[u/mrichter/AliRoot.git] / EMCAL / AliEMCALReconstructor.cxx

/**************************************************************************
 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 *                                                                        *
 * Author: The ALICE Off-line Project.                                    *
 * Contributors are mentioned in the code where appropriate.              *
 *                                                                        *
 * Permission to use, copy, modify and distribute this software and its   *
 * documentation strictly for non-commercial purposes is hereby granted   *
 * without fee, provided that the above copyright notice appears in all   *
 * copies and that both the copyright notice and this permission notice   *
 * appear in the supporting documentation. The authors make no claims     *
 * about the suitability of this software for any purpose. It is          *
 * provided "as is" without express or implied warranty.                  *
 **************************************************************************/

/* $Id$ */

//_________________________________________________________________________
//--
//-- Yves Schutz (SUBATECH) 
// Reconstruction class. Redesigned from the old AliReconstructionner class and 
// derived from STEER/AliReconstructor. 
// 
//-- Aleksei Pavlinov : added staf for EMCAL jet trigger 9Apr 25, 2008)
//                    : fgDigitsArr should read just once at event

// --- ROOT system ---
#include <TList.h>
#include <TClonesArray.h>
#include <TH2.h>

// --- Standard library ---

// --- AliRoot header files ---
#include "AliEMCALReconstructor.h"

#include "AliCodeTimer.h"
#include "AliESDEvent.h"
#include "AliESDCaloCluster.h"
#include "AliESDCaloCells.h"
#include "AliESDtrack.h"
#include "AliEMCALLoader.h"
#include "AliEMCALRawUtils.h"
#include "AliEMCALDigit.h"
#include "AliEMCALClusterizerv1.h"
#include "AliEMCALRecPoint.h"
#include "AliEMCALPID.h"
#include "AliEMCALTrigger.h"
#include "AliRawReader.h"
#include "AliCDBEntry.h"
#include "AliCDBManager.h"
#include "AliEMCALGeometry.h"
#include "AliEMCAL.h"
#include "AliEMCALHistoUtilities.h"
#include "AliESDVZERO.h"

#include "AliRunLoader.h"
#include "AliRun.h"

ClassImp(AliEMCALReconstructor) 

const AliEMCALRecParam* AliEMCALReconstructor::fgkRecParam = 0;  // EMCAL rec. parameters
AliEMCALRawUtils* AliEMCALReconstructor::fgRawUtils = 0;   // EMCAL raw utilities class
AliEMCALClusterizer* AliEMCALReconstructor::fgClusterizer = 0;   // EMCAL clusterizer class
TClonesArray*     AliEMCALReconstructor::fgDigitsArr = 0;  // shoud read just once at event
//____________________________________________________________________________
AliEMCALReconstructor::AliEMCALReconstructor() 
  : fDebug(kFALSE), fList(0), fGeom(0) 
{
  // ctor

  fgRawUtils = new AliEMCALRawUtils;
  fgClusterizer = new AliEMCALClusterizerv1;

  //To make sure we match with the geometry in a simulation file,
  //let's try to get it first.  If not, take the default geometry
  AliRunLoader *rl = AliRunLoader::Instance();
  if (rl->GetAliRun() && rl->GetAliRun()->GetDetector("EMCAL")) {
    fGeom = dynamic_cast<AliEMCAL*>(rl->GetAliRun()->GetDetector("EMCAL"))->GetGeometry();
  } else {
    AliInfo(Form("Using default geometry in reconstruction"));
    fGeom =  AliEMCALGeometry::GetInstance(AliEMCALGeometry::GetDefaultGeometryName());
  }

  if(!fGeom) AliFatal(Form("Could not get geometry!"));

} 

//____________________________________________________________________________
AliEMCALReconstructor::AliEMCALReconstructor(const AliEMCALReconstructor & rec)
  : AliReconstructor(rec),
    fDebug(rec.fDebug),
    fList(rec.fList),
    fGeom(rec.fGeom)
{
  //copy ctor
}

//____________________________________________________________________________
AliEMCALReconstructor::~AliEMCALReconstructor()
{
  // dtor
  delete fGeom;
  AliCodeTimer::Instance()->Print();
} 

//____________________________________________________________________________
void AliEMCALReconstructor::Init()
{
  // Trigger hists - Oct 24, 2007
  fList = AliEMCALHistoUtilities::GetTriggersListOfHists(kTRUE);
}

//____________________________________________________________________________
void AliEMCALReconstructor::Reconstruct(TTree* digitsTree, TTree* clustersTree) const
{
  // method called by AliReconstruction; 
  // Only the clusterization is performed,; the rest of the reconstruction is done in FillESD because the track
  // segment maker needs access to the AliESD object to retrieve the tracks reconstructed by 
  // the global tracking.
  // Works on the current event.

  AliCodeTimerAuto("")

  ReadDigitsArrayFromTree(digitsTree);
  fgClusterizer->InitParameters();
  fgClusterizer->SetOutput(clustersTree);

  if(fgDigitsArr && fgDigitsArr->GetEntries()) {

    fgClusterizer->SetInput(digitsTree);
    
    if(Debug())
      fgClusterizer->Digits2Clusters("deb all") ;
    else
      fgClusterizer->Digits2Clusters("");
    
    fgClusterizer->Clear();

  }

}

//____________________________________________________________________________
void AliEMCALReconstructor::ConvertDigits(AliRawReader* rawReader, TTree* digitsTree) const

{
  // Conversion from raw data to
  // EMCAL digits.
  // Works on a single-event basis

  rawReader->Reset() ; 

  TClonesArray *digitsArr = new TClonesArray("AliEMCALDigit",200);
  Int_t bufsize = 32000;
  digitsTree->Branch("EMCAL", &digitsArr, bufsize);

  //must be done here because, in constructor, option is not yet known
  fgRawUtils->SetOption(GetOption());

  fgRawUtils->SetRawFormatHighLowGainFactor(GetRecParam()->GetHighLowGainFactor());
  fgRawUtils->SetRawFormatOrder(GetRecParam()->GetOrderParameter());
  fgRawUtils->SetRawFormatTau(GetRecParam()->GetTau());
  fgRawUtils->SetNoiseThreshold(GetRecParam()->GetNoiseThreshold());
  fgRawUtils->SetNPedSamples(GetRecParam()->GetNPedSamples());

  fgRawUtils->Raw2Digits(rawReader,digitsArr);

  digitsTree->Fill();
  digitsArr->Delete();
  delete digitsArr;

}


//____________________________________________________________________________
void AliEMCALReconstructor::FillESD(TTree* digitsTree, TTree* clustersTree, 
				    AliESDEvent* esd) const
{
  // Called by AliReconstruct after Reconstruct() and global tracking and vertexing 
  // and V0 
  // Works on the current event
  //  printf(" ## AliEMCALReconstructor::FillESD() is started ### \n ");
  //return;

  //######################################################
  //#########Calculate trigger and set trigger info###########
  //######################################################
 
  AliEMCALTrigger tr;
  //   tr.SetPatchSize(1);  // create 4x4 patches
  tr.SetSimulation(kFALSE); // Reconstruction mode
  tr.SetDigitsList(fgDigitsArr);
  // Get VZERO total multiplicity for jet trigger simulation 
  // The simulation of jey trigger will be incorrect if no VZERO data 
  // at ESD
  AliESDVZERO* vZero = esd->GetVZEROData();
  if(vZero) {
    tr.SetVZER0Multiplicity(vZero->GetMTotV0A() + vZero->GetMTotV0C());
  }
  //
  tr.Trigger();

  Float_t maxAmp2x2  = tr.Get2x2MaxAmplitude();
  Float_t maxAmpnxn  = tr.GetnxnMaxAmplitude();
  Float_t ampOutOfPatch2x2  = tr.Get2x2AmpOutOfPatch() ;
  Float_t ampOutOfPatchnxn  = tr.GetnxnAmpOutOfPatch() ;

  Int_t iSM2x2      = tr.Get2x2SuperModule();
  Int_t iSMnxn      = tr.GetnxnSuperModule();
  Int_t iModulePhi2x2 = tr.Get2x2ModulePhi();
  Int_t iModulePhinxn = tr.GetnxnModulePhi();
  Int_t iModuleEta2x2 = tr.Get2x2ModuleEta();
  Int_t iModuleEtanxn = tr.GetnxnModuleEta();

  AliDebug(2, Form("Trigger 2x2 max amp %f, out amp %f, SM %d, iphi %d ieta %d",  maxAmp2x2, ampOutOfPatch2x2, iSM2x2,iModulePhi2x2, iModuleEta2x2));
  AliDebug(2, Form("Trigger 4x4 max amp %f , out amp %f, SM %d, iphi %d, ieta %d",  maxAmpnxn, ampOutOfPatchnxn, iSMnxn,iModulePhinxn, iModuleEtanxn));

  TVector3    pos2x2(-1,-1,-1);
  TVector3    posnxn(-1,-1,-1);

  Int_t iAbsId2x2 = fGeom->GetAbsCellIdFromCellIndexes( iSM2x2, iModulePhi2x2, iModuleEta2x2) ; // should be changed to Module
  Int_t iAbsIdnxn = fGeom->GetAbsCellIdFromCellIndexes( iSMnxn, iModulePhinxn, iModuleEtanxn) ;
  fGeom->GetGlobal(iAbsId2x2, pos2x2);
  fGeom->GetGlobal(iAbsIdnxn, posnxn);
  //printf(" iAbsId2x2 %i iAbsIdnxn %i \n", iAbsId2x2, iAbsIdnxn);
  
  TArrayF triggerPosition(6);
  triggerPosition[0] = pos2x2(0) ;   
  triggerPosition[1] = pos2x2(1) ;   
  triggerPosition[2] = pos2x2(2) ;  
  triggerPosition[3] = posnxn(0) ;   
  triggerPosition[4] = posnxn(1) ;   
  triggerPosition[5] = posnxn(2) ;
  //printf(" triggerPosition ");
  //for(int i=0; i<6; i++) printf(" %i %f : ", i, triggerPosition[i]);

  TArrayF triggerAmplitudes(4);
  triggerAmplitudes[0] = maxAmp2x2 ;   
  triggerAmplitudes[1] = ampOutOfPatch2x2 ;    
  triggerAmplitudes[2] = maxAmpnxn ;   
  triggerAmplitudes[3] = ampOutOfPatchnxn ;   
  //printf("\n triggerAmplitudes ");
  //for(int i=0; i<4; i++) printf(" %i %f : ", i, triggerAmplitudes[i]);
  //printf("\n");
  //tr.Print("");
  //
  // Trigger jet staff
  //
  if(tr.GetNJetThreshold()>0) {
    // Jet phi/eta
    Int_t n0 = triggerPosition.GetSize();
    const TH2F *hpatch = tr.GetJetMatrixE();
    triggerPosition.Set(n0 + 2);
    for(Int_t i=0; i<2; i++) triggerPosition[n0+i] = hpatch->GetMean(i+1);   
    // Add jet ampitudes
    n0 = triggerAmplitudes.GetSize();
    triggerAmplitudes.Set(n0 + tr.GetNJetThreshold());
    Double_t *ampJet = tr.GetL1JetThresholds();
    for(Int_t i=0; i<tr.GetNJetThreshold(); i++){
      triggerAmplitudes[n0 + i] = Float_t(ampJet[i]);
    }
  }
  esd->AddEMCALTriggerPosition(triggerPosition);
  esd->AddEMCALTriggerAmplitudes(triggerAmplitudes);
  // Fill trigger hists
  AliEMCALHistoUtilities::FillTriggersListOfHists(fList,&triggerPosition,&triggerAmplitudes);

  //########################################
  //##############Fill CaloCells###############
  //########################################

  TClonesArray *digits = new TClonesArray("AliEMCALDigit",1000);
  TBranch *branchdig = digitsTree->GetBranch("EMCAL");
  if (!branchdig) { 
    AliError("can't get the branch with the PHOS digits !");
    return;
  }
  branchdig->SetAddress(&digits);
  digitsTree->GetEvent(0);
  Int_t nDigits = digits->GetEntries(), idignew = 0 ;
  AliDebug(1,Form("%d digits",nDigits));

  AliESDCaloCells &emcCells = *(esd->GetEMCALCells());
  emcCells.CreateContainer(nDigits);
  emcCells.SetType(AliESDCaloCells::kEMCALCell);
  for (Int_t idig = 0 ; idig < nDigits ; idig++) {
    const AliEMCALDigit * dig = (const AliEMCALDigit*)digits->At(idig);
    if(dig->GetAmp() > 0 ){
      emcCells.SetCell(idignew,dig->GetId(),dig->GetAmp(), dig->GetTime());   
      idignew++;
    }
  }
  emcCells.SetNumberOfCells(idignew);
  emcCells.Sort();

  //------------------------------------------------------------
  //-----------------CLUSTERS-----------------------------
  //------------------------------------------------------------
  TObjArray *clusters = new TObjArray(100);
  TBranch *branch = clustersTree->GetBranch("EMCALECARP");
  branch->SetAddress(&clusters);
  clustersTree->GetEvent(0);

  Int_t nClusters = clusters->GetEntries(),  nClustersNew=0;
  AliDebug(1,Form("%d clusters",nClusters));
  esd->SetFirstEMCALCluster(esd->GetNumberOfCaloClusters()); // Put after Phos clusters 


  //######################################################
  //#######################TRACK MATCHING###############
  //######################################################
  //Fill list of integers, each one is index of track to which the cluster belongs.

  // step 1 - initialize array of matched track indexes
  Int_t *matchedTrack = new Int_t[nClusters];
  for (Int_t iclus = 0; iclus < nClusters; iclus++)
    matchedTrack[iclus] = -1;  // neg. index --> no matched track
  
  // step 2, change the flag for all matched clusters found in tracks
  Int_t iemcalMatch = -1;
  Int_t endtpc = esd->GetNumberOfTracks();
  for (Int_t itrack = 0; itrack < endtpc; itrack++) {
    AliESDtrack * track = esd->GetTrack(itrack) ; // retrieve track
    iemcalMatch = track->GetEMCALcluster();
    if(iemcalMatch >= 0) matchedTrack[iemcalMatch] = itrack;
  } 
  
  //########################################
  //##############Fill CaloClusters#############
  //########################################
  esd->SetNumberOfEMCALClusters(nClusters);
  for (Int_t iClust = 0 ; iClust < nClusters ; iClust++) {
    const AliEMCALRecPoint * clust = (const AliEMCALRecPoint*)clusters->At(iClust);
    //if(clust->GetClusterType()== AliESDCaloCluster::kEMCALClusterv1) nRP++; else nPC++;
    if (Debug()) clust->Print();
    // Get information from EMCAL reconstruction points
    Float_t xyz[3];
    TVector3 gpos;
    clust->GetGlobalPosition(gpos);
    for (Int_t ixyz=0; ixyz<3; ixyz++)
      xyz[ixyz] = gpos[ixyz];
    Float_t elipAxis[2];
    clust->GetElipsAxis(elipAxis);
       //Create digits lists
    Int_t cellMult = clust->GetMultiplicity();
    //TArrayS digiList(digitMult);
    Float_t *amplFloat = clust->GetEnergiesList();
    Int_t   *digitInts = clust->GetAbsId();
    TArrayS absIdList(cellMult);
    TArrayD fracList(cellMult);

    Int_t newCellMult = 0;
    for (Int_t iCell=0; iCell<cellMult; iCell++) {
      if (amplFloat[iCell] > 0) {
      absIdList[newCellMult] = (UShort_t)(digitInts[iCell]);
      //Uncomment when unfolding is done
      //if(emcCells.GetCellAmplitude(digitInts[iCell])>0)
      //fracList[newCellMult] = amplFloat[iCell]/(emcCells.GetCellAmplitude(digitInts[iCell])*calibration);//get cell calibration value 
      //else
      fracList[newCellMult] = 0; 
      newCellMult++;
      }
    }

    absIdList.Set(newCellMult);
    fracList.Set(newCellMult);
    
    if(newCellMult > 0) { // accept cluster if it has some digit
      nClustersNew++;
      //Primaries
      Int_t  parentMult  = 0;
      Int_t *parentList =  clust->GetParents(parentMult);
      // fills the ESDCaloCluster
      AliESDCaloCluster * ec = new AliESDCaloCluster() ;
      ec->SetClusterType(AliESDCaloCluster::kEMCALClusterv1);
      ec->SetPosition(xyz);
      ec->SetE(clust->GetEnergy());
      ec->SetNCells(newCellMult);
      //Change type of list from short to ushort
      UShort_t *newAbsIdList  = new UShort_t[newCellMult];
      Double_t *newFracList  = new Double_t[newCellMult];
      for(Int_t i = 0; i < newCellMult ; i++) {
        newAbsIdList[i]=absIdList[i];
        newFracList[i]=fracList[i];
      }
      ec->SetCellsAbsId(newAbsIdList);
      ec->SetCellsAmplitudeFraction(newFracList);
      ec->SetClusterDisp(clust->GetDispersion());
      ec->SetClusterChi2(-1); //not yet implemented
      ec->SetM02(elipAxis[0]*elipAxis[0]) ;
      ec->SetM20(elipAxis[1]*elipAxis[1]) ;
      ec->SetTOF(clust->GetTime()) ; //time-of-fligh
      ec->SetNExMax(clust->GetNExMax());          //number of local maxima
      TArrayI arrayTrackMatched(1);// Only one track, temporal solution.
      arrayTrackMatched[0]= matchedTrack[iClust];
      ec->AddTracksMatched(arrayTrackMatched);

      TArrayI arrayParents(parentMult,parentList);
      ec->AddLabels(arrayParents);

      // add the cluster to the esd object
      esd->AddCaloCluster(ec);
      delete ec;
      delete [] newAbsIdList ;
      delete [] newFracList ;
   }
 } // cycle on clusters

 delete [] matchedTrack;

 esd->SetNumberOfEMCALClusters(nClustersNew);
 //if(nClustersNew != nClusters)
 //printf(" ##### nClusters %i -> new %i ##### \n", nClusters, nClustersNew );

 //Fill ESDCaloCluster with PID weights
  AliEMCALPID *pid = new AliEMCALPID;
  //pid->SetPrintInfo(kTRUE);
  pid->SetReconstructor(kTRUE);
  pid->RunPID(esd);
  delete pid;
  
  delete digits;
  delete clusters;
  
  // printf(" ## AliEMCALReconstructor::FillESD() is ended : ncl %i -> %i ### \n ",nClusters, nClustersNew); 
}

//__________________________________________________________________________
void AliEMCALReconstructor::ReadDigitsArrayFromTree(TTree *digitsTree) const
{
  // See AliEMCALClusterizer::SetInput(TTree *digitsTree);
  if(fgDigitsArr) {
    // Clear previous digits 
    fgDigitsArr->Delete();
    delete fgDigitsArr;
  }
  // Read the digits from the input tree
  TBranch *branch = digitsTree->GetBranch("EMCAL");
  if (!branch) { 
    AliError("can't get the branch with the EMCAL digits !");
    return;
  }
  fgDigitsArr = new TClonesArray("AliEMCALDigit",100);
  branch->SetAddress(&fgDigitsArr);
  branch->GetEntry(0);
}
Commit	Line	Data
	1	/**************************************************************************
	2	* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
	3	* *
	4	* Author: The ALICE Off-line Project. *
	5	* Contributors are mentioned in the code where appropriate. *
	6	* *
	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	**************************************************************************/
	15
	16	/* $Id$ */
	17
	18	//_________________________________________________________________________
	19	//--
	20	//-- Yves Schutz (SUBATECH)
	21	// Reconstruction class. Redesigned from the old AliReconstructionner class and
	22	// derived from STEER/AliReconstructor.
	23	//
	24	//-- Aleksei Pavlinov : added staf for EMCAL jet trigger 9Apr 25, 2008)
	25	// : fgDigitsArr should read just once at event
	26
	27	// --- ROOT system ---
	28	#include <TList.h>
	29	#include <TClonesArray.h>
	30	#include <TH2.h>
	31
	32	// --- Standard library ---
	33
	34	// --- AliRoot header files ---
	35	#include "AliEMCALReconstructor.h"
	36
	37	#include "AliCodeTimer.h"
	38	#include "AliESDEvent.h"
	39	#include "AliESDCaloCluster.h"
	40	#include "AliESDCaloCells.h"
	41	#include "AliESDtrack.h"
	42	#include "AliEMCALLoader.h"
	43	#include "AliEMCALRawUtils.h"
	44	#include "AliEMCALDigit.h"
	45	#include "AliEMCALClusterizerv1.h"
	46	#include "AliEMCALRecPoint.h"
	47	#include "AliEMCALPID.h"
	48	#include "AliEMCALTrigger.h"
	49	#include "AliRawReader.h"
	50	#include "AliCDBEntry.h"
	51	#include "AliCDBManager.h"
	52	#include "AliEMCALGeometry.h"
	53	#include "AliEMCAL.h"
	54	#include "AliEMCALHistoUtilities.h"
	55	#include "AliESDVZERO.h"
	56
	57	#include "AliRunLoader.h"
	58	#include "AliRun.h"
	59
	60	ClassImp(AliEMCALReconstructor)
	61
	62	const AliEMCALRecParam* AliEMCALReconstructor::fgkRecParam = 0; // EMCAL rec. parameters
	63	AliEMCALRawUtils* AliEMCALReconstructor::fgRawUtils = 0; // EMCAL raw utilities class
	64	AliEMCALClusterizer* AliEMCALReconstructor::fgClusterizer = 0; // EMCAL clusterizer class
	65	TClonesArray* AliEMCALReconstructor::fgDigitsArr = 0; // shoud read just once at event
	66	//____________________________________________________________________________
	67	AliEMCALReconstructor::AliEMCALReconstructor()
	68	: fDebug(kFALSE), fList(0), fGeom(0)
	69	{
	70	// ctor
	71
	72	fgRawUtils = new AliEMCALRawUtils;
	73	fgClusterizer = new AliEMCALClusterizerv1;
	74
	75	//To make sure we match with the geometry in a simulation file,
	76	//let's try to get it first. If not, take the default geometry
	77	AliRunLoader *rl = AliRunLoader::Instance();
	78	if (rl->GetAliRun() && rl->GetAliRun()->GetDetector("EMCAL")) {
	79	fGeom = dynamic_cast<AliEMCAL*>(rl->GetAliRun()->GetDetector("EMCAL"))->GetGeometry();
	80	} else {
	81	AliInfo(Form("Using default geometry in reconstruction"));
	82	fGeom = AliEMCALGeometry::GetInstance(AliEMCALGeometry::GetDefaultGeometryName());
	83	}
	84
	85	if(!fGeom) AliFatal(Form("Could not get geometry!"));
	86
	87	}
	88
	89	//____________________________________________________________________________
	90	AliEMCALReconstructor::AliEMCALReconstructor(const AliEMCALReconstructor & rec)
	91	: AliReconstructor(rec),
	92	fDebug(rec.fDebug),
	93	fList(rec.fList),
	94	fGeom(rec.fGeom)
	95	{
	96	//copy ctor
	97	}
	98
	99	//____________________________________________________________________________
	100	AliEMCALReconstructor::~AliEMCALReconstructor()
	101	{
	102	// dtor
	103	delete fGeom;
	104	AliCodeTimer::Instance()->Print();
	105	}
	106
	107	//____________________________________________________________________________
	108	void AliEMCALReconstructor::Init()
	109	{
	110	// Trigger hists - Oct 24, 2007
	111	fList = AliEMCALHistoUtilities::GetTriggersListOfHists(kTRUE);
	112	}
	113
	114	//____________________________________________________________________________
	115	void AliEMCALReconstructor::Reconstruct(TTree* digitsTree, TTree* clustersTree) const
	116	{
	117	// method called by AliReconstruction;
	118	// Only the clusterization is performed,; the rest of the reconstruction is done in FillESD because the track
	119	// segment maker needs access to the AliESD object to retrieve the tracks reconstructed by
	120	// the global tracking.
	121	// Works on the current event.
	122
	123	AliCodeTimerAuto("")
	124
	125	ReadDigitsArrayFromTree(digitsTree);
	126	fgClusterizer->InitParameters();
	127	fgClusterizer->SetOutput(clustersTree);
	128
	129	if(fgDigitsArr && fgDigitsArr->GetEntries()) {
	130
	131	fgClusterizer->SetInput(digitsTree);
	132
	133	if(Debug())
	134	fgClusterizer->Digits2Clusters("deb all") ;
	135	else
	136	fgClusterizer->Digits2Clusters("");
	137
	138	fgClusterizer->Clear();
	139
	140	}
	141
	142	}
	143
	144	//____________________________________________________________________________
	145	void AliEMCALReconstructor::ConvertDigits(AliRawReader* rawReader, TTree* digitsTree) const
	146
	147	{
	148	// Conversion from raw data to
	149	// EMCAL digits.
	150	// Works on a single-event basis
	151
	152	rawReader->Reset() ;
	153
	154	TClonesArray *digitsArr = new TClonesArray("AliEMCALDigit",200);
	155	Int_t bufsize = 32000;
	156	digitsTree->Branch("EMCAL", &digitsArr, bufsize);
	157
	158	//must be done here because, in constructor, option is not yet known
	159	fgRawUtils->SetOption(GetOption());
	160
	161	fgRawUtils->SetRawFormatHighLowGainFactor(GetRecParam()->GetHighLowGainFactor());
	162	fgRawUtils->SetRawFormatOrder(GetRecParam()->GetOrderParameter());
	163	fgRawUtils->SetRawFormatTau(GetRecParam()->GetTau());
	164	fgRawUtils->SetNoiseThreshold(GetRecParam()->GetNoiseThreshold());
	165	fgRawUtils->SetNPedSamples(GetRecParam()->GetNPedSamples());
	166
	167	fgRawUtils->Raw2Digits(rawReader,digitsArr);
	168
	169	digitsTree->Fill();
	170	digitsArr->Delete();
	171	delete digitsArr;
	172
	173	}
	174
	175
	176	//____________________________________________________________________________
	177	void AliEMCALReconstructor::FillESD(TTree* digitsTree, TTree* clustersTree,
	178	AliESDEvent* esd) const
	179	{
	180	// Called by AliReconstruct after Reconstruct() and global tracking and vertexing
	181	// and V0
	182	// Works on the current event
	183	// printf(" ## AliEMCALReconstructor::FillESD() is started ### \n ");
	184	//return;
	185
	186	//######################################################
	187	//#########Calculate trigger and set trigger info###########
	188	//######################################################
	189
	190	AliEMCALTrigger tr;
	191	// tr.SetPatchSize(1); // create 4x4 patches
	192	tr.SetSimulation(kFALSE); // Reconstruction mode
	193	tr.SetDigitsList(fgDigitsArr);
	194	// Get VZERO total multiplicity for jet trigger simulation
	195	// The simulation of jey trigger will be incorrect if no VZERO data
	196	// at ESD
	197	AliESDVZERO* vZero = esd->GetVZEROData();
	198	if(vZero) {
	199	tr.SetVZER0Multiplicity(vZero->GetMTotV0A() + vZero->GetMTotV0C());
	200	}
	201	//
	202	tr.Trigger();
	203
	204	Float_t maxAmp2x2 = tr.Get2x2MaxAmplitude();
	205	Float_t maxAmpnxn = tr.GetnxnMaxAmplitude();
	206	Float_t ampOutOfPatch2x2 = tr.Get2x2AmpOutOfPatch() ;
	207	Float_t ampOutOfPatchnxn = tr.GetnxnAmpOutOfPatch() ;
	208
	209	Int_t iSM2x2 = tr.Get2x2SuperModule();
	210	Int_t iSMnxn = tr.GetnxnSuperModule();
	211	Int_t iModulePhi2x2 = tr.Get2x2ModulePhi();
	212	Int_t iModulePhinxn = tr.GetnxnModulePhi();
	213	Int_t iModuleEta2x2 = tr.Get2x2ModuleEta();
	214	Int_t iModuleEtanxn = tr.GetnxnModuleEta();
	215
	216	AliDebug(2, Form("Trigger 2x2 max amp %f, out amp %f, SM %d, iphi %d ieta %d", maxAmp2x2, ampOutOfPatch2x2, iSM2x2,iModulePhi2x2, iModuleEta2x2));
	217	AliDebug(2, Form("Trigger 4x4 max amp %f , out amp %f, SM %d, iphi %d, ieta %d", maxAmpnxn, ampOutOfPatchnxn, iSMnxn,iModulePhinxn, iModuleEtanxn));
	218
	219	TVector3 pos2x2(-1,-1,-1);
	220	TVector3 posnxn(-1,-1,-1);
	221
	222	Int_t iAbsId2x2 = fGeom->GetAbsCellIdFromCellIndexes( iSM2x2, iModulePhi2x2, iModuleEta2x2) ; // should be changed to Module
	223	Int_t iAbsIdnxn = fGeom->GetAbsCellIdFromCellIndexes( iSMnxn, iModulePhinxn, iModuleEtanxn) ;
	224	fGeom->GetGlobal(iAbsId2x2, pos2x2);
	225	fGeom->GetGlobal(iAbsIdnxn, posnxn);
	226	//printf(" iAbsId2x2 %i iAbsIdnxn %i \n", iAbsId2x2, iAbsIdnxn);
	227
	228	TArrayF triggerPosition(6);
	229	triggerPosition[0] = pos2x2(0) ;
	230	triggerPosition[1] = pos2x2(1) ;
	231	triggerPosition[2] = pos2x2(2) ;
	232	triggerPosition[3] = posnxn(0) ;
	233	triggerPosition[4] = posnxn(1) ;
	234	triggerPosition[5] = posnxn(2) ;
	235	//printf(" triggerPosition ");
	236	//for(int i=0; i<6; i++) printf(" %i %f : ", i, triggerPosition[i]);
	237
	238	TArrayF triggerAmplitudes(4);
	239	triggerAmplitudes[0] = maxAmp2x2 ;
	240	triggerAmplitudes[1] = ampOutOfPatch2x2 ;
	241	triggerAmplitudes[2] = maxAmpnxn ;
	242	triggerAmplitudes[3] = ampOutOfPatchnxn ;
	243	//printf("\n triggerAmplitudes ");
	244	//for(int i=0; i<4; i++) printf(" %i %f : ", i, triggerAmplitudes[i]);
	245	//printf("\n");
	246	//tr.Print("");
	247	//
	248	// Trigger jet staff
	249	//
	250	if(tr.GetNJetThreshold()>0) {
	251	// Jet phi/eta
	252	Int_t n0 = triggerPosition.GetSize();
	253	const TH2F *hpatch = tr.GetJetMatrixE();
	254	triggerPosition.Set(n0 + 2);
	255	for(Int_t i=0; i<2; i++) triggerPosition[n0+i] = hpatch->GetMean(i+1);
	256	// Add jet ampitudes
	257	n0 = triggerAmplitudes.GetSize();
	258	triggerAmplitudes.Set(n0 + tr.GetNJetThreshold());
	259	Double_t *ampJet = tr.GetL1JetThresholds();
	260	for(Int_t i=0; i<tr.GetNJetThreshold(); i++){
	261	triggerAmplitudes[n0 + i] = Float_t(ampJet[i]);
	262	}
	263	}
	264	esd->AddEMCALTriggerPosition(triggerPosition);
	265	esd->AddEMCALTriggerAmplitudes(triggerAmplitudes);
	266	// Fill trigger hists
	267	AliEMCALHistoUtilities::FillTriggersListOfHists(fList,&triggerPosition,&triggerAmplitudes);
	268
	269	//########################################
	270	//##############Fill CaloCells###############
	271	//########################################
	272
	273	TClonesArray *digits = new TClonesArray("AliEMCALDigit",1000);
	274	TBranch *branchdig = digitsTree->GetBranch("EMCAL");
	275	if (!branchdig) {
	276	AliError("can't get the branch with the PHOS digits !");
	277	return;
	278	}
	279	branchdig->SetAddress(&digits);
	280	digitsTree->GetEvent(0);
	281	Int_t nDigits = digits->GetEntries(), idignew = 0 ;
	282	AliDebug(1,Form("%d digits",nDigits));
	283
	284	AliESDCaloCells &emcCells = *(esd->GetEMCALCells());
	285	emcCells.CreateContainer(nDigits);
	286	emcCells.SetType(AliESDCaloCells::kEMCALCell);
	287	for (Int_t idig = 0 ; idig < nDigits ; idig++) {
	288	const AliEMCALDigit * dig = (const AliEMCALDigit*)digits->At(idig);
	289	if(dig->GetAmp() > 0 ){
	290	emcCells.SetCell(idignew,dig->GetId(),dig->GetAmp(), dig->GetTime());
	291	idignew++;
	292	}
	293	}
	294	emcCells.SetNumberOfCells(idignew);
	295	emcCells.Sort();
	296
	297	//------------------------------------------------------------
	298	//-----------------CLUSTERS-----------------------------
	299	//------------------------------------------------------------
	300	TObjArray *clusters = new TObjArray(100);
	301	TBranch *branch = clustersTree->GetBranch("EMCALECARP");
	302	branch->SetAddress(&clusters);
	303	clustersTree->GetEvent(0);
	304
	305	Int_t nClusters = clusters->GetEntries(), nClustersNew=0;
	306	AliDebug(1,Form("%d clusters",nClusters));
	307	esd->SetFirstEMCALCluster(esd->GetNumberOfCaloClusters()); // Put after Phos clusters
	308
	309
	310	//######################################################
	311	//#######################TRACK MATCHING###############
	312	//######################################################
	313	//Fill list of integers, each one is index of track to which the cluster belongs.
	314
	315	// step 1 - initialize array of matched track indexes
	316	Int_t *matchedTrack = new Int_t[nClusters];
	317	for (Int_t iclus = 0; iclus < nClusters; iclus++)
	318	matchedTrack[iclus] = -1; // neg. index --> no matched track
	319
	320	// step 2, change the flag for all matched clusters found in tracks
	321	Int_t iemcalMatch = -1;
	322	Int_t endtpc = esd->GetNumberOfTracks();
	323	for (Int_t itrack = 0; itrack < endtpc; itrack++) {
	324	AliESDtrack * track = esd->GetTrack(itrack) ; // retrieve track
	325	iemcalMatch = track->GetEMCALcluster();
	326	if(iemcalMatch >= 0) matchedTrack[iemcalMatch] = itrack;
	327	}
	328
	329	//########################################
	330	//##############Fill CaloClusters#############
	331	//########################################
	332	esd->SetNumberOfEMCALClusters(nClusters);
	333	for (Int_t iClust = 0 ; iClust < nClusters ; iClust++) {
	334	const AliEMCALRecPoint * clust = (const AliEMCALRecPoint*)clusters->At(iClust);
	335	//if(clust->GetClusterType()== AliESDCaloCluster::kEMCALClusterv1) nRP++; else nPC++;
	336	if (Debug()) clust->Print();
	337	// Get information from EMCAL reconstruction points
	338	Float_t xyz[3];
	339	TVector3 gpos;
	340	clust->GetGlobalPosition(gpos);
	341	for (Int_t ixyz=0; ixyz<3; ixyz++)
	342	xyz[ixyz] = gpos[ixyz];
	343	Float_t elipAxis[2];
	344	clust->GetElipsAxis(elipAxis);
	345	//Create digits lists
	346	Int_t cellMult = clust->GetMultiplicity();
	347	//TArrayS digiList(digitMult);
	348	Float_t *amplFloat = clust->GetEnergiesList();
	349	Int_t *digitInts = clust->GetAbsId();
	350	TArrayS absIdList(cellMult);
	351	TArrayD fracList(cellMult);
	352
	353	Int_t newCellMult = 0;
	354	for (Int_t iCell=0; iCell<cellMult; iCell++) {
	355	if (amplFloat[iCell] > 0) {
	356	absIdList[newCellMult] = (UShort_t)(digitInts[iCell]);
	357	//Uncomment when unfolding is done
	358	//if(emcCells.GetCellAmplitude(digitInts[iCell])>0)
	359	//fracList[newCellMult] = amplFloat[iCell]/(emcCells.GetCellAmplitude(digitInts[iCell])*calibration);//get cell calibration value
	360	//else
	361	fracList[newCellMult] = 0;
	362	newCellMult++;
	363	}
	364	}
	365
	366	absIdList.Set(newCellMult);
	367	fracList.Set(newCellMult);
	368
	369	if(newCellMult > 0) { // accept cluster if it has some digit
	370	nClustersNew++;
	371	//Primaries
	372	Int_t parentMult = 0;
	373	Int_t *parentList = clust->GetParents(parentMult);
	374	// fills the ESDCaloCluster
	375	AliESDCaloCluster * ec = new AliESDCaloCluster() ;
	376	ec->SetClusterType(AliESDCaloCluster::kEMCALClusterv1);
	377	ec->SetPosition(xyz);
	378	ec->SetE(clust->GetEnergy());
	379	ec->SetNCells(newCellMult);
	380	//Change type of list from short to ushort
	381	UShort_t *newAbsIdList = new UShort_t[newCellMult];
	382	Double_t *newFracList = new Double_t[newCellMult];
	383	for(Int_t i = 0; i < newCellMult ; i++) {
	384	newAbsIdList[i]=absIdList[i];
	385	newFracList[i]=fracList[i];
	386	}
	387	ec->SetCellsAbsId(newAbsIdList);
	388	ec->SetCellsAmplitudeFraction(newFracList);
	389	ec->SetClusterDisp(clust->GetDispersion());
	390	ec->SetClusterChi2(-1); //not yet implemented
	391	ec->SetM02(elipAxis[0]*elipAxis[0]) ;
	392	ec->SetM20(elipAxis[1]*elipAxis[1]) ;
	393	ec->SetTOF(clust->GetTime()) ; //time-of-fligh
	394	ec->SetNExMax(clust->GetNExMax()); //number of local maxima
	395	TArrayI arrayTrackMatched(1);// Only one track, temporal solution.
	396	arrayTrackMatched[0]= matchedTrack[iClust];
	397	ec->AddTracksMatched(arrayTrackMatched);
	398
	399	TArrayI arrayParents(parentMult,parentList);
	400	ec->AddLabels(arrayParents);
	401
	402	// add the cluster to the esd object
	403	esd->AddCaloCluster(ec);
	404	delete ec;
	405	delete [] newAbsIdList ;
	406	delete [] newFracList ;
	407	}
	408	} // cycle on clusters
	409
	410	delete [] matchedTrack;
	411
	412	esd->SetNumberOfEMCALClusters(nClustersNew);
	413	//if(nClustersNew != nClusters)
	414	//printf(" ##### nClusters %i -> new %i ##### \n", nClusters, nClustersNew );
	415
	416	//Fill ESDCaloCluster with PID weights
	417	AliEMCALPID *pid = new AliEMCALPID;
	418	//pid->SetPrintInfo(kTRUE);
	419	pid->SetReconstructor(kTRUE);
	420	pid->RunPID(esd);
	421	delete pid;
	422
	423	delete digits;
	424	delete clusters;
	425
	426	// printf(" ## AliEMCALReconstructor::FillESD() is ended : ncl %i -> %i ### \n ",nClusters, nClustersNew);
	427	}
	428
	429	//__________________________________________________________________________
	430	void AliEMCALReconstructor::ReadDigitsArrayFromTree(TTree *digitsTree) const
	431	{
	432	// See AliEMCALClusterizer::SetInput(TTree *digitsTree);
	433	if(fgDigitsArr) {
	434	// Clear previous digits
	435	fgDigitsArr->Delete();
	436	delete fgDigitsArr;
	437	}
	438	// Read the digits from the input tree
	439	TBranch *branch = digitsTree->GetBranch("EMCAL");
	440	if (!branch) {
	441	AliError("can't get the branch with the EMCAL digits !");
	442	return;
	443	}
	444	fgDigitsArr = new TClonesArray("AliEMCALDigit",100);
	445	branch->SetAddress(&fgDigitsArr);
	446	branch->GetEntry(0);
	447	}
	448