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 **************************************************************************/
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 //-----------------------------------------------------------------------------
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>
32 // Use the new ESDInterface to create MUON objects from ESD data
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"
51 #include "AliTrackReference.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"
61 #include "AliGeomManager.h"
62 #include "AliCDBManager.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"
74 #include "TGeoManager.h"
78 #include <TParticle.h>
79 #include <TParticlePDG.h>
80 #include <Riostream.h>
82 #include "AliMUONRecoCheck.h"
85 ClassImp(AliMUONRecoCheck)
88 //_____________________________________________________________________________
89 AliMUONRecoCheck::AliMUONRecoCheck(const Char_t *esdFileName, const Char_t *pathSim)
91 fMCEventHandler(new AliMCEventHandler()),
92 fESDEvent(new AliESDEvent()),
97 fRecoTrackRefStore(0x0),
98 fRecoTriggerRefStore(0x0),
100 fRecoTriggerTrackStore(0x0),
101 fGeometryTransformer(0x0),
102 fTriggerCircuit(0x0),
103 fCalibrationData(0x0),
104 fTriggerElectronics(0x0),
105 fESDEventOwner(kTRUE)
109 // TrackRefs and Particules
110 fMCEventHandler->SetInputPath(pathSim);
111 fMCEventHandler->InitIO("");
114 fESDFile = TFile::Open(esdFileName); // open the file
115 if (!fESDFile || !fESDFile->IsOpen()) {
116 AliError(Form("opening ESD file %s failed", esdFileName));
120 fESDTree = (TTree*) fESDFile->Get("esdTree"); // get the tree
122 AliError("no ESD tree found");
127 fESDEvent->ReadFromTree(fESDTree); // link fESDEvent to the tree
130 //_____________________________________________________________________________
131 AliMUONRecoCheck::AliMUONRecoCheck(AliESDEvent *esdEvent, AliMCEventHandler *mcEventHandler)
139 fRecoTrackRefStore(0x0),
140 fRecoTriggerRefStore(0x0),
141 fRecoTrackStore(0x0),
142 fRecoTriggerTrackStore(0x0),
143 fGeometryTransformer(0x0),
144 fTriggerCircuit(0x0),
145 fCalibrationData(0x0),
146 fTriggerElectronics(0x0),
147 fESDEventOwner(kFALSE)
151 // TrackRefs and Particules
152 fMCEventHandler = mcEventHandler;
155 fESDEvent = esdEvent;
158 //_____________________________________________________________________________
159 AliMUONRecoCheck::~AliMUONRecoCheck()
162 if (fESDEventOwner) {
163 delete fMCEventHandler;
165 if (fESDFile) fESDFile->Close();
168 delete fGeometryTransformer;
169 delete fTriggerCircuit;
170 delete fTriggerElectronics;
171 delete fCalibrationData;
174 //_____________________________________________________________________________
175 void AliMUONRecoCheck::ResetStores()
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;
185 //_____________________________________________________________________________
186 Bool_t AliMUONRecoCheck::InitCircuit()
189 if ( fTriggerCircuit ) return kTRUE;
191 if ( ! InitGeometryTransformer() ) return kFALSE;
193 // reset tracker for local trigger to trigger track conversion
194 if ( ! AliMUONESDInterface::GetTracker() ) {
195 AliMUONRecoParam* recoParam = AliMUONCDB::LoadRecoParam();
196 if (!recoParam) return kFALSE;
197 AliMUONESDInterface::ResetTracker(recoParam);
200 fTriggerCircuit = new AliMUONTriggerCircuit(fGeometryTransformer);
206 //_____________________________________________________________________________
207 Int_t AliMUONRecoCheck::GetRunNumber()
209 /// Return the run number of the current ESD event
211 if (fESDEventOwner && fRecoTrackStore == 0x0 && fRecoTriggerTrackStore == 0x0) {
212 if (!fESDTree || fESDTree->GetEvent(fCurrentEvent) <= 0) {
213 AliError(Form("fails to read ESD object for event %d: cannot get the run number",fCurrentEvent));
218 return fESDEvent->GetRunNumber();
221 //_____________________________________________________________________________
222 Int_t AliMUONRecoCheck::NumberOfEvents() const
224 /// Return the number of events
225 if (fESDEventOwner && fESDTree) return fESDTree->GetEntries();
229 //_____________________________________________________________________________
230 AliMUONVTrackStore* AliMUONRecoCheck::ReconstructedTracks(Int_t event, Bool_t refit)
232 /// Return a track store containing the reconstructed tracks (converted into
233 /// MUONTrack objects) for a given event.
234 /// Track parameters at each clusters are computed or not depending on the flag "refit".
235 /// If not, only the track parameters at first cluster are valid.
237 if (!fESDEventOwner) {
238 if (fRecoTrackStore == 0x0) MakeReconstructedTracks(refit);
239 return fRecoTrackStore;
242 if (event != fCurrentEvent) {
244 fCurrentEvent = event;
247 if (fRecoTrackStore != 0x0) return fRecoTrackStore;
249 if (!fESDTree) return 0x0;
250 if (fESDTree->GetEvent(event) <= 0) {
251 AliError(Form("fails to read ESD object for event %d", event));
254 MakeReconstructedTracks(refit);
255 return fRecoTrackStore;
260 //_____________________________________________________________________________
261 AliMUONVTriggerTrackStore* AliMUONRecoCheck::TriggeredTracks(Int_t event)
263 /// Return a track store containing the reconstructed trigger tracks (converted into
264 /// MUONTriggerTrack objects) for a given event.
266 if (!fESDEventOwner) {
267 if (fRecoTriggerTrackStore == 0x0) MakeTriggeredTracks();
268 return fRecoTriggerTrackStore;
271 if (event != fCurrentEvent) {
273 fCurrentEvent = event;
276 if (fRecoTriggerTrackStore != 0x0) return fRecoTriggerTrackStore;
278 if (!fESDTree) return 0x0;
279 if (fESDTree->GetEvent(event) <= 0) {
280 AliError(Form("fails to read ESD object for event %d", event));
283 MakeTriggeredTracks();
284 return fRecoTriggerTrackStore;
289 //_____________________________________________________________________________
290 AliMUONVTrackStore* AliMUONRecoCheck::TrackRefs(Int_t event)
292 /// Return a track store containing the track references (converted into
293 /// MUONTrack objects) for a given event
295 if (!fESDEventOwner) {
296 if (fTrackRefStore == 0x0) MakeTrackRefs();
297 return fTrackRefStore;
300 if (event != fCurrentEvent) {
302 fCurrentEvent = event;
305 if (fTrackRefStore != 0x0) return fTrackRefStore;
307 if (!fMCEventHandler->LoadEvent(event)) {
308 AliError(Form("fails to read MC objects for event %d", event));
312 return fTrackRefStore;
316 //_____________________________________________________________________________
317 AliMUONVTriggerTrackStore* AliMUONRecoCheck::TriggerableTracks(Int_t event)
319 /// Return a trigger track store containing the triggerable track references (converted into
320 /// AliMUONTriggerTrack objects) for a given event
322 if (!fESDEventOwner) {
323 if (fRecoTriggerRefStore == 0x0) MakeTriggerableTracks();
324 return fRecoTriggerRefStore;
327 if (event != fCurrentEvent) {
329 fCurrentEvent = event;
332 if (fRecoTriggerRefStore != 0x0) return fRecoTriggerRefStore;
334 if (!fMCEventHandler->LoadEvent(event)) {
335 AliError(Form("fails to read MC objects for event %d", event));
338 MakeTriggerableTracks();
339 return fRecoTriggerRefStore;
344 //_____________________________________________________________________________
345 AliMUONVTrackStore* AliMUONRecoCheck::ReconstructibleTracks(Int_t event, UInt_t requestedStationMask,
346 Bool_t request2ChInSameSt45, Bool_t hitInFrontOfPad)
348 /// Return a track store containing the reconstructible tracks for a given event,
349 /// according to the mask of requested stations and the minimum number of chambers hit in stations 4 & 5.
351 if (!fESDEventOwner) {
352 if (fRecoTrackRefStore == 0x0) {
353 if (TrackRefs(event) == 0x0) return 0x0;
354 MakeReconstructibleTracks(requestedStationMask, request2ChInSameSt45, hitInFrontOfPad);
356 return fRecoTrackRefStore;
359 if (event != fCurrentEvent) {
361 fCurrentEvent = event;
364 if (fRecoTrackRefStore != 0x0) return fRecoTrackRefStore;
366 if (TrackRefs(event) == 0x0) return 0x0;
367 MakeReconstructibleTracks(requestedStationMask, request2ChInSameSt45, hitInFrontOfPad);
368 return fRecoTrackRefStore;
373 //_____________________________________________________________________________
374 void AliMUONRecoCheck::MakeReconstructedTracks(Bool_t refit)
376 /// Make reconstructed tracks
377 if (!(fRecoTrackStore = AliMUONESDInterface::NewTrackStore())) return;
379 // loop over all reconstructed tracks and add them to the store (skip ghosts)
380 Int_t nTracks = (Int_t) fESDEvent->GetNumberOfMuonTracks();
381 for (Int_t iTrack = 0; iTrack < nTracks; iTrack++) {
382 AliESDMuonTrack* esdTrack = fESDEvent->GetMuonTrack(iTrack);
383 if (esdTrack->ContainTrackerData()) AliMUONESDInterface::Add(*esdTrack, *fRecoTrackStore, refit);
389 //_____________________________________________________________________________
390 void AliMUONRecoCheck::MakeTriggeredTracks()
392 /// Make reconstructed trigger tracks
393 if (!(fRecoTriggerTrackStore = AliMUONESDInterface::NewTriggerTrackStore())) return;
395 AliMUONVTriggerStore* tmpTriggerStore = AliMUONESDInterface::NewTriggerStore();
396 if ( ! tmpTriggerStore ) return;
398 // loop over all reconstructed tracks and add them to the store (include ghosts)
399 Int_t nTracks = (Int_t) fESDEvent->GetNumberOfMuonTracks();
400 for (Int_t iTrack = 0; iTrack < nTracks; iTrack++) {
401 AliESDMuonTrack* esdTrack = fESDEvent->GetMuonTrack(iTrack);
402 if (esdTrack->ContainTriggerData()) AliMUONESDInterface::Add(*esdTrack, *tmpTriggerStore);
405 if ( InitCircuit() ) {
407 AliMUONVTrackReconstructor* tracker = AliMUONESDInterface::GetTracker();
408 tracker->EventReconstructTrigger(*fTriggerCircuit, *tmpTriggerStore, *fRecoTriggerTrackStore);
411 delete tmpTriggerStore;
414 //_____________________________________________________________________________
415 void AliMUONRecoCheck::TriggerToTrack(const AliMUONLocalTrigger& locTrg, AliMUONTriggerTrack& triggerTrack)
417 /// Make trigger track from local trigger info
418 if ( ! InitCircuit() ) return;
419 AliMUONVTrackReconstructor* tracker = AliMUONESDInterface::GetTracker();
420 tracker->TriggerToTrack(*fTriggerCircuit, locTrg, triggerTrack);
424 //_____________________________________________________________________________
425 void AliMUONRecoCheck::MakeTrackRefs()
427 /// Make reconstructible tracks
428 AliMUONVTrackStore *tmpTrackRefStore = AliMUONESDInterface::NewTrackStore();
429 if (!tmpTrackRefStore) return;
431 Double_t x, y, z, pX, pY, pZ, bendingSlope, nonBendingSlope, inverseBendingMomentum;
433 TClonesArray* trackRefs;
434 Int_t nTrackRef = fMCEventHandler->MCEvent()->GetNumberOfTracks();
435 AliMUONVCluster* hit = AliMUONESDInterface::NewCluster();
437 // loop over simulated tracks
438 for (Int_t iTrackRef = 0; iTrackRef < nTrackRef; ++iTrackRef) {
439 Int_t nHits = fMCEventHandler->GetParticleAndTR(iTrackRef, particle, trackRefs);
441 // skip empty trackRefs
442 if (nHits < 1) continue;
444 // get the particle charge for further calculation
445 TParticlePDG* ppdg = particle->GetPDG();
446 Int_t charge = ppdg != NULL ? (Int_t)(ppdg->Charge()/3.0) : 0;
450 // loop over simulated track hits
451 for (Int_t iHit = 0; iHit < nHits; ++iHit) {
452 AliTrackReference* trackReference = static_cast<AliTrackReference*>(trackRefs->UncheckedAt(iHit));
454 // skip trackRefs not in MUON
455 if (trackReference->DetectorId() != AliTrackReference::kMUON) continue;
457 // Get track parameters of current hit
458 x = trackReference->X();
459 y = trackReference->Y();
460 z = trackReference->Z();
461 pX = trackReference->Px();
462 pY = trackReference->Py();
463 pZ = trackReference->Pz();
465 // check chamberId of current trackReference
466 Int_t detElemId = trackReference->UserId();
467 Int_t chamberId = detElemId / 100 - 1;
468 if (chamberId < 0 || chamberId >= AliMUONConstants::NTrackingCh()) continue;
470 // set hit parameters
471 hit->SetUniqueID(AliMUONVCluster::BuildUniqueID(chamberId, detElemId, iHit));
473 hit->SetErrXY(0.,0.);
475 // compute track parameters at hit
478 inverseBendingMomentum = 0;
479 if (TMath::Abs(pZ) > 0) {
480 bendingSlope = pY/pZ;
481 nonBendingSlope = pX/pZ;
483 Double_t pYZ = TMath::Sqrt(pY*pY+pZ*pZ);
484 if (pYZ >0) inverseBendingMomentum = 1/pYZ;
485 inverseBendingMomentum *= charge;
487 // set track parameters at hit
488 AliMUONTrackParam trackParam;
489 trackParam.SetNonBendingCoor(x);
490 trackParam.SetBendingCoor(y);
492 trackParam.SetBendingSlope(bendingSlope);
493 trackParam.SetNonBendingSlope(nonBendingSlope);
494 trackParam.SetInverseBendingMomentum(inverseBendingMomentum);
496 // add track parameters at current hit to the track
497 track.AddTrackParamAtCluster(trackParam, *hit, kTRUE);
500 // if none of the track hits was in MUON, goto the next track
501 if (track.GetNClusters() < 1) continue;
503 // get track parameters at particle's vertex
511 // compute rest of track parameters at particle's vertex
514 inverseBendingMomentum = 0;
515 if (TMath::Abs(pZ) > 0) {
516 bendingSlope = pY/pZ;
517 nonBendingSlope = pX/pZ;
519 Double_t pYZ = TMath::Sqrt(pY*pY+pZ*pZ);
520 if (pYZ >0) inverseBendingMomentum = 1/pYZ;
521 inverseBendingMomentum *= charge;
523 // set track parameters at particle's vertex
524 AliMUONTrackParam trackParamAtVertex;
525 trackParamAtVertex.SetNonBendingCoor(x);
526 trackParamAtVertex.SetBendingCoor(y);
527 trackParamAtVertex.SetZ(z);
528 trackParamAtVertex.SetBendingSlope(bendingSlope);
529 trackParamAtVertex.SetNonBendingSlope(nonBendingSlope);
530 trackParamAtVertex.SetInverseBendingMomentum(inverseBendingMomentum);
532 // add track parameters at vertex
533 track.SetTrackParamAtVertex(&trackParamAtVertex);
536 track.SetUniqueID(iTrackRef);
537 tmpTrackRefStore->Add(track);
540 CleanMuonTrackRef(tmpTrackRefStore);
543 delete tmpTrackRefStore;
546 //_____________________________________________________________________________
547 void AliMUONRecoCheck::MakeTriggerableTracks()
549 /// Make triggerable tracks
550 if (!(fRecoTriggerRefStore = AliMUONESDInterface::NewTriggerTrackStore()))
553 Double_t x, y, z, slopeX, slopeY, pZ, xLoc, yLoc, zLoc;
555 TClonesArray* trackRefs;
556 Int_t nTrackRef = fMCEventHandler->MCEvent()->GetNumberOfTracks();
558 // loop over simulated tracks
559 for (Int_t iTrackRef = 0; iTrackRef < nTrackRef; ++iTrackRef) {
560 Int_t nHits = fMCEventHandler->GetParticleAndTR(iTrackRef, particle, trackRefs);
562 // skip empty trackRefs
563 if (nHits < 1) continue;
565 AliMUONTriggerTrack track;
566 AliMUONDigitStoreV2S digitStore;
567 Int_t hitsOnTrigger = 0;
570 // loop over simulated track hits
571 for (Int_t iHit = 0; iHit < nHits; ++iHit) {
572 AliTrackReference* trackReference = static_cast<AliTrackReference*>(trackRefs->UncheckedAt(iHit));
574 // skip trackRefs not in MUON
575 if (trackReference->DetectorId() != AliTrackReference::kMUON) continue;
577 // check chamberId of current trackReference
578 Int_t detElemId = trackReference->UserId();
579 Int_t chamberId = detElemId / 100 - 1;
580 if (chamberId < AliMUONConstants::NTrackingCh() || chamberId >= AliMUONConstants::NCh() ) continue;
582 // Get track parameters of current hit
583 x = trackReference->X();
584 y = trackReference->Y();
585 z = trackReference->Z();
587 if ( InitTriggerResponse() ) {
588 fGeometryTransformer->Global2Local(detElemId, x, y, z, xLoc, yLoc, zLoc);
591 for ( Int_t cath = AliMp::kCath0; cath <= AliMp::kCath1; ++cath )
593 const AliMpVSegmentation* seg
594 = AliMpSegmentation::Instance()
595 ->GetMpSegmentation(detElemId,AliMp::GetCathodType(cath));
597 AliMpPad pad = seg->PadByPosition(xLoc,yLoc,kFALSE);
598 Int_t ix = pad.GetIx();
599 Int_t iy = pad.GetIy();
601 if ( !pad.IsValid() ) continue;
603 if ( cath == AliMp::kCath0 ) nboard = pad.GetLocalBoardId(0);
605 AliMUONVDigit* digit = digitStore.Add(detElemId, nboard, pad.GetLocalBoardChannel(0),
606 cath, AliMUONVDigitStore::kDeny);
608 digit->SetPadXY(ix,iy);
609 digit->SetCharge(1.);
614 if ( hitsOnTrigger == 0 ) {
615 pZ = trackReference->Pz();
616 slopeX = ( pZ == 0. ) ? 99999. : trackReference->Px() / pZ;
617 slopeY = ( pZ == 0. ) ? 99999. : trackReference->Py() / pZ;
622 track.SetSlopeX(slopeX);
623 track.SetSlopeY(slopeY);
626 if ( currCh != chamberId ) {
633 if ( hitsOnTrigger < 3 ) continue;
635 // Check if the track passes the trigger algorithm
636 if ( InitTriggerResponse() ) {
637 AliMUONTriggerStoreV1 triggerStore;
638 fTriggerElectronics->Digits2Trigger(digitStore,triggerStore);
640 TIter next(triggerStore.CreateIterator());
641 AliMUONLocalTrigger* locTrg(0x0);
643 Int_t ptCutLevel = 0;
645 while ( ( locTrg = static_cast<AliMUONLocalTrigger*>(next()) ) )
647 if ( locTrg->IsTrigX() && locTrg->IsTrigY() )
649 ptCutLevel = TMath::Max(ptCutLevel, 1);
650 if ( locTrg->LoHpt() ) ptCutLevel = TMath::Max(ptCutLevel, 3);
651 else if ( locTrg->LoLpt() ) ptCutLevel = TMath::Max(ptCutLevel, 2);
653 } // end of loop on Local Trigger
654 track.SetPtCutLevel(ptCutLevel);
656 track.SetUniqueID(iTrackRef);
657 fRecoTriggerRefStore->Add(track);
662 //_____________________________________________________________________________
663 void AliMUONRecoCheck::CleanMuonTrackRef(const AliMUONVTrackStore *tmpTrackRefStore)
665 /// Re-calculate hits parameters because two AliTrackReferences are recorded for
666 /// each chamber (one when particle is entering + one when particle is leaving
667 /// the sensitive volume)
668 if (!(fTrackRefStore = AliMUONESDInterface::NewTrackStore())) return;
670 Double_t maxGasGap = 1.; // cm
671 Double_t x, y, z, pX, pY, pZ, x1, y1, z1, pX1, pY1, pZ1, z2;
672 Double_t bendingSlope,nonBendingSlope,inverseBendingMomentum;
673 AliMUONVCluster* hit = AliMUONESDInterface::NewCluster();
676 TIter next(tmpTrackRefStore->CreateIterator());
678 // loop over tmpTrackRef
680 while ( ( track = static_cast<AliMUONTrack*>(next()) ) ) {
682 AliMUONTrack newTrack;
684 // loop over tmpTrackRef's hits
686 Int_t nTrackHits = track->GetNClusters();
687 while (iHit1 < nTrackHits) {
688 AliMUONTrackParam *trackParam1 = (AliMUONTrackParam*) track->GetTrackParamAtCluster()->UncheckedAt(iHit1);
690 // get track parameters at hit1
691 x1 = trackParam1->GetNonBendingCoor();
692 y1 = trackParam1->GetBendingCoor();
693 z1 = trackParam1->GetZ();
694 pX1 = trackParam1->Px();
695 pY1 = trackParam1->Py();
696 pZ1 = trackParam1->Pz();
698 // prepare new track parameters
706 // loop over next tmpTrackRef's hits
707 Int_t nCombinedHits = 1;
708 for (Int_t iHit2 = iHit1+1; iHit2 < nTrackHits; iHit2++) {
709 AliMUONTrackParam *trackParam2 = (AliMUONTrackParam*) track->GetTrackParamAtCluster()->UncheckedAt(iHit2);
711 // get z position of hit2
712 z2 = trackParam2->GetZ();
714 // complete new track parameters if hit2 is on the same detection element
715 if ( TMath::Abs(z2-z1) < maxGasGap ) {
716 x += trackParam2->GetNonBendingCoor();
717 y += trackParam2->GetBendingCoor();
719 pX += trackParam2->Px();
720 pY += trackParam2->Py();
721 pZ += trackParam2->Pz();
728 // finalize new track parameters
729 x /= (Double_t)nCombinedHits;
730 y /= (Double_t)nCombinedHits;
731 z /= (Double_t)nCombinedHits;
732 pX /= (Double_t)nCombinedHits;
733 pY /= (Double_t)nCombinedHits;
734 pZ /= (Double_t)nCombinedHits;
737 inverseBendingMomentum = 0;
738 if (TMath::Abs(pZ) > 0) {
739 bendingSlope = pY/pZ;
740 nonBendingSlope = pX/pZ;
742 Double_t pYZ = TMath::Sqrt(pY*pY+pZ*pZ);
743 if (pYZ >0) inverseBendingMomentum = 1/pYZ;
744 inverseBendingMomentum *= trackParam1->GetCharge();
746 // set hit parameters
747 hit->SetUniqueID(trackParam1->GetClusterPtr()->GetUniqueID());
749 hit->SetErrXY(0.,0.);
751 // set new track parameters at new hit
752 AliMUONTrackParam trackParam;
753 trackParam.SetNonBendingCoor(x);
754 trackParam.SetBendingCoor(y);
756 trackParam.SetBendingSlope(bendingSlope);
757 trackParam.SetNonBendingSlope(nonBendingSlope);
758 trackParam.SetInverseBendingMomentum(inverseBendingMomentum);
760 // add track parameters at current hit to the track
761 newTrack.AddTrackParamAtCluster(trackParam, *hit, kTRUE);
766 newTrack.SetUniqueID(track->GetUniqueID());
767 newTrack.SetTrackParamAtVertex(track->GetTrackParamAtVertex());
768 fTrackRefStore->Add(newTrack);
775 //_____________________________________________________________________________
776 void AliMUONRecoCheck::MakeReconstructibleTracks(UInt_t requestedStationMask, Bool_t request2ChInSameSt45,
777 Bool_t hitInFrontOfPad)
779 /// Isolate the reconstructible tracks
780 if (!(fRecoTrackRefStore = AliMUONESDInterface::NewTrackStore())) return;
782 // need geometry transformer and segmentation to check if trackrefs are located in front of pad(s)
783 if (hitInFrontOfPad) {
784 if (!InitGeometryTransformer()) return;
785 if (!AliMpSegmentation::Instance(kFALSE) && !AliMUONCDB::LoadMapping(kTRUE)) return;
788 // create iterator on trackRef
789 TIter next(fTrackRefStore->CreateIterator());
791 // loop over trackRef and add reconstructible tracks to fRecoTrackRefStore
793 while ( ( track = static_cast<AliMUONTrack*>(next()) ) ) {
795 // check if the track is valid as it is
796 if (track->IsValid(requestedStationMask, request2ChInSameSt45)) {
798 if (hitInFrontOfPad) {
800 AliMUONTrack trackTmp(*track);
802 // loop over clusters and remove those which are not in front of pad(s)
803 AliMUONTrackParam *param = static_cast<AliMUONTrackParam*>(trackTmp.GetTrackParamAtCluster()->First());
805 AliMUONTrackParam *nextParam = static_cast<AliMUONTrackParam*>(trackTmp.GetTrackParamAtCluster()->After(param));
806 if (!IsHitInFrontOfPad(param)) trackTmp.RemoveTrackParamAtCluster(param);
810 // add the track if it is still valid
811 if (trackTmp.IsValid(requestedStationMask, request2ChInSameSt45)) fRecoTrackRefStore->Add(trackTmp);
816 fRecoTrackRefStore->Add(*track);
826 //_____________________________________________________________________________
827 AliMUONTrack* AliMUONRecoCheck::FindCompatibleTrack(AliMUONTrack &track, AliMUONVTrackStore &trackStore,
828 Int_t &nMatchClusters, Bool_t useLabel, Double_t sigmaCut)
830 /// Return the track from the store matched with the given track (or 0x0) and the number of matched clusters.
831 /// Matching is done by using the MC label of by comparing cluster/TrackRef positions according to the flag "useLabel".
832 /// WARNING: Who match who matters since the matching algorithm uses the *fraction* of matched clusters of the given track
834 AliMUONTrack *matchedTrack = 0x0;
837 if (useLabel) { // by using the MC label
839 // get the corresponding simulated track if any
840 Int_t label = track.GetMCLabel();
841 matchedTrack = (AliMUONTrack*) trackStore.FindObject(label);
843 // get the fraction of matched clusters
845 Int_t nClusters = track.GetNClusters();
846 for (Int_t iCl = 0; iCl < nClusters; iCl++)
847 if (((AliMUONTrackParam*) track.GetTrackParamAtCluster()->UncheckedAt(iCl))->GetClusterPtr()->GetMCLabel() == label)
851 } else { // by comparing cluster/TrackRef positions
853 // look for the corresponding simulated track if any
854 TIter next(trackStore.CreateIterator());
855 AliMUONTrack* track2;
856 while ( ( track2 = static_cast<AliMUONTrack*>(next()) ) ) {
858 // check compatibility
860 if (track.Match(*track2, sigmaCut, n)) {
861 matchedTrack = track2;
875 //_____________________________________________________________________________
876 AliMUONTriggerTrack* AliMUONRecoCheck::FindCompatibleTrack(AliMUONTriggerTrack &track, const AliMUONVTriggerTrackStore &triggerTrackStore,
879 /// Return the trigger track from the store matched with the given track (or 0x0).
880 /// Matching is done by comparing cluster/TrackRef positions.
882 AliMUONTriggerTrack *matchedTrack = 0x0;
884 // look for the corresponding simulated track if any
885 TIter next(triggerTrackStore.CreateIterator());
886 AliMUONTriggerTrack* track2;
887 while ( ( track2 = static_cast<AliMUONTriggerTrack*>(next()) ) ) {
888 // check compatibility
889 if (track.Match(*track2, sigmaCut)) {
890 matchedTrack = track2;
900 //____________________________________________________________________________
901 Bool_t AliMUONRecoCheck::InitTriggerResponse()
903 /// Initialize trigger electronics
904 /// for building of triggerable tracks from MC
906 if ( fTriggerElectronics ) return kTRUE;
908 if ( ! InitGeometryTransformer() ) return kFALSE;
910 if ( ! AliMpDDLStore::Instance(false) ) AliMpCDB::LoadDDLStore();
912 if ( ! InitCalibrationData() ) return kFALSE;
914 fTriggerElectronics = new AliMUONTriggerElectronics(fCalibrationData);
920 //____________________________________________________________________________
921 Bool_t AliMUONRecoCheck::InitCalibrationData()
923 /// Initialize calibration data
924 if ( ! fCalibrationData ) {
925 if ( !AliMUONCDB::CheckOCDB() ) return kFALSE;
926 fCalibrationData = new AliMUONCalibrationData(AliCDBManager::Instance()->GetRun());
932 //____________________________________________________________________________
933 Bool_t AliMUONRecoCheck::InitGeometryTransformer()
935 /// Return geometry transformer
936 /// (create it if necessary)
937 if ( ! fGeometryTransformer ) {
939 if ( !AliMUONCDB::CheckOCDB() ) return kFALSE;
941 if (!AliGeomManager::GetGeometry()) {
942 AliGeomManager::LoadGeometry();
943 if (!AliGeomManager::GetGeometry()) return kFALSE;
944 if (!AliGeomManager::ApplyAlignObjsFromCDB("MUON")) return kFALSE;
947 fGeometryTransformer = new AliMUONGeometryTransformer();
948 fGeometryTransformer->LoadGeometryData();
954 //________________________________________________________________________
955 Bool_t AliMUONRecoCheck::IsHitInFrontOfPad(AliMUONTrackParam *param) const
957 /// Return kTRUE if the hit is located in front of at least 1 pad
959 Int_t deId = param->GetClusterPtr()->GetDetElemId();
962 fGeometryTransformer->Global2Local(deId, param->GetNonBendingCoor(), param->GetBendingCoor(), param->GetZ(), xL, yL, zL);
964 const AliMpVSegmentation* seg1 = AliMpSegmentation::Instance()->GetMpSegmentation(deId, AliMp::kCath0);
965 const AliMpVSegmentation* seg2 = AliMpSegmentation::Instance()->GetMpSegmentation(deId, AliMp::kCath1);
966 if (!seg1 || !seg2) return kFALSE;
968 AliMpPad pad1 = seg1->PadByPosition(xL, yL, kFALSE);
969 AliMpPad pad2 = seg2->PadByPosition(xL, yL, kFALSE);
971 return (pad1.IsValid() || pad2.IsValid());