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.
24 //-- Aleksei Pavlinov : added staf for EMCAL jet trigger 9Apr 25, 2008)
25 // : fgDigitsArr should read just once at event
27 // --- ROOT system ---
29 #include <TClonesArray.h>
31 #include "TGeoManager.h"
32 #include "TGeoMatrix.h"
34 // --- Standard library ---
36 // --- AliRoot header files ---
37 #include "AliEMCALReconstructor.h"
39 #include "AliCodeTimer.h"
40 #include "AliESDEvent.h"
41 #include "AliESDCaloCluster.h"
42 #include "AliESDCaloCells.h"
43 #include "AliESDtrack.h"
44 #include "AliEMCALLoader.h"
45 #include "AliEMCALRawUtils.h"
46 #include "AliEMCALDigit.h"
47 #include "AliEMCALClusterizerv1.h"
48 #include "AliEMCALRecPoint.h"
49 #include "AliEMCALPID.h"
50 #include "AliEMCALTrigger.h"
51 #include "AliRawReader.h"
52 #include "AliCDBEntry.h"
53 #include "AliCDBManager.h"
54 #include "AliEMCALGeometry.h"
56 #include "AliEMCALHistoUtilities.h"
57 #include "AliESDVZERO.h"
58 #include "AliCDBManager.h"
59 #include "AliRunLoader.h"
61 #include "AliEMCALTriggerData.h"
62 #include "AliEMCALTriggerElectronics.h"
63 #include "AliVZEROLoader.h"
65 ClassImp(AliEMCALReconstructor)
67 const AliEMCALRecParam* AliEMCALReconstructor::fgkRecParam = 0; // EMCAL rec. parameters
68 AliEMCALRawUtils* AliEMCALReconstructor::fgRawUtils = 0; // EMCAL raw utilities class
69 AliEMCALClusterizer* AliEMCALReconstructor::fgClusterizer = 0; // EMCAL clusterizer class
70 TClonesArray* AliEMCALReconstructor::fgDigitsArr = 0; // shoud read just once at event
71 AliEMCALTriggerElectronics* AliEMCALReconstructor::fgTriggerProcessor = 0x0;
72 //____________________________________________________________________________
73 AliEMCALReconstructor::AliEMCALReconstructor()
74 : fDebug(kFALSE), fList(0), fGeom(0),fCalibData(0),fPedestalData(0)
78 fgRawUtils = new AliEMCALRawUtils;
80 //To make sure we match with the geometry in a simulation file,
81 //let's try to get it first. If not, take the default geometry
82 AliRunLoader *rl = AliRunLoader::Instance();
83 if (rl->GetAliRun() && rl->GetAliRun()->GetDetector("EMCAL")) {
84 fGeom = dynamic_cast<AliEMCAL*>(rl->GetAliRun()->GetDetector("EMCAL"))->GetGeometry();
86 AliInfo(Form("Using default geometry in reconstruction"));
87 fGeom = AliEMCALGeometry::GetInstance(AliEMCALGeometry::GetDefaultGeometryName());
90 //Get calibration parameters
93 AliCDBEntry *entry = (AliCDBEntry*)
94 AliCDBManager::Instance()->Get("EMCAL/Calib/Data");
95 if (entry) fCalibData = (AliEMCALCalibData*) entry->GetObject();
99 AliFatal("Calibration parameters not found in CDB!");
101 //Get calibration parameters
104 AliCDBEntry *entry = (AliCDBEntry*)
105 AliCDBManager::Instance()->Get("EMCAL/Calib/Pedestals");
106 if (entry) fPedestalData = (AliCaloCalibPedestal*) entry->GetObject();
110 AliFatal("Dead map not found in CDB!");
113 //Init the clusterizer with geometry and calibration pointers, avoid doing it twice.
114 fgClusterizer = new AliEMCALClusterizerv1(fGeom, fCalibData,fPedestalData);
116 if(!fGeom) AliFatal(Form("Could not get geometry!"));
118 fgTriggerProcessor = new AliEMCALTriggerElectronics();
121 //____________________________________________________________________________
122 AliEMCALReconstructor::~AliEMCALReconstructor()
127 delete fgClusterizer;
128 delete fgTriggerProcessor;
130 AliCodeTimer::Instance()->Print();
133 //____________________________________________________________________________
134 void AliEMCALReconstructor::Init()
136 // Trigger hists - Oct 24, 2007
137 fList = AliEMCALHistoUtilities::GetTriggersListOfHists(kTRUE);
140 //____________________________________________________________________________
141 void AliEMCALReconstructor::Reconstruct(TTree* digitsTree, TTree* clustersTree) const
143 // method called by AliReconstruction;
144 // Only the clusterization is performed,; the rest of the reconstruction is done in FillESD because the track
145 // segment maker needs access to the AliESD object to retrieve the tracks reconstructed by
146 // the global tracking.
147 // Works on the current event.
149 AliCodeTimerAuto("",0)
151 ReadDigitsArrayFromTree(digitsTree);
152 fgClusterizer->InitParameters();
153 fgClusterizer->SetOutput(clustersTree);
155 AliEMCALTriggerData* trgData = new AliEMCALTriggerData();
157 Int_t bufferSize = 32000;
159 if (TBranch* triggerBranch = clustersTree->GetBranch("EMTRG"))
160 triggerBranch->SetAddress(&trgData);
162 clustersTree->Branch("EMTRG","AliEMCALTriggerData",&trgData,bufferSize);
164 AliVZEROLoader* vzeroLoader = dynamic_cast<AliVZEROLoader*>(AliRunLoader::Instance()->GetDetectorLoader("VZERO"));
170 vzeroLoader->LoadDigits("READ");
171 treeV0 = vzeroLoader->TreeD();
174 TClonesArray *trgDigits = new TClonesArray("AliEMCALRawDigit",1000);
175 TBranch *branchdig = digitsTree->GetBranch("EMTRG");
178 AliError("Can't get the branch with the EMCAL trigger digits !");
182 branchdig->SetAddress(&trgDigits);
183 branchdig->GetEntry(0);
185 fgTriggerProcessor->Digits2Trigger(trgDigits, treeV0, trgData);
189 if(fgDigitsArr && fgDigitsArr->GetEntries()) {
191 fgClusterizer->SetInput(digitsTree);
194 fgClusterizer->Digits2Clusters("deb all") ;
196 fgClusterizer->Digits2Clusters("");
198 fgClusterizer->Clear();
202 clustersTree->Fill();
207 //____________________________________________________________________________
208 void AliEMCALReconstructor::ConvertDigits(AliRawReader* rawReader, TTree* digitsTree) const
211 // Conversion from raw data to
213 // Works on a single-event basis
217 TClonesArray *digitsArr = new TClonesArray("AliEMCALDigit",200);
218 TClonesArray *digitsTrg = new TClonesArray("AliEMCALRawDigit", 200);
220 Int_t bufsize = 32000;
221 digitsTree->Branch("EMCAL", &digitsArr, bufsize);
222 digitsTree->Branch("EMTRG", &digitsTrg, bufsize);
224 //must be done here because, in constructor, option is not yet known
225 fgRawUtils->SetOption(GetOption());
227 fgRawUtils->SetRawFormatHighLowGainFactor(GetRecParam()->GetHighLowGainFactor());
228 fgRawUtils->SetRawFormatOrder(GetRecParam()->GetOrderParameter());
229 fgRawUtils->SetRawFormatTau(GetRecParam()->GetTau());
230 fgRawUtils->SetNoiseThreshold(GetRecParam()->GetNoiseThreshold());
231 fgRawUtils->SetNPedSamples(GetRecParam()->GetNPedSamples());
232 fgRawUtils->SetRemoveBadChannels(GetRecParam()->GetRemoveBadChannels());
233 fgRawUtils->SetFittingAlgorithm(GetRecParam()->GetFittingAlgorithm());
235 fgRawUtils->Raw2Digits(rawReader,digitsArr,fPedestalData,digitsTrg);
246 //____________________________________________________________________________
247 void AliEMCALReconstructor::FillESD(TTree* digitsTree, TTree* clustersTree,
248 AliESDEvent* esd) const
250 // Called by AliReconstruct after Reconstruct() and global tracking and vertexing
252 // Works on the current event
253 // printf(" ## AliEMCALReconstructor::FillESD() is started ### \n ");
256 //######################################################
257 //#########Calculate trigger and set trigger info###########
258 //######################################################
261 // tr.SetPatchSize(1); // create 4x4 patches
262 tr.SetSimulation(kFALSE); // Reconstruction mode
263 tr.SetDigitsList(fgDigitsArr);
264 // Get VZERO total multiplicity for jet trigger simulation
265 // The simulation of jey trigger will be incorrect if no VZERO data
267 AliESDVZERO* vZero = esd->GetVZEROData();
269 tr.SetVZER0Multiplicity(vZero->GetMTotV0A() + vZero->GetMTotV0C());
274 Float_t maxAmp2x2 = tr.Get2x2MaxAmplitude();
275 Float_t maxAmpnxn = tr.GetnxnMaxAmplitude();
276 Float_t ampOutOfPatch2x2 = tr.Get2x2AmpOutOfPatch() ;
277 Float_t ampOutOfPatchnxn = tr.GetnxnAmpOutOfPatch() ;
279 Int_t iSM2x2 = tr.Get2x2SuperModule();
280 Int_t iSMnxn = tr.GetnxnSuperModule();
281 Int_t iModulePhi2x2 = tr.Get2x2ModulePhi();
282 Int_t iModulePhinxn = tr.GetnxnModulePhi();
283 Int_t iModuleEta2x2 = tr.Get2x2ModuleEta();
284 Int_t iModuleEtanxn = tr.GetnxnModuleEta();
286 AliDebug(2, Form("Trigger 2x2 max amp %f, out amp %f, SM %d, iphi %d ieta %d", maxAmp2x2, ampOutOfPatch2x2, iSM2x2,iModulePhi2x2, iModuleEta2x2));
287 AliDebug(2, Form("Trigger 4x4 max amp %f , out amp %f, SM %d, iphi %d, ieta %d", maxAmpnxn, ampOutOfPatchnxn, iSMnxn,iModulePhinxn, iModuleEtanxn));
289 TVector3 pos2x2(-1,-1,-1);
290 TVector3 posnxn(-1,-1,-1);
292 Int_t iAbsId2x2 = fGeom->GetAbsCellIdFromCellIndexes( iSM2x2, iModulePhi2x2, iModuleEta2x2) ; // should be changed to Module
293 Int_t iAbsIdnxn = fGeom->GetAbsCellIdFromCellIndexes( iSMnxn, iModulePhinxn, iModuleEtanxn) ;
294 fGeom->GetGlobal(iAbsId2x2, pos2x2);
295 fGeom->GetGlobal(iAbsIdnxn, posnxn);
296 //printf(" iAbsId2x2 %i iAbsIdnxn %i \n", iAbsId2x2, iAbsIdnxn);
298 TArrayF triggerPosition(6);
299 triggerPosition[0] = pos2x2(0) ;
300 triggerPosition[1] = pos2x2(1) ;
301 triggerPosition[2] = pos2x2(2) ;
302 triggerPosition[3] = posnxn(0) ;
303 triggerPosition[4] = posnxn(1) ;
304 triggerPosition[5] = posnxn(2) ;
305 //printf(" triggerPosition ");
306 //for(int i=0; i<6; i++) printf(" %i %f : ", i, triggerPosition[i]);
308 TArrayF triggerAmplitudes(4);
309 triggerAmplitudes[0] = maxAmp2x2 ;
310 triggerAmplitudes[1] = ampOutOfPatch2x2 ;
311 triggerAmplitudes[2] = maxAmpnxn ;
312 triggerAmplitudes[3] = ampOutOfPatchnxn ;
313 //printf("\n triggerAmplitudes ");
314 //for(int i=0; i<4; i++) printf(" %i %f : ", i, triggerAmplitudes[i]);
320 if(tr.GetNJetThreshold()>0) {
322 Int_t n0 = triggerPosition.GetSize();
323 const TH2F *hpatch = tr.GetJetMatrixE();
324 triggerPosition.Set(n0 + 2);
325 for(Int_t i=0; i<2; i++) triggerPosition[n0+i] = hpatch->GetMean(i+1);
327 n0 = triggerAmplitudes.GetSize();
328 triggerAmplitudes.Set(n0 + tr.GetNJetThreshold());
329 Double_t *ampJet = tr.GetL1JetThresholds();
330 for(Int_t i=0; i<tr.GetNJetThreshold(); i++){
331 triggerAmplitudes[n0 + i] = Float_t(ampJet[i]);
334 esd->AddEMCALTriggerPosition(triggerPosition);
335 esd->AddEMCALTriggerAmplitudes(triggerAmplitudes);
336 // Fill trigger hists
337 AliEMCALHistoUtilities::FillTriggersListOfHists(fList,&triggerPosition,&triggerAmplitudes);
339 //########################################
340 //##############Fill CaloCells###############
341 //########################################
343 TClonesArray *digits = new TClonesArray("AliEMCALDigit",1000);
344 TBranch *branchdig = digitsTree->GetBranch("EMCAL");
346 AliError("can't get the branch with the EMCAL digits !");
349 branchdig->SetAddress(&digits);
350 digitsTree->GetEvent(0);
351 Int_t nDigits = digits->GetEntries(), idignew = 0 ;
352 AliDebug(1,Form("%d digits",nDigits));
354 AliESDCaloCells &emcCells = *(esd->GetEMCALCells());
355 emcCells.CreateContainer(nDigits);
356 emcCells.SetType(AliESDCaloCells::kEMCALCell);
358 for (Int_t idig = 0 ; idig < nDigits ; idig++) {
359 const AliEMCALDigit * dig = (const AliEMCALDigit*)digits->At(idig);
360 if(dig->GetAmp() > 0 ){
361 energy = (static_cast<AliEMCALClusterizerv1*> (fgClusterizer))->Calibrate(dig->GetAmp(),dig->GetId());
362 if(energy > 0){ //Digits tagged as bad (dead, hot, not alive) are set to 0 in calibrate, remove them
363 emcCells.SetCell(idignew,dig->GetId(),energy, dig->GetTime());
368 emcCells.SetNumberOfCells(idignew);
371 //------------------------------------------------------------
372 //-----------------CLUSTERS-----------------------------
373 //------------------------------------------------------------
374 TObjArray *clusters = new TObjArray(100);
375 TBranch *branch = clustersTree->GetBranch("EMCALECARP");
376 branch->SetAddress(&clusters);
377 clustersTree->GetEvent(0);
379 Int_t nClusters = clusters->GetEntries(), nClustersNew=0;
380 AliDebug(1,Form("%d clusters",nClusters));
381 esd->SetFirstEMCALCluster(esd->GetNumberOfCaloClusters()); // Put after Phos clusters
384 //######################################################
385 //#######################TRACK MATCHING###############
386 //######################################################
387 //Fill list of integers, each one is index of track to which the cluster belongs.
389 // step 1 - initialize array of matched track indexes
390 Int_t *matchedTrack = new Int_t[nClusters];
391 for (Int_t iclus = 0; iclus < nClusters; iclus++)
392 matchedTrack[iclus] = -1; // neg. index --> no matched track
394 // step 2, change the flag for all matched clusters found in tracks
395 Int_t iemcalMatch = -1;
396 Int_t endtpc = esd->GetNumberOfTracks();
397 for (Int_t itrack = 0; itrack < endtpc; itrack++) {
398 AliESDtrack * track = esd->GetTrack(itrack) ; // retrieve track
399 iemcalMatch = track->GetEMCALcluster();
400 if(iemcalMatch >= 0) matchedTrack[iemcalMatch] = itrack;
403 //########################################
404 //##############Fill CaloClusters#############
405 //########################################
406 esd->SetNumberOfEMCALClusters(nClusters);
407 for (Int_t iClust = 0 ; iClust < nClusters ; iClust++) {
408 const AliEMCALRecPoint * clust = (const AliEMCALRecPoint*)clusters->At(iClust);
409 //if(clust->GetClusterType()== AliESDCaloCluster::kEMCALClusterv1) nRP++; else nPC++;
410 if (Debug()) clust->Print();
411 // Get information from EMCAL reconstruction points
414 clust->GetGlobalPosition(gpos);
415 for (Int_t ixyz=0; ixyz<3; ixyz++)
416 xyz[ixyz] = gpos[ixyz];
418 clust->GetElipsAxis(elipAxis);
419 //Create digits lists
420 Int_t cellMult = clust->GetMultiplicity();
421 //TArrayS digiList(digitMult);
422 Float_t *amplFloat = clust->GetEnergiesList();
423 Int_t *digitInts = clust->GetAbsId();
424 TArrayS absIdList(cellMult);
425 TArrayD fracList(cellMult);
427 Int_t newCellMult = 0;
428 for (Int_t iCell=0; iCell<cellMult; iCell++) {
429 if (amplFloat[iCell] > 0) {
430 absIdList[newCellMult] = (UShort_t)(digitInts[iCell]);
431 //Uncomment when unfolding is done
432 //if(emcCells.GetCellAmplitude(digitInts[iCell])>0)
433 //fracList[newCellMult] = amplFloat[iCell]/(emcCells.GetCellAmplitude(digitInts[iCell])*calibration);//get cell calibration value
435 fracList[newCellMult] = 0;
440 absIdList.Set(newCellMult);
441 fracList.Set(newCellMult);
443 if(newCellMult > 0) { // accept cluster if it has some digit
446 Int_t parentMult = 0;
447 Int_t *parentList = clust->GetParents(parentMult);
448 // fills the ESDCaloCluster
449 AliESDCaloCluster * ec = new AliESDCaloCluster() ;
450 ec->SetClusterType(AliESDCaloCluster::kEMCALClusterv1);
451 ec->SetPosition(xyz);
452 ec->SetE(clust->GetEnergy());
454 //Distance to the nearest bad crystal
455 ec->SetDistanceToBadChannel(clust->GetDistanceToBadTower());
457 ec->SetNCells(newCellMult);
458 //Change type of list from short to ushort
459 UShort_t *newAbsIdList = new UShort_t[newCellMult];
460 Double_t *newFracList = new Double_t[newCellMult];
461 for(Int_t i = 0; i < newCellMult ; i++) {
462 newAbsIdList[i]=absIdList[i];
463 newFracList[i]=fracList[i];
465 ec->SetCellsAbsId(newAbsIdList);
466 ec->SetCellsAmplitudeFraction(newFracList);
467 ec->SetClusterDisp(clust->GetDispersion());
468 ec->SetClusterChi2(-1); //not yet implemented
469 ec->SetM02(elipAxis[0]*elipAxis[0]) ;
470 ec->SetM20(elipAxis[1]*elipAxis[1]) ;
471 ec->SetTOF(clust->GetTime()) ; //time-of-fligh
472 ec->SetNExMax(clust->GetNExMax()); //number of local maxima
473 TArrayI arrayTrackMatched(1);// Only one track, temporal solution.
474 arrayTrackMatched[0]= matchedTrack[iClust];
475 ec->AddTracksMatched(arrayTrackMatched);
477 TArrayI arrayParents(parentMult,parentList);
478 ec->AddLabels(arrayParents);
480 // add the cluster to the esd object
481 esd->AddCaloCluster(ec);
483 delete [] newAbsIdList ;
484 delete [] newFracList ;
486 } // cycle on clusters
488 delete [] matchedTrack;
490 esd->SetNumberOfEMCALClusters(nClustersNew);
491 //if(nClustersNew != nClusters)
492 //printf(" ##### nClusters %i -> new %i ##### \n", nClusters, nClustersNew );
494 //Fill ESDCaloCluster with PID weights
495 AliEMCALPID *pid = new AliEMCALPID;
496 //pid->SetPrintInfo(kTRUE);
497 pid->SetReconstructor(kTRUE);
504 // printf(" ## AliEMCALReconstructor::FillESD() is ended : ncl %i -> %i ### \n ",nClusters, nClustersNew);
506 //Store EMCAL misalignment matrixes
507 FillMisalMatrixes(esd) ;
511 //==================================================================================
512 void AliEMCALReconstructor::FillMisalMatrixes(AliESDEvent* esd)const{
513 //Store EMCAL matrixes in ESD Header
515 //Check, if matrixes was already stored
516 for(Int_t sm = 0 ; sm < 12; sm++){
517 if(esd->GetEMCALMatrix(sm)!=0)
521 //Create and store matrixes
523 AliError("Can not store misal. matrixes: no gGeoManager! \n") ;
526 //Note, that owner of copied marixes will be header
528 TGeoHMatrix * m = 0x0;
529 for(Int_t sm = 0; sm < 12; sm++){
530 sprintf(path,"/ALIC_1/XEN1_1/SMOD_%d",sm+1) ; //In Geometry modules numbered 1,2,.,5
531 if(sm >= 10) sprintf(path,"/ALIC_1/XEN1_1/SM10_%d",sm-10+1) ;
533 if (gGeoManager->CheckPath(path)){
534 m = gGeoManager->GetCurrentMatrix() ;
535 esd->SetEMCALMatrix(new TGeoHMatrix(*m),sm) ;
538 esd->SetEMCALMatrix(NULL,sm) ;
545 //__________________________________________________________________________
546 void AliEMCALReconstructor::ReadDigitsArrayFromTree(TTree *digitsTree) const
548 // See AliEMCALClusterizer::SetInput(TTree *digitsTree);
550 // Clear previous digits
551 fgDigitsArr->Delete();
554 // Read the digits from the input tree
555 TBranch *branch = digitsTree->GetBranch("EMCAL");
557 AliError("can't get the branch with the EMCAL digits !");
560 fgDigitsArr = new TClonesArray("AliEMCALDigit",100);
561 branch->SetAddress(&fgDigitsArr);