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14 **************************************************************************/
18 //-- Author: Yves Schutz (SUBATECH) & Dmitri Peressounko (SUBATECH & Kurchatov Institute)
19 // August 2002 Yves Schutz: clone PHOS as closely as possible and intoduction
20 // of new IO (à la PHOS)
21 // Mar 2007, Aleksei Pavlinov - new algoritmh of pseudo clusters
22 //////////////////////////////////////////////////////////////////////////////
23 // Clusterization class. Performs clusterization (collects neighbouring active cells) and
24 // unfolds the clusters having several local maxima.
25 // Results are stored in TreeR#, branches EMCALTowerRP (EMC recPoints),
26 // EMCALPreShoRP (CPV RecPoints) and AliEMCALClusterizer (Clusterizer with all
27 // parameters including input digits branch title, thresholds etc.)
28 // This TTask is normally called from Reconstructioner, but can as well be used in
31 // root [0] AliEMCALClusterizerv1 * cl = new AliEMCALClusterizerv1("galice.root")
32 // Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
33 // //reads gAlice from header file "..."
34 // root [1] cl->ExecuteTask()
35 // //finds RecPoints in all events stored in galice.root
36 // root [2] cl->SetDigitsBranch("digits2")
37 // //sets another title for Digitis (input) branch
38 // root [3] cl->SetRecPointsBranch("recp2")
39 // //sets another title four output branches
40 // root [4] cl->SetTowerLocalMaxCut(0.03)
41 // //set clusterization parameters
42 // root [5] cl->ExecuteTask("deb all time")
43 // //once more finds RecPoints options are
44 // // deb - print number of found rec points
45 // // deb all - print number of found RecPoints and some their characteristics
46 // // time - print benchmarking results
48 // --- ROOT system ---
59 #include <TBenchmark.h>
63 // --- Standard library ---
66 // --- AliRoot header files ---
67 #include "AliRunLoader.h"
70 #include "AliEMCALLoader.h"
71 #include "AliEMCALClusterizerv1.h"
72 #include "AliEMCALRecPoint.h"
73 #include "AliEMCALDigit.h"
74 #include "AliEMCALDigitizer.h"
76 #include "AliEMCALGeometry.h"
77 #include "AliEMCALRawUtils.h"
78 #include "AliEMCALHistoUtilities.h"
79 #include "AliCDBManager.h"
82 #include "AliCDBEntry.h"
84 ClassImp(AliEMCALClusterizerv1)
86 //____________________________________________________________________________
87 AliEMCALClusterizerv1::AliEMCALClusterizerv1()
88 : AliEMCALClusterizer(),
89 fHists(0),fPointE(0),fPointL1(0),fPointL2(0),
90 fPointDis(0),fPointMult(0),fDigitAmp(0),fMaxE(0),
91 fMaxL1(0),fMaxL2(0),fMaxDis(0),fGeom(0),
94 fNumberOfECAClusters(0),fNTowerInGroup(0),fCalibData(0),
95 fADCchannelECA(0.),fADCpedestalECA(0.),fECAClusteringThreshold(0.),fECALocMaxCut(0.),
96 fECAW0(0.),fRecPointsInRun(0),fTimeCut(0.),fMinECut(0.)
98 // default ctor (to be used mainly by Streamer)
101 fGeom = AliEMCALGeometry::GetInstance(AliEMCALGeometry::GetDefaulGeometryName());
102 fGeom->GetTransformationForSM(); // Global <-> Local
105 //____________________________________________________________________________
106 AliEMCALClusterizerv1::AliEMCALClusterizerv1(const TString alirunFileName, const TString eventFolderName)
107 : AliEMCALClusterizer(alirunFileName, eventFolderName),
108 fHists(0),fPointE(0),fPointL1(0),fPointL2(0),
109 fPointDis(0),fPointMult(0),fDigitAmp(0),fMaxE(0),
110 fMaxL1(0),fMaxL2(0),fMaxDis(0),fGeom(0),
111 fDefaultInit(kFALSE),
113 fNumberOfECAClusters(0),fNTowerInGroup(0),fCalibData(0),
114 fADCchannelECA(0.),fADCpedestalECA(0.),fECAClusteringThreshold(0.),fECALocMaxCut(0.),
115 fECAW0(0.),fRecPointsInRun(0),fTimeCut(0.),fMinECut(0.)
117 // ctor with the indication of the file where header Tree and digits Tree are stored
123 //____________________________________________________________________________
124 AliEMCALClusterizerv1::AliEMCALClusterizerv1(const AliEMCALClusterizerv1& clus)
125 : AliEMCALClusterizer(clus),
127 fPointE(clus.fPointE),
128 fPointL1(clus.fPointL1),
129 fPointL2(clus.fPointL2),
130 fPointDis(clus.fPointDis),
131 fPointMult(clus.fPointMult),
132 fDigitAmp(clus.fDigitAmp),
136 fMaxDis(clus.fMaxDis),
138 fDefaultInit(clus.fDefaultInit),
139 fToUnfold(clus.fToUnfold),
140 fNumberOfECAClusters(clus.fNumberOfECAClusters),
141 fNTowerInGroup(clus.fNTowerInGroup),
142 fCalibData(clus.fCalibData),
143 fADCchannelECA(clus.fADCchannelECA),
144 fADCpedestalECA(clus.fADCpedestalECA),
145 fECAClusteringThreshold(clus.fECAClusteringThreshold),
146 fECALocMaxCut(clus.fECALocMaxCut),
148 fRecPointsInRun(clus.fRecPointsInRun),
149 fTimeCut(clus.fTimeCut),
150 fMinECut(clus.fMinECut)
155 //____________________________________________________________________________
156 AliEMCALClusterizerv1::~AliEMCALClusterizerv1()
161 //____________________________________________________________________________
162 const TString AliEMCALClusterizerv1::BranchName() const
167 //____________________________________________________________________________
168 Float_t AliEMCALClusterizerv1::Calibrate(Int_t amp, Int_t AbsId)
171 // Convert digitized amplitude into energy.
172 // Calibration parameters are taken from calibration data base for raw data,
173 // or from digitizer parameters for simulated data.
178 AliFatal("Did not get geometry from EMCALLoader") ;
187 Bool_t bCell = fGeom->GetCellIndex(AbsId, iSupMod, nModule, nIphi, nIeta) ;
189 fGeom->PrintGeometry();
190 Error("Calibrate()"," Wrong cell id number : %i", AbsId);
194 fGeom->GetCellPhiEtaIndexInSModule(iSupMod,nModule,nIphi, nIeta,iphi,ieta);
196 fADCchannelECA = fCalibData->GetADCchannel (iSupMod,ieta,iphi);
197 fADCpedestalECA = fCalibData->GetADCpedestal(iSupMod,ieta,iphi);
199 return -fADCpedestalECA + amp * fADCchannelECA ;
202 else //Return energy with default parameters if calibration is not available
203 return -fADCpedestalECA + amp * fADCchannelECA ;
207 //____________________________________________________________________________
208 void AliEMCALClusterizerv1::Exec(Option_t * option)
210 // Steering method to perform clusterization for the current event
213 if(strstr(option,"tim"))
214 gBenchmark->Start("EMCALClusterizer");
216 if(strstr(option,"print"))
219 AliRunLoader *rl = AliRunLoader::GetRunLoader();
220 AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(rl->GetDetectorLoader("EMCAL"));
222 //Get calibration parameters from file or digitizer default values.
223 GetCalibrationParameters() ;
226 fNumberOfECAClusters = 0;
228 if(strstr(option,"pseudo"))
229 MakeClusters("pseudo") ; //both types
231 MakeClusters("") ; //only the real clusters
238 if(strstr(option,"deb") || strstr(option,"all"))
239 PrintRecPoints(option) ;
241 AliDebug(1,Form("EMCAL Clusterizer found %d Rec Points",emcalLoader->RecPoints()->GetEntriesFast()));
243 //increment the total number of recpoints per run
244 fRecPointsInRun += emcalLoader->RecPoints()->GetEntriesFast() ;
246 if(strstr(option,"tim")){
247 gBenchmark->Stop("EMCALClusterizer");
248 printf("Exec took %f seconds for Clusterizing",
249 gBenchmark->GetCpuTime("EMCALClusterizer"));
253 //____________________________________________________________________________
254 Bool_t AliEMCALClusterizerv1::FindFit(AliEMCALRecPoint * emcRP, AliEMCALDigit ** maxAt, Float_t * maxAtEnergy,
255 Int_t nPar, Float_t * fitparameters) const
257 // Calls TMinuit to fit the energy distribution of a cluster with several maxima
258 // The initial values for fitting procedure are set equal to the positions of local maxima.
259 // Cluster will be fitted as a superposition of nPar/3 electromagnetic showers
261 AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::GetRunLoader()->GetDetectorLoader("EMCAL"));
262 TClonesArray *digits = emcalLoader->Digits();
264 gMinuit->mncler(); // Reset Minuit's list of paramters
265 gMinuit->SetPrintLevel(-1) ; // No Printout
266 gMinuit->SetFCN(AliEMCALClusterizerv1::UnfoldingChiSquare) ;
267 // To set the address of the minimization function
268 TList * toMinuit = new TList();
269 toMinuit->AddAt(emcRP,0) ;
270 toMinuit->AddAt(digits,1) ;
272 gMinuit->SetObjectFit(toMinuit) ; // To tranfer pointer to UnfoldingChiSquare
274 // filling initial values for fit parameters
275 AliEMCALDigit * digit ;
279 Int_t nDigits = (Int_t) nPar / 3 ;
283 for(iDigit = 0; iDigit < nDigits; iDigit++){
284 digit = maxAt[iDigit];
288 // have to be tune for TRD1; May 31,06
290 // fGeom->AbsToRelNumbering(digit->GetId(), relid) ; // obsolete method
291 // fGeom->PosInAlice(relid, x, z) ; // obsolete method
293 Float_t energy = maxAtEnergy[iDigit] ;
295 gMinuit->mnparm(index, "x", x, 0.1, 0, 0, ierflg) ;
298 Error("FindFit", "EMCAL Unfolding Unable to set initial value for fit procedure : x = %f", x ) ;
301 gMinuit->mnparm(index, "z", z, 0.1, 0, 0, ierflg) ;
304 Error("FindFit", "EMCAL Unfolding Unable to set initial value for fit procedure : z = %f", z) ;
307 gMinuit->mnparm(index, "Energy", energy , 0.05*energy, 0., 4.*energy, ierflg) ;
310 Error("FindFit", "EMCAL Unfolding Unable to set initial value for fit procedure : energy = %f", energy) ;
315 Double_t p0 = 0.1 ; // "Tolerance" Evaluation stops when EDM = 0.0001*p0 ; The number of function call slightly
320 gMinuit->mnexcm("SET STR", &p2, 0, ierflg) ; // force TMinuit to reduce function calls
321 gMinuit->mnexcm("SET GRA", &p1, 1, ierflg) ; // force TMinuit to use my gradient
322 gMinuit->SetMaxIterations(5);
323 gMinuit->mnexcm("SET NOW", &p2 , 0, ierflg) ; // No Warnings
325 gMinuit->mnexcm("MIGRAD", &p0, 0, ierflg) ; // minimize
327 if(ierflg == 4){ // Minimum not found
328 Error("FindFit", "EMCAL Unfolding Fit not converged, cluster abandoned " ) ;
331 for(index = 0; index < nPar; index++){
334 gMinuit->GetParameter(index, val, err) ; // Returns value and error of parameter index
335 fitparameters[index] = val ;
343 //____________________________________________________________________________
344 void AliEMCALClusterizerv1::GetCalibrationParameters()
346 // Set calibration parameters:
347 // if calibration database exists, they are read from database,
348 // otherwise, they are taken from digitizer.
350 // It is a user responsilibity to open CDB before reconstruction,
352 // AliCDBStorage* storage = AliCDBManager::Instance()->GetStorage("local://CalibDB");
354 //Check if calibration is stored in data base
356 AliEMCALLoader *emcalLoader =
357 dynamic_cast<AliEMCALLoader*>(AliRunLoader::GetRunLoader()->GetDetectorLoader("EMCAL"));
359 fCalibData =emcalLoader->CalibData();
363 //If calibration is not available use default parameters
365 if ( !emcalLoader->Digitizer() )
366 emcalLoader->LoadDigitizer();
367 AliEMCALDigitizer * dig = dynamic_cast<AliEMCALDigitizer*>(emcalLoader->Digitizer());
369 fADCchannelECA = dig->GetECAchannel() ;
370 fADCpedestalECA = dig->GetECApedestal();
374 //____________________________________________________________________________
375 void AliEMCALClusterizerv1::Init()
377 // Make all memory allocations which can not be done in default constructor.
378 // Attach the Clusterizer task to the list of EMCAL tasks
380 AliRunLoader *rl = AliRunLoader::GetRunLoader();
381 if (rl->GetAliRun() && rl->GetAliRun()->GetDetector("EMCAL"))
382 fGeom = dynamic_cast<AliEMCAL*>(rl->GetAliRun()->GetDetector("EMCAL"))->GetGeometry();
384 fGeom = AliEMCALGeometry::GetInstance(AliEMCALGeometry::GetDefaulGeometryName());
386 fGeom->GetTransformationForSM(); // Global <-> Local
387 AliInfo(Form("geom 0x%x",fGeom));
390 gMinuit = new TMinuit(100) ;
392 fHists = BookHists();
395 //____________________________________________________________________________
396 void AliEMCALClusterizerv1::InitParameters()
398 // Initializes the parameters for the Clusterizer
399 fNumberOfECAClusters = 0;
401 fNTowerInGroup = 36; //Produces maximum of 80 pseudoclusters per event
403 fECAClusteringThreshold = 0.5; // Best value for 2 GeV gamma merged with Ideal HIJING. Retune later?
404 fECALocMaxCut = 0.03; // ??
407 fTimeCut = 300e-9 ; // 300 ns time cut (to be tuned)
409 fRecPointsInRun = 0 ;
410 fMinECut = 0.45; // Best value for 2 GeV gamma merged with Ideal HIJING. Retune later?
414 // If reconstruction parameters are found in OCDB, take them from it
416 AliEMCALLoader *emcalLoader =
417 dynamic_cast<AliEMCALLoader*>(AliRunLoader::GetRunLoader()->GetDetectorLoader("EMCAL"));
418 AliEMCALRecParam *recParamDB = emcalLoader->RecParam();
419 if (recParamDB != 0) {
420 fECAClusteringThreshold = recParamDB->GetClusteringThreshold();
421 fECAW0 = recParamDB->GetW0();
422 fMinECut = recParamDB->GetMinECut();
423 AliDebug(1,Form("Reconstruction parameters were taken from OCDB: fECAClusteringThreshold=%.3f, fECAW=%.3f, fMinECut=%.3f",
424 fECAClusteringThreshold,fECAW0,fMinECut));
429 //____________________________________________________________________________
430 Int_t AliEMCALClusterizerv1::AreNeighbours(AliEMCALDigit * d1, AliEMCALDigit * d2) const
432 // Gives the neighbourness of two digits = 0 are not neighbour ; continue searching
434 // = 2 is in different SM; continue searching
435 // neighbours are defined as digits having at least a common vertex
436 // The order of d1 and d2 is important: first (d1) should be a digit already in a cluster
437 // which is compared to a digit (d2) not yet in a cluster
440 static Int_t nSupMod1=0, nModule1=0, nIphi1=0, nIeta1=0, iphi1=0, ieta1=0;
441 static Int_t nSupMod2=0, nModule2=0, nIphi2=0, nIeta2=0, iphi2=0, ieta2=0;
442 static Int_t rowdiff, coldiff;
445 fGeom->GetCellIndex(d1->GetId(), nSupMod1,nModule1,nIphi1,nIeta1);
446 fGeom->GetCellIndex(d2->GetId(), nSupMod2,nModule2,nIphi2,nIeta2);
447 if(nSupMod1 != nSupMod2) return 2; // different SM
449 fGeom->GetCellPhiEtaIndexInSModule(nSupMod1,nModule1,nIphi1,nIeta1, iphi1,ieta1);
450 fGeom->GetCellPhiEtaIndexInSModule(nSupMod2,nModule2,nIphi2,nIeta2, iphi2,ieta2);
452 rowdiff = TMath::Abs(iphi1 - iphi2);
453 coldiff = TMath::Abs(ieta1 - ieta2) ;
455 // neighbours with at least commom side; May 11, 2007
456 if ((coldiff==0 && abs(rowdiff)==1) || (rowdiff==0 && abs(coldiff)==1)) rv = 1;
458 if (gDebug == 2 && rv==1)
459 printf("AreNeighbours: neighbours=%d, id1=%d, relid1=%d,%d \n id2=%d, relid2=%d,%d \n",
460 rv, d1->GetId(), iphi1,ieta1, d2->GetId(), iphi2,ieta2);
465 //____________________________________________________________________________
466 Int_t AliEMCALClusterizerv1::AreInGroup(AliEMCALDigit * d1, AliEMCALDigit * d2) const
468 // Tells whether two digits fall within the same supermodule and
469 // tower grouping. The number of towers in a group is controlled by
470 // the parameter nTowersInGroup
471 // = 0 are not in same group but continue searching
473 // = 2 is in different SM, quit from searching
474 // = 3 different tower group, quit from searching
476 // The order of d1 and d2 is important: first (d1) should be a digit
477 // already in a cluster which is compared to a digit (d2) not yet in a cluster
479 //JLK Question: does the quit from searching assume that the digits
480 //are ordered, so that once you are in a different SM, you'll not
481 //find another in the list that will match? How about my TowerGroup search?
484 static Int_t nSupMod1=0, nModule1=0, nIphi1=0, nIeta1=0, iphi1=0, ieta1=0;
485 static Int_t nSupMod2=0, nModule2=0, nIphi2=0, nIeta2=0, iphi2=0, ieta2=0;
486 static Int_t towerGroup1 = -1, towerGroup2 = -1;
489 fGeom->GetCellIndex(d1->GetId(), nSupMod1,nModule1,nIphi1,nIeta1);
490 fGeom->GetCellIndex(d2->GetId(), nSupMod2,nModule2,nIphi2,nIeta2);
491 if(nSupMod1 != nSupMod2) return 2; // different SM
493 static Int_t nTowerInSM = fGeom->GetNCellsInSupMod()/fGeom->GetNCellsInModule();
495 //figure out which tower grouping each digit belongs to
496 for(int it = 0; it < nTowerInSM/fNTowerInGroup; it++) {
497 if(nModule1 <= nTowerInSM - it*fNTowerInGroup) towerGroup1 = it;
498 if(nModule2 <= nTowerInSM - it*fNTowerInGroup) towerGroup2 = it;
500 if(towerGroup1 != towerGroup2) return 3; //different Towergroup
502 //same SM, same towergroup, we're happy
503 if(towerGroup1 == towerGroup2 && towerGroup2 >= 0)
506 if (gDebug == 2 && rv==1)
507 printf("AreInGroup: neighbours=%d, id1=%d, relid1=%d,%d \n id2=%d, relid2=%d,%d \n",
508 rv, d1->GetId(), iphi1,ieta1, d2->GetId(), iphi2,ieta2);
513 //____________________________________________________________________________
514 void AliEMCALClusterizerv1::WriteRecPoints()
517 // Creates new branches with given title
518 // fills and writes into TreeR.
520 AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::GetRunLoader()->GetDetectorLoader("EMCAL"));
522 TObjArray * aECARecPoints = emcalLoader->RecPoints() ;
524 TClonesArray * digits = emcalLoader->Digits() ;
525 TTree * treeR = emcalLoader->TreeR();
527 emcalLoader->MakeRecPointsContainer();
528 treeR = emcalLoader->TreeR();
530 else if (treeR->GetEntries() > 0) {
531 Warning("WriteRecPoints","RecPoints already exist in output file. New Recpoitns will not be visible.");
535 //Evaluate position, dispersion and other RecPoint properties for EC section
536 for(index = 0; index < aECARecPoints->GetEntries(); index++) {
537 if (dynamic_cast<AliEMCALRecPoint *>(aECARecPoints->At(index))->GetClusterType() != AliESDCaloCluster::kPseudoCluster)
538 dynamic_cast<AliEMCALRecPoint *>(aECARecPoints->At(index))->EvalAll(fECAW0,digits) ;
541 aECARecPoints->Sort() ;
543 for(index = 0; index < aECARecPoints->GetEntries(); index++) {
544 (dynamic_cast<AliEMCALRecPoint *>(aECARecPoints->At(index)))->SetIndexInList(index) ;
545 (dynamic_cast<AliEMCALRecPoint *>(aECARecPoints->At(index)))->Print();
548 Int_t bufferSize = 32000 ;
549 Int_t splitlevel = 0 ;
553 TBranch * branchECA = 0;
554 if ((branchECA = treeR->GetBranch("EMCALECARP")))
555 branchECA->SetAddress(&aECARecPoints);
557 treeR->Branch("EMCALECARP","TObjArray",&aECARecPoints,bufferSize,splitlevel);
560 emcalLoader->WriteRecPoints("OVERWRITE");
563 //____________________________________________________________________________
564 void AliEMCALClusterizerv1::MakeClusters(char* option)
566 // Steering method to construct the clusters stored in a list of Reconstructed Points
567 // A cluster is defined as a list of neighbour digits
568 // Mar 03, 2007 by PAI
570 if (fGeom==0) AliFatal("Did not get geometry from EMCALLoader");
572 AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::GetRunLoader()->GetDetectorLoader("EMCAL"));
573 TObjArray * aECARecPoints = emcalLoader->RecPoints() ;
574 aECARecPoints->Clear();
576 TClonesArray *digits = emcalLoader->Digits();
578 // Set up TObjArray with pointers to digits to work on
579 TObjArray *digitsC = new TObjArray();
580 TIter nextdigit(digits);
581 AliEMCALDigit *digit;
582 while ( (digit = dynamic_cast<AliEMCALDigit*>(nextdigit())) ) {
583 digitsC->AddLast(digit);
586 //Start with pseudoclusters, if option
587 if(strstr(option,"pseudo")) {
589 // New algorithm : will be created one pseudo cluster per module
591 AliDebug(1,Form("Pseudo clustering #digits : %i ",digits->GetEntries()));
593 AliEMCALRecPoint *recPoints[12]; // max size is 12 : see fGeom->GetNumberOfSuperModules();
594 for(int i=0; i<12; i++) recPoints[i] = 0;
595 TIter nextdigitC(digitsC) ;
597 // PseudoClusterization starts
598 int nSM = 0; // # of SM
599 while ( (digit = dynamic_cast<AliEMCALDigit *>(nextdigitC())) ) { // scan over the list of digitsC
600 if(fGeom->CheckAbsCellId(digit->GetId()) ) { //Is this an EMCAL digit? Just maing sure...
601 nSM = fGeom->GetSuperModuleNumber(digit->GetId());
602 if(recPoints[nSM] == 0) {
603 recPoints[nSM] = new AliEMCALRecPoint(Form("PC%2.2i", nSM));
604 recPoints[nSM]->SetClusterType(AliESDCaloCluster::kPseudoCluster);
606 recPoints[nSM]->AddDigit(*digit, Calibrate(digit->GetAmp(), digit->GetId()));
609 fNumberOfECAClusters = 0;
610 for(int i=0; i<fGeom->GetNumberOfSuperModules(); i++) { // put non empty rec.points to container
611 if(recPoints[i]) aECARecPoints->AddAt(recPoints[i], fNumberOfECAClusters++);
613 AliDebug(1,Form(" Number of PC %d ", fNumberOfECAClusters));
617 // Now do real clusters
620 double e = 0.0, ehs = 0.0;
621 TIter nextdigitC(digitsC);
623 while ( (digit = dynamic_cast<AliEMCALDigit *>(nextdigitC())) ) { // clean up digits
624 e = Calibrate(digit->GetAmp(), digit->GetId());
625 AliEMCALHistoUtilities::FillH1(fHists, 10, digit->GetAmp());
626 AliEMCALHistoUtilities::FillH1(fHists, 11, e);
627 if ( e < fMinECut || digit->GetTimeR() > fTimeCut )
628 digitsC->Remove(digit);
632 AliDebug(1,Form("MakeClusters: Number of digits %d -> (e %f), ehs %d\n",
633 digits->GetEntries(),fMinECut,ehs));
637 while ( (digit = dynamic_cast<AliEMCALDigit *>(nextdigitC())) ) { // scan over the list of digitsC
638 TArrayI clusterECAdigitslist(digits->GetEntries());
640 if(fGeom->CheckAbsCellId(digit->GetId()) && (Calibrate(digit->GetAmp(), digit->GetId()) > fECAClusteringThreshold ) ){
641 // start a new Tower RecPoint
642 if(fNumberOfECAClusters >= aECARecPoints->GetSize()) aECARecPoints->Expand(2*fNumberOfECAClusters+1) ;
643 AliEMCALRecPoint *recPoint = new AliEMCALRecPoint("") ;
644 aECARecPoints->AddAt(recPoint, fNumberOfECAClusters) ;
645 recPoint = dynamic_cast<AliEMCALRecPoint *>(aECARecPoints->At(fNumberOfECAClusters)) ;
646 fNumberOfECAClusters++ ;
648 recPoint->SetClusterType(AliESDCaloCluster::kClusterv1);
650 recPoint->AddDigit(*digit, Calibrate(digit->GetAmp(), digit->GetId())) ;
651 TObjArray clusterDigits;
652 clusterDigits.AddLast(digit);
653 digitsC->Remove(digit) ;
655 AliDebug(1,Form("MakeClusters: OK id = %d, ene = %f , cell.th. = %f \n", digit->GetId(),
656 Calibrate(digit->GetAmp(),digit->GetId()), fECAClusteringThreshold));
658 // Grow cluster by finding neighbours
659 TIter nextClusterDigit(&clusterDigits);
660 while ( (digit = dynamic_cast<AliEMCALDigit*>(nextClusterDigit())) ) { // scan over digits in cluster
661 TIter nextdigitN(digitsC);
662 AliEMCALDigit *digitN = 0; // digi neighbor
663 while ( (digitN = (AliEMCALDigit *)nextdigitN()) ) { // scan over all digits to look for neighbours
664 if (AreNeighbours(digit, digitN)==1) { // call (digit,digitN) in THAT oder !!!!!
665 recPoint->AddDigit(*digitN, Calibrate(digitN->GetAmp(),digitN->GetId()) ) ;
666 clusterDigits.AddLast(digitN) ;
667 digitsC->Remove(digitN) ;
669 } // scan over digits
670 } // scan over digits already in cluster
672 AliDebug(2,Form("MakeClusters: %d digitd, energy %f \n", clusterDigits.GetEntries(), recPoint->GetEnergy()));
678 AliDebug(1,Form("total no of clusters %d from %d digits",fNumberOfECAClusters,digits->GetEntriesFast()));
681 void AliEMCALClusterizerv1::MakeUnfolding() const
683 Fatal("AliEMCALClusterizerv1::MakeUnfolding", "--> Unfolding not implemented") ;
686 //____________________________________________________________________________
687 Double_t AliEMCALClusterizerv1::ShowerShape(Double_t r)
689 // Shape of the shower (see EMCAL TDR)
690 // If you change this function, change also the gradient evaluation in ChiSquare()
692 Double_t r4 = r*r*r*r ;
693 Double_t r295 = TMath::Power(r, 2.95) ;
694 Double_t shape = TMath::Exp( -r4 * (1. / (2.32 + 0.26 * r4) + 0.0316 / (1 + 0.0652 * r295) ) ) ;
698 //____________________________________________________________________________
699 void AliEMCALClusterizerv1::UnfoldCluster(AliEMCALRecPoint * /*iniTower*/,
701 AliEMCALDigit ** /*maxAt*/,
702 Float_t * /*maxAtEnergy*/) const
704 // Performs the unfolding of a cluster with nMax overlapping showers
706 Fatal("UnfoldCluster", "--> Unfolding not implemented") ;
710 //_____________________________________________________________________________
711 void AliEMCALClusterizerv1::UnfoldingChiSquare(Int_t & /*nPar*/, Double_t * /*Grad*/,
713 Double_t * /*x*/, Int_t /*iflag*/)
715 // Calculates the Chi square for the cluster unfolding minimization
716 // Number of parameters, Gradient, Chi squared, parameters, what to do
718 ::Fatal("UnfoldingChiSquare","Unfolding not implemented") ;
720 //____________________________________________________________________________
721 void AliEMCALClusterizerv1::Print(Option_t * /*option*/)const
723 // Print clusterizer parameters
725 TString message("\n") ;
727 if( strcmp(GetName(), "") !=0 ){
731 TString taskName(GetName()) ;
732 taskName.ReplaceAll(Version(), "") ;
734 printf("--------------- ");
735 printf(taskName.Data()) ;
738 printf("-----------\n");
739 printf("Clusterizing digits from the file: ");
740 printf(taskName.Data());
741 printf("\n Branch: ");
743 printf("\n ECA Local Maximum cut = %f", fECALocMaxCut);
744 printf("\n ECA Logarithmic weight = %f", fECAW0);
746 printf("\nUnfolding on\n");
748 printf("\nUnfolding off\n");
750 printf("------------------------------------------------------------------");
753 printf("AliEMCALClusterizerv1 not initialized ") ;
756 //____________________________________________________________________________
757 void AliEMCALClusterizerv1::PrintRecPoints(Option_t * option)
759 // Prints list of RecPoints produced at the current pass of AliEMCALClusterizer
760 AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::GetRunLoader()->GetDetectorLoader("EMCAL"));
761 TObjArray * aECARecPoints = emcalLoader->RecPoints() ;
763 if(strstr(option,"deb")) {
764 printf("PrintRecPoints: Clusterization result:") ;
766 printf("event # %d\n", emcalLoader->GetRunLoader()->GetEventNumber() ) ;
767 printf(" Found %d ECA Rec Points\n ",
768 aECARecPoints->GetEntriesFast()) ;
771 fRecPointsInRun += aECARecPoints->GetEntriesFast() ;
773 if(strstr(option,"all")) {
774 if(strstr(option,"deb")) {
775 printf("\n-----------------------------------------------------------------------\n") ;
776 printf("Clusters in ECAL section\n") ;
777 printf("Index Ene(GeV) Multi Module GX GY GZ lX lY lZ Dispersion Lambda 1 Lambda 2 # of prim Primaries list\n") ;
785 AliEMCALHistoUtilities::FillH1(fHists, 12, double(aECARecPoints->GetEntries()));
787 for (index = 0 ; index < aECARecPoints->GetEntries() ; index++) {
788 AliEMCALRecPoint * rp = dynamic_cast<AliEMCALRecPoint * >(aECARecPoints->At(index)) ;
790 //rp->GetGlobalPosition(globalpos);
792 rp->GetLocalPosition(localpos);
794 rp->GetElipsAxis(lambda);
797 primaries = rp->GetPrimaries(nprimaries);
798 if(strstr(option,"deb"))
799 printf("\n%6d %8.4f %3d %4.1f %4.1f %4.1f %4.1f %4.1f %4.1f %4.1f %4f %4f %2d : ",
800 rp->GetIndexInList(), rp->GetEnergy(), rp->GetMultiplicity(),
801 globalpos.X(), globalpos.Y(), globalpos.Z(), localpos.X(), localpos.Y(), localpos.Z(),
802 rp->GetDispersion(), lambda[0], lambda[1], nprimaries) ;
804 if(rp->GetEnergy()>maxE){
805 maxE=rp->GetEnergy();
808 maxDis=rp->GetDispersion();
810 fPointE->Fill(rp->GetEnergy());
811 fPointL1->Fill(lambda[0]);
812 fPointL2->Fill(lambda[1]);
813 fPointDis->Fill(rp->GetDispersion());
814 fPointMult->Fill(rp->GetMultiplicity());
816 if(strstr(option,"deb")){
817 for (Int_t iprimary=0; iprimary<nprimaries; iprimary++) {
818 printf("%d ", primaries[iprimary] ) ;
826 fMaxDis->Fill(maxDis);
828 if(strstr(option,"deb"))
829 printf("\n-----------------------------------------------------------------------\n");
832 TList* AliEMCALClusterizerv1::BookHists()
834 //set up histograms for monitoring clusterizer performance
838 fPointE = new TH1F("00_pointE","point energy", 2000, 0.0, 150.);
839 fPointL1 = new TH1F("01_pointL1","point L1", 1000, 0.0, 3.);
840 fPointL2 = new TH1F("02_pointL2","point L2", 1000, 0.0, 3.);
841 fPointDis = new TH1F("03_pointDisp","point dispersion", 1000, 0.0, 10.);
842 fPointMult = new TH1F("04_pointMult","#cell in point(cluster)", 101, -0.5, 100.5);
843 fDigitAmp = new TH1F("05_digitAmp","Digit Amplitude", 2000, 0.0, 5000.);
844 fMaxE = new TH1F("06_maxE","Max point energy", 2000, 0.0, 150.);
845 fMaxL1 = new TH1F("07_maxL1","Largest (first) of eigenvalue of covariance matrix", 1000, 0.0, 3.);
846 fMaxL2 = new TH1F("08_maxL2","Smalest (second) of eigenvalue of covariace matrix", 1000, 0.0, 3.);
847 fMaxDis = new TH1F("09_maxDis","Point dispersion", 1000, 0.0, 10.); // 9
849 new TH1F("10_adcOfDigits","adc of digits(threshold control)", 1001, -0.5, 1000.5); // 10
850 new TH1F("11_energyOfDigits","energy of digits(threshold control)", 1000, 0.0, 1.); // 11
851 new TH1F("12_numberOfPoints","number of points(clusters)", 101, -0.5, 100.5); // 12
853 return AliEMCALHistoUtilities::MoveHistsToList("EmcalClusterizerv1ControlHists", kFALSE);
856 void AliEMCALClusterizerv1::SaveHists(const char *fn)
858 AliEMCALHistoUtilities::SaveListOfHists(fHists, fn, kTRUE);
861 void AliEMCALClusterizerv1::PrintRecoInfo()
863 printf(" AliEMCALClusterizerv1::PrintRecoInfo() : version %s \n", Version() );
864 TH1F *h = (TH1F*)fHists->At(12);
866 printf(" ## Multiplicity of RecPoints ## \n");
867 for(int i=1; i<=h->GetNbinsX(); i++) {
868 int nbin = int((*h)[i]);
869 int mult = int(h->GetBinCenter(i));
870 if(nbin > 0) printf(" %i : %5.5i %6.3f %% \n", mult, nbin, 100.*nbin/h->GetEntries());
875 void AliEMCALClusterizerv1::DrawLambdasHists()
879 if(fMaxL2) fMaxL2->Draw("same");
881 fMaxDis->Draw("same");
886 void AliEMCALClusterizerv1::Browse(TBrowser* b)
888 if(fHists) b->Add(fHists);
889 if(fGeom) b->Add(fGeom);