[u/mrichter/AliRoot.git] / MUON / AliMUONDigitizer.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.                  *
 **************************************************************************/

/*
$Log$
Revision 1.8  2002/02/13 09:03:24  jchudoba
Remove some deletes from dtor, those objects are deleted earlier in Exec() method (where they are created)

Revision 1.7  2001/11/22 11:15:41  jchudoba
Proper deletion of arrays (thanks to Rene Brun)

Revision 1.6  2001/11/02 12:55:45  jchudoba
cleanup of the code, add const to Get methods

Revision 1.4  2001/10/18 14:44:09  jchudoba
Define constant MAXTRACKS for maximum number of tracks associated with 1 digit

Revision 1.3  2001/10/04 20:01:54  jchudoba
changes for TTask implementation, some other small editing

Revision 1.2  2001/07/28 10:46:04  hristov
AliRunDigitizer.h included; typos corrected

Revision 1.1  2001/07/27 15:41:01  jchudoba
merging/digitization classes

*/
#include <TTree.h> 
#include <TObjArray.h>
#include <TFile.h>
#include <TDirectory.h>
#include <iostream.h>

#include "AliMUONDigitizer.h"
#include "AliMUONConstants.h"
#include "AliMUONChamber.h"
#include "AliMUONHitMapA1.h"
#include "AliMUON.h"
#include "AliMUONHit.h"
#include "AliMUONPadHit.h"
#include "AliMUONDigit.h"
#include "AliMUONTransientDigit.h"
#include "AliRun.h"
#include "AliPDG.h"
#include "AliRunDigitizer.h"

ClassImp(AliMUONDigitizer)

//___________________________________________
AliMUONDigitizer::AliMUONDigitizer() :AliDigitizer()
{
// Default ctor - don't use it
  fHits = 0;
  fPadHits = 0;
  fHitMap = 0;
  fTDList = 0;
}

//___________________________________________
AliMUONDigitizer::AliMUONDigitizer(AliRunDigitizer* manager) 
    :AliDigitizer(manager)
{
// ctor which should be used
  fHitMap  = 0;
  fTDList  = 0;
  fHits    = 0;
  fPadHits = 0;
  fDebug   = 0; 
  if (GetDebug()>2) 
    cerr<<"AliMUONDigitizer::AliMUONDigitizer"
	<<"(AliRunDigitizer* manager) was processed"<<endl;
}

//------------------------------------------------------------------------
AliMUONDigitizer::~AliMUONDigitizer()
{
// Destructor
  if (fHits)       delete fHits;
  if (fPadHits)    delete fPadHits;
}

//------------------------------------------------------------------------
Bool_t AliMUONDigitizer::Exists(const AliMUONPadHit *padhit) const
{
  return (fHitMap[fNch]->TestHit(padhit->PadX(),padhit->PadY()));
}

//------------------------------------------------------------------------
void AliMUONDigitizer::Update(AliMUONPadHit *padhit)
{
    AliMUONTransientDigit *pdigit = 
      static_cast<AliMUONTransientDigit*>(
      fHitMap[fNch]->GetHit(padhit->PadX(),padhit->PadY()));

    // update charge
    //
    Int_t iqpad    = padhit->QPad();        // charge per pad
    pdigit->AddSignal(iqpad);
    pdigit->AddPhysicsSignal(iqpad);		

    // update list of tracks
    //
    Int_t track, charge;    
    track = fTrack+fMask;
    if (fSignal) {
      charge = iqpad;
    } else {
      charge = kBgTag;
    }
    pdigit->UpdateTrackList(track,charge);
}

//------------------------------------------------------------------------
void AliMUONDigitizer::CreateNew(AliMUONPadHit *padhit)
{
// Create new AliMUONTransientDigit and add it to the fTDList

  fTDList->AddAtAndExpand(
    new AliMUONTransientDigit(fNch,fDigits),fCounter);
  fHitMap[fNch]->SetHit(padhit->PadX(),padhit->PadY(),fCounter);
  AliMUONTransientDigit* pdigit = 
    (AliMUONTransientDigit*)fTDList->Last();
  // list of tracks
  Int_t track, charge;    
  track = fTrack+fMask;
  if (fSignal) {
    charge = padhit->QPad();
  } else {
    charge = kBgTag;
  }
  pdigit->AddToTrackList(track,charge);
  fCounter++;
}


//------------------------------------------------------------------------
Bool_t AliMUONDigitizer::Init()
{
// Initialization 
    
  fHits     = new TClonesArray("AliMUONHit",1000);
  fPadHits  = new TClonesArray("AliMUONPadHit",1000);
  return kTRUE;
}


//------------------------------------------------------------------------
//void AliMUONDigitizer::Digitize()
void AliMUONDigitizer::Exec(Option_t* option)
{

  TString optionString = option;
  if (optionString.Data() == "deb") {
    cout<<"AliMUONDigitizer::Exec: called with option deb "<<endl;
    fDebug = 3;
  }
  AliMUONChamber*   iChamber;
  AliSegmentation*  segmentation;
  
  if (GetDebug()>2) cerr<<"   AliMUONDigitizer::Digitize() starts"<<endl;
  fTDList = new TObjArray;

  AliMUON *pMUON  = (AliMUON *) gAlice->GetModule("MUON");
  if (!pMUON) {
    cerr<<"AliMUONDigitizer::Digitize Error:"
	<<" module MUON not found in the input file"<<endl;
    return;
  }
  pMUON->MakeBranchInTreeD(fManager->GetTreeD());
  fHitMap= new AliMUONHitMapA1* [AliMUONConstants::NCh()];

  //
  // loop over cathodes
  //

  for (int icat = 0; icat < 2; icat++) { 
    fCounter = 0;
    for (Int_t i = 0; i < AliMUONConstants::NCh(); i++) {
      iChamber = &(pMUON->Chamber(i));
//      if (!(iChamber->Nsec() == 1 && icat == 1)) {
	segmentation = iChamber->SegmentationModel(icat+1);
	fHitMap[i] = new AliMUONHitMapA1(segmentation, fTDList);
//      }
    }


// Loop over files to digitize
    fSignal = kTRUE;
    for (Int_t inputFile=0; inputFile<fManager->GetNinputs();
	 inputFile++) {
// Connect MUON branches

      if (inputFile > 0 ) fSignal = kFALSE;
      TBranch *branchHits = 0;
      TBranch *branchPadHits = 0;
      TTree *treeH = fManager->GetInputTreeH(inputFile);
      if (GetDebug()>2) {
	cerr<<"   inputFile , cathode = "<<inputFile<<" "
	    <<icat<<endl;
	cerr<<"   treeH, fHits "<<treeH<<" "<<fHits<<endl;
      }
      if (treeH && fHits) {
	branchHits = treeH->GetBranch("MUON");
	if (branchHits) {
	  fHits->Clear();
	  branchHits->SetAddress(&fHits);
	}
	else
	  Error("Exec","branch MUON was not found");
      }
      if (GetDebug()>2) cerr<<"   branchHits = "<<branchHits<<endl;

      if (treeH && fPadHits) {
	branchPadHits = treeH->GetBranch("MUONCluster");
	if (branchPadHits) 
	  branchPadHits->SetAddress(&fPadHits);
	else
	  Error("Exec","branch MUONCluster was not found");
      }
      if (GetDebug()>2) cerr<<"   branchPadHits = "<<branchPadHits<<endl;

//
//   Loop over tracks
//

      Int_t ntracks = (Int_t) treeH->GetEntries();

      for (fTrack = 0; fTrack < ntracks; fTrack++) {
	if (GetDebug()>2) cerr<<"   fTrack = "<<fTrack<<endl;
	fHits->Clear();
	fPadHits->Clear();
	branchHits->GetEntry(fTrack);
	branchPadHits->GetEntry(fTrack);
	
//
//   Loop over hits

	AliMUONHit* mHit;
	for(Int_t i = 0; i < fHits->GetEntriesFast(); ++i) {
	  mHit = static_cast<AliMUONHit*>(fHits->At(i));
	  fNch = mHit->Chamber()-1;  // chamber number
	  if (fNch > AliMUONConstants::NCh()-1) {
	    cerr<<"AliMUONDigitizer: ERROR: "
		<<"fNch > AliMUONConstants::NCh()-1, fNch, NCh(): "
		<<fNch<<", "<< AliMUONConstants::NCh()<<endl;
	    return;
	  }
	  iChamber = &(pMUON->Chamber(fNch));
//
// Loop over pad hits
	  for (AliMUONPadHit* mPad =
		 (AliMUONPadHit*)pMUON->FirstPad(mHit,fPadHits);
	       mPad;
	       mPad = (AliMUONPadHit*)pMUON->NextPad(fPadHits))
	  {
	    Int_t cathode  = mPad->Cathode();      // cathode number
	    Int_t ipx      = mPad->PadX();         // pad number on X
	    Int_t ipy      = mPad->PadY();         // pad number on Y
	    Int_t iqpad    = Int_t(mPad->QPad());  // charge per pad
	    if (cathode != (icat+1)) continue;

	    fMask = fManager->GetMask(inputFile);
	    fDigits[0] = ipx;
	    fDigits[1] = ipy;
	    if (!(fHitMap[fNch]->ValidateHit(fDigits[0], fDigits[1]))) continue;
	    fDigits[2] = icat;
	    fDigits[3] = iqpad;
	    if (inputFile == 0) {
	      fDigits[4] = iqpad;
	    } else {
	      fDigits[4] = 0;
	    }
	    if (mHit->Particle() == kMuonPlus ||
		mHit->Particle() == kMuonMinus) {
	      fDigits[5] = (mPad->HitNumber()) + fMask; 
	    } else fDigits[5] = -1;

	    // build the list of fired pads and update the info, 
	    // fDigits is input for Update(mPad)

	    if (!Exists(mPad)) {
	      CreateNew(mPad);
	    } else {
	      Update(mPad);
	    } //  end if Exists(mPad)
	  } //end loop over clusters
	} // hit loop
      } // track loop
    } // end file loop
    if (GetDebug()>2) cerr<<"END OF FILE LOOP"<<endl;

    Int_t tracks[kMAXTRACKS];
    Int_t charges[kMAXTRACKS];
    Int_t nentries = fTDList->GetEntriesFast();
	
    for (Int_t nent = 0; nent < nentries; nent++) {
      AliMUONTransientDigit *address = (AliMUONTransientDigit*)fTDList->At(nent);
      if (address == 0) continue; 
      Int_t ich = address->Chamber();
      Int_t   q = address->Signal(); 
      iChamber = &(pMUON->Chamber(ich));
//
//  Digit Response (noise, threshold, saturation, ...)
      AliMUONResponse * response = iChamber->ResponseModel();
      q = response->DigitResponse(q);
	    
      if (!q) continue;
	    
      fDigits[0] = address->PadX();
      fDigits[1] = address->PadY();
      fDigits[2] = address->Cathode();
      fDigits[3] = q;
      fDigits[4] = address->Physics();
      fDigits[5] = address->Hit();
	    
      Int_t nptracks = address->GetNTracks();

      if (nptracks > kMAXTRACKS) {
	if (GetDebug() >0) {
	  cerr<<"AliMUONDigitizer: nptracks > 10 "<<nptracks;
	  cerr<<"reset to max value "<<kMAXTRACKS<<endl;
	}
	nptracks = kMAXTRACKS;
      }
      if (nptracks > 2 && GetDebug() >2) {
	cerr<<"AliMUONDigitizer: nptracks > 2 "<<nptracks<<endl;
	printf("cat,ich,ix,iy,q %d %d %d %d %d \n",icat,ich,fDigits[0],fDigits[1],q);
      }
      for (Int_t tr = 0; tr < nptracks; tr++) {
	tracks[tr]   = address->GetTrack(tr);
	charges[tr]  = address->GetCharge(tr);
      }      //end loop over list of tracks for one pad
      // Sort list of tracks according to charge
      if (nptracks > 1) {
	SortTracks(tracks,charges,nptracks);
      }
      if (nptracks < kMAXTRACKS ) {
	for (Int_t i = nptracks; i < kMAXTRACKS; i++) {
	  tracks[i]  = 0;
	  charges[i] = 0;
	}
      }
	    
      // fill digits
      pMUON->AddDigits(ich,tracks,charges,fDigits);
    }

    fManager->GetTreeD()->Fill();

    pMUON->ResetDigits();  //
    fTDList->Clear();

	
    for(Int_t ii = 0; ii < AliMUONConstants::NCh(); ++ii) {
      if (fHitMap[ii]) {
	delete fHitMap[ii];
	fHitMap[ii] = 0;
      }
    }
  } //end loop over cathodes
  if (GetDebug()>2) 
    cerr<<"AliMUONDigitizer::Exec: writing the TreeD: "
	<<fManager->GetTreeD()->GetName()<<endl;
  fManager->GetTreeD()->Write(0,TObject::kOverwrite);
  delete [] fHitMap;
  delete fTDList;
    
  if (fHits)    fHits->Delete();
  if (fPadHits) fPadHits->Delete();
}


//------------------------------------------------------------------------
void AliMUONDigitizer::SortTracks(Int_t *tracks,Int_t *charges,Int_t ntr)
{
  //
  // Sort the list of tracks contributing to a given digit
  // Only the 3 most significant tracks are acctually sorted
  //
  
  //
  //  Loop over signals, only 3 times
  //
  
  Int_t qmax;
  Int_t jmax;
  Int_t idx[3] = {-2,-2,-2};
  Int_t jch[3] = {-2,-2,-2};
  Int_t jtr[3] = {-2,-2,-2};
  Int_t i,j,imax;
  
  if (ntr<3) imax=ntr;
  else imax=3;
  for(i=0;i<imax;i++){
    qmax=0;
    jmax=0;
    
    for(j=0;j<ntr;j++){
      
      if((i == 1 && j == idx[i-1]) 
	 ||(i == 2 && (j == idx[i-1] || j == idx[i-2]))) continue;
      
      if(charges[j] > qmax) {
	qmax = charges[j];
	jmax=j;
      }       
    } 
    
    if(qmax > 0) {
      idx[i]=jmax;
      jch[i]=charges[jmax]; 
      jtr[i]=tracks[jmax]; 
    }
    
  } 
  
  for(i=0;i<3;i++){
    if (jtr[i] == -2) {
      charges[i]=0;
      tracks[i]=0;
    } else {
      charges[i]=jch[i];
      tracks[i]=jtr[i];
    }
  }
}
Commit	Line	Data
28752ff4	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	**************************************************************************/
	15
	16	/*
	17	$Log$
4b1670dc	18	Revision 1.8 2002/02/13 09:03:24 jchudoba
	19	Remove some deletes from dtor, those objects are deleted earlier in Exec() method (where they are created)
	20
111ce036	21	Revision 1.7 2001/11/22 11:15:41 jchudoba
	22	Proper deletion of arrays (thanks to Rene Brun)
	23
3ec837bb	24	Revision 1.6 2001/11/02 12:55:45 jchudoba
	25	cleanup of the code, add const to Get methods
	26
8f36c696	27	Revision 1.4 2001/10/18 14:44:09 jchudoba
	28	Define constant MAXTRACKS for maximum number of tracks associated with 1 digit
	29
0e88acc2	30	Revision 1.3 2001/10/04 20:01:54 jchudoba
	31	changes for TTask implementation, some other small editing
	32
b8278504	33	Revision 1.2 2001/07/28 10:46:04 hristov
	34	AliRunDigitizer.h included; typos corrected
	35
53828ce0	36	Revision 1.1 2001/07/27 15:41:01 jchudoba
	37	merging/digitization classes
	38
28752ff4	39	*/
28752ff4	40	#include <TTree.h>
28752ff4	41	#include <TObjArray.h>
	42	#include <TFile.h>
	43	#include <TDirectory.h>
	44	#include <iostream.h>
	45
	46	#include "AliMUONDigitizer.h"
	47	#include "AliMUONConstants.h"
	48	#include "AliMUONChamber.h"
28752ff4	49	#include "AliMUONHitMapA1.h"
	50	#include "AliMUON.h"
	51	#include "AliMUONHit.h"
	52	#include "AliMUONPadHit.h"
	53	#include "AliMUONDigit.h"
	54	#include "AliMUONTransientDigit.h"
	55	#include "AliRun.h"
	56	#include "AliPDG.h"
53828ce0	57	#include "AliRunDigitizer.h"
28752ff4	58
	59	ClassImp(AliMUONDigitizer)
	60
	61	//___________________________________________
	62	AliMUONDigitizer::AliMUONDigitizer() :AliDigitizer()
	63	{
	64	// Default ctor - don't use it
c7955c78	65	fHits = 0;
	66	fPadHits = 0;
	67	fHitMap = 0;
	68	fTDList = 0;
28752ff4	69	}
	70
	71	//___________________________________________
	72	AliMUONDigitizer::AliMUONDigitizer(AliRunDigitizer* manager)
	73	:AliDigitizer(manager)
	74	{
	75	// ctor which should be used
28752ff4	76	fHitMap = 0;
28752ff4	77	fTDList = 0;
28752ff4	78	fHits = 0;
b8278504	79	fPadHits = 0;
b8278504	80	fDebug = 0;
28752ff4	81	if (GetDebug()>2)
	82	cerr<<"AliMUONDigitizer::AliMUONDigitizer"
	83	<<"(AliRunDigitizer* manager) was processed"<<endl;
	84	}
	85
	86	//------------------------------------------------------------------------
	87	AliMUONDigitizer::~AliMUONDigitizer()
	88	{
	89	// Destructor
28752ff4	90	if (fHits) delete fHits;
28752ff4	91	if (fPadHits) delete fPadHits;
28752ff4	92	}
	93
	94	//------------------------------------------------------------------------
c7955c78	95	Bool_t AliMUONDigitizer::Exists(const AliMUONPadHit *padhit) const
28752ff4	96	{
28752ff4	97	return (fHitMap[fNch]->TestHit(padhit->PadX(),padhit->PadY()));
	98	}
	99
	100	//------------------------------------------------------------------------
8f36c696	101	void AliMUONDigitizer::Update(AliMUONPadHit *padhit)
28752ff4	102	{
8f36c696	103	AliMUONTransientDigit *pdigit =
	104	static_cast<AliMUONTransientDigit*>(
	105	fHitMap[fNch]->GetHit(padhit->PadX(),padhit->PadY()));
	106
	107	// update charge
	108	//
	109	Int_t iqpad = padhit->QPad(); // charge per pad
	110	pdigit->AddSignal(iqpad);
	111	pdigit->AddPhysicsSignal(iqpad);
	112
	113	// update list of tracks
	114	//
	115	Int_t track, charge;
	116	track = fTrack+fMask;
	117	if (fSignal) {
	118	charge = iqpad;
28752ff4	119	} else {
8f36c696	120	charge = kBgTag;
28752ff4	121	}
8f36c696	122	pdigit->UpdateTrackList(track,charge);
28752ff4	123	}
	124
	125	//------------------------------------------------------------------------
8f36c696	126	void AliMUONDigitizer::CreateNew(AliMUONPadHit *padhit)
28752ff4	127	{
	128	// Create new AliMUONTransientDigit and add it to the fTDList
	129
28752ff4	130	fTDList->AddAtAndExpand(
28752ff4	131	new AliMUONTransientDigit(fNch,fDigits),fCounter);
8f36c696	132	fHitMap[fNch]->SetHit(padhit->PadX(),padhit->PadY(),fCounter);
8f36c696	133	AliMUONTransientDigit* pdigit =
c7955c78	134	(AliMUONTransientDigit*)fTDList->Last();
28752ff4	135	// list of tracks
8f36c696	136	Int_t track, charge;
	137	track = fTrack+fMask;
	138	if (fSignal) {
	139	charge = padhit->QPad();
	140	} else {
	141	charge = kBgTag;
	142	}
	143	pdigit->AddToTrackList(track,charge);
	144	fCounter++;
28752ff4	145	}
	146
	147
	148	//------------------------------------------------------------------------
	149	Bool_t AliMUONDigitizer::Init()
	150	{
	151	// Initialization
	152
	153	fHits = new TClonesArray("AliMUONHit",1000);
	154	fPadHits = new TClonesArray("AliMUONPadHit",1000);
	155	return kTRUE;
	156	}
	157
	158
	159	//------------------------------------------------------------------------
b8278504	160	//void AliMUONDigitizer::Digitize()
b8278504	161	void AliMUONDigitizer::Exec(Option_t* option)
28752ff4	162	{
28752ff4	163
b8278504	164	TString optionString = option;
	165	if (optionString.Data() == "deb") {
	166	cout<<"AliMUONDigitizer::Exec: called with option deb "<<endl;
	167	fDebug = 3;
	168	}
28752ff4	169	AliMUONChamber* iChamber;
	170	AliSegmentation* segmentation;
	171
	172	if (GetDebug()>2) cerr<<" AliMUONDigitizer::Digitize() starts"<<endl;
	173	fTDList = new TObjArray;
28752ff4	174
	175	AliMUON pMUON = (AliMUON ) gAlice->GetModule("MUON");
	176	if (!pMUON) {
	177	cerr<<"AliMUONDigitizer::Digitize Error:"
	178	<<" module MUON not found in the input file"<<endl;
	179	return;
	180	}
	181	pMUON->MakeBranchInTreeD(fManager->GetTreeD());
8f36c696	182	fHitMap= new AliMUONHitMapA1* [AliMUONConstants::NCh()];
28752ff4	183
	184	//
	185	// loop over cathodes
	186	//
	187
28752ff4	188	for (int icat = 0; icat < 2; icat++) {
28752ff4	189	fCounter = 0;
28752ff4	190	for (Int_t i = 0; i < AliMUONConstants::NCh(); i++) {
	191	iChamber = &(pMUON->Chamber(i));
	192	// if (!(iChamber->Nsec() == 1 && icat == 1)) {
	193	segmentation = iChamber->SegmentationModel(icat+1);
	194	fHitMap[i] = new AliMUONHitMapA1(segmentation, fTDList);
28752ff4	195	// }
	196	}
	197
	198
	199	// Loop over files to digitize
8f36c696	200	fSignal = kTRUE;
28752ff4	201	for (Int_t inputFile=0; inputFile<fManager->GetNinputs();
	202	inputFile++) {
	203	// Connect MUON branches
	204
8f36c696	205	if (inputFile > 0 ) fSignal = kFALSE;
b8278504	206	TBranch *branchHits = 0;
b8278504	207	TBranch *branchPadHits = 0;
28752ff4	208	TTree *treeH = fManager->GetInputTreeH(inputFile);
	209	if (GetDebug()>2) {
	210	cerr<<" inputFile , cathode = "<<inputFile<<" "
	211	<<icat<<endl;
	212	cerr<<" treeH, fHits "<<treeH<<" "<<fHits<<endl;
	213	}
	214	if (treeH && fHits) {
b8278504	215	branchHits = treeH->GetBranch("MUON");
b8278504	216	if (branchHits) {
28752ff4	217	fHits->Clear();
b8278504	218	branchHits->SetAddress(&fHits);
28752ff4	219	}
28752ff4	220	else
c7955c78	221	Error("Exec","branch MUON was not found");
28752ff4	222	}
b8278504	223	if (GetDebug()>2) cerr<<" branchHits = "<<branchHits<<endl;
28752ff4	224
28752ff4	225	if (treeH && fPadHits) {
b8278504	226	branchPadHits = treeH->GetBranch("MUONCluster");
	227	if (branchPadHits)
	228	branchPadHits->SetAddress(&fPadHits);
28752ff4	229	else
c7955c78	230	Error("Exec","branch MUONCluster was not found");
28752ff4	231	}
b8278504	232	if (GetDebug()>2) cerr<<" branchPadHits = "<<branchPadHits<<endl;
28752ff4	233
	234	//
	235	// Loop over tracks
	236	//
	237
	238	Int_t ntracks = (Int_t) treeH->GetEntries();
	239
	240	for (fTrack = 0; fTrack < ntracks; fTrack++) {
	241	if (GetDebug()>2) cerr<<" fTrack = "<<fTrack<<endl;
	242	fHits->Clear();
b8278504	243	fPadHits->Clear();
	244	branchHits->GetEntry(fTrack);
	245	branchPadHits->GetEntry(fTrack);
28752ff4	246
	247	//
	248	// Loop over hits
	249
	250	AliMUONHit* mHit;
c7955c78	251	for(Int_t i = 0; i < fHits->GetEntriesFast(); ++i) {
c7955c78	252	mHit = static_cast<AliMUONHit*>(fHits->At(i));
28752ff4	253	fNch = mHit->Chamber()-1; // chamber number
28752ff4	254	if (fNch > AliMUONConstants::NCh()-1) {
	255	cerr<<"AliMUONDigitizer: ERROR: "
	256	<<"fNch > AliMUONConstants::NCh()-1, fNch, NCh(): "
	257	<<fNch<<", "<< AliMUONConstants::NCh()<<endl;
	258	return;
	259	}
c7955c78	260	iChamber = &(pMUON->Chamber(fNch));
28752ff4	261	//
	262	// Loop over pad hits
	263	for (AliMUONPadHit* mPad =
	264	(AliMUONPadHit*)pMUON->FirstPad(mHit,fPadHits);
	265	mPad;
	266	mPad = (AliMUONPadHit*)pMUON->NextPad(fPadHits))
	267	{
	268	Int_t cathode = mPad->Cathode(); // cathode number
	269	Int_t ipx = mPad->PadX(); // pad number on X
	270	Int_t ipy = mPad->PadY(); // pad number on Y
	271	Int_t iqpad = Int_t(mPad->QPad()); // charge per pad
	272	if (cathode != (icat+1)) continue;
	273
8f36c696	274	fMask = fManager->GetMask(inputFile);
28752ff4	275	fDigits[0] = ipx;
28752ff4	276	fDigits[1] = ipy;
4b1670dc	277	if (!(fHitMap[fNch]->ValidateHit(fDigits[0], fDigits[1]))) continue;
28752ff4	278	fDigits[2] = icat;
	279	fDigits[3] = iqpad;
	280	if (inputFile == 0) {
	281	fDigits[4] = iqpad;
	282	} else {
	283	fDigits[4] = 0;
	284	}
	285	if (mHit->Particle() == kMuonPlus \|\|
	286	mHit->Particle() == kMuonMinus) {
8f36c696	287	fDigits[5] = (mPad->HitNumber()) + fMask;
28752ff4	288	} else fDigits[5] = -1;
	289
	290	// build the list of fired pads and update the info,
	291	// fDigits is input for Update(mPad)
	292
	293	if (!Exists(mPad)) {
	294	CreateNew(mPad);
	295	} else {
	296	Update(mPad);
	297	} // end if Exists(mPad)
	298	} //end loop over clusters
	299	} // hit loop
	300	} // track loop
	301	} // end file loop
	302	if (GetDebug()>2) cerr<<"END OF FILE LOOP"<<endl;
	303
8f36c696	304	Int_t tracks[kMAXTRACKS];
8f36c696	305	Int_t charges[kMAXTRACKS];
28752ff4	306	Int_t nentries = fTDList->GetEntriesFast();
	307
	308	for (Int_t nent = 0; nent < nentries; nent++) {
	309	AliMUONTransientDigit address = (AliMUONTransientDigit)fTDList->At(nent);
	310	if (address == 0) continue;
	311	Int_t ich = address->Chamber();
	312	Int_t q = address->Signal();
	313	iChamber = &(pMUON->Chamber(ich));
	314	//
	315	// Digit Response (noise, threshold, saturation, ...)
	316	AliMUONResponse * response = iChamber->ResponseModel();
	317	q = response->DigitResponse(q);
	318
	319	if (!q) continue;
	320
	321	fDigits[0] = address->PadX();
	322	fDigits[1] = address->PadY();
	323	fDigits[2] = address->Cathode();
	324	fDigits[3] = q;
	325	fDigits[4] = address->Physics();
	326	fDigits[5] = address->Hit();
	327
8f36c696	328	Int_t nptracks = address->GetNTracks();
28752ff4	329
8f36c696	330	if (nptracks > kMAXTRACKS) {
0e88acc2	331	if (GetDebug() >0) {
0e88acc2	332	cerr<<"AliMUONDigitizer: nptracks > 10 "<<nptracks;
8f36c696	333	cerr<<"reset to max value "<<kMAXTRACKS<<endl;
0e88acc2	334	}
8f36c696	335	nptracks = kMAXTRACKS;
28752ff4	336	}
28752ff4	337	if (nptracks > 2 && GetDebug() >2) {
0e88acc2	338	cerr<<"AliMUONDigitizer: nptracks > 2 "<<nptracks<<endl;
28752ff4	339	printf("cat,ich,ix,iy,q %d %d %d %d %d \n",icat,ich,fDigits[0],fDigits[1],q);
	340	}
	341	for (Int_t tr = 0; tr < nptracks; tr++) {
8f36c696	342	tracks[tr] = address->GetTrack(tr);
8f36c696	343	charges[tr] = address->GetCharge(tr);
28752ff4	344	} //end loop over list of tracks for one pad
	345	// Sort list of tracks according to charge
	346	if (nptracks > 1) {
	347	SortTracks(tracks,charges,nptracks);
	348	}
8f36c696	349	if (nptracks < kMAXTRACKS ) {
8f36c696	350	for (Int_t i = nptracks; i < kMAXTRACKS; i++) {
28752ff4	351	tracks[i] = 0;
	352	charges[i] = 0;
	353	}
	354	}
	355
	356	// fill digits
	357	pMUON->AddDigits(ich,tracks,charges,fDigits);
28752ff4	358	}
	359
	360	fManager->GetTreeD()->Fill();
	361
	362	pMUON->ResetDigits(); //
	363	fTDList->Clear();
	364
	365
	366	for(Int_t ii = 0; ii < AliMUONConstants::NCh(); ++ii) {
	367	if (fHitMap[ii]) {
	368	delete fHitMap[ii];
	369	fHitMap[ii] = 0;
	370	}
	371	}
28752ff4	372	} //end loop over cathodes
28752ff4	373	if (GetDebug()>2)
b8278504	374	cerr<<"AliMUONDigitizer::Exec: writing the TreeD: "
28752ff4	375	<<fManager->GetTreeD()->GetName()<<endl;
b8278504	376	fManager->GetTreeD()->Write(0,TObject::kOverwrite);
28752ff4	377	delete [] fHitMap;
	378	delete fTDList;
	379
28752ff4	380	if (fHits) fHits->Delete();
28752ff4	381	if (fPadHits) fPadHits->Delete();
28752ff4	382	}
	383
	384
b8278504	385	//------------------------------------------------------------------------
28752ff4	386	void AliMUONDigitizer::SortTracks(Int_t tracks,Int_t charges,Int_t ntr)
	387	{
	388	//
	389	// Sort the list of tracks contributing to a given digit
	390	// Only the 3 most significant tracks are acctually sorted
	391	//
	392
	393	//
	394	// Loop over signals, only 3 times
	395	//
	396
	397	Int_t qmax;
	398	Int_t jmax;
	399	Int_t idx[3] = {-2,-2,-2};
	400	Int_t jch[3] = {-2,-2,-2};
	401	Int_t jtr[3] = {-2,-2,-2};
	402	Int_t i,j,imax;
	403
	404	if (ntr<3) imax=ntr;
	405	else imax=3;
	406	for(i=0;i<imax;i++){
	407	qmax=0;
	408	jmax=0;
	409
	410	for(j=0;j<ntr;j++){
	411
	412	if((i == 1 && j == idx[i-1])
	413	\|\|(i == 2 && (j == idx[i-1] \|\| j == idx[i-2]))) continue;
	414
	415	if(charges[j] > qmax) {
	416	qmax = charges[j];
	417	jmax=j;
	418	}
	419	}
	420
	421	if(qmax > 0) {
	422	idx[i]=jmax;
	423	jch[i]=charges[jmax];
	424	jtr[i]=tracks[jmax];
	425	}
	426
	427	}
	428
	429	for(i=0;i<3;i++){
	430	if (jtr[i] == -2) {
	431	charges[i]=0;
	432	tracks[i]=0;
	433	} else {
	434	charges[i]=jch[i];
	435	tracks[i]=jtr[i];
	436	}
	437	}
	438	}