[u/mrichter/AliRoot.git] / HMPID / AliHMPIDDigitizer.cxx

/**************************************************************************
 * Copyright(c) 1998-2000, 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.                  *
 **************************************************************************/
//.
//.
//.
//.
//.
#include <AliRun.h>
#include <AliRunLoader.h>
#include "AliDigitizationInput.h"
#include <AliLoader.h>
#include "AliLog.h"
#include <AliCDBEntry.h> 
#include <AliCDBManager.h>
#include "AliHMPIDDigitizer.h"
#include "AliHMPIDReconstructor.h"
#include "AliHMPIDDigit.h"
#include "AliHMPID.h"
#include "AliHMPIDParam.h"
#include <TRandom.h>
#include <TMath.h>
#include <TTree.h>
#include <TObjArray.h>

ClassImp(AliHMPIDDigitizer)

Bool_t AliHMPIDDigitizer::fgDoNoise=kTRUE;
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
void AliHMPIDDigitizer::Digitize(Option_t*)
{
// This methode is responsible for merging sdigits to a list of digits
//Disintegration leeds to the fact that one hit affects several neighbouring pads, which means that the same pad might be affected by few hits.     
  AliDebug(1,Form("Start with %i input(s) for event %i",fDigInput->GetNinputs(),fDigInput->GetOutputEventNr()));
//First we read all sdigits from all inputs  
  AliRunLoader *pInRunLoader=0;//in and out Run loaders
  AliLoader    *pInRichLoader=0;//in and out HMPID loaders  
  static TClonesArray sdigs("AliHMPIDDigit");//tmp storage for sdigits sum up from all input files
  Int_t total=0;
  for(Int_t inFileN=0;inFileN<fDigInput->GetNinputs();inFileN++){//files loop
    pInRunLoader  = AliRunLoader::GetRunLoader(fDigInput->GetInputFolderName(inFileN));          //get run loader from current input 
    pInRichLoader = pInRunLoader->GetLoader("HMPIDLoader"); if(pInRichLoader==0) continue;       //no HMPID in this input, check the next input
    if (!pInRunLoader->GetAliRun()) pInRunLoader->LoadgAlice();
    AliHMPID* pInRich=(AliHMPID*)pInRunLoader->GetAliRun()->GetDetector("HMPID");                  //take HMPID from current input
    pInRichLoader->LoadSDigits(); pInRichLoader->TreeS()->GetEntry(0);                          //take list of HMPID sdigits from current input 
    AliDebug(1,Form("input %i has %i sdigits",inFileN,pInRich->SdiLst()->GetEntries()));
    for(Int_t i=0;i<pInRich->SdiLst()->GetEntries();i++){                                        //collect sdigits from current input
      AliHMPIDDigit *pSDig=(AliHMPIDDigit*)pInRich->SdiLst()->At(i);
      pSDig->AddTidOffset(fDigInput->GetMask(inFileN));                                          //apply TID shift since all inputs count tracks independently starting from 0
      new(sdigs[total++]) AliHMPIDDigit(*pSDig);       
    }
    pInRichLoader->UnloadSDigits();   pInRich->SdiReset(); //close current input and reset 
  }//files loop

  //PH  if(sdigs.GetEntries()==0) return;                                                              //no sdigits collected, nothing to convert  
  
  AliRunLoader *pOutRunLoader  = AliRunLoader::GetRunLoader(fDigInput->GetOutputFolderName());    //open output stream (only 1 possible)
  AliLoader    *pOutRichLoader = pOutRunLoader->GetLoader("HMPIDLoader");                         //take output HMPID loader
  AliRun *pArun = pOutRunLoader->GetAliRun();
  AliHMPID      *pOutRich       = (AliHMPID*)pArun->GetDetector("HMPID");      //take output HMPID
  pOutRichLoader->MakeTree("D");   pOutRich->MakeBranch("D");                                    //create TreeD in output stream

  Sdi2Dig(&sdigs,pOutRich->DigLst());
  
  pOutRichLoader->TreeD()->Fill();              //fill the output tree with the list of digits
  pOutRichLoader->WriteDigits("OVERWRITE");     //serialize them to file
  
  sdigs.Clear();                      //remove all tmp sdigits
  pOutRichLoader->UnloadDigits();   pOutRich->DigReset();
}//Exec()
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
void AliHMPIDDigitizer::Sdi2Dig(TClonesArray *pSdiLst,TObjArray *pDigLst)
{
// Converts list of sdigits to 7 lists of digits, one per each chamber
// Arguments: pSDigLst - list of all sdigits
//            pDigLst  - list of 7 lists of digits        
//   Returns: none  
  
  TClonesArray *pLst[7]; Int_t iCnt[7];

  for(Int_t i=0;i<7;i++){
    pLst[i]=(TClonesArray*)(*pDigLst)[i];
    iCnt[i]=0; if(pLst[i]->GetEntries()!=0) AliErrorClass("Some of digits lists is not empty");         //in principle those lists should be empty                                                                       
  }
  
  // make noise array
  Float_t arrNoise[7][6][80][48], arrSigmaPed[7][6][80][48];
  if(fgDoNoise) {
    for (Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++)
      for (Int_t iPc=AliHMPIDParam::kMinPc;iPc<=AliHMPIDParam::kMaxPc;iPc++)
        for(Int_t iPx=AliHMPIDParam::kMinPx;iPx<=AliHMPIDParam::kMaxPx;iPx++)
          for(Int_t iPy=AliHMPIDParam::kMinPy;iPy<=AliHMPIDParam::kMaxPy;iPy++){
            arrNoise[iCh][iPc][iPx][iPy] = gRandom->Gaus(0,1.);
            arrSigmaPed[iCh][iPc][iPx][iPy] = 1.;
          }
          
    AliCDBEntry *pDaqSigEnt = AliCDBManager::Instance()->Get("HMPID/Calib/DaqSig");  //contains TObjArray of TObjArray 14 TMatrixF sigmas values for pads 
   
    if(pDaqSigEnt){
      TObjArray *pDaqSig = (TObjArray*)pDaqSigEnt->GetObject();
      for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){                  //chambers loop    
	TMatrixF *pM = (TMatrixF*)pDaqSig->At(iCh);     
	for (Int_t iPc=AliHMPIDParam::kMinPc;iPc<=AliHMPIDParam::kMaxPc;iPc++)
	  for(Int_t iPx=AliHMPIDParam::kMinPx;iPx<=AliHMPIDParam::kMaxPx;iPx++)
	    for(Int_t iPy=AliHMPIDParam::kMinPy;iPy<=AliHMPIDParam::kMaxPy;iPy++){
	      Int_t padX = (iPc%2)*AliHMPIDParam::kPadPcX+iPx; 
	      Int_t padY = (iPc/2)*AliHMPIDParam::kPadPcY+iPy;
	      if((*pM)(padX,padY)>0.){
		arrNoise[iCh][iPc][iPx][iPy] = gRandom->Gaus(0,(*pM)(padX,padY));
		arrSigmaPed[iCh][iPc][iPx][iPy] = (*pM)(padX,padY);}
	      else{
		arrNoise[iCh][iPc][iPx][iPy] = gRandom->Gaus(0,1.);
		arrSigmaPed[iCh][iPc][iPx][iPy] = 1.;}
	    } 
      }
    }
  }  
  
  pSdiLst->Sort();  
                     
  Int_t iPad=-1,iCh=-1,iNdigPad=-1,aTids[3]={-1,-1,-1}; Float_t q=-1;
  for(Int_t i=0;i<pSdiLst->GetEntries();i++){                                                                  //sdigits loop (sorted)
    AliHMPIDDigit *pSdig=(AliHMPIDDigit*)pSdiLst->At(i);                                                       //take current sdigit
    if(pSdig->Pad()==iPad){                                                                                    //if the same pad 
      q+=pSdig->Q();                                                                                           //sum up charge
      iNdigPad++; if(iNdigPad<=3) aTids[iNdigPad-1]=pSdig->GetTrack(0);                                        //collect TID 
      continue;
    }
    if(i!=0 && iCh>=AliHMPIDParam::kMinCh && iCh<=AliHMPIDParam::kMaxCh){
      AliHMPIDParam::Instance()->SetThreshold((TMath::Nint(arrSigmaPed[iCh][pSdig->Pc()][pSdig->PadPcX()][pSdig->PadPcY()])*AliHMPIDParam::Nsig()));
      if(AliHMPIDParam::IsOverTh(q)) new((*pLst[iCh])[iCnt[iCh]++]) AliHMPIDDigit(iPad,(Int_t)q,aTids);}  //do not create digit for the very first sdigit 
    
    iPad=pSdig->Pad(); iCh=AliHMPIDParam::A2C(iPad);                                                            //new sdigit comes, reset collectors
    iNdigPad=1;
    aTids[0]=pSdig->GetTrack(0);aTids[1]=aTids[2]=-1; 
    q=pSdig->Q();
    if(fgDoNoise) q+=arrNoise[iCh][pSdig->Pc()][pSdig->PadPcX()][pSdig->PadPcY()];
    arrNoise[iCh][pSdig->Pc()][pSdig->PadPcX()][pSdig->PadPcY()]=0;
  }//sdigits loop (sorted)
  
  if(iCh>=AliHMPIDParam::kMinCh && iCh<=AliHMPIDParam::kMaxCh){
    Int_t pc = AliHMPIDParam::A2P(iPad);
    Int_t px = AliHMPIDParam::A2X(iPad); 
    Int_t py = AliHMPIDParam::A2Y(iPad);
    AliHMPIDParam::Instance()->SetThreshold((TMath::Nint(arrSigmaPed[iCh][pc][px][py])*AliHMPIDParam::Nsig()));
    if(AliHMPIDParam::IsOverTh(q)) new((*pLst[iCh])[iCnt[iCh]++]) AliHMPIDDigit(iPad,(Int_t)q,aTids);
  }  //add the last one, in case of empty sdigits list q=-1 
  
// add noise pad above threshold with no signal merged...if any
  if(!fgDoNoise) return;
  
  aTids[0]=aTids[1]=aTids[2]=-1;
  for (Int_t iChCurr=AliHMPIDParam::kMinCh;iChCurr<=AliHMPIDParam::kMaxCh;iChCurr++){
    for (Int_t iPc=AliHMPIDParam::kMinPc;iPc<=AliHMPIDParam::kMaxPc;iPc++)
      for(Int_t iPx=AliHMPIDParam::kMinPx;iPx<=AliHMPIDParam::kMaxPx;iPx++)
        for(Int_t iPy=AliHMPIDParam::kMinPy;iPy<=AliHMPIDParam::kMaxPy;iPy++) {
          Float_t qNoise = arrNoise[iChCurr][iPc][iPx][iPy];
          AliHMPIDParam::Instance()->SetThreshold((TMath::Nint(arrSigmaPed[iChCurr][iPc][iPx][iPy])*AliHMPIDParam::Nsig()));
          if(AliHMPIDParam::IsOverTh(qNoise)) new((*pLst[iChCurr])[iCnt[iChCurr]++]) AliHMPIDDigit(AliHMPIDParam::Abs(iChCurr,iPc,iPx,iPy),(Int_t)qNoise,aTids);
        }
  }        
}//Sdi2Dig()
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Commit	Line	Data
d3da6dc4	1	/**************************************************************************
	2	* Copyright(c) 1998-2000, 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	**************************************************************************/
1b10372c	15	//.
	16	//.
	17	//.
	18	//.
	19	//.
	20	#include <AliRun.h>
d3da6dc4	21	#include <AliRunLoader.h>
f21fc003	22	#include "AliDigitizationInput.h"
d3da6dc4	23	#include <AliLoader.h>
6f842d2a	24	#include "AliLog.h"
23ba1e93	25	#include <AliCDBEntry.h>
23ba1e93	26	#include <AliCDBManager.h>
1b10372c	27	#include "AliHMPIDDigitizer.h"
23ba1e93	28	#include "AliHMPIDReconstructor.h"
1b10372c	29	#include "AliHMPIDDigit.h"
1b10372c	30	#include "AliHMPID.h"
ae5a42aa	31	#include "AliHMPIDParam.h"
1b10372c	32	#include <TRandom.h>
23ba1e93	33	#include <TMath.h>
c93255fe	34	#include <TTree.h>
23ba1e93	35	#include <TObjArray.h>
d3da6dc4	36
	37	ClassImp(AliHMPIDDigitizer)
	38
23ba1e93	39	Bool_t AliHMPIDDigitizer::fgDoNoise=kTRUE;
d3da6dc4	40	//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
f21fc003	41	void AliHMPIDDigitizer::Digitize(Option_t*)
d3da6dc4	42	{
	43	// This methode is responsible for merging sdigits to a list of digits
	44	//Disintegration leeds to the fact that one hit affects several neighbouring pads, which means that the same pad might be affected by few hits.
f21fc003	45	AliDebug(1,Form("Start with %i input(s) for event %i",fDigInput->GetNinputs(),fDigInput->GetOutputEventNr()));
d3da6dc4	46	//First we read all sdigits from all inputs
	47	AliRunLoader *pInRunLoader=0;//in and out Run loaders
	48	AliLoader *pInRichLoader=0;//in and out HMPID loaders
d6183365	49	static TClonesArray sdigs("AliHMPIDDigit");//tmp storage for sdigits sum up from all input files
d3da6dc4	50	Int_t total=0;
f21fc003	51	for(Int_t inFileN=0;inFileN<fDigInput->GetNinputs();inFileN++){//files loop
f21fc003	52	pInRunLoader = AliRunLoader::GetRunLoader(fDigInput->GetInputFolderName(inFileN)); //get run loader from current input
d3da6dc4	53	pInRichLoader = pInRunLoader->GetLoader("HMPIDLoader"); if(pInRichLoader==0) continue; //no HMPID in this input, check the next input
	54	if (!pInRunLoader->GetAliRun()) pInRunLoader->LoadgAlice();
	55	AliHMPID* pInRich=(AliHMPID*)pInRunLoader->GetAliRun()->GetDetector("HMPID"); //take HMPID from current input
	56	pInRichLoader->LoadSDigits(); pInRichLoader->TreeS()->GetEntry(0); //take list of HMPID sdigits from current input
	57	AliDebug(1,Form("input %i has %i sdigits",inFileN,pInRich->SdiLst()->GetEntries()));
	58	for(Int_t i=0;i<pInRich->SdiLst()->GetEntries();i++){ //collect sdigits from current input
	59	AliHMPIDDigit pSDig=(AliHMPIDDigit)pInRich->SdiLst()->At(i);
f21fc003	60	pSDig->AddTidOffset(fDigInput->GetMask(inFileN)); //apply TID shift since all inputs count tracks independently starting from 0
d3da6dc4	61	new(sdigs[total++]) AliHMPIDDigit(*pSDig);
	62	}
	63	pInRichLoader->UnloadSDigits(); pInRich->SdiReset(); //close current input and reset
	64	}//files loop
	65
	66	//PH if(sdigs.GetEntries()==0) return; //no sdigits collected, nothing to convert
	67
f21fc003	68	AliRunLoader *pOutRunLoader = AliRunLoader::GetRunLoader(fDigInput->GetOutputFolderName()); //open output stream (only 1 possible)
d3da6dc4	69	AliLoader *pOutRichLoader = pOutRunLoader->GetLoader("HMPIDLoader"); //take output HMPID loader
1b10372c	70	AliRun *pArun = pOutRunLoader->GetAliRun();
1b10372c	71	AliHMPID pOutRich = (AliHMPID)pArun->GetDetector("HMPID"); //take output HMPID
d3da6dc4	72	pOutRichLoader->MakeTree("D"); pOutRich->MakeBranch("D"); //create TreeD in output stream
	73
	74	Sdi2Dig(&sdigs,pOutRich->DigLst());
	75
	76	pOutRichLoader->TreeD()->Fill(); //fill the output tree with the list of digits
	77	pOutRichLoader->WriteDigits("OVERWRITE"); //serialize them to file
	78
	79	sdigs.Clear(); //remove all tmp sdigits
	80	pOutRichLoader->UnloadDigits(); pOutRich->DigReset();
	81	}//Exec()
	82	//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	83	void AliHMPIDDigitizer::Sdi2Dig(TClonesArray pSdiLst,TObjArray pDigLst)
	84	{
	85	// Converts list of sdigits to 7 lists of digits, one per each chamber
	86	// Arguments: pSDigLst - list of all sdigits
	87	// pDigLst - list of 7 lists of digits
	88	// Returns: none
	89
	90	TClonesArray *pLst[7]; Int_t iCnt[7];
1b10372c	91
d3da6dc4	92	for(Int_t i=0;i<7;i++){
d3da6dc4	93	pLst[i]=(TClonesArray)(pDigLst)[i];
3c6274c1	94	iCnt[i]=0; if(pLst[i]->GetEntries()!=0) AliErrorClass("Some of digits lists is not empty"); //in principle those lists should be empty
d3da6dc4	95	}
6f842d2a	96
c5c19d6a	97	// make noise array
cd2a74bf	98	Float_t arrNoise[7][6][80][48], arrSigmaPed[7][6][80][48];
94b1fbfa	99	if(fgDoNoise) {
6f842d2a	100	for (Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++)
ae5a42aa	101	for (Int_t iPc=AliHMPIDParam::kMinPc;iPc<=AliHMPIDParam::kMaxPc;iPc++)
ae5a42aa	102	for(Int_t iPx=AliHMPIDParam::kMinPx;iPx<=AliHMPIDParam::kMaxPx;iPx++)
23ba1e93	103	for(Int_t iPy=AliHMPIDParam::kMinPy;iPy<=AliHMPIDParam::kMaxPy;iPy++){
cd2a74bf	104	arrNoise[iCh][iPc][iPx][iPy] = gRandom->Gaus(0,1.);
	105	arrSigmaPed[iCh][iPc][iPx][iPy] = 1.;
	106	}
	107
	108	AliCDBEntry *pDaqSigEnt = AliCDBManager::Instance()->Get("HMPID/Calib/DaqSig"); //contains TObjArray of TObjArray 14 TMatrixF sigmas values for pads
	109
	110	if(pDaqSigEnt){
	111	TObjArray pDaqSig = (TObjArray)pDaqSigEnt->GetObject();
	112	for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){ //chambers loop
	113	TMatrixF pM = (TMatrixF)pDaqSig->At(iCh);
	114	for (Int_t iPc=AliHMPIDParam::kMinPc;iPc<=AliHMPIDParam::kMaxPc;iPc++)
	115	for(Int_t iPx=AliHMPIDParam::kMinPx;iPx<=AliHMPIDParam::kMaxPx;iPx++)
	116	for(Int_t iPy=AliHMPIDParam::kMinPy;iPy<=AliHMPIDParam::kMaxPy;iPy++){
	117	Int_t padX = (iPc%2)*AliHMPIDParam::kPadPcX+iPx;
	118	Int_t padY = (iPc/2)*AliHMPIDParam::kPadPcY+iPy;
	119	if((*pM)(padX,padY)>0.){
	120	arrNoise[iCh][iPc][iPx][iPy] = gRandom->Gaus(0,(*pM)(padX,padY));
	121	arrSigmaPed[iCh][iPc][iPx][iPy] = (*pM)(padX,padY);}
	122	else{
	123	arrNoise[iCh][iPc][iPx][iPy] = gRandom->Gaus(0,1.);
	124	arrSigmaPed[iCh][iPc][iPx][iPy] = 1.;}
	125	}
	126	}
	127	}
c5c19d6a	128	}
d3da6dc4	129
	130	pSdiLst->Sort();
	131
	132	Int_t iPad=-1,iCh=-1,iNdigPad=-1,aTids[3]={-1,-1,-1}; Float_t q=-1;
	133	for(Int_t i=0;i<pSdiLst->GetEntries();i++){ //sdigits loop (sorted)
23ba1e93	134	AliHMPIDDigit pSdig=(AliHMPIDDigit)pSdiLst->At(i); //take current sdigit
d3da6dc4	135	if(pSdig->Pad()==iPad){ //if the same pad
	136	q+=pSdig->Q(); //sum up charge
	137	iNdigPad++; if(iNdigPad<=3) aTids[iNdigPad-1]=pSdig->GetTrack(0); //collect TID
	138	continue;
	139	}
23ba1e93	140	if(i!=0 && iCh>=AliHMPIDParam::kMinCh && iCh<=AliHMPIDParam::kMaxCh){
cd2a74bf	141	AliHMPIDParam::Instance()->SetThreshold((TMath::Nint(arrSigmaPed[iCh][pSdig->Pc()][pSdig->PadPcX()][pSdig->PadPcY()])*AliHMPIDParam::Nsig()));
23ba1e93	142	if(AliHMPIDParam::IsOverTh(q)) new((*pLst[iCh])[iCnt[iCh]++]) AliHMPIDDigit(iPad,(Int_t)q,aTids);} //do not create digit for the very first sdigit
aa8db9d6	143
ae5a42aa	144	iPad=pSdig->Pad(); iCh=AliHMPIDParam::A2C(iPad); //new sdigit comes, reset collectors
d3da6dc4	145	iNdigPad=1;
d3da6dc4	146	aTids[0]=pSdig->GetTrack(0);aTids[1]=aTids[2]=-1;
c5c19d6a	147	q=pSdig->Q();
94b1fbfa	148	if(fgDoNoise) q+=arrNoise[iCh][pSdig->Pc()][pSdig->PadPcX()][pSdig->PadPcY()];
c5c19d6a	149	arrNoise[iCh][pSdig->Pc()][pSdig->PadPcX()][pSdig->PadPcY()]=0;
d3da6dc4	150	}//sdigits loop (sorted)
d3da6dc4	151
23ba1e93	152	if(iCh>=AliHMPIDParam::kMinCh && iCh<=AliHMPIDParam::kMaxCh){
23ba1e93	153	Int_t pc = AliHMPIDParam::A2P(iPad);
cd2a74bf	154	Int_t px = AliHMPIDParam::A2X(iPad);
	155	Int_t py = AliHMPIDParam::A2Y(iPad);
	156	AliHMPIDParam::Instance()->SetThreshold((TMath::Nint(arrSigmaPed[iCh][pc][px][py])*AliHMPIDParam::Nsig()));
	157	if(AliHMPIDParam::IsOverTh(q)) new((*pLst[iCh])[iCnt[iCh]++]) AliHMPIDDigit(iPad,(Int_t)q,aTids);
	158	} //add the last one, in case of empty sdigits list q=-1
aa8db9d6	159
c5c19d6a	160	// add noise pad above threshold with no signal merged...if any
94b1fbfa	161	if(!fgDoNoise) return;
23ba1e93	162
c5c19d6a	163	aTids[0]=aTids[1]=aTids[2]=-1;
23ba1e93	164	for (Int_t iChCurr=AliHMPIDParam::kMinCh;iChCurr<=AliHMPIDParam::kMaxCh;iChCurr++){
ae5a42aa	165	for (Int_t iPc=AliHMPIDParam::kMinPc;iPc<=AliHMPIDParam::kMaxPc;iPc++)
	166	for(Int_t iPx=AliHMPIDParam::kMinPx;iPx<=AliHMPIDParam::kMaxPx;iPx++)
	167	for(Int_t iPy=AliHMPIDParam::kMinPy;iPy<=AliHMPIDParam::kMaxPy;iPy++) {
ec575c20	168	Float_t qNoise = arrNoise[iChCurr][iPc][iPx][iPy];
cd2a74bf	169	AliHMPIDParam::Instance()->SetThreshold((TMath::Nint(arrSigmaPed[iChCurr][iPc][iPx][iPy])*AliHMPIDParam::Nsig()));
ec575c20	170	if(AliHMPIDParam::IsOverTh(qNoise)) new((*pLst[iChCurr])[iCnt[iChCurr]++]) AliHMPIDDigit(AliHMPIDParam::Abs(iChCurr,iPc,iPx,iPy),(Int_t)qNoise,aTids);
c5c19d6a	171	}
23ba1e93	172	}
d3da6dc4	173	}//Sdi2Dig()
d3da6dc4	174	//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++