUON Tracks
155 fESDEvent = esdEvent;
156}
157
158//_____________________________________________________________________________
159AliMUONRecoCheck::~AliMUONRecoCheck()
160{
161 /// Destructor
162 if (fESDEventOwner) {
163 delete fMCEventHandler;
164 delete fESDEvent;
165 if (fESDFile) fESDFile->Close();
166 }
167 ResetStores();
168 delete fGeometryTransformer;
169 delete fTriggerCircuit;
170 delete fTriggerElectronics;
171 delete fCalibrationData;
172}
173
174//_____________________________________________________________________________
175void AliMUONRecoCheck::ResetStores()
176{
177 /// Deletes all the store objects that have been created and resets the pointers to 0x0
178 delete fTrackRefStore; fTrackRefStore = 0x0;
179 delete fRecoTrackRefStore; fRecoTrackRefStore = 0x0;
180 delete fRecoTriggerRefStore; fRecoTriggerRefStore = 0x0;
181 delete fRecoTrackStore; fRecoTrackStore = 0x0;
182 delete fRecoTriggerTrackStore; fRecoTriggerTrackStore = 0x0;
183}
184
185//_____________________________________________________________________________
186Bool_t AliMUONRecoCheck::InitCircuit()
187{
188
189 if ( fTriggerCircuit ) return kTRUE;
190
191 if ( ! InitGeometryTransformer() ) return kFALSE;
192
193 fTriggerCircuit = new AliMUONTriggerCircuit(fGeometryTransformer);
194
195 // reset tracker for local trigger to trigger track conversion
196 if ( ! AliMUONESDInterface::GetTracker() )
197 AliMUONESDInterface::ResetTracker();
198
199 return kTRUE;
200}
201
202
203//_____________________________________________________________________________
204Int_t AliMUONRecoCheck::GetRunNumber()
205{
206 /// Return the run number of the current ESD event
207
208 if (fESDEventOwner && fRecoTrackStore == 0x0 && fRecoTriggerTrackStore == 0x0) {
209 if (!fESDTree || fESDTree->GetEvent(fCurrentEvent) <= 0) {
210 AliError(Form("fails to read ESD object for event %d: cannot get the run number",fCurrentEvent));
211 return -1;
212 }
213 }
214
215 return fESDEvent->GetRunNumber();
216}
217
218//_____________________________________________________________________________
219Int_t AliMUONRecoCheck::NumberOfEvents() const
220{
221 /// Return the number of events
222 if (fESDEventOwner && fESDTree) return fESDTree->GetEntries();
223 return 0;
224}
225
226//_____________________________________________________________________________
227AliMUONVTrackStore* AliMUONRecoCheck::ReconstructedTracks(Int_t event, Bool_t refit)
228{
229 /// Return a track store containing the reconstructed tracks (converted into
230 /// MUONTrack objects) for a given event.
231 /// Track parameters at each clusters are computed or not depending on the flag "refit".
232 /// If not, only the track parameters at first cluster are valid.
233
234 if (!fESDEventOwner) {
235 if (fRecoTrackStore == 0x0) MakeReconstructedTracks(refit);
236 return fRecoTrackStore;
237 }
238
239 if (event != fCurrentEvent) {
240 ResetStores();
241 fCurrentEvent = event;
242 }
243
244 if (fRecoTrackStore != 0x0) return fRecoTrackStore;
245 else {
246 if (!fESDTree) return 0x0;
247 if (fESDTree->GetEvent(event) <= 0) {
248 AliError(Form("fails to read ESD object for event %d", event));
249 return 0x0;
250 }
251 MakeReconstructedTracks(refit);
252 return fRecoTrackStore;
253 }
254}
255
256
257//_____________________________________________________________________________
258AliMUONVTriggerTrackStore* AliMUONRecoCheck::TriggeredTracks(Int_t event)
259{
260 /// Return a track store containing the reconstructed trigger tracks (converted into
261 /// MUONTriggerTrack objects) for a given event.
262
263 if (!fESDEventOwner) {
264 if (fRecoTriggerTrackStore == 0x0) MakeTriggeredTracks();
265 return fRecoTriggerTrackStore;
266 }
267
268 if (event != fCurrentEvent) {
269 ResetStores();
270 fCurrentEvent = event;
271 }
272
273 if (fRecoTriggerTrackStore != 0x0) return fRecoTriggerTrackStore;
274 else {
275 if (!fESDTree) return 0x0;
276 if (fESDTree->GetEvent(event) <= 0) {
277 AliError(Form("fails to read ESD object for event %d", event));
278 return 0x0;
279 }
280 MakeTriggeredTracks();
281 return fRecoTriggerTrackStore;
282 }
283}
284
285
286//_____________________________________________________________________________
287AliMUONVTrackStore* AliMUONRecoCheck::TrackRefs(Int_t event)
288{
289 /// Return a track store containing the track references (converted into
290 /// MUONTrack objects) for a given event
291
292 if (!fESDEventOwner) {
293 if (fTrackRefStore == 0x0) MakeTrackRefs();
294 return fTrackRefStore;
295 }
296
297 if (event != fCurrentEvent) {
298 ResetStores();
299 fCurrentEvent = event;
300 }
301
302 if (fTrackRefStore != 0x0) return fTrackRefStore;
303 else {
304 if (!fMCEventHandler->LoadEvent(event)) {
305 AliError(Form("fails to read MC objects for event %d", event));
306 return 0x0;
307 }
308 MakeTrackRefs();
309 return fTrackRefStore;
310 }
311}
312
313//_____________________________________________________________________________
314AliMUONVTriggerTrackStore* AliMUONRecoCheck::TriggerableTracks(Int_t event)
315{
316 /// Return a trigger track store containing the triggerable track references (converted into
317 /// AliMUONTriggerTrack objects) for a given event
318
319 if (!fESDEventOwner) {
320 if (fRecoTriggerRefStore == 0x0) MakeTriggerableTracks();
321 return fRecoTriggerRefStore;
322 }
323
324 if (event != fCurrentEvent) {
325 ResetStores();
326 fCurrentEvent = event;
327 }
328
329 if (fRecoTriggerRefStore != 0x0) return fRecoTriggerRefStore;
330 else {
331 if (!fMCEventHandler->LoadEvent(event)) {
332 AliError(Form("fails to read MC objects for event %d", event));
333 return 0x0;
334 }
335 MakeTriggerableTracks();
336 return fRecoTriggerRefStore;
337 }
338}
339
340
341//_____________________________________________________________________________
342AliMUONVTrackStore* AliMUONRecoCheck::ReconstructibleTracks(Int_t event, UInt_t requestedStationMask,
343 Bool_t request2ChInSameSt45, Bool_t hitInFrontOfPad)
344{
345 /// Return a track store containing the reconstructible tracks for a given event,
346 /// according to the mask of requested stations and the minimum number of chambers hit in stations 4 & 5.
347
348 if (!fESDEventOwner) {
349 if (fRecoTrackRefStore == 0x0) {
350 if (TrackRefs(event) == 0x0) return 0x0;
351 MakeReconstructibleTracks(requestedStationMask, request2ChInSameSt45, hitInFrontOfPad);
352 }
353 return fRecoTrackRefStore;
354 }
355
356 if (event != fCurrentEvent) {
357 ResetStores();
358 fCurrentEvent = event;
359 }
360
361 if (fRecoTrackRefStore != 0x0) return fRecoTrackRefStore;
362 else {
363 if (TrackRefs(event) == 0x0) return 0x0;
364 MakeReconstructibleTracks(requestedStationMask, request2ChInSameSt45, hitInFrontOfPad);
365 return fRecoTrackRefStore;
366 }
367}
368
369
370//_____________________________________________________________________________
371void AliMUONRecoCheck::MakeReconstructedTracks(Bool_t refit)
372{
373 /// Make reconstructed tracks
374 if (!(fRecoTrackStore = AliMUONESDInterface::NewTrackStore())) return;
375
376 // loop over all reconstructed tracks and add them to the store (skip ghosts)
377 Int_t nTracks = (Int_t) fESDEvent->GetNumberOfMuonTracks();
378 for (Int_t iTrack = 0; iTrack < nTracks; iTrack++) {
379 AliESDMuonTrack* esdTrack = fESDEvent->GetMuonTrack(iTrack);
380 if (esdTrack->ContainTrackerData()) AliMUONESDInterface::Add(*esdTrack, *fRecoTrackStore, refit);
381 }
382
383}
384
385
386//_____________________________________________________________________________
387void AliMUONRecoCheck::MakeTriggeredTracks()
388{
389 /// Make reconstructed trigger tracks
390 if (!(fRecoTriggerTrackStore = AliMUONESDInterface::NewTriggerTrackStore())) return;
391
392 AliMUONVTriggerStore* tmpTriggerStore = AliMUONESDInterface::NewTriggerStore();
393 if ( ! tmpTriggerStore ) return;
394
395 // loop over all reconstructed tracks and add them to the store (include ghosts)
396 Int_t nTracks = (Int_t) fESDEvent->GetNumberOfMuonTracks();
397 for (Int_t iTrack = 0; iTrack < nTracks; iTrack++) {
398 AliESDMuonTrack* esdTrack = fESDEvent->GetMuonTrack(iTrack);
399 if (esdTrack->ContainTriggerData()) AliMUONESDInterface::Add(*esdTrack, *tmpTriggerStore);
400 }
401
402 if ( InitCircuit() ) {
403
404 AliMUONVTrackReconstructor* tracker = AliMUONESDInterface::GetTracker();
405 tracker->EventReconstructTrigger(*fTriggerCircuit, *tmpTriggerStore, *fRecoTriggerTrackStore);
406 }
407
408 delete tmpTriggerStore;
409}
410
411//_____________________________________________________________________________
412void AliMUONRecoCheck::TriggerToTrack(const AliMUONLocalTrigger& locTrg, AliMUONTriggerTrack& triggerTrack)
413{
414 /// Make trigger track from local trigger info
415 if ( ! InitCircuit() ) return;
416 AliMUONVTrackReconstructor* tracker = AliMUONESDInterface::GetTracker();
417 tracker->TriggerToTrack(*fTriggerCircuit, locTrg, triggerTrack);
418}
419
420
421//_____________________________________________________________________________
422void AliMUONRecoCheck::MakeTrackRefs()
423{
424 /// Make reconstructible tracks
425 AliMUONVTrackStore *tmpTrackRefStore = AliMUONESDInterface::NewTrackStore();
426 if (!tmpTrackRefStore) return;
427
428 Double_t x, y, z, pX, pY, pZ, bendingSlope, nonBendingSlope, inverseBendingMomentum;
429 TParticle* particle;
430 TClonesArray* trackRefs;
431 Int_t nTrackRef = fMCEventHandler->MCEvent()->GetNumberOfTracks();
432 AliMUONVCluster* hit = AliMUONESDInterface::NewCluster();
433
434 // loop over simulated tracks
435 for (Int_t iTrackRef = 0; iTrackRef < nTrackRef; ++iTrackRef) {
436 Int_t nHits = fMCEventHandler->GetParticleAndTR(iTrackRef, particle, trackRefs);
437
438 // skip empty trackRefs
439 if (nHits < 1) continue;
440
441 // get the particle charge for further calculation
442 TParticlePDG* ppdg = particle->GetPDG();
443 Int_t charge = ppdg != NULL ? (Int_t)(ppdg->Charge()/3.0) : 0;
444
445 AliMUONTrack track;
446
447 // loop over simulated track hits
448 for (Int_t iHit = 0; iHit < nHits; ++iHit) {
449 AliTrackReference* trackReference = static_cast<AliTrackReference*>(trackRefs->UncheckedAt(iHit));
450
451 // skip trackRefs not in MUON
452 if (trackReference->DetectorId() != AliTrackReference::kMUON) continue;
453
454 // Get track parameters of current hit
455 x = trackReference->X();
456 y = trackReference->Y();
457 z = trackReference->Z();
458 pX = trackReference->Px();
459 pY = trackReference->Py();
460 pZ = trackReference->Pz();
461
462 // check chamberId of current trackReference
463 Int_t detElemId = trackReference->UserId();
464 Int_t chamberId = detElemId / 100 - 1;
465 if (chamberId < 0 || chamberId >= AliMUONConstants::NTrackingCh()) continue;
466
467 // set hit parameters
468 hit->SetUniqueID(AliMUONVCluster::BuildUniqueID(chamberId, detElemId, iHit));
469 hit->SetXYZ(x,y,z);
470 hit->SetErrXY(0.,0.);
471
472 // compute track parameters at hit
473 bendingSlope = 0;
474 nonBendingSlope = 0;
475 inverseBendingMomentum = 0;
476 if (TMath::Abs(pZ) > 0) {
477 bendingSlope = pY/pZ;
478 nonBendingSlope = pX/pZ;
479 }
480 Double_t pYZ = TMath::Sqrt(pY*pY+pZ*pZ);
481 if (pYZ >0) inverseBendingMomentum = 1/pYZ;
482 inverseBendingMomentum *= charge;
483
484 // set track parameters at hit
485 AliMUONTrackParam trackParam;
486 trackParam.SetNonBendingCoor(x);
487 trackParam.SetBendingCoor(y);
488 trackParam.SetZ(z);
489 trackParam.SetBendingSlope(bendingSlope);
490 trackParam.SetNonBendingSlope(nonBendingSlope);
491 trackParam.SetInverseBendingMomentum(inverseBendingMomentum);
492
493 // add track parameters at current hit to the track
494 track.AddTrackParamAtCluster(trackParam, *hit, kTRUE);
495 }
496
497 // if none of the track hits was in MUON, goto the next track
498 if (track.GetNClusters() < 1) continue;
499
500 // get track parameters at particle's vertex
501 x = particle->Vx();
502 y = particle->Vy();
503 z = particle->Vz();
504 pX = particle->Px();
505 pY = particle->Py();
506 pZ = particle->Pz();
507
508 // compute rest of track parameters at particle's vertex
509 bendingSlope = 0;
510 nonBendingSlope = 0;
511 inverseBendingMomentum = 0;
512 if (TMath::Abs(pZ) > 0) {
513 bendingSlope = pY/pZ;
514 nonBendingSlope = pX/pZ;
515 }
516 Double_t pYZ = TMath::Sqrt(pY*pY+pZ*pZ);
517 if (pYZ >0) inverseBendingMomentum = 1/pYZ;
518 inverseBendingMomentum *= charge;
519
520 // set track parameters at particle's vertex
521 AliMUONTrackParam trackParamAtVertex;
522 trackParamAtVertex.SetNonBendingCoor(x);
523 trackParamAtVertex.SetBendingCoor(y);
524 trackParamAtVertex.SetZ(z);
525 trackParamAtVertex.SetBendingSlope(bendingSlope);
526 trackParamAtVertex.SetNonBendingSlope(nonBendingSlope);
527 trackParamAtVertex.SetInverseBendingMomentum(inverseBendingMomentum);
528
529 // add track parameters at vertex
530 track.SetTrackParamAtVertex(&trackParamAtVertex);
531
532 // store the track
533 track.SetUniqueID(iTrackRef);
534 tmpTrackRefStore->Add(track);
535 }
536
537 CleanMuonTrackRef(tmpTrackRefStore);
538
539 delete hit;
540 delete tmpTrackRefStore;
541}
542
543//_____________________________________________________________________________
544void AliMUONRecoCheck::MakeTriggerableTracks()
545{
546 /// Make triggerable tracks
547 if (!(fRecoTriggerRefStore = AliMUONESDInterface::NewTriggerTrackStore()))
548 return;
549
550 Double_t x, y, z, slopeX, slopeY, pZ, xLoc, yLoc, zLoc;
551 TParticle* particle;
552 TClonesArray* trackRefs;
553 Int_t nTrackRef = fMCEventHandler->MCEvent()->GetNumberOfTracks();
554
555 // loop over simulated tracks
556 for (Int_t iTrackRef = 0; iTrackRef < nTrackRef; ++iTrackRef) {
557 Int_t nHits = fMCEventHandler->GetParticleAndTR(iTrackRef, particle, trackRefs);
558
559 // skip empty trackRefs
560 if (nHits < 1) continue;
561
562 AliMUONTriggerTrack track;
563 AliMUONDigitStoreV2S digitStore;
564 Int_t hitsOnTrigger = 0;
565 Int_t currCh = -1;
566
567 // loop over simulated track hits
568 for (Int_t iHit = 0; iHit < nHits; ++iHit) {
569 AliTrackReference* trackReference = static_cast<AliTrackReference*>(trackRefs->UncheckedAt(iHit));
570
571 // skip trackRefs not in MUON
572 if (trackReference->DetectorId() != AliTrackReference::kMUON) continue;
573
574 // check chamberId of current trackReference
575 Int_t detElemId = trackReference->UserId();
576 Int_t chamberId = detElemId / 100 - 1;
577 if (chamberId < AliMUONConstants::NTrackingCh() || chamberId >= AliMUONConstants::NCh() ) continue;
578
579 // Get track parameters of current hit
580 x = trackReference->X();
581 y = trackReference->Y();
582 z = trackReference->Z();
583
584 if ( InitTriggerResponse() ) {
585 fGeometryTransformer->Global2Local(detElemId, x, y, z, xLoc, yLoc, zLoc);
586
587 Int_t nboard = 0;
588 for ( Int_t cath = AliMp::kCath0; cath <= AliMp::kCath1; ++cath )
589 {
590 const AliMpVSegmentation* seg
591 = AliMpSegmentation::Instance()
592 ->GetMpSegmentation(detElemId,AliMp::GetCathodType(cath));
593
594 AliMpPad pad = seg->PadByPosition(xLoc,yLoc,kFALSE);
595 Int_t ix = pad.GetIx();
596 Int_t iy = pad.GetIy();
597
598 if ( !pad.IsValid() ) continue;
599
600 if ( cath == AliMp::kCath0 ) nboard = pad.GetLocalBoardId(0);
601
602 AliMUONDigit* digit = new AliMUONDigit(detElemId,nboard,
603 pad.GetLocalBoardChannel(0),cath);
604 digit->SetPadXY(ix,iy);
605 digit->SetCharge(1.);
606 digitStore.Add(*digit,AliMUONVDigitStore::kDeny);
607 }
608 }
609
610 if ( hitsOnTrigger == 0 ) {
611 pZ = trackReference->Pz();
612 slopeX = ( pZ == 0. ) ? 99999. : trackReference->Px() / pZ;
613 slopeY = ( pZ == 0. ) ? 99999. : trackReference->Py() / pZ;
614
615 track.SetX11(x);
616 track.SetY11(y);
617 track.SetZ11(z);
618 track.SetSlopeX(slopeX);
619 track.SetSlopeY(slopeY);
620 }
621
622 if ( currCh != chamberId ) {
623 hitsOnTrigger++;
624 currCh = chamberId;
625 }
626
627 } // loop on hits
628
629 if ( hitsOnTrigger < 3 ) continue;
630
631 // Check if the track passes the trigger algorithm
632 if ( InitTriggerResponse() ) {
633 AliMUONTriggerStoreV1 triggerStore;
634 fTriggerElectronics->Digits2Trigger(digitStore,triggerStore);
635
636 TIter next(triggerStore.CreateIterator());
637 AliMUONLocalTrigger* locTrg(0x0);
638
639 Int_t ptCutLevel = 0;
640
641 while ( ( locTrg = static_cast<AliMUONLocalTrigger*>(next()) ) )
642 {
643 if ( locTrg->IsTrigX() && locTrg->IsTrigY() )
644 {
645 ptCutLevel = TMath::Max(ptCutLevel, 1);
646 if ( locTrg->LoHpt() ) ptCutLevel = TMath::Max(ptCutLevel, 3);
647 else if ( locTrg->LoLpt() ) ptCutLevel = TMath::Max(ptCutLevel, 2);
648 } // board is fired
649 } // end of loop on Local Trigger
650 track.SetPtCutLevel(ptCutLevel);
651 }
652 track.SetUniqueID(iTrackRef);
653 fRecoTriggerRefStore->Add(track);
654 }
655}
656
657
658//_____________________________________________________________________________
659void AliMUONRecoCheck::CleanMuonTrackRef(const AliMUONVTrackStore *tmpTrackRefStore)
660{
661 /// Re-calculate hits parameters because two AliTrackReferences are recorded for
662 /// each chamber (one when particle is entering + one when particle is leaving
663 /// the sensitive volume)
664 if (!(fTrackRefStore = AliMUONESDInterface::NewTrackStore())) return;
665
666 Double_t maxGasGap = 1.; // cm
667 Double_t x, y, z, pX, pY, pZ, x1, y1, z1, pX1, pY1, pZ1, z2;
668 Double_t bendingSlope,nonBendingSlope,inverseBendingMomentum;
669 AliMUONVCluster* hit = AliMUONESDInterface::NewCluster();
670
671 // create iterator
672 TIter next(tmpTrackRefStore->CreateIterator());
673
674 // loop over tmpTrackRef
675 AliMUONTrack* track;
676 while ( ( track = static_cast<AliMUONTrack*>(next()) ) ) {
677
678 AliMUONTrack newTrack;
679
680 // loop over tmpTrackRef's hits
681 Int_t iHit1 = 0;
682 Int_t nTrackHits = track->GetNClusters();
683 while (iHit1 < nTrackHits) {
684 AliMUONTrackParam *trackParam1 = (AliMUONTrackParam*) track->GetTrackParamAtCluster()->UncheckedAt(iHit1);
685
686 // get track parameters at hit1
687 x1 = trackParam1->GetNonBendingCoor();
688 y1 = trackParam1->GetBendingCoor();
689 z1 = trackParam1->GetZ();
690 pX1 = trackParam1->Px();
691 pY1 = trackParam1->Py();
692 pZ1 = trackParam1->Pz();
693
694 // prepare new track parameters
695 x = x1;
696 y = y1;
697 z = z1;
698 pX = pX1;
699 pY = pY1;
700 pZ = pZ1;
701
702 // loop over next tmpTrackRef's hits
703 Int_t nCombinedHits = 1;
704 for (Int_t iHit2 = iHit1+1; iHit2 < nTrackHits; iHit2++) {
705 AliMUONTrackParam *trackParam2 = (AliMUONTrackParam*) track->GetTrackParamAtCluster()->UncheckedAt(iHit2);
706
707 // get z position of hit2
708 z2 = trackParam2->GetZ();
709
710 // complete new track parameters if hit2 is on the same detection element
711 if ( TMath::Abs(z2-z1) < maxGasGap ) {
712 x += trackParam2->GetNonBendingCoor();
713 y += trackParam2->GetBendingCoor();
714 z += z2;
715 pX += trackParam2->Px();
716 pY += trackParam2->Py();
717 pZ += trackParam2->Pz();
718 nCombinedHits++;
719 iHit1 = iHit2;
720 }
721
722 }
723
724 // finalize new track parameters
725 x /= (Double_t)nCombinedHits;
726 y /= (Double_t)nCombinedHits;
727 z /= (Double_t)nCombinedHits;
728 pX /= (Double_t)nCombinedHits;
729 pY /= (Double_t)nCombinedHits;
730 pZ /= (Double_t)nCombinedHits;
731 bendingSlope = 0;
732 nonBendingSlope = 0;
733 inverseBendingMomentum = 0;
734 if (TMath::Abs(pZ) > 0) {
735 bendingSlope = pY/pZ;
736 nonBendingSlope = pX/pZ;
737 }
738 Double_t pYZ = TMath::Sqrt(pY*pY+pZ*pZ);
739 if (pYZ >0) inverseBendingMomentum = 1/pYZ;
740 inverseBendingMomentum *= trackParam1->GetCharge();
741
742 // set hit parameters
743 hit->SetUniqueID(trackParam1->GetClusterPtr()->GetUniqueID());
744 hit->SetXYZ(x,y,z);
745 hit->SetErrXY(0.,0.);
746
747 // set new track parameters at new hit
748 AliMUONTrackParam trackParam;
749 trackParam.SetNonBendingCoor(x);
750 trackParam.SetBendingCoor(y);
751 trackParam.SetZ(z);
752 trackParam.SetBendingSlope(bendingSlope);
753 trackParam.SetNonBendingSlope(nonBendingSlope);
754 trackParam.SetInverseBendingMomentum(inverseBendingMomentum);
755
756 // add track parameters at current hit to the track
757 newTrack.AddTrackParamAtCluster(trackParam, *hit, kTRUE);
758
759 iHit1++;
760 }
761
762 newTrack.SetUniqueID(track->GetUniqueID());
763 newTrack.SetTrackParamAtVertex(track->GetTrackParamAtVertex());
764 fTrackRefStore->Add(newTrack);
765
766 }
767
768 delete hit;
769}
770
771//_____________________________________________________________________________
772void AliMUONRecoCheck::MakeReconstructibleTracks(UInt_t requestedStationMask, Bool_t request2ChInSameSt45,
773 Bool_t hitInFrontOfPad)
774{
775 /// Isolate the reconstructible tracks
776 if (!(fRecoTrackRefStore = AliMUONESDInterface::NewTrackStore())) return;
777
778 // need geometry transformer and segmentation to check if trackrefs are located in front of pad(s)
779 if (hitInFrontOfPad) {
780 if (!InitGeometryTransformer()) return;
781 if (!AliMpSegmentation::Instance(kFALSE) && !AliMUONCDB::LoadMapping(kTRUE)) return;
782 }
783
784 // create iterator on trackRef
785 TIter next(fTrackRefStore->CreateIterator());
786
787 // loop over trackRef and add reconstructible tracks to fRecoTrackRefStore
788 AliMUONTrack* track;
789 while ( ( track = static_cast<AliMUONTrack*>(next()) ) ) {
790
791 // check if the track is valid as it is
792 if (track->IsValid(requestedStationMask, request2ChInSameSt45)) {
793
794 if (hitInFrontOfPad) {
795
796 AliMUONTrack trackTmp(*track);
797
798 // loop over clusters and remove those which are not in front of pad(s)
799 AliMUONTrackParam *param = static_cast<AliMUONTrackParam*>(trackTmp.GetTrackParamAtCluster()->First());
800 while (param) {
801 AliMUONTrackParam *nextParam = static_cast<AliMUONTrackParam*>(trackTmp.GetTrackParamAtCluster()->After(param));
802 if (!IsHitInFrontOfPad(param)) trackTmp.RemoveTrackParamAtCluster(param);
803 param = nextParam;
804 }
805
806 // add the track if it is still valid
807 if (trackTmp.IsValid(requestedStationMask, request2ChInSameSt45)) fRecoTrackRefStore->Add(trackTmp);
808
809 } else {
810
811 // add the track
812 fRecoTrackRefStore->Add(*track);
813
814 }
815
816 }
817
818 }
819
820}
821
822//_____________________________________________________________________________
823AliMUONTrack* AliMUONRecoCheck::FindCompatibleTrack(AliMUONTrack &track, AliMUONVTrackStore &trackStore,
824 Int_t &nMatchClusters, Bool_t useLabel, Double_t sigmaCut)
825{
826 /// Return the track from the store matched with the given track (or 0x0) and the number of matched clusters.
827 /// Matching is done by using the MC label of by comparing cluster/TrackRef positions according to the flag "useLabel".
828 /// WARNING: Who match who matters since the matching algorithm uses the *fraction* of matched clusters of the given track
829
830 AliMUONTrack *matchedTrack = 0x0;
831 nMatchClusters = 0;
832
833 if (useLabel) { // by using the MC label
834
835 // get the corresponding simulated track if any
836 Int_t label = track.GetMCLabel();
837 matchedTrack = (AliMUONTrack*) trackStore.FindObject(label);
838
839 // get the fraction of matched clusters
840 if (matchedTrack) {
841 Int_t nClusters = track.GetNClusters();
842 for (Int_t iCl = 0; iCl < nClusters; iCl++)
843 if (((AliMUONTrackParam*) track.GetTrackParamAtCluster()->UncheckedAt(iCl))->GetClusterPtr()->GetMCLabel() == label)
844 nMatchClusters++;
845 }
846
847 } else { // by comparing cluster/TrackRef positions
848
849 // look for the corresponding simulated track if any
850 TIter next(trackStore.CreateIterator());
851 AliMUONTrack* track2;
852 while ( ( track2 = static_cast<AliMUONTrack*>(next()) ) ) {
853
854 // check compatibility
855 Int_t n = 0;
856 if (track.Match(*track2, sigmaCut, n)) {
857 matchedTrack = track2;
858 nMatchClusters = n;
859 break;
860 }
861
862 }
863
864 }
865
866 return matchedTrack;
867
868}
869
870
871//_____________________________________________________________________________
872AliMUONTriggerTrack* AliMUONRecoCheck::FindCompatibleTrack(AliMUONTriggerTrack &track, const AliMUONVTriggerTrackStore &triggerTrackStore,
873 Double_t sigmaCut)
874{
875 /// Return the trigger track from the store matched with the given track (or 0x0).
876 /// Matching is done by comparing cluster/TrackRef positions.
877
878 AliMUONTriggerTrack *matchedTrack = 0x0;
879
880 // look for the corresponding simulated track if any
881 TIter next(triggerTrackStore.CreateIterator());
882 AliMUONTriggerTrack* track2;
883 while ( ( track2 = static_cast<AliMUONTriggerTrack*>(next()) ) ) {
884 // check compatibility
885 if (track.Match(*track2, sigmaCut)) {
886 matchedTrack = track2;
887 break;
888 }
889 }
890
891 return matchedTrack;
892
893}
894
895
896//____________________________________________________________________________
897Bool_t AliMUONRecoCheck::InitTriggerResponse()
898{
899 /// Initialize trigger electronics
900 /// for building of triggerable tracks from MC
901
902 if ( fTriggerElectronics ) return kTRUE;
903
904 if ( ! InitGeometryTransformer() ) return kFALSE;
905
906 if ( ! AliMpDDLStore::Instance(false) ) AliMpCDB::LoadDDLStore();
907
908 if ( ! InitCalibrationData() ) return kFALSE;
909
910 fTriggerElectronics = new AliMUONTriggerElectronics(fCalibrationData);
911
912 return kTRUE;
913}
914
915
916//____________________________________________________________________________
917Bool_t AliMUONRecoCheck::InitCalibrationData()
918{
919 /// Initialize calibration data
920 if ( ! fCalibrationData ) {
921 if ( !AliMUONCDB::CheckOCDB() ) return kFALSE;
922 fCalibrationData = new AliMUONCalibrationData(AliCDBManager::Instance()->GetRun());
923 }
924 return kTRUE;
925}
926
927
928//____________________________________________________________________________
929Bool_t AliMUONRecoCheck::InitGeometryTransformer()
930{
931 /// Return geometry transformer
932 /// (create it if necessary)
933 if ( ! fGeometryTransformer ) {
934
935 if ( !AliMUONCDB::CheckOCDB() ) return kFALSE;
936
937 if (!AliGeomManager::GetGeometry()) {
938 AliGeomManager::LoadGeometry();
939 if (!AliGeomManager::GetGeometry()) return kFALSE;
940 if (!AliGeomManager::ApplyAlignObjsFromCDB("MUON")) return kFALSE;
941 }
942
943 fGeometryTransformer = new AliMUONGeometryTransformer();
944 fGeometryTransformer->LoadGeometryData();
945 }
946
947 return kTRUE;
948}
949
950//________________________________________________________________________
951Bool_t AliMUONRecoCheck::IsHitInFrontOfPad(AliMUONTrackParam *param) const
952{
953 /// Return kTRUE if the hit is located in front of at least 1 pad
954
955 Int_t deId = param->GetClusterPtr()->GetDetElemId();
956
957 Double_t xL, yL, zL;
958 fGeometryTransformer->Global2Local(deId, param->GetNonBendingCoor(), param->GetBendingCoor(), param->GetZ(), xL, yL, zL);
959
960 const AliMpVSegmentation* seg1 = AliMpSegmentation::Instance()->GetMpSegmentation(deId, AliMp::kCath0);
961 const AliMpVSegmentation* seg2 = AliMpSegmentation::Instance()->GetMpSegmentation(deId, AliMp::kCath1);
962 if (!seg1 || !seg2) return kFALSE;
963
964 AliMpPad pad1 = seg1->PadByPosition(xL, yL, kFALSE);
965 AliMpPad pad2 = seg2->PadByPosition(xL, yL, kFALSE);
966
967 return (pad1.IsValid() || pad2.IsValid());
968}
969