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 *
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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 "AliESDVZERO.h"
57 #include "AliCDBManager.h"
58 #include "AliRunLoader.h"
60 #include "AliEMCALTriggerData.h"
61 #include "AliEMCALTriggerElectronics.h"
62 #include "AliVZEROLoader.h"
64 ClassImp(AliEMCALReconstructor)
66 const AliEMCALRecParam* AliEMCALReconstructor::fgkRecParam = 0; // EMCAL rec. parameters
67 AliEMCALRawUtils* AliEMCALReconstructor::fgRawUtils = 0; // EMCAL raw utilities class
68 AliEMCALClusterizer* AliEMCALReconstructor::fgClusterizer = 0; // EMCAL clusterizer class
69 TClonesArray* AliEMCALReconstructor::fgDigitsArr = 0; // shoud read just once at event
70 AliEMCALTriggerElectronics* AliEMCALReconstructor::fgTriggerProcessor = 0x0;
71 //____________________________________________________________________________
72 AliEMCALReconstructor::AliEMCALReconstructor()
73 : fDebug(kFALSE), fList(0), fGeom(0),fCalibData(0),fPedestalData(0)
77 fgRawUtils = new AliEMCALRawUtils;
79 //To make sure we match with the geometry in a simulation file,
80 //let's try to get it first. If not, take the default geometry
81 AliRunLoader *rl = AliRunLoader::Instance();
82 if (rl->GetAliRun() && rl->GetAliRun()->GetDetector("EMCAL")) {
83 fGeom = dynamic_cast<AliEMCAL*>(rl->GetAliRun()->GetDetector("EMCAL"))->GetGeometry();
85 AliInfo(Form("Using default geometry in reconstruction"));
86 fGeom = AliEMCALGeometry::GetInstance(AliEMCALGeometry::GetDefaultGeometryName());
89 //Get calibration parameters
92 AliCDBEntry *entry = (AliCDBEntry*)
93 AliCDBManager::Instance()->Get("EMCAL/Calib/Data");
94 if (entry) fCalibData = (AliEMCALCalibData*) entry->GetObject();
98 AliFatal("Calibration parameters not found in CDB!");
100 //Get calibration parameters
103 AliCDBEntry *entry = (AliCDBEntry*)
104 AliCDBManager::Instance()->Get("EMCAL/Calib/Pedestals");
105 if (entry) fPedestalData = (AliCaloCalibPedestal*) entry->GetObject();
109 AliFatal("Dead map not found in CDB!");
112 //Init the clusterizer with geometry and calibration pointers, avoid doing it twice.
113 fgClusterizer = new AliEMCALClusterizerv1(fGeom, fCalibData,fPedestalData);
115 if(!fGeom) AliFatal(Form("Could not get geometry!"));
117 fgTriggerProcessor = new AliEMCALTriggerElectronics();
120 //____________________________________________________________________________
121 AliEMCALReconstructor::~AliEMCALReconstructor()
126 delete fgClusterizer;
127 delete fgTriggerProcessor;
129 AliCodeTimer::Instance()->Print();
132 // //____________________________________________________________________________
133 // void AliEMCALReconstructor::Init()
135 // // Trigger hists - Oct 24, 2007
136 // fList = AliEMCALHistoUtilities::GetTriggersListOfHists(kTRUE);
139 //____________________________________________________________________________
140 void AliEMCALReconstructor::Reconstruct(TTree* digitsTree, TTree* clustersTree) const
142 // method called by AliReconstruction;
143 // Only the clusterization is performed,; the rest of the reconstruction is done in FillESD because the track
144 // segment maker needs access to the AliESD object to retrieve the tracks reconstructed by
145 // the global tracking.
146 // Works on the current event.
148 AliCodeTimerAuto("",0)
150 ReadDigitsArrayFromTree(digitsTree);
151 fgClusterizer->InitParameters();
152 fgClusterizer->SetOutput(clustersTree);
154 AliEMCALTriggerData* trgData = new AliEMCALTriggerData();
156 Int_t bufferSize = 32000;
158 if (TBranch* triggerBranch = clustersTree->GetBranch("EMTRG"))
159 triggerBranch->SetAddress(&trgData);
161 clustersTree->Branch("EMTRG","AliEMCALTriggerData",&trgData,bufferSize);
163 AliVZEROLoader* vzeroLoader = dynamic_cast<AliVZEROLoader*>(AliRunLoader::Instance()->GetDetectorLoader("VZERO"));
169 vzeroLoader->LoadDigits("READ");
170 treeV0 = vzeroLoader->TreeD();
173 TClonesArray *trgDigits = new TClonesArray("AliEMCALRawDigit",1000);
174 TBranch *branchdig = digitsTree->GetBranch("EMTRG");
177 AliError("Can't get the branch with the EMCAL trigger digits !");
181 branchdig->SetAddress(&trgDigits);
182 branchdig->GetEntry(0);
184 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();
204 vzeroLoader->UnloadDigits();
207 clustersTree->Fill();
212 //____________________________________________________________________________
213 void AliEMCALReconstructor::ConvertDigits(AliRawReader* rawReader, TTree* digitsTree) const
216 // Conversion from raw data to
218 // Works on a single-event basis
222 TClonesArray *digitsArr = new TClonesArray("AliEMCALDigit",200);
223 TClonesArray *digitsTrg = new TClonesArray("AliEMCALRawDigit", 200);
225 Int_t bufsize = 32000;
226 digitsTree->Branch("EMCAL", &digitsArr, bufsize);
227 digitsTree->Branch("EMTRG", &digitsTrg, bufsize);
229 //must be done here because, in constructor, option is not yet known
230 fgRawUtils->SetOption(GetOption());
232 fgRawUtils->SetRawFormatHighLowGainFactor(GetRecParam()->GetHighLowGainFactor());
233 fgRawUtils->SetRawFormatOrder(GetRecParam()->GetOrderParameter());
234 fgRawUtils->SetRawFormatTau(GetRecParam()->GetTau());
235 fgRawUtils->SetNoiseThreshold(GetRecParam()->GetNoiseThreshold());
236 fgRawUtils->SetNPedSamples(GetRecParam()->GetNPedSamples());
237 fgRawUtils->SetRemoveBadChannels(GetRecParam()->GetRemoveBadChannels());
238 fgRawUtils->SetFittingAlgorithm(GetRecParam()->GetFittingAlgorithm());
239 fgRawUtils->SetFALTROUsage(GetRecParam()->UseFALTRO());
241 fgRawUtils->Raw2Digits(rawReader,digitsArr,fPedestalData,digitsTrg);
252 //____________________________________________________________________________
253 void AliEMCALReconstructor::FillESD(TTree* digitsTree, TTree* clustersTree,
254 AliESDEvent* esd) const
256 // Called by AliReconstruct after Reconstruct() and global tracking and vertexing
258 // Works on the current event
259 // printf(" ## AliEMCALReconstructor::FillESD() is started ### \n ");
262 //######################################################
263 //#########Calculate trigger and set trigger info###########
264 //######################################################
265 // Obsolete, to be changed with new trigger emulator when consensus is achieved about what is stored in ESDs.
267 // tr.SetPatchSize(1); // create 4x4 patches
268 tr.SetSimulation(kFALSE); // Reconstruction mode
269 tr.SetDigitsList(fgDigitsArr);
270 // Get VZERO total multiplicity for jet trigger simulation
271 // The simulation of jey trigger will be incorrect if no VZERO data
273 AliESDVZERO* vZero = esd->GetVZEROData();
275 tr.SetVZER0Multiplicity(vZero->GetMTotV0A() + vZero->GetMTotV0C());
280 Float_t maxAmp2x2 = tr.Get2x2MaxAmplitude();
281 Float_t maxAmpnxn = tr.GetnxnMaxAmplitude();
282 Float_t ampOutOfPatch2x2 = tr.Get2x2AmpOutOfPatch() ;
283 Float_t ampOutOfPatchnxn = tr.GetnxnAmpOutOfPatch() ;
285 Int_t iSM2x2 = tr.Get2x2SuperModule();
286 Int_t iSMnxn = tr.GetnxnSuperModule();
287 Int_t iModulePhi2x2 = tr.Get2x2ModulePhi();
288 Int_t iModulePhinxn = tr.GetnxnModulePhi();
289 Int_t iModuleEta2x2 = tr.Get2x2ModuleEta();
290 Int_t iModuleEtanxn = tr.GetnxnModuleEta();
292 AliDebug(2, Form("Trigger 2x2 max amp %f, out amp %f, SM %d, iphi %d ieta %d", maxAmp2x2, ampOutOfPatch2x2, iSM2x2,iModulePhi2x2, iModuleEta2x2));
293 AliDebug(2, Form("Trigger 4x4 max amp %f , out amp %f, SM %d, iphi %d, ieta %d", maxAmpnxn, ampOutOfPatchnxn, iSMnxn,iModulePhinxn, iModuleEtanxn));
295 TVector3 pos2x2(-1,-1,-1);
296 TVector3 posnxn(-1,-1,-1);
298 Int_t iAbsId2x2 = fGeom->GetAbsCellIdFromCellIndexes( iSM2x2, iModulePhi2x2, iModuleEta2x2) ; // should be changed to Module
299 Int_t iAbsIdnxn = fGeom->GetAbsCellIdFromCellIndexes( iSMnxn, iModulePhinxn, iModuleEtanxn) ;
300 fGeom->GetGlobal(iAbsId2x2, pos2x2);
301 fGeom->GetGlobal(iAbsIdnxn, posnxn);
302 //printf(" iAbsId2x2 %i iAbsIdnxn %i \n", iAbsId2x2, iAbsIdnxn);
304 TArrayF triggerPosition(6);
305 triggerPosition[0] = pos2x2(0) ;
306 triggerPosition[1] = pos2x2(1) ;
307 triggerPosition[2] = pos2x2(2) ;
308 triggerPosition[3] = posnxn(0) ;
309 triggerPosition[4] = posnxn(1) ;
310 triggerPosition[5] = posnxn(2) ;
311 //printf(" triggerPosition ");
312 //for(int i=0; i<6; i++) printf(" %i %f : ", i, triggerPosition[i]);
314 TArrayF triggerAmplitudes(4);
315 triggerAmplitudes[0] = maxAmp2x2 ;
316 triggerAmplitudes[1] = ampOutOfPatch2x2 ;
317 triggerAmplitudes[2] = maxAmpnxn ;
318 triggerAmplitudes[3] = ampOutOfPatchnxn ;
319 //printf("\n triggerAmplitudes ");
320 //for(int i=0; i<4; i++) printf(" %i %f : ", i, triggerAmplitudes[i]);
326 if(tr.GetNJetThreshold()>0) {
328 Int_t n0 = triggerPosition.GetSize();
329 const TH2F *hpatch = tr.GetJetMatrixE();
330 triggerPosition.Set(n0 + 2);
331 for(Int_t i=0; i<2; i++) triggerPosition[n0+i] = hpatch->GetMean(i+1);
333 n0 = triggerAmplitudes.GetSize();
334 triggerAmplitudes.Set(n0 + tr.GetNJetThreshold());
335 Double_t *ampJet = tr.GetL1JetThresholds();
336 for(Int_t i=0; i<tr.GetNJetThreshold(); i++){
337 triggerAmplitudes[n0 + i] = Float_t(ampJet[i]);
340 esd->AddEMCALTriggerPosition(triggerPosition);
341 esd->AddEMCALTriggerAmplitudes(triggerAmplitudes);
342 // Fill trigger hists
343 // AliEMCALHistoUtilities::FillTriggersListOfHists(fList,&triggerPosition,&triggerAmplitudes);
345 //########################################
346 //##############Fill CaloCells###############
347 //########################################
349 TClonesArray *digits = new TClonesArray("AliEMCALDigit",1000);
350 TBranch *branchdig = digitsTree->GetBranch("EMCAL");
352 AliError("can't get the branch with the EMCAL digits !");
355 branchdig->SetAddress(&digits);
356 digitsTree->GetEvent(0);
357 Int_t nDigits = digits->GetEntries(), idignew = 0 ;
358 AliDebug(1,Form("%d digits",nDigits));
360 AliESDCaloCells &emcCells = *(esd->GetEMCALCells());
361 emcCells.CreateContainer(nDigits);
362 emcCells.SetType(AliESDCaloCells::kEMCALCell);
364 for (Int_t idig = 0 ; idig < nDigits ; idig++) {
365 const AliEMCALDigit * dig = (const AliEMCALDigit*)digits->At(idig);
366 if(dig->GetAmplitude() > 0 ){
367 energy = (static_cast<AliEMCALClusterizerv1*> (fgClusterizer))->Calibrate(dig->GetAmplitude(),dig->GetTime(),dig->GetId()); //TimeR or Time?
368 if(energy > 0){ //Digits tagged as bad (dead, hot, not alive) are set to 0 in calibrate, remove them
369 emcCells.SetCell(idignew,dig->GetId(),energy, dig->GetTime());
374 emcCells.SetNumberOfCells(idignew);
377 //------------------------------------------------------------
378 //-----------------CLUSTERS-----------------------------
379 //------------------------------------------------------------
380 clustersTree->SetBranchStatus("*",0); //disable all branches
381 clustersTree->SetBranchStatus("EMCALECARP",1); //Enable only the branch we need
383 TObjArray *clusters = new TObjArray(100);
384 TBranch *branch = clustersTree->GetBranch("EMCALECARP");
385 branch->SetAddress(&clusters);
387 //clustersTree->GetEvent(0);
389 Int_t nClusters = clusters->GetEntries(), nClustersNew=0;
390 AliDebug(1,Form("%d clusters",nClusters));
392 //######################################################
393 //#######################TRACK MATCHING###############
394 //######################################################
395 //Fill list of integers, each one is index of track to which the cluster belongs.
397 // step 1 - initialize array of matched track indexes
398 Int_t *matchedTrack = new Int_t[nClusters];
399 for (Int_t iclus = 0; iclus < nClusters; iclus++)
400 matchedTrack[iclus] = -1; // neg. index --> no matched track
402 // step 2, change the flag for all matched clusters found in tracks
403 Int_t iemcalMatch = -1;
404 Int_t endtpc = esd->GetNumberOfTracks();
405 for (Int_t itrack = 0; itrack < endtpc; itrack++) {
406 AliESDtrack * track = esd->GetTrack(itrack) ; // retrieve track
407 iemcalMatch = track->GetEMCALcluster();
408 if(iemcalMatch >= 0) matchedTrack[iemcalMatch] = itrack;
411 //########################################
412 //##############Fill CaloClusters#############
413 //########################################
414 for (Int_t iClust = 0 ; iClust < nClusters ; iClust++) {
415 const AliEMCALRecPoint * clust = (const AliEMCALRecPoint*)clusters->At(iClust);
416 //if(clust->GetClusterType()== AliESDCaloCluster::kEMCALClusterv1) nRP++; else nPC++;
417 if (Debug()) clust->Print();
418 // Get information from EMCAL reconstruction points
421 clust->GetGlobalPosition(gpos);
422 for (Int_t ixyz=0; ixyz<3; ixyz++)
423 xyz[ixyz] = gpos[ixyz];
425 clust->GetElipsAxis(elipAxis);
426 //Create digits lists
427 Int_t cellMult = clust->GetMultiplicity();
428 //TArrayS digiList(digitMult);
429 Float_t *amplFloat = clust->GetEnergiesList();
430 Int_t *digitInts = clust->GetAbsId();
431 TArrayS absIdList(cellMult);
432 TArrayD fracList(cellMult);
434 Int_t newCellMult = 0;
435 for (Int_t iCell=0; iCell<cellMult; iCell++) {
436 if (amplFloat[iCell] > 0) {
437 absIdList[newCellMult] = (UShort_t)(digitInts[iCell]);
438 //Uncomment when unfolding is done
439 //if(emcCells.GetCellAmplitude(digitInts[iCell])>0)
440 //fracList[newCellMult] = amplFloat[iCell]/(emcCells.GetCellAmplitude(digitInts[iCell])*calibration);//get cell calibration value
442 fracList[newCellMult] = 0;
447 absIdList.Set(newCellMult);
448 fracList.Set(newCellMult);
450 if(newCellMult > 0) { // accept cluster if it has some digit
453 Int_t parentMult = 0;
454 Int_t *parentList = clust->GetParents(parentMult);
455 // fills the ESDCaloCluster
456 AliESDCaloCluster * ec = new AliESDCaloCluster() ;
457 ec->SetClusterType(AliESDCaloCluster::kEMCALClusterv1);
458 ec->SetPosition(xyz);
459 ec->SetE(clust->GetEnergy());
461 //Distance to the nearest bad crystal
462 ec->SetDistanceToBadChannel(clust->GetDistanceToBadTower());
464 ec->SetNCells(newCellMult);
465 //Change type of list from short to ushort
466 UShort_t *newAbsIdList = new UShort_t[newCellMult];
467 Double_t *newFracList = new Double_t[newCellMult];
468 for(Int_t i = 0; i < newCellMult ; i++) {
469 newAbsIdList[i]=absIdList[i];
470 newFracList[i]=fracList[i];
472 ec->SetCellsAbsId(newAbsIdList);
473 ec->SetCellsAmplitudeFraction(newFracList);
474 ec->SetClusterDisp(clust->GetDispersion());
475 ec->SetClusterChi2(-1); //not yet implemented
476 ec->SetM02(elipAxis[0]*elipAxis[0]) ;
477 ec->SetM20(elipAxis[1]*elipAxis[1]) ;
478 ec->SetTOF(clust->GetTime()) ; //time-of-fligh
479 ec->SetNExMax(clust->GetNExMax()); //number of local maxima
480 TArrayI arrayTrackMatched(1);// Only one track, temporal solution.
481 arrayTrackMatched[0]= matchedTrack[iClust];
482 ec->AddTracksMatched(arrayTrackMatched);
484 TArrayI arrayParents(parentMult,parentList);
485 ec->AddLabels(arrayParents);
487 // add the cluster to the esd object
488 esd->AddCaloCluster(ec);
490 delete [] newAbsIdList ;
491 delete [] newFracList ;
493 } // cycle on clusters
495 delete [] matchedTrack;
497 //Fill ESDCaloCluster with PID weights
498 AliEMCALPID *pid = new AliEMCALPID;
499 //pid->SetPrintInfo(kTRUE);
500 pid->SetReconstructor(kTRUE);
507 //Store EMCAL misalignment matrixes
508 FillMisalMatrixes(esd) ;
512 //==================================================================================
513 void AliEMCALReconstructor::FillMisalMatrixes(AliESDEvent* esd)const{
514 //Store EMCAL matrixes in ESD Header
516 //Check, if matrixes was already stored
517 for(Int_t sm = 0 ; sm < fGeom->GetNumberOfSuperModules(); sm++){
518 if(esd->GetEMCALMatrix(sm)!=0)
522 //Create and store matrixes
524 AliError("Can not store misal. matrixes: no gGeoManager! \n") ;
527 //Note, that owner of copied marixes will be header
529 TGeoHMatrix * m = 0x0;
530 for(Int_t sm = 0; sm < fGeom->GetNumberOfSuperModules(); sm++){
531 sprintf(path,"/ALIC_1/XEN1_1/SMOD_%d",sm+1) ; //In Geometry modules numbered 1,2,.,5
532 if(sm >= 10) sprintf(path,"/ALIC_1/XEN1_1/SM10_%d",sm-10+1) ;
534 if (gGeoManager->CheckPath(path)){
535 gGeoManager->cd(path);
536 m = gGeoManager->GetCurrentMatrix() ;
537 // printf("================================================= \n");
538 // printf("AliEMCALReconstructor::FixMisalMatrixes(), sm %d, \n",sm);
540 esd->SetEMCALMatrix(new TGeoHMatrix(*m),sm) ;
541 // printf("================================================= \n");
544 esd->SetEMCALMatrix(NULL,sm) ;
551 //__________________________________________________________________________
552 void AliEMCALReconstructor::ReadDigitsArrayFromTree(TTree *digitsTree) const
554 // See AliEMCALClusterizer::SetInput(TTree *digitsTree);
556 // Clear previous digits
557 fgDigitsArr->Delete();
560 // Read the digits from the input tree
561 TBranch *branch = digitsTree->GetBranch("EMCAL");
563 AliError("can't get the branch with the EMCAL digits !");
566 fgDigitsArr = new TClonesArray("AliEMCALDigit",100);
567 branch->SetAddress(&fgDigitsArr);