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 //_________________________________________________________________________
20 //-- Yves Schutz (SUBATECH)
21 // Reconstruction class. Redesigned from the old AliReconstructionner class and
22 // derived from STEER/AliReconstructor.
26 // --- ROOT system ---
27 #include <TClonesArray.h>
28 #include "TGeoManager.h"
29 #include "TGeoMatrix.h"
31 // --- Standard library ---
33 // --- AliRoot header files ---
34 #include "AliEMCALReconstructor.h"
36 #include "AliCodeTimer.h"
37 #include "AliCaloCalibPedestal.h"
38 #include "AliEMCALCalibData.h"
39 #include "AliESDEvent.h"
40 #include "AliESDCaloCluster.h"
41 #include "AliESDCaloCells.h"
42 #include "AliESDtrack.h"
43 #include "AliEMCALLoader.h"
44 #include "AliEMCALRawUtils.h"
45 #include "AliEMCALDigit.h"
46 #include "AliEMCALClusterizerv1.h"
47 #include "AliEMCALClusterizerv2.h"
48 #include "AliEMCALClusterizerNxN.h"
49 #include "AliEMCALRecPoint.h"
50 #include "AliEMCALPID.h"
51 #include "AliEMCALRecoUtils.h"
52 #include "AliRawReader.h"
53 #include "AliCDBEntry.h"
54 #include "AliCDBManager.h"
55 #include "AliEMCALGeometry.h"
57 #include "AliESDVZERO.h"
58 #include "AliCDBManager.h"
59 #include "AliRunLoader.h"
61 #include "AliEMCALTriggerData.h"
62 #include "AliEMCALTriggerElectronics.h"
63 #include "AliEMCALTriggerDCSConfigDB.h"
64 #include "AliEMCALTriggerDCSConfig.h"
65 #include "AliEMCALTriggerData.h"
66 #include "AliEMCALTriggerRawDigit.h"
67 #include "AliEMCALTriggerPatch.h"
68 #include "AliEMCALTriggerTypes.h"
70 ClassImp(AliEMCALReconstructor)
72 const AliEMCALRecParam* AliEMCALReconstructor::fgkRecParam = 0; // EMCAL rec. parameters
73 AliEMCALRawUtils* AliEMCALReconstructor::fgRawUtils = 0; // EMCAL raw utilities class
74 AliEMCALClusterizer* AliEMCALReconstructor::fgClusterizer = 0; // EMCAL clusterizer class
75 TClonesArray* AliEMCALReconstructor::fgDigitsArr = 0; // list of digits, to be used multiple times
76 TObjArray* AliEMCALReconstructor::fgClustersArr = 0; // list of clusters, to be used multiple times
77 TClonesArray* AliEMCALReconstructor::fgTriggerDigits = 0; // list of trigger digits, to be used multiple times
78 AliEMCALTriggerElectronics* AliEMCALReconstructor::fgTriggerProcessor = 0x0;
79 //____________________________________________________________________________
80 AliEMCALReconstructor::AliEMCALReconstructor()
81 : fGeom(0),fCalibData(0),fPedestalData(0),fTriggerData(0x0), fMatches(0x0)
85 // AliDebug(2, "Mark.");
87 fgRawUtils = new AliEMCALRawUtils;
89 //To make sure we match with the geometry in a simulation file,
90 //let's try to get it first. If not, take the default geometry
91 AliRunLoader *rl = AliRunLoader::Instance();
93 AliEMCAL * emcal = dynamic_cast<AliEMCAL*>(rl->GetAliRun()->GetDetector("EMCAL"));
94 if(emcal) fGeom = emcal->GetGeometry();
98 AliInfo(Form("Using default geometry in reconstruction"));
99 fGeom = AliEMCALGeometry::GetInstance(AliEMCALGeometry::GetDefaultGeometryName());
102 //Get calibration parameters
105 AliCDBEntry *entry = (AliCDBEntry*)
106 AliCDBManager::Instance()->Get("EMCAL/Calib/Data");
107 if (entry) fCalibData = (AliEMCALCalibData*) entry->GetObject();
111 AliFatal("Calibration parameters not found in CDB!");
113 //Get calibration parameters
116 AliCDBEntry *entry = (AliCDBEntry*)
117 AliCDBManager::Instance()->Get("EMCAL/Calib/Pedestals");
118 if (entry) fPedestalData = (AliCaloCalibPedestal*) entry->GetObject();
122 AliFatal("Dead map not found in CDB!");
124 if(!fGeom) AliFatal(Form("Could not get geometry!"));
126 AliEMCALTriggerDCSConfigDB* dcsConfigDB = AliEMCALTriggerDCSConfigDB::Instance();
128 const AliEMCALTriggerDCSConfig* dcsConfig = dcsConfigDB->GetTriggerDCSConfig();
130 if (!dcsConfig) AliFatal("No Trigger DCS Configuration from OCDB!");
131 fgTriggerProcessor = new AliEMCALTriggerElectronics( dcsConfig );
133 fTriggerData = new AliEMCALTriggerData();
135 //Init temporary list of digits
136 fgDigitsArr = new TClonesArray("AliEMCALDigit",1000);
137 fgClustersArr = new TObjArray(1000);
138 fgTriggerDigits = new TClonesArray("AliEMCALTriggerRawDigit",1000);
141 fMatches = new TList();
142 fMatches->SetOwner(kTRUE);
145 //____________________________________________________________________________
146 AliEMCALReconstructor::~AliEMCALReconstructor()
150 //AliDebug(2, "Mark.");
152 if(fGeom) delete fGeom;
154 //No need to delete, recovered from OCDB
155 //if(fCalibData) delete fCalibData;
156 //if(fPedestalData) delete fPedestalData;
159 fgDigitsArr->Clear("C");
164 fgClustersArr->Clear();
165 delete fgClustersArr;
169 fgTriggerDigits->Clear();
170 delete fgTriggerDigits;
173 if(fgRawUtils) delete fgRawUtils;
174 if(fgClusterizer) delete fgClusterizer;
175 if(fgTriggerProcessor) delete fgTriggerProcessor;
177 if(fMatches) { fMatches->Delete(); delete fMatches; fMatches = 0;}
179 AliCodeTimer::Instance()->Print();
182 //____________________________________________________________________________
183 void AliEMCALReconstructor::InitClusterizer() const
185 //Init the clusterizer with geometry and calibration pointers, avoid doing it twice.
186 Int_t clusterizerType = -1;
187 Int_t eventType = -1;
189 clusterizerType = GetRecParam()->GetClusterizerFlag();
190 eventType = GetRecParam()->GetEventSpecie();
193 AliCDBEntry *entry = (AliCDBEntry*)
194 AliCDBManager::Instance()->Get("EMCAL/Calib/RecoParam");
195 //Get The reco param for the default event specie
197 AliEMCALRecParam *recParam = (AliEMCALRecParam*)((TObjArray *) entry->GetObject())->At(0);
198 if(recParam) clusterizerType = recParam->GetClusterizerFlag();
202 //Check if clusterizer previously set corresponds to what is needed for this event type
204 if(eventType!=AliRecoParam::kCalib){
205 //printf("ReCreate clusterizer? Clusterizer set <%d>, Clusterizer in use <%s>\n",
206 // clusterizerType, fgClusterizer->Version());
208 if (clusterizerType == AliEMCALRecParam::kClusterizerv1 && !strcmp(fgClusterizer->Version(),"clu-v1")) return;
210 else if(clusterizerType == AliEMCALRecParam::kClusterizerNxN && !strcmp(fgClusterizer->Version(),"clu-NxN")) return;
212 else if(clusterizerType == AliEMCALRecParam::kClusterizerv2 && !strcmp(fgClusterizer->Version(),"clu-v2")) return;
214 //Need to create new clusterizer, the one set previously is not the correct one
215 delete fgClusterizer;
220 if (clusterizerType == AliEMCALRecParam::kClusterizerv1)
222 fgClusterizer = new AliEMCALClusterizerv1 (fGeom, fCalibData,fPedestalData);
224 else if (clusterizerType == AliEMCALRecParam::kClusterizerNxN)
226 fgClusterizer = new AliEMCALClusterizerNxN(fGeom, fCalibData,fPedestalData);
228 else if (clusterizerType == AliEMCALRecParam::kClusterizerv2)
230 fgClusterizer = new AliEMCALClusterizerv2 (fGeom, fCalibData,fPedestalData);
234 AliFatal(Form("Unknown clusterizer %d ", clusterizerType));
238 //____________________________________________________________________________
239 void AliEMCALReconstructor::Reconstruct(TTree* digitsTree, TTree* clustersTree) const
241 // method called by AliReconstruction;
242 // Only the clusterization is performed,; the rest of the reconstruction is done in FillESD because the track
243 // segment maker needs access to the AliESD object to retrieve the tracks reconstructed by
244 // the global tracking.
245 // Works on the current event.
247 AliCodeTimerAuto("",0)
249 //Get input digits and put them in fgDigitsArr, clear the list before
250 ReadDigitsArrayFromTree(digitsTree);
254 fgClusterizer->InitParameters();
255 fgClusterizer->SetOutput(clustersTree);
257 //Skip clusterization of LED events
258 if (GetRecParam()->GetEventSpecie()!=AliRecoParam::kCalib){
260 if(fgDigitsArr && fgDigitsArr->GetEntries()) {
262 fgClusterizer->SetInput(digitsTree);
264 //fgClusterizer->Digits2Clusters("deb all") ; //For debugging
265 fgClusterizer->Digits2Clusters("");
267 fgClusterizer->Clear();
269 }//digits array exists and has somethind
272 clustersTree->Fill();
274 // Deleting the recpoints at the end of the reconstruction call
275 fgClusterizer->DeleteRecPoints();
278 //____________________________________________________________________________
279 void AliEMCALReconstructor::ConvertDigits(AliRawReader* rawReader, TTree* digitsTree) const
282 // Conversion from raw data to
284 // Works on a single-event basis
288 fTriggerData->SetMode(1);
290 if(fgDigitsArr) fgDigitsArr->Clear("C");
292 TClonesArray *digitsTrg = new TClonesArray("AliEMCALTriggerRawDigit", 32 * 96);
294 Int_t bufsize = 32000;
295 digitsTree->Branch("EMCAL", &fgDigitsArr, bufsize);
296 digitsTree->Branch("EMTRG", &digitsTrg, bufsize);
298 //Skip calibration events do the rest
299 Bool_t doFit = kTRUE;
300 if ( !(GetRecParam()->FitLEDEvents()) && GetRecParam()->GetEventSpecie()==AliRecoParam::kCalib) doFit = kFALSE;
302 //must be done here because, in constructor, option is not yet known
303 fgRawUtils->SetOption(GetOption());
305 // fgRawUtils->SetRawFormatHighLowGainFactor(GetRecParam()->GetHighLowGainFactor());
307 // fgRawUtils->SetRawFormatOrder(GetRecParam()->GetOrderParameter());
308 // fgRawUtils->SetRawFormatTau(GetRecParam()->GetTau());
309 fgRawUtils->SetNoiseThreshold(GetRecParam()->GetNoiseThreshold());
310 fgRawUtils->SetNPedSamples(GetRecParam()->GetNPedSamples());
311 fgRawUtils->SetRemoveBadChannels(GetRecParam()->GetRemoveBadChannels());
312 if (!fgRawUtils->GetFittingAlgorithm()) fgRawUtils->SetFittingAlgorithm(GetRecParam()->GetFittingAlgorithm());
313 fgRawUtils->SetFALTROUsage(GetRecParam()->UseFALTRO());
315 //fgRawUtils->SetTimeMin(GetRecParam()->GetTimeMin());
316 //fgRawUtils->SetTimeMax(GetRecParam()->GetTimeMax());
318 // fgRawUtils->SetTimeMin(-99999 );
319 // fgRawUtils->SetTimeMax( 99999 );
321 fgRawUtils->Raw2Digits(rawReader,fgDigitsArr,fPedestalData,digitsTrg,fTriggerData);
323 }//skip calibration event
325 AliDebug(1," Calibration Event, skip!");
335 //____________________________________________________________________________
336 void AliEMCALReconstructor::FillESD(TTree* digitsTree, TTree* clustersTree,
337 AliESDEvent* esd) const
339 // Called by AliReconstruct after Reconstruct() and global tracking and vertexing
341 // Works on the current event
342 // printf(" ## AliEMCALReconstructor::FillESD() is started ### \n ");
345 //########################################
347 //########################################
349 static int saveOnce = 0;
351 Int_t v0M[2] = {0, 0};
353 AliESDVZERO* esdV0 = esd->GetVZEROData();
357 v0M[0] = esdV0->GetTriggerChargeC();
358 v0M[1] = esdV0->GetTriggerChargeA();
362 AliWarning("No V0 ESD! Run trigger processor w/ null V0 charges");
365 if (fgTriggerDigits) fgTriggerDigits->Clear();
367 TBranch *branchtrg = digitsTree->GetBranch("EMTRG");
371 AliError("Can't get the branch with the EMCAL trigger digits!");
375 branchtrg->SetAddress(&fgTriggerDigits);
376 branchtrg->GetEntry(0);
378 // Note: fgTriggerProcessor reset done at the end of this method
379 fgTriggerProcessor->Digits2Trigger(fgTriggerDigits, v0M, fTriggerData);
382 AliESDCaloTrigger* trgESD = esd->GetCaloTrigger("EMCAL");
386 trgESD->Allocate(fgTriggerDigits->GetEntriesFast());
388 for (Int_t i = 0; i < fgTriggerDigits->GetEntriesFast(); i++)
390 AliEMCALTriggerRawDigit* rdig = (AliEMCALTriggerRawDigit*)fgTriggerDigits->At(i);
393 if (fGeom->GetPositionInEMCALFromAbsFastORIndex(rdig->GetId(), px, py))
395 Int_t a = -1, t = -1, times[10];
397 rdig->GetMaximum(a, t);
398 rdig->GetL0Times(times);
400 trgESD->Add(px, py, a, t, times, rdig->GetNL0Times(), rdig->GetL1TimeSum(), rdig->GetTriggerBits());
404 trgESD->SetL1Threshold(0, fTriggerData->GetL1GammaThreshold());
406 trgESD->SetL1Threshold(1, fTriggerData->GetL1JetThreshold() );
409 fTriggerData->GetL1V0(v0);
412 trgESD->SetL1FrameMask(fTriggerData->GetL1FrameMask());
414 if (!saveOnce && fTriggerData->GetL1DataDecoded())
417 fTriggerData->GetL1TriggerType(type);
419 esd->SetCaloTriggerType(type);
426 fTriggerData->Reset();
428 //########################################
429 //##############Fill CaloCells###############
430 //########################################
432 //Get input digits and put them in fgDigitsArr, clear the list before
433 ReadDigitsArrayFromTree(digitsTree);
435 Int_t nDigits = fgDigitsArr->GetEntries(), idignew = 0 ;
436 AliDebug(1,Form("%d digits",nDigits));
437 AliESDCaloCells &emcCells = *(esd->GetEMCALCells());
438 emcCells.CreateContainer(nDigits);
439 emcCells.SetType(AliVCaloCells::kEMCALCell);
442 for (Int_t idig = 0 ; idig < nDigits ; idig++) {
443 const AliEMCALDigit * dig = (const AliEMCALDigit*)fgDigitsArr->At(idig);
444 time = dig->GetTime(); // Time already calibrated in clusterizer
445 energy = dig->GetAmplitude(); // energy calibrated in clusterizer
447 fgClusterizer->Calibrate(energy,time,dig->GetId()); //Digits already calibrated in clusterizers
448 if(energy > 0){ //Digits tagged as bad (dead, hot, not alive) are set to 0 in calibrate, remove them
449 emcCells.SetCell(idignew,dig->GetId(),energy, time);
454 emcCells.SetNumberOfCells(idignew);
457 //------------------------------------------------------------
458 //-----------------CLUSTERS-----------------------------
459 //------------------------------------------------------------
460 clustersTree->SetBranchStatus("*",0); //disable all branches
461 clustersTree->SetBranchStatus("EMCALECARP",1); //Enable only the branch we need
462 if(fgClustersArr) fgClustersArr->Clear();
463 TBranch *branch = clustersTree->GetBranch("EMCALECARP");
464 branch->SetAddress(&fgClustersArr);
466 //clustersTree->GetEvent(0);
468 Int_t nClusters = fgClustersArr->GetEntries(), nClustersNew=0;
469 AliDebug(1,Form("%d clusters",nClusters));
472 //########################################
473 //##############Fill CaloClusters#############
474 //########################################
475 for (Int_t iClust = 0 ; iClust < nClusters ; iClust++) {
476 const AliEMCALRecPoint * clust = (const AliEMCALRecPoint*)fgClustersArr->At(iClust);
478 //if(clust->GetClusterType()== AliVCluster::kEMCALClusterv1) nRP++; else nPC++;
479 // clust->Print(); //For debugging
480 // Get information from EMCAL reconstruction points
483 clust->GetGlobalPosition(gpos);
484 for (Int_t ixyz=0; ixyz<3; ixyz++)
485 xyz[ixyz] = gpos[ixyz];
487 clust->GetElipsAxis(elipAxis);
488 //Create digits lists
489 Int_t cellMult = clust->GetMultiplicity();
490 //TArrayS digiList(digitMult);
491 Float_t *amplFloat = clust->GetEnergiesList();
492 Int_t *digitInts = clust->GetAbsId();
493 TArrayS absIdList(cellMult);
494 TArrayD fracList(cellMult);
496 Int_t newCellMult = 0;
497 for (Int_t iCell=0; iCell<cellMult; iCell++) {
498 if (amplFloat[iCell] > 0) {
499 absIdList[newCellMult] = (UShort_t)(digitInts[iCell]);
501 if(emcCells.GetCellAmplitude(digitInts[iCell])>0 && GetRecParam()->GetUnfold()){
502 fracList[newCellMult] = amplFloat[iCell]/(emcCells.GetCellAmplitude(digitInts[iCell]));//get cell calibration value
506 fracList[newCellMult] = 0;
512 absIdList.Set(newCellMult);
513 fracList.Set(newCellMult);
515 if(newCellMult > 0) { // accept cluster if it has some digit
518 Int_t parentMult = 0;
519 Int_t *parentList = clust->GetParents(parentMult);
520 // fills the ESDCaloCluster
521 AliESDCaloCluster * ec = new AliESDCaloCluster() ;
522 ec->SetType(AliVCluster::kEMCALClusterv1);
523 ec->SetPosition(xyz);
524 ec->SetE(clust->GetEnergy());
526 //Distance to the nearest bad crystal
527 ec->SetDistanceToBadChannel(clust->GetDistanceToBadTower());
529 ec->SetNCells(newCellMult);
530 //Change type of list from short to ushort
531 UShort_t *newAbsIdList = new UShort_t[newCellMult];
532 Double_t *newFracList = new Double_t[newCellMult];
533 for(Int_t i = 0; i < newCellMult ; i++) {
534 newAbsIdList[i]=absIdList[i];
535 newFracList[i] =fracList[i];
537 ec->SetCellsAbsId(newAbsIdList);
538 ec->SetCellsAmplitudeFraction(newFracList);
539 ec->SetDispersion(clust->GetDispersion());
540 ec->SetChi2(-1); //not yet implemented
541 ec->SetM02(elipAxis[0]*elipAxis[0]) ;
542 ec->SetM20(elipAxis[1]*elipAxis[1]) ;
543 ec->SetTOF(clust->GetTime()) ; //time-of-fligh
544 ec->SetNExMax(clust->GetNExMax()); //number of local maxima
547 TArrayI arrayParents(parentMult,parentList);
548 ec->AddLabels(arrayParents);
553 Int_t nTracks = esd->GetNumberOfTracks();
554 for (Int_t itrack = 0; itrack < nTracks; itrack++)
556 AliESDtrack * track = esd->GetTrack(itrack) ; // retrieve track
557 if(track->GetEMCALcluster()==iClust)
559 Float_t dEta=-999, dPhi=-999;
560 Bool_t isMatch = CalculateResidual(track, ec, dEta, dPhi);
563 // AliDebug(10, "Not good");
566 AliEMCALMatch *match = new AliEMCALMatch();
567 match->SetIndexT(itrack);
568 match->SetDistance(TMath::Sqrt(dEta*dEta+dPhi*dPhi));
569 match->SetdEta(dEta);
570 match->SetdPhi(dPhi);
571 fMatches->Add(match);
574 fMatches->Sort(kSortAscending); //Sort matched tracks from closest to furthest
575 Int_t nMatch = fMatches->GetEntries();
576 TArrayI arrayTrackMatched(nMatch);
577 for(Int_t imatch=0; imatch<nMatch; imatch++)
579 AliEMCALMatch *match = (AliEMCALMatch*)fMatches->At(imatch);
580 arrayTrackMatched[imatch] = match->GetIndexT();
583 ec->SetTrackDistance(match->GetdPhi(), match->GetdEta());
586 ec->AddTracksMatched(arrayTrackMatched);
588 //add the cluster to the esd object
589 esd->AddCaloCluster(ec);
592 delete [] newAbsIdList ;
593 delete [] newFracList ;
595 } // cycle on clusters
598 //Reset the index of matched cluster for tracks
599 //to the one in CaloCluster array
600 Int_t ncls = esd->GetNumberOfCaloClusters();
601 for(Int_t icl=0; icl<ncls; icl++)
603 AliESDCaloCluster *cluster = esd->GetCaloCluster(icl);
604 if(!cluster || !cluster->IsEMCAL()) continue;
605 TArrayI *trackIndex = cluster->GetTracksMatched();
606 for(Int_t itr=0; itr<trackIndex->GetSize(); itr++)
608 AliESDtrack *track = esd->GetTrack(trackIndex->At(itr));
609 track->SetEMCALcluster(cluster->GetID());
614 //Fill ESDCaloCluster with PID weights
615 AliEMCALPID *pid = new AliEMCALPID;
616 //pid->SetPrintInfo(kTRUE);
617 pid->SetReconstructor(kTRUE);
621 //Store EMCAL misalignment matrixes
622 FillMisalMatrixes(esd) ;
626 //==================================================================================
627 void AliEMCALReconstructor::FillMisalMatrixes(AliESDEvent* esd)const{
628 //Store EMCAL matrixes in ESD Header
630 //Check, if matrixes was already stored
631 for(Int_t sm = 0 ; sm < fGeom->GetNumberOfSuperModules(); sm++){
632 if(esd->GetEMCALMatrix(sm)!=0)
636 //Create and store matrixes
638 AliError("Can not store misal. matrixes: no gGeoManager! \n") ;
641 //Note, that owner of copied marixes will be header
642 const Int_t bufsize = 255;
644 TGeoHMatrix * m = 0x0;
645 for(Int_t sm = 0; sm < fGeom->GetNumberOfSuperModules(); sm++){
646 snprintf(path,bufsize,"/ALIC_1/XEN1_1/SMOD_%d",sm+1) ; //In Geometry modules numbered 1,2,.,5
647 if(sm >= 10 && !((fGeom->GetEMCGeometry()->GetGeoName()).Contains("12SMV1"))) snprintf(path,bufsize,"/ALIC_1/XEN1_1/SM10_%d",sm-10+1) ;
648 if(sm >= 10 && ((fGeom->GetEMCGeometry()->GetGeoName()).Contains("12SMV1"))) snprintf(path,bufsize,"/ALIC_1/XEN1_1/SM3rd_%d",sm-10+1) ;
650 if (gGeoManager->CheckPath(path)){
651 gGeoManager->cd(path);
652 m = gGeoManager->GetCurrentMatrix() ;
653 // printf("================================================= \n");
654 // printf("AliEMCALReconstructor::FixMisalMatrixes(), sm %d, \n",sm);
656 esd->SetEMCALMatrix(new TGeoHMatrix(*m),sm) ;
657 // printf("================================================= \n");
660 esd->SetEMCALMatrix(NULL,sm) ;
665 //__________________________________________________________________________
666 void AliEMCALReconstructor::ReadDigitsArrayFromTree(TTree *digitsTree) const
668 // Read the digits from the input tree
669 // See AliEMCALClusterizer::SetInput(TTree *digitsTree);
671 // Clear previous digits in the list
673 fgDigitsArr->Clear("C");
676 // It should not happen, but just in case ...
677 fgDigitsArr = new TClonesArray("AliEMCALDigit",100);
680 // Read the digits from the input tree
681 TBranch *branch = digitsTree->GetBranch("EMCAL");
683 AliError("can't get the branch with the EMCAL digits !");
687 branch->SetAddress(&fgDigitsArr);
691 //==================================================================================
692 Bool_t AliEMCALReconstructor::CalculateResidual(AliESDtrack *track, AliESDCaloCluster *cluster, Float_t &dEta, Float_t &dPhi)const
695 // calculate the residual between track and cluster
698 // If the esdFriend is available, use the TPCOuter point as the starting point of extrapolation
699 // Otherwise use the TPCInner point
701 dEta = -999, dPhi = -999;
703 AliExternalTrackParam *trkParam = 0;
704 const AliESDfriendTrack* friendTrack = track->GetFriendTrack();
705 if(friendTrack && friendTrack->GetTPCOut())
706 trkParam = const_cast<AliExternalTrackParam*>(friendTrack->GetTPCOut());
708 trkParam = const_cast<AliExternalTrackParam*>(track->GetInnerParam());
709 if(!trkParam) return kFALSE;
711 AliExternalTrackParam trkParamTmp (*trkParam);
712 if(!AliEMCALRecoUtils::ExtrapolateTrackToCluster(&trkParamTmp, cluster, track->GetMass(), GetRecParam()->GetExtrapolateStep(), dEta, dPhi)) return kFALSE;
718 //==================================================================================
720 AliEMCALReconstructor::AliEMCALMatch::AliEMCALMatch()
727 //default constructor
732 //==================================================================================
734 AliEMCALReconstructor::AliEMCALMatch::AliEMCALMatch(const AliEMCALMatch& copy)
736 fIndexT(copy.fIndexT),
737 fDistance(copy.fDistance),
743 //_____________________________________________________________________
744 AliEMCALReconstructor::AliEMCALMatch& AliEMCALReconstructor::AliEMCALMatch::AliEMCALMatch::operator = (const AliEMCALMatch &source)
745 { // assignment operator; use copy ctor
746 if (&source == this) return *this;
748 new (this) AliEMCALMatch(source);
752 //==================================================================================
754 Int_t AliEMCALReconstructor::AliEMCALMatch::Compare(const TObject *obj) const
757 // Compare wrt the residual
760 AliEMCALReconstructor::AliEMCALMatch *that = (AliEMCALReconstructor::AliEMCALMatch*)obj;
762 Double_t thisDist = fDistance;//fDistance;
763 Double_t thatDist = that->fDistance;//that->GetDistance();
765 if (thisDist > thatDist) return 1;
766 else if (thisDist < thatDist) return -1;