[u/mrichter/AliRoot.git] / HMPID / AliHMPIDReconstructor.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.                  *
 **************************************************************************/
//.
// HMPID base class to reconstruct an event
//.
//.
//.
#include "AliHMPIDReconstructor.h" //class header
#include "AliHMPID.h"              //Reconstruct() 
#include "AliHMPIDCluster.h"       //Dig2Clu()
#include "AliHMPIDPid.h"           //FillEsd() 
#include "AliHMPIDParam.h"         //FillEsd() 
#include <AliCDBEntry.h>           //ctor
#include <AliCDBManager.h>         //ctor
#include <AliESDEvent.h>           //FillEsd()
#include <AliRawReader.h>          //Reconstruct() for raw digits
#include <AliLog.h>                //
#include "AliHMPIDRawStream.h"     //ConvertDigits()
#include "AliHMPIDRecoParam.h"     //ctor
ClassImp(AliHMPIDReconstructor)

AliHMPIDRecoParam* AliHMPIDReconstructor::fgkRecoParam =0;  // 
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
AliHMPIDReconstructor::AliHMPIDReconstructor():AliReconstructor(),fUserCut(0),fDaqSig(0),fDig(0),fClu(0)
{
//
//ctor
//
  AliHMPIDParam::Instance();                                                        //geometry loaded for reconstruction
  fUserCut = new Int_t[7];
  fClu=new TObjArray(AliHMPIDParam::kMaxCh+1); fClu->SetOwner(kTRUE);
  fDig=new TObjArray(AliHMPIDParam::kMaxCh+1); fDig->SetOwner(kTRUE);
  
  for(int i=AliHMPIDParam::kMinCh;i<=AliHMPIDParam::kMaxCh;i++){ 
    fDig->AddAt(new TClonesArray("AliHMPIDDigit",24000),i);
    TClonesArray *pClus = new TClonesArray("AliHMPIDCluster",24000);
    pClus->SetUniqueID(i);
    fClu->AddAt(pClus,i);
  }

   if(fgkRecoParam!=0x0 && fgkRecoParam->GetUserCutMode()==kTRUE) {
    for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++) {
      fUserCut[iCh] = fgkRecoParam->GetUserCut(iCh);
      AliDebug(1,Form("UserCut successfully loaded (from RecoParam) for chamber %i -> %i ",iCh,fUserCut[iCh]));
    }
  }  
  else {
    for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++) {
      fUserCut[iCh] = 3;                                                                             // minimal requirement for sigma cut
      AliDebug(1,Form("UserCut loaded from defaults for chamber %i -> %i ",iCh,fUserCut[iCh]));
    }
  } 

  AliCDBEntry *pQthreEnt =AliCDBManager::Instance()->Get("HMPID/Calib/Qthre"); //contains TObjArray of 7 TF1
  if(!pQthreEnt) AliFatal("No Qthre available");
  TObjArray *pQthre = (TObjArray*)pQthreEnt->GetObject();
  for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++) {
    if(pQthre->GetEntriesFast()==AliHMPIDParam::kMaxCh+1) {        // for backward compatibility...
      TF1 *pfQthre = (TF1*)pQthre->At(iCh); 
      Double_t tMin,tMax;
      pfQthre->GetRange(tMin,tMax);
      Double_t qthre=pfQthre->Eval(tMin);
      AliDebug(1,Form("Qthre successfully loaded for chamber %i -> %f ",iCh,qthre));
    } else {
      for(Int_t isec=0;isec<=5;isec++) {
       TF1 *pfQthre = (TF1*)pQthre->At(6*iCh+isec); 
       Double_t tMin,tMax;
       pfQthre->GetRange(tMin,tMax);
       Double_t qthre=pfQthre->Eval(tMin);
       AliDebug(1,Form("Qthre successfully loaded for chamber %i  sector %i -> %f ",iCh,isec,qthre));
      }
    }
  }

     
  AliCDBEntry *pDaqSigEnt =AliCDBManager::Instance()->Get("HMPID/Calib/DaqSig");  //contains TObjArray of TObjArray 14 TMatrixF sigmas values for pads 
  if(!pDaqSigEnt) AliFatal("No pedestals from DAQ!");
  fDaqSig = (TObjArray*)pDaqSigEnt->GetObject();
  for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){                  //chambers loop 
    AliDebug(1,Form("DaqSigCut successfully loaded for chamber %i -> %i ",iCh,(Int_t)fDaqSig->At(iCh)->GetUniqueID()));
  }
}//AliHMPIDReconstructor
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
void AliHMPIDReconstructor::Dig2Clu(TObjArray *pDigAll,TObjArray *pCluAll,Int_t *pUserCut,Bool_t isTryUnfold)
{
// Finds all clusters for a given digits list provided not empty. Currently digits list is a list of all digits for a single chamber.
// Puts all found clusters in separate lists, one per clusters. 
// Arguments: pDigAll     - list of digits for all chambers 
//            pCluAll     - list of clusters for all chambers
//            isTryUnfold - flag to choose between CoG and Mathieson fitting  
//  Returns: none    
  TMatrixF padMap(AliHMPIDParam::kMinPx,AliHMPIDParam::kMaxPcx,AliHMPIDParam::kMinPy,AliHMPIDParam::kMaxPcy);  //pads map for single chamber 0..159 x 0..143 
  
  for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){                  //chambers loop 
    TClonesArray *pDigCur=(TClonesArray*)pDigAll->At(iCh);                                //get list of digits for current chamber
    if(pDigCur->GetEntriesFast()==0) continue;                                            //no digits for current chamber
  
    padMap=(Float_t)-1;                                                                   //reset map to -1 (means no digit for this pad)  
    TClonesArray *pCluCur=(TClonesArray*)pCluAll->At(iCh);                                //get list of clusters for current chamber
    
    for(Int_t iDig=0;iDig<pDigCur->GetEntriesFast();iDig++){                              //digits loop to fill pads map
      AliHMPIDDigit *pDig= (AliHMPIDDigit*)pDigCur->At(iDig);                             //get current digit
      padMap( pDig->PadChX(), pDig->PadChY() )=iDig;                                      //fill the map, (padx,pady) cell takes digit index
    }//digits loop to fill digits map 
    
    AliHMPIDCluster clu;                                                                  //tmp cluster to be used as current
    for(Int_t iDig=0;iDig<pDigCur->GetEntriesFast();iDig++){                              //digits loop for current chamber
      AliHMPIDDigit *pDig=(AliHMPIDDigit*)pDigCur->At(iDig);                              //take current digit
      if(!(pDig=UseDig(pDig->PadChX(),pDig->PadChY(),pDigCur,&padMap))) continue;         //this digit is already taken in FormClu(), go after next digit
      FormClu(&clu,pDig,pDigCur,&padMap);                                                 //form cluster starting from this digit by recursion
      clu.Solve(pCluCur,pUserCut,isTryUnfold);                                 //solve this cluster and add all unfolded clusters to provided list  
      clu.Reset();                                                                        //empty current cluster
    }//digits loop for current chamber
  }//chambers loop
}//Dig2Clu()
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
void  AliHMPIDReconstructor::FormClu(AliHMPIDCluster *pClu,AliHMPIDDigit *pDig,TClonesArray *pDigLst,TMatrixF *pDigMap)
{
// Forms the initial cluster as a combination of all adjascent digits. Starts from the given digit then calls itself recursevly  for all neighbours.
// Arguments: pClu - pointer to cluster being formed
//   Returns: none   
  pClu->DigAdd(pDig);//take this digit in cluster

  Int_t cnt=0,cx[4],cy[4];
  
  if(pDig->PadPcX() != AliHMPIDParam::kMinPx){cx[cnt]=pDig->PadChX()-1; cy[cnt]=pDig->PadChY()  ;cnt++;}       //left
  if(pDig->PadPcX() != AliHMPIDParam::kMaxPx){cx[cnt]=pDig->PadChX()+1; cy[cnt]=pDig->PadChY()  ;cnt++;}       //right
  if(pDig->PadPcY() != AliHMPIDParam::kMinPy){cx[cnt]=pDig->PadChX()  ; cy[cnt]=pDig->PadChY()-1;cnt++;}       //down
  if(pDig->PadPcY() != AliHMPIDParam::kMaxPy){cx[cnt]=pDig->PadChX()  ; cy[cnt]=pDig->PadChY()+1;cnt++;}       //up
  
  for (Int_t i=0;i<cnt;i++){//neighbours loop
    if((pDig=UseDig(cx[i],cy[i],pDigLst,pDigMap))) FormClu(pClu,pDig,pDigLst,pDigMap);   //check if this neighbour pad fired and mark it as taken  
  }//neighbours loop  
}//FormClu()
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
void AliHMPIDReconstructor::Reconstruct(TTree *pDigTree,TTree *pCluTree)const
{
//Invoked  by AliReconstruction to convert digits to clusters i.e. reconstruct simulated data
//Arguments: pDigTree - pointer to Digit tree
//           pCluTree - poitner to Cluster tree
//  Returns: none    
  AliDebug(1,"Start.");
  for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++) {
    pCluTree->Branch(Form("HMPID%d",iCh),&((*fClu)[iCh]),7);
    pDigTree->SetBranchAddress(Form("HMPID%d",iCh),&((*fDig)[iCh]));
  }   
  pDigTree->GetEntry(0);
  Dig2Clu(fDig,fClu,fUserCut);     //cluster finder 
  pCluTree->Fill();                //fill tree for current event
  
  for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){
    fDig->At(iCh)->Clear();
    fClu->At(iCh)->Clear();
  }
  
  AliDebug(1,"Stop.");      
}//Reconstruct(for simulated digits)
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
void AliHMPIDReconstructor::ConvertDigits(AliRawReader *pRR,TTree *pDigTree)const
{
//Invoked  by AliReconstruction to convert raw digits from DDL files to digits
//Arguments: pRR - ALICE raw reader pointer
//           pDigTree - pointer to Digit tree
//  Returns: none    
  AliDebug(1,"Start.");
//  Int_t digcnt=0;
  
  Int_t iDigCnt[7]={0,0,0,0,0,0,0};

  for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){
    pDigTree->Branch(Form("HMPID%d",iCh),&((*fDig)[iCh]));
  }
    
  AliHMPIDRawStream stream(pRR);    
  
  while(stream.Next())
  {
    Int_t ch = AliHMPIDParam::DDL2C(stream.GetDDLNumber());
    for(Int_t iPad=0;iPad<stream.GetNPads();iPad++) {
      AliHMPIDDigit dig(stream.GetPadArray()[iPad],stream.GetChargeArray()[iPad]);
      if(!IsDigSurvive(&dig)) continue; 
      new((*((TClonesArray*)fDig->At(ch)))[iDigCnt[ch]++]) AliHMPIDDigit(dig); //add this digit to the tmp list 
    }
  }
  
  pDigTree->Fill();
  
  for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++)fDig->At(iCh)->Clear();
  
  AliDebug(1,"Stop.");
}//Reconstruct digits from raw digits
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
void AliHMPIDReconstructor::FillESD(TTree */*digitsTree*/, TTree */*clustersTree*/, AliESDEvent *pESD) const
{
// Fill ESD with all the infos from HMPID
// Probability vector from AliHMPIDPid
//...
  AliHMPIDPid pID;
  Double_t prob[AliPID::kSPECIES];
  
  for(Int_t iTrk=0;iTrk<pESD->GetNumberOfTracks();iTrk++){//ESD tracks loop
    AliESDtrack *pTrk = pESD->GetTrack(iTrk);// get next reconstructed track
    pID.FindPid(pTrk,AliPID::kSPECIES,prob);
    pTrk->SetHMPIDpid(prob);
  }//ESD tracks loop
  
}//FillESD()
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	// HMPID base class to reconstruct an event
	17	//.
	18	//.
	19	//.
	20	#include "AliHMPIDReconstructor.h" //class header
	21	#include "AliHMPID.h" //Reconstruct()
	22	#include "AliHMPIDCluster.h" //Dig2Clu()
	23	#include "AliHMPIDPid.h" //FillEsd()
	24	#include "AliHMPIDParam.h" //FillEsd()
	25	#include <AliCDBEntry.h> //ctor
	26	#include <AliCDBManager.h> //ctor
	27	#include <AliESDEvent.h> //FillEsd()
	28	#include <AliRawReader.h> //Reconstruct() for raw digits
	29	#include <AliLog.h> //
	30	#include "AliHMPIDRawStream.h" //ConvertDigits()
	31	#include "AliHMPIDRecoParam.h" //ctor
	32	ClassImp(AliHMPIDReconstructor)
	33
	34	AliHMPIDRecoParam* AliHMPIDReconstructor::fgkRecoParam =0; //
	35	//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	36	AliHMPIDReconstructor::AliHMPIDReconstructor():AliReconstructor(),fUserCut(0),fDaqSig(0),fDig(0),fClu(0)
	37	{
	38	//
	39	//ctor
	40	//
	41	AliHMPIDParam::Instance(); //geometry loaded for reconstruction
	42	fUserCut = new Int_t[7];
	43	fClu=new TObjArray(AliHMPIDParam::kMaxCh+1); fClu->SetOwner(kTRUE);
	44	fDig=new TObjArray(AliHMPIDParam::kMaxCh+1); fDig->SetOwner(kTRUE);
	45
	46	for(int i=AliHMPIDParam::kMinCh;i<=AliHMPIDParam::kMaxCh;i++){
	47	fDig->AddAt(new TClonesArray("AliHMPIDDigit",24000),i);
	48	TClonesArray *pClus = new TClonesArray("AliHMPIDCluster",24000);
	49	pClus->SetUniqueID(i);
	50	fClu->AddAt(pClus,i);
	51	}
	52
	53	if(fgkRecoParam!=0x0 && fgkRecoParam->GetUserCutMode()==kTRUE) {
	54	for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++) {
	55	fUserCut[iCh] = fgkRecoParam->GetUserCut(iCh);
	56	AliDebug(1,Form("UserCut successfully loaded (from RecoParam) for chamber %i -> %i ",iCh,fUserCut[iCh]));
	57	}
	58	}
	59	else {
	60	for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++) {
	61	fUserCut[iCh] = 3; // minimal requirement for sigma cut
	62	AliDebug(1,Form("UserCut loaded from defaults for chamber %i -> %i ",iCh,fUserCut[iCh]));
	63	}
	64	}
	65
	66	AliCDBEntry *pQthreEnt =AliCDBManager::Instance()->Get("HMPID/Calib/Qthre"); //contains TObjArray of 7 TF1
	67	if(!pQthreEnt) AliFatal("No Qthre available");
	68	TObjArray pQthre = (TObjArray)pQthreEnt->GetObject();
	69	for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++) {
	70	if(pQthre->GetEntriesFast()==AliHMPIDParam::kMaxCh+1) { // for backward compatibility...
	71	TF1 pfQthre = (TF1)pQthre->At(iCh);
	72	Double_t tMin,tMax;
	73	pfQthre->GetRange(tMin,tMax);
	74	Double_t qthre=pfQthre->Eval(tMin);
	75	AliDebug(1,Form("Qthre successfully loaded for chamber %i -> %f ",iCh,qthre));
	76	} else {
	77	for(Int_t isec=0;isec<=5;isec++) {
	78	TF1 pfQthre = (TF1)pQthre->At(6*iCh+isec);
	79	Double_t tMin,tMax;
	80	pfQthre->GetRange(tMin,tMax);
	81	Double_t qthre=pfQthre->Eval(tMin);
	82	AliDebug(1,Form("Qthre successfully loaded for chamber %i sector %i -> %f ",iCh,isec,qthre));
	83	}
	84	}
	85	}
	86
	87
	88	AliCDBEntry *pDaqSigEnt =AliCDBManager::Instance()->Get("HMPID/Calib/DaqSig"); //contains TObjArray of TObjArray 14 TMatrixF sigmas values for pads
	89	if(!pDaqSigEnt) AliFatal("No pedestals from DAQ!");
	90	fDaqSig = (TObjArray*)pDaqSigEnt->GetObject();
	91	for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){ //chambers loop
	92	AliDebug(1,Form("DaqSigCut successfully loaded for chamber %i -> %i ",iCh,(Int_t)fDaqSig->At(iCh)->GetUniqueID()));
	93	}
	94	}//AliHMPIDReconstructor
	95	//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	96	void AliHMPIDReconstructor::Dig2Clu(TObjArray pDigAll,TObjArray pCluAll,Int_t *pUserCut,Bool_t isTryUnfold)
	97	{
	98	// Finds all clusters for a given digits list provided not empty. Currently digits list is a list of all digits for a single chamber.
	99	// Puts all found clusters in separate lists, one per clusters.
	100	// Arguments: pDigAll - list of digits for all chambers
	101	// pCluAll - list of clusters for all chambers
	102	// isTryUnfold - flag to choose between CoG and Mathieson fitting
	103	// Returns: none
	104	TMatrixF padMap(AliHMPIDParam::kMinPx,AliHMPIDParam::kMaxPcx,AliHMPIDParam::kMinPy,AliHMPIDParam::kMaxPcy); //pads map for single chamber 0..159 x 0..143
	105
	106	for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){ //chambers loop
	107	TClonesArray pDigCur=(TClonesArray)pDigAll->At(iCh); //get list of digits for current chamber
	108	if(pDigCur->GetEntriesFast()==0) continue; //no digits for current chamber
	109
	110	padMap=(Float_t)-1; //reset map to -1 (means no digit for this pad)
	111	TClonesArray pCluCur=(TClonesArray)pCluAll->At(iCh); //get list of clusters for current chamber
	112
	113	for(Int_t iDig=0;iDig<pDigCur->GetEntriesFast();iDig++){ //digits loop to fill pads map
	114	AliHMPIDDigit pDig= (AliHMPIDDigit)pDigCur->At(iDig); //get current digit
	115	padMap( pDig->PadChX(), pDig->PadChY() )=iDig; //fill the map, (padx,pady) cell takes digit index
	116	}//digits loop to fill digits map
	117
	118	AliHMPIDCluster clu; //tmp cluster to be used as current
	119	for(Int_t iDig=0;iDig<pDigCur->GetEntriesFast();iDig++){ //digits loop for current chamber
	120	AliHMPIDDigit pDig=(AliHMPIDDigit)pDigCur->At(iDig); //take current digit
	121	if(!(pDig=UseDig(pDig->PadChX(),pDig->PadChY(),pDigCur,&padMap))) continue; //this digit is already taken in FormClu(), go after next digit
	122	FormClu(&clu,pDig,pDigCur,&padMap); //form cluster starting from this digit by recursion
	123	clu.Solve(pCluCur,pUserCut,isTryUnfold); //solve this cluster and add all unfolded clusters to provided list
	124	clu.Reset(); //empty current cluster
	125	}//digits loop for current chamber
	126	}//chambers loop
	127	}//Dig2Clu()
	128	//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	129	void AliHMPIDReconstructor::FormClu(AliHMPIDCluster pClu,AliHMPIDDigit pDig,TClonesArray pDigLst,TMatrixF pDigMap)
	130	{
	131	// Forms the initial cluster as a combination of all adjascent digits. Starts from the given digit then calls itself recursevly for all neighbours.
	132	// Arguments: pClu - pointer to cluster being formed
	133	// Returns: none
	134	pClu->DigAdd(pDig);//take this digit in cluster
	135
	136	Int_t cnt=0,cx[4],cy[4];
	137
	138	if(pDig->PadPcX() != AliHMPIDParam::kMinPx){cx[cnt]=pDig->PadChX()-1; cy[cnt]=pDig->PadChY() ;cnt++;} //left
	139	if(pDig->PadPcX() != AliHMPIDParam::kMaxPx){cx[cnt]=pDig->PadChX()+1; cy[cnt]=pDig->PadChY() ;cnt++;} //right
	140	if(pDig->PadPcY() != AliHMPIDParam::kMinPy){cx[cnt]=pDig->PadChX() ; cy[cnt]=pDig->PadChY()-1;cnt++;} //down
	141	if(pDig->PadPcY() != AliHMPIDParam::kMaxPy){cx[cnt]=pDig->PadChX() ; cy[cnt]=pDig->PadChY()+1;cnt++;} //up
	142
	143	for (Int_t i=0;i<cnt;i++){//neighbours loop
	144	if((pDig=UseDig(cx[i],cy[i],pDigLst,pDigMap))) FormClu(pClu,pDig,pDigLst,pDigMap); //check if this neighbour pad fired and mark it as taken
	145	}//neighbours loop
	146	}//FormClu()
	147	//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	148	void AliHMPIDReconstructor::Reconstruct(TTree pDigTree,TTree pCluTree)const
	149	{
	150	//Invoked by AliReconstruction to convert digits to clusters i.e. reconstruct simulated data
	151	//Arguments: pDigTree - pointer to Digit tree
	152	// pCluTree - poitner to Cluster tree
	153	// Returns: none
	154	AliDebug(1,"Start.");
	155	for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++) {
	156	pCluTree->Branch(Form("HMPID%d",iCh),&((*fClu)[iCh]),7);
	157	pDigTree->SetBranchAddress(Form("HMPID%d",iCh),&((*fDig)[iCh]));
	158	}
	159	pDigTree->GetEntry(0);
	160	Dig2Clu(fDig,fClu,fUserCut); //cluster finder
	161	pCluTree->Fill(); //fill tree for current event
	162
	163	for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){
	164	fDig->At(iCh)->Clear();
	165	fClu->At(iCh)->Clear();
	166	}
	167
	168	AliDebug(1,"Stop.");
	169	}//Reconstruct(for simulated digits)
	170	//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	171	void AliHMPIDReconstructor::ConvertDigits(AliRawReader pRR,TTree pDigTree)const
	172	{
	173	//Invoked by AliReconstruction to convert raw digits from DDL files to digits
	174	//Arguments: pRR - ALICE raw reader pointer
	175	// pDigTree - pointer to Digit tree
	176	// Returns: none
	177	AliDebug(1,"Start.");
	178	// Int_t digcnt=0;
	179
	180	Int_t iDigCnt[7]={0,0,0,0,0,0,0};
	181
	182	for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){
	183	pDigTree->Branch(Form("HMPID%d",iCh),&((*fDig)[iCh]));
	184	}
	185
	186	AliHMPIDRawStream stream(pRR);
	187
	188	while(stream.Next())
	189	{
	190	Int_t ch = AliHMPIDParam::DDL2C(stream.GetDDLNumber());
	191	for(Int_t iPad=0;iPad<stream.GetNPads();iPad++) {
	192	AliHMPIDDigit dig(stream.GetPadArray()[iPad],stream.GetChargeArray()[iPad]);
	193	if(!IsDigSurvive(&dig)) continue;
	194	new((((TClonesArray)fDig->At(ch)))[iDigCnt[ch]++]) AliHMPIDDigit(dig); //add this digit to the tmp list
	195	}
	196	}
	197
	198	pDigTree->Fill();
	199
	200	for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++)fDig->At(iCh)->Clear();
	201
	202	AliDebug(1,"Stop.");
	203	}//Reconstruct digits from raw digits
	204	//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	205	void AliHMPIDReconstructor::FillESD(TTree /digitsTree/, TTree /clustersTree/, AliESDEvent *pESD) const
	206	{
	207	// Fill ESD with all the infos from HMPID
	208	// Probability vector from AliHMPIDPid
	209	//...
	210	AliHMPIDPid pID;
	211	Double_t prob[AliPID::kSPECIES];
	212
	213	for(Int_t iTrk=0;iTrk<pESD->GetNumberOfTracks();iTrk++){//ESD tracks loop
	214	AliESDtrack *pTrk = pESD->GetTrack(iTrk);// get next reconstructed track
	215	pID.FindPid(pTrk,AliPID::kSPECIES,prob);
	216	pTrk->SetHMPIDpid(prob);
	217	}//ESD tracks loop
	218
	219	}//FillESD()