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 "AliMUONVDigit.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() ) AliMUONESDInterface::ResetTracker();
196 fTriggerCircuit = new AliMUONTriggerCircuit(fGeometryTransformer);
202 //_____________________________________________________________________________
203 Int_t AliMUONRecoCheck::GetRunNumber()
205 /// Return the run number of the current ESD event
207 if (fESDEventOwner && fRecoTrackStore == 0x0 && fRecoTriggerTrackStore == 0x0) {
208 if (!fESDTree || fESDTree->GetEvent(fCurrentEvent) <= 0) {
209 AliError(Form("fails to read ESD object for event %d: cannot get the run number",fCurrentEvent));
214 return fESDEvent->GetRunNumber();
217 //_____________________________________________________________________________
218 Int_t AliMUONRecoCheck::NumberOfEvents() const
220 /// Return the number of events
221 if (fESDEventOwner && fESDTree) return fESDTree->GetEntries();
225 //_____________________________________________________________________________
226 AliMUONVTrackStore* AliMUONRecoCheck::ReconstructedTracks(Int_t event, Bool_t refit)
228 /// Return a track store containing the reconstructed tracks (converted into
229 /// MUONTrack objects) for a given event.
230 /// Track parameters at each clusters are computed or not depending on the flag "refit".
231 /// If not, only the track parameters at first cluster are valid.
233 if (!fESDEventOwner) {
234 if (fRecoTrackStore == 0x0) MakeReconstructedTracks(refit);
235 return fRecoTrackStore;
238 if (event != fCurrentEvent) {
240 fCurrentEvent = event;
243 if (fRecoTrackStore != 0x0) return fRecoTrackStore;
245 if (!fESDTree) return 0x0;
246 if (fESDTree->GetEvent(event) <= 0) {
247 AliError(Form("fails to read ESD object for event %d", event));
250 MakeReconstructedTracks(refit);
251 return fRecoTrackStore;
256 //_____________________________________________________________________________
257 AliMUONVTriggerTrackStore* AliMUONRecoCheck::TriggeredTracks(Int_t event)
259 /// Return a track store containing the reconstructed trigger tracks (converted into
260 /// MUONTriggerTrack objects) for a given event.
262 if (!fESDEventOwner) {
263 if (fRecoTriggerTrackStore == 0x0) MakeTriggeredTracks();
264 return fRecoTriggerTrackStore;
267 if (event != fCurrentEvent) {
269 fCurrentEvent = event;
272 if (fRecoTriggerTrackStore != 0x0) return fRecoTriggerTrackStore;
274 if (!fESDTree) return 0x0;
275 if (fESDTree->GetEvent(event) <= 0) {
276 AliError(Form("fails to read ESD object for event %d", event));
279 MakeTriggeredTracks();
280 return fRecoTriggerTrackStore;
285 //_____________________________________________________________________________
286 AliMUONVTrackStore* AliMUONRecoCheck::TrackRefs(Int_t event)
288 /// Return a track store containing the track references (converted into
289 /// MUONTrack objects) for a given event
291 if (!fESDEventOwner) {
292 if (fTrackRefStore == 0x0) MakeTrackRefs();
293 return fTrackRefStore;
296 if (event != fCurrentEvent) {
298 fCurrentEvent = event;
301 if (fTrackRefStore != 0x0) return fTrackRefStore;
303 if (!fMCEventHandler->LoadEvent(event)) {
304 AliError(Form("fails to read MC objects for event %d", event));
308 return fTrackRefStore;
312 //_____________________________________________________________________________
313 AliMUONVTriggerTrackStore* AliMUONRecoCheck::TriggerableTracks(Int_t event)
315 /// Return a trigger track store containing the triggerable track references (converted into
316 /// AliMUONTriggerTrack objects) for a given event
318 if (!fESDEventOwner) {
319 if (fRecoTriggerRefStore == 0x0) MakeTriggerableTracks();
320 return fRecoTriggerRefStore;
323 if (event != fCurrentEvent) {
325 fCurrentEvent = event;
328 if (fRecoTriggerRefStore != 0x0) return fRecoTriggerRefStore;
330 if (!fMCEventHandler->LoadEvent(event)) {
331 AliError(Form("fails to read MC objects for event %d", event));
334 MakeTriggerableTracks();
335 return fRecoTriggerRefStore;
340 //_____________________________________________________________________________
341 AliMUONVTrackStore* AliMUONRecoCheck::ReconstructibleTracks(Int_t event, UInt_t requestedStationMask,
342 Bool_t request2ChInSameSt45, Bool_t hitInFrontOfPad)
344 /// Return a track store containing the reconstructible tracks for a given event,
345 /// according to the mask of requested stations and the minimum number of chambers hit in stations 4 & 5.
347 if (!fESDEventOwner) {
348 if (fRecoTrackRefStore == 0x0) {
349 if (TrackRefs(event) == 0x0) return 0x0;
350 MakeReconstructibleTracks(requestedStationMask, request2ChInSameSt45, hitInFrontOfPad);
352 return fRecoTrackRefStore;
355 if (event != fCurrentEvent) {
357 fCurrentEvent = event;
360 if (fRecoTrackRefStore != 0x0) return fRecoTrackRefStore;
362 if (TrackRefs(event) == 0x0) return 0x0;
363 MakeReconstructibleTracks(requestedStationMask, request2ChInSameSt45, hitInFrontOfPad);
364 return fRecoTrackRefStore;
369 //_____________________________________________________________________________
370 void AliMUONRecoCheck::MakeReconstructedTracks(Bool_t refit)
372 /// Make reconstructed tracks
373 if (!(fRecoTrackStore = AliMUONESDInterface::NewTrackStore())) return;
375 // loop over all reconstructed tracks and add them to the store (skip ghosts)
376 Int_t nTracks = (Int_t) fESDEvent->GetNumberOfMuonTracks();
377 for (Int_t iTrack = 0; iTrack < nTracks; iTrack++) {
378 AliESDMuonTrack* esdTrack = fESDEvent->GetMuonTrack(iTrack);
379 if (esdTrack->ContainTrackerData()) AliMUONESDInterface::Add(*esdTrack, *fRecoTrackStore, refit);
385 //_____________________________________________________________________________
386 void AliMUONRecoCheck::MakeTriggeredTracks()
388 /// Make reconstructed trigger tracks
389 if (!(fRecoTriggerTrackStore = AliMUONESDInterface::NewTriggerTrackStore())) return;
391 AliMUONVTriggerStore* tmpTriggerStore = AliMUONESDInterface::NewTriggerStore();
392 if ( ! tmpTriggerStore ) return;
394 // loop over all reconstructed tracks and add them to the store (include ghosts)
395 Int_t nTracks = (Int_t) fESDEvent->GetNumberOfMuonTracks();
396 for (Int_t iTrack = 0; iTrack < nTracks; iTrack++) {
397 AliESDMuonTrack* esdTrack = fESDEvent->GetMuonTrack(iTrack);
398 if (esdTrack->ContainTriggerData()) AliMUONESDInterface::Add(*esdTrack, *tmpTriggerStore);
401 if ( InitCircuit() ) {
403 AliMUONVTrackReconstructor* tracker = AliMUONESDInterface::GetTracker();
404 tracker->EventReconstructTrigger(*fTriggerCircuit, *tmpTriggerStore, *fRecoTriggerTrackStore);
407 delete tmpTriggerStore;
410 //_____________________________________________________________________________
411 void AliMUONRecoCheck::TriggerToTrack(const AliMUONLocalTrigger& locTrg, AliMUONTriggerTrack& triggerTrack)
413 /// Make trigger track from local trigger info
414 if ( ! InitCircuit() ) return;
415 AliMUONVTrackReconstructor* tracker = AliMUONESDInterface::GetTracker();
416 tracker->TriggerToTrack(*fTriggerCircuit, locTrg, triggerTrack);
420 //_____________________________________________________________________________
421 void AliMUONRecoCheck::MakeTrackRefs()
423 /// Make reconstructible tracks
424 AliMUONVTrackStore *tmpTrackRefStore = AliMUONESDInterface::NewTrackStore();
425 if (!tmpTrackRefStore) return;
427 Double_t x, y, z, pX, pY, pZ, bendingSlope, nonBendingSlope, inverseBendingMomentum;
429 TClonesArray* trackRefs;
430 Int_t nTrackRef = fMCEventHandler->MCEvent()->GetNumberOfTracks();
431 AliMUONVCluster* hit = AliMUONESDInterface::NewCluster();
433 // loop over simulated tracks
434 for (Int_t iTrackRef = 0; iTrackRef < nTrackRef; ++iTrackRef) {
435 Int_t nHits = fMCEventHandler->GetParticleAndTR(iTrackRef, particle, trackRefs);
437 // skip empty trackRefs
438 if (nHits < 1) continue;
440 // get the particle charge for further calculation
441 TParticlePDG* ppdg = particle->GetPDG();
442 Int_t charge = ppdg != NULL ? (Int_t)(ppdg->Charge()/3.0) : 0;
446 // loop over simulated track hits
447 for (Int_t iHit = 0; iHit < nHits; ++iHit) {
448 AliTrackReference* trackReference = static_cast<AliTrackReference*>(trackRefs->UncheckedAt(iHit));
450 // skip trackRefs not in MUON
451 if (trackReference->DetectorId() != AliTrackReference::kMUON) continue;
453 // Get track parameters of current hit
454 x = trackReference->X();
455 y = trackReference->Y();
456 z = trackReference->Z();
457 pX = trackReference->Px();
458 pY = trackReference->Py();
459 pZ = trackReference->Pz();
461 // check chamberId of current trackReference
462 Int_t detElemId = trackReference->UserId();
463 Int_t chamberId = detElemId / 100 - 1;
464 if (chamberId < 0 || chamberId >= AliMUONConstants::NTrackingCh()) continue;
466 // set hit parameters
467 hit->SetUniqueID(AliMUONVCluster::BuildUniqueID(chamberId, detElemId, iHit));
469 hit->SetErrXY(0.,0.);
471 // compute track parameters at hit
474 inverseBendingMomentum = 0;
475 if (TMath::Abs(pZ) > 0) {
476 bendingSlope = pY/pZ;
477 nonBendingSlope = pX/pZ;
479 Double_t pYZ = TMath::Sqrt(pY*pY+pZ*pZ);
480 if (pYZ >0) inverseBendingMomentum = 1/pYZ;
481 inverseBendingMomentum *= charge;
483 // set track parameters at hit
484 AliMUONTrackParam trackParam;
485 trackParam.SetNonBendingCoor(x);
486 trackParam.SetBendingCoor(y);
488 trackParam.SetBendingSlope(bendingSlope);
489 trackParam.SetNonBendingSlope(nonBendingSlope);
490 trackParam.SetInverseBendingMomentum(inverseBendingMomentum);
492 // add track parameters at current hit to the track
493 track.AddTrackParamAtCluster(trackParam, *hit, kTRUE);
496 // if none of the track hits was in MUON, goto the next track
497 if (track.GetNClusters() < 1) continue;
499 // get track parameters at particle's vertex
507 // compute rest of track parameters at particle's vertex
510 inverseBendingMomentum = 0;
511 if (TMath::Abs(pZ) > 0) {
512 bendingSlope = pY/pZ;
513 nonBendingSlope = pX/pZ;
515 Double_t pYZ = TMath::Sqrt(pY*pY+pZ*pZ);
516 if (pYZ >0) inverseBendingMomentum = 1/pYZ;
517 inverseBendingMomentum *= charge;
519 // set track parameters at particle's vertex
520 AliMUONTrackParam trackParamAtVertex;
521 trackParamAtVertex.SetNonBendingCoor(x);
522 trackParamAtVertex.SetBendingCoor(y);
523 trackParamAtVertex.SetZ(z);
524 trackParamAtVertex.SetBendingSlope(bendingSlope);
525 trackParamAtVertex.SetNonBendingSlope(nonBendingSlope);
526 trackParamAtVertex.SetInverseBendingMomentum(inverseBendingMomentum);
528 // add track parameters at vertex
529 track.SetTrackParamAtVertex(&trackParamAtVertex);
532 track.SetUniqueID(iTrackRef);
533 tmpTrackRefStore->Add(track);
536 CleanMuonTrackRef(tmpTrackRefStore);
539 delete tmpTrackRefStore;
542 //_____________________________________________________________________________
543 void AliMUONRecoCheck::MakeTriggerableTracks()
545 /// Make triggerable tracks
546 if (!(fRecoTriggerRefStore = AliMUONESDInterface::NewTriggerTrackStore()))
549 Double_t x, y, z, slopeX, slopeY, pZ, xLoc, yLoc, zLoc;
551 TClonesArray* trackRefs;
552 Int_t nTrackRef = fMCEventHandler->MCEvent()->GetNumberOfTracks();
554 // loop over simulated tracks
555 for (Int_t iTrackRef = 0; iTrackRef < nTrackRef; ++iTrackRef) {
556 Int_t nHits = fMCEventHandler->GetParticleAndTR(iTrackRef, particle, trackRefs);
558 // skip empty trackRefs
559 if (nHits < 1) continue;
561 AliMUONTriggerTrack track;
562 AliMUONDigitStoreV2S digitStore;
563 Int_t hitsOnTrigger = 0;
566 // loop over simulated track hits
567 for (Int_t iHit = 0; iHit < nHits; ++iHit) {
568 AliTrackReference* trackReference = static_cast<AliTrackReference*>(trackRefs->UncheckedAt(iHit));
570 // skip trackRefs not in MUON
571 if (trackReference->DetectorId() != AliTrackReference::kMUON) continue;
573 // check chamberId of current trackReference
574 Int_t detElemId = trackReference->UserId();
575 Int_t chamberId = detElemId / 100 - 1;
576 if (chamberId < AliMUONConstants::NTrackingCh() || chamberId >= AliMUONConstants::NCh() ) continue;
578 // Get track parameters of current hit
579 x = trackReference->X();
580 y = trackReference->Y();
581 z = trackReference->Z();
583 if ( InitTriggerResponse() ) {
584 fGeometryTransformer->Global2Local(detElemId, x, y, z, xLoc, yLoc, zLoc);
587 for ( Int_t cath = AliMp::kCath0; cath <= AliMp::kCath1; ++cath )
589 const AliMpVSegmentation* seg
590 = AliMpSegmentation::Instance()
591 ->GetMpSegmentation(detElemId,AliMp::GetCathodType(cath));
593 AliMpPad pad = seg->PadByPosition(xLoc,yLoc,kFALSE);
594 Int_t ix = pad.GetIx();
595 Int_t iy = pad.GetIy();
597 if ( !pad.IsValid() ) continue;
599 if ( cath == AliMp::kCath0 ) nboard = pad.GetLocalBoardId(0);
601 AliMUONVDigit* digit = digitStore.Add(detElemId, nboard, pad.GetLocalBoardChannel(0),
602 cath, AliMUONVDigitStore::kDeny);
604 digit->SetPadXY(ix,iy);
605 digit->SetCharge(1.);
610 if ( hitsOnTrigger == 0 ) {
611 pZ = trackReference->Pz();
612 slopeX = ( pZ == 0. ) ? 99999. : trackReference->Px() / pZ;
613 slopeY = ( pZ == 0. ) ? 99999. : trackReference->Py() / pZ;
618 track.SetSlopeX(slopeX);
619 track.SetSlopeY(slopeY);
622 if ( currCh != chamberId ) {
629 if ( hitsOnTrigger < 3 ) continue;
631 // Check if the track passes the trigger algorithm
632 if ( InitTriggerResponse() ) {
633 AliMUONTriggerStoreV1 triggerStore;
634 fTriggerElectronics->Digits2Trigger(digitStore,triggerStore);
636 TIter next(triggerStore.CreateIterator());
637 AliMUONLocalTrigger* locTrg(0x0);
639 Int_t ptCutLevel = 0;
641 while ( ( locTrg = static_cast<AliMUONLocalTrigger*>(next()) ) )
643 if ( locTrg->IsTrigX() && locTrg->IsTrigY() )
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);
649 } // end of loop on Local Trigger
650 track.SetPtCutLevel(ptCutLevel);
652 track.SetUniqueID(iTrackRef);
653 fRecoTriggerRefStore->Add(track);
658 //_____________________________________________________________________________
659 void AliMUONRecoCheck::CleanMuonTrackRef(const AliMUONVTrackStore *tmpTrackRefStore)
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;
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();
672 TIter next(tmpTrackRefStore->CreateIterator());
674 // loop over tmpTrackRef
676 while ( ( track = static_cast<AliMUONTrack*>(next()) ) ) {
678 AliMUONTrack newTrack;
680 // loop over tmpTrackRef's hits
682 Int_t nTrackHits = track->GetNClusters();
683 while (iHit1 < nTrackHits) {
684 AliMUONTrackParam *trackParam1 = (AliMUONTrackParam*) track->GetTrackParamAtCluster()->UncheckedAt(iHit1);
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();
694 // prepare new track parameters
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);
707 // get z position of hit2
708 z2 = trackParam2->GetZ();
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();
715 pX += trackParam2->Px();
716 pY += trackParam2->Py();
717 pZ += trackParam2->Pz();
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;
733 inverseBendingMomentum = 0;
734 if (TMath::Abs(pZ) > 0) {
735 bendingSlope = pY/pZ;
736 nonBendingSlope = pX/pZ;
738 Double_t pYZ = TMath::Sqrt(pY*pY+pZ*pZ);
739 if (pYZ >0) inverseBendingMomentum = 1/pYZ;
740 inverseBendingMomentum *= trackParam1->GetCharge();
742 // set hit parameters
743 hit->SetUniqueID(trackParam1->GetClusterPtr()->GetUniqueID());
745 hit->SetErrXY(0.,0.);
747 // set new track parameters at new hit
748 AliMUONTrackParam trackParam;
749 trackParam.SetNonBendingCoor(x);
750 trackParam.SetBendingCoor(y);
752 trackParam.SetBendingSlope(bendingSlope);
753 trackParam.SetNonBendingSlope(nonBendingSlope);
754 trackParam.SetInverseBendingMomentum(inverseBendingMomentum);
756 // add track parameters at current hit to the track
757 newTrack.AddTrackParamAtCluster(trackParam, *hit, kTRUE);
762 newTrack.SetUniqueID(track->GetUniqueID());
763 newTrack.SetTrackParamAtVertex(track->GetTrackParamAtVertex());
764 fTrackRefStore->Add(newTrack);
771 //_____________________________________________________________________________
772 void AliMUONRecoCheck::MakeReconstructibleTracks(UInt_t requestedStationMask, Bool_t request2ChInSameSt45,
773 Bool_t hitInFrontOfPad)
775 /// Isolate the reconstructible tracks
776 if (!(fRecoTrackRefStore = AliMUONESDInterface::NewTrackStore())) return;
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;
784 // create iterator on trackRef
785 TIter next(fTrackRefStore->CreateIterator());
787 // loop over trackRef and add reconstructible tracks to fRecoTrackRefStore
789 while ( ( track = static_cast<AliMUONTrack*>(next()) ) ) {
791 // check if the track is valid as it is
792 if (track->IsValid(requestedStationMask, request2ChInSameSt45)) {
794 if (hitInFrontOfPad) {
796 AliMUONTrack trackTmp(*track);
798 // loop over clusters and remove those which are not in front of pad(s)
799 AliMUONTrackParam *param = static_cast<AliMUONTrackParam*>(trackTmp.GetTrackParamAtCluster()->First());
801 AliMUONTrackParam *nextParam = static_cast<AliMUONTrackParam*>(trackTmp.GetTrackParamAtCluster()->After(param));
802 if (!IsHitInFrontOfPad(param)) trackTmp.RemoveTrackParamAtCluster(param);
806 // add the track if it is still valid
807 if (trackTmp.IsValid(requestedStationMask, request2ChInSameSt45)) fRecoTrackRefStore->Add(trackTmp);
812 fRecoTrackRefStore->Add(*track);
822 //_____________________________________________________________________________
823 AliMUONTrack* AliMUONRecoCheck::FindCompatibleTrack(AliMUONTrack &track, AliMUONVTrackStore &trackStore,
824 Int_t &nMatchClusters, Bool_t useLabel, Double_t sigmaCut)
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
830 AliMUONTrack *matchedTrack = 0x0;
833 if (useLabel) { // by using the MC label
835 // get the corresponding simulated track if any
836 Int_t label = track.GetMCLabel();
837 matchedTrack = (AliMUONTrack*) trackStore.FindObject(label);
839 // get the fraction of matched clusters
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)
847 } else { // by comparing cluster/TrackRef positions
849 // look for the corresponding simulated track if any
850 TIter next(trackStore.CreateIterator());
851 AliMUONTrack* track2;
852 while ( ( track2 = static_cast<AliMUONTrack*>(next()) ) ) {
854 // check compatibility
856 if (track.Match(*track2, sigmaCut, n)) {
857 matchedTrack = track2;
871 //_____________________________________________________________________________
872 AliMUONTriggerTrack* AliMUONRecoCheck::FindCompatibleTrack(AliMUONTriggerTrack &track, const AliMUONVTriggerTrackStore &triggerTrackStore,
875 /// Return the trigger track from the store matched with the given track (or 0x0).
876 /// Matching is done by comparing cluster/TrackRef positions.
878 AliMUONTriggerTrack *matchedTrack = 0x0;
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;
896 //____________________________________________________________________________
897 Bool_t AliMUONRecoCheck::InitTriggerResponse()
899 /// Initialize trigger electronics
900 /// for building of triggerable tracks from MC
902 if ( fTriggerElectronics ) return kTRUE;
904 if ( ! InitGeometryTransformer() ) return kFALSE;
906 if ( ! AliMpDDLStore::Instance(false) && ! AliMpCDB::LoadDDLStore()) return kFALSE;
908 if ( ! InitCalibrationData() ) return kFALSE;
910 fTriggerElectronics = new AliMUONTriggerElectronics(fCalibrationData);
916 //____________________________________________________________________________
917 Bool_t AliMUONRecoCheck::InitCalibrationData()
919 /// Initialize calibration data
920 if ( ! fCalibrationData ) {
921 if ( !AliMUONCDB::CheckOCDB() ) return kFALSE;
922 fCalibrationData = new AliMUONCalibrationData(AliCDBManager::Instance()->GetRun());
928 //____________________________________________________________________________
929 Bool_t AliMUONRecoCheck::InitGeometryTransformer()
931 /// Return geometry transformer
932 /// (create it if necessary)
933 if ( ! fGeometryTransformer ) {
935 if ( !AliMUONCDB::CheckOCDB() ) return kFALSE;
937 if (!AliGeomManager::GetGeometry()) {
938 AliGeomManager::LoadGeometry();
939 if (!AliGeomManager::GetGeometry()) return kFALSE;
940 if (!AliGeomManager::ApplyAlignObjsFromCDB("MUON")) return kFALSE;
943 fGeometryTransformer = new AliMUONGeometryTransformer();
944 fGeometryTransformer->LoadGeometryData();
950 //________________________________________________________________________
951 Bool_t AliMUONRecoCheck::IsHitInFrontOfPad(AliMUONTrackParam *param) const
953 /// Return kTRUE if the hit is located in front of at least 1 pad
955 Int_t deId = param->GetClusterPtr()->GetDetElemId();
958 fGeometryTransformer->Global2Local(deId, param->GetNonBendingCoor(), param->GetBendingCoor(), param->GetZ(), xL, yL, zL);
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;
964 AliMpPad pad1 = seg1->PadByPosition(xL, yL, kFALSE);
965 AliMpPad pad2 = seg2->PadByPosition(xL, yL, kFALSE);
967 return (pad1.IsValid() || pad2.IsValid());