[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 1.6  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;
  if (fHitMap)     delete [] fHitMap;
  if (fTDList)     delete fTDList;
}

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