[u/mrichter/AliRoot.git] / MUON / AliMUONMerger.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 1.5  2001/10/31 16:35:07  jchudoba
some functionality move to AliMUONTransientDigit class

Revision 1.4  2001/03/20 13:36:11  egangler
TFile memory leak and "too many files open" problem solved (?):
the backgroud file is open only once forever, and not once for each event.

Revision 1.3  2001/03/05 23:57:44  morsch
Writing of digit tree moved to macro.

Revision 1.2  2001/03/05 08:40:25  morsch
Method SortTracks(..) imported from AliMUON.

Revision 1.1  2001/02/02 14:11:53  morsch
AliMUONMerger prototype to be called by the merge manager.

*/

#include <TTree.h> 
#include <TObjArray.h>
#include <TFile.h>
#include <TDirectory.h>

#include "AliMUONMerger.h"
#include "AliMUONConstants.h"
#include "AliMUONChamber.h"
#include "AliHitMap.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"

ClassImp(AliMUONMerger)

//___________________________________________
AliMUONMerger::AliMUONMerger()
{
// Default constructor    
    fEvNrSig = 0;
    fEvNrBgr = 0;
    fMerge   = kDigitize;
    fFnBgr   = 0;
    fHitMap  = 0;
    fList    = 0;
    fTrH1    = 0;
    fHitsBgr = 0;
    fPadHitsBgr = 0;
    fHitMap     = 0;
    fList       = 0;
    fBgrFile    = 0;
}

//------------------------------------------------------------------------
AliMUONMerger::~AliMUONMerger()
{
// Destructor
    if (fTrH1)       delete fTrH1;
    if (fHitsBgr)    delete fHitsBgr;
    if (fPadHitsBgr) delete fPadHitsBgr;
    if (fHitMap)     delete [] fHitMap;
    if (fList)       delete fList;
    if (fBgrFile)    delete fBgrFile;
}

//------------------------------------------------------------------------
Bool_t AliMUONMerger::Exists(const AliMUONPadHit *padhit) const
{
// test if the given padhit was already fired
    return (fHitMap[fNch]->TestHit(padhit->PadX(),padhit->PadY()));
}

//------------------------------------------------------------------------
void AliMUONMerger::Update(AliMUONPadHit *padhit)
{
// add new contribution to the fired 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;    
    if (fSignal) {
      track = fTrack;
      charge = iqpad;
    } else {
      track = kBgTag;
      charge = kBgTag;
    }
    pdigit->UpdateTrackList(track,charge);
}

//------------------------------------------------------------------------
void AliMUONMerger::CreateNew(AliMUONPadHit *padhit)
{
// add new transient digit to the list, update hit map
    fList->AddAtAndExpand(
	new AliMUONTransientDigit(fNch,fDigits),fCounter);
    fHitMap[fNch]->SetHit(padhit->PadX(),padhit->PadY(),fCounter);
    AliMUONTransientDigit* pdigit = 
      static_cast<AliMUONTransientDigit*>(fList->Last());
    // list of tracks
    Int_t track, charge;
    if (fSignal) {
      track = fTrack;
      charge = padhit->QPad();
    } else {
      track = kBgTag;
      charge = kBgTag;
    }
    pdigit->AddToTrackList(track,charge);
    fCounter++;
}


//------------------------------------------------------------------------
void AliMUONMerger::Init()
{
// Initialisation
    // open only once the background file !!
    if (fMerge && !fBgrFile) fBgrFile = InitBgr();
}


//------------------------------------------------------------------------
TFile* AliMUONMerger::InitBgr()
{
// Initialise background event
    TFile *file = new TFile(fFnBgr);
// add error checking later
    printf("\n AliMUONMerger has opened %s file with background event \n", fFnBgr);
    fHitsBgr     = new TClonesArray("AliMUONHit",1000);
    fPadHitsBgr  = new TClonesArray("AliMUONPadHit",1000);
    return file;
}

//------------------------------------------------------------------------
void AliMUONMerger::Digitise()
{

    // keep galice.root for signal and name differently the file for 
    // background when add! otherwise the track info for signal will be lost !
  
    AliMUONChamber*   iChamber;
    AliSegmentation*  segmentation;

    fList = new TObjArray;

    AliMUON *pMUON  = (AliMUON *) gAlice->GetModule("MUON");
    fHitMap= new AliHitMap* [AliMUONConstants::NCh()];
    if (fMerge ) {
	fBgrFile->cd();
        //
	// Get Hits Tree header from file
	//if(fHitsBgr) fHitsBgr->Clear();     // Useless because line 327
	//if(fPadHitsBgr) fPadHitsBgr->Clear(); // Useless because line 328
	if(fTrH1) delete fTrH1;
	fTrH1 = 0;
	
	char treeName[20];
	sprintf(treeName,"TreeH%d",fEvNrBgr);
	fTrH1 = (TTree*)gDirectory->Get(treeName);
	if (!fTrH1) {
	    printf("ERROR: cannot find Hits Tree for event:%d\n",fEvNrBgr);
	}
        //
	// Set branch addresses
	TBranch *branch;
	char branchname[20];
	sprintf(branchname,"%s",pMUON->GetName());
	if (fTrH1 && fHitsBgr) {
	    branch = fTrH1->GetBranch(branchname);
	    if (branch) branch->SetAddress(&fHitsBgr);
	}
	if (fTrH1 && fPadHitsBgr) {
	    branch = fTrH1->GetBranch("MUONCluster");
	    if (branch) branch->SetAddress(&fPadHitsBgr);
	}
    }
    //
    // loop over cathodes
    //
    fSignal = kTRUE;
    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) {
		continue;
	    } else {
		segmentation = iChamber->SegmentationModel(icat+1);
	    }
	    fHitMap[i] = new AliMUONHitMapA1(segmentation, fList);
	}

//
//   Loop over tracks
//

	TTree *treeH  = gAlice->TreeH();
	Int_t ntracks = (Int_t) treeH->GetEntries();

	for (fTrack = 0; fTrack < ntracks; fTrack++) {
	    gAlice->ResetHits();
	    treeH->GetEvent(fTrack);
//
//   Loop over hits
	    for(AliMUONHit* mHit = (AliMUONHit*)pMUON->FirstHit(-1); 
		mHit;
		mHit = (AliMUONHit*)pMUON->NextHit()) 
	    {
		fNch = mHit->Chamber()-1;  // chamber number
		if (fNch > AliMUONConstants::NCh()-1) continue;
		iChamber = &(pMUON->Chamber(fNch));
		
//
// Loop over pad hits
		for (AliMUONPadHit* mPad =
			 (AliMUONPadHit*)pMUON->FirstPad(mHit,pMUON->PadHits());
		     mPad;
		     mPad = (AliMUONPadHit*)pMUON->NextPad(pMUON->PadHits()))
		{
		    Int_t cathode  = mPad->Cathode();      // cathode number
		    if (cathode != (icat+1)) continue;
		    Int_t iqpad    = Int_t(mPad->QPad());  // charge per pad
//		    segmentation = iChamber->SegmentationModel(cathode);
		    fDigits[0] = mPad->PadX();  
		    fDigits[1] = mPad->PadY();
		    fDigits[2] = icat;
		    fDigits[3] = iqpad;
		    fDigits[4] = iqpad;
		    if (mHit->Particle() == kMuonPlus ||
			mHit->Particle() == kMuonMinus) {
			fDigits[5] = mPad->HitNumber();
		    } else fDigits[5] = -1;

		    // build the list of fired pads and update the info

		    if (!Exists(mPad)) {
			CreateNew(mPad);
		    } else {
			Update(mPad);
		    } //  end if pdigit
		} //end loop over clusters
	    } // hit loop
	} // track loop

	// open the file with background
       
	if (fMerge) {
            fSignal = kFALSE;
	    ntracks = (Int_t)fTrH1->GetEntries();
//
//   Loop over tracks
//
	    for (fTrack = 0; fTrack < ntracks; fTrack++) {

		if (fHitsBgr)       fHitsBgr->Clear();
		if (fPadHitsBgr)    fPadHitsBgr->Clear();

		fTrH1->GetEvent(fTrack);
//
//   Loop over hits
		AliMUONHit* mHit;
		for(Int_t i = 0; i < fHitsBgr->GetEntriesFast(); ++i) 
		{	
		    mHit   = (AliMUONHit*) (*fHitsBgr)[i];
		    fNch   = mHit->Chamber()-1;  // chamber number
		    iChamber = &(pMUON->Chamber(fNch));
//
// Loop over pad hits
		    for (AliMUONPadHit* mPad =
			     (AliMUONPadHit*)pMUON->FirstPad(mHit,fPadHitsBgr);
			 mPad;
			 mPad = (AliMUONPadHit*)pMUON->NextPad(fPadHitsBgr))
		    {
			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;
			fDigits[0] = ipx;
			fDigits[1] = ipy;
			fDigits[2] = icat;
			fDigits[3] = iqpad;
			fDigits[4] = 0;
			fDigits[5] = -1;
			
			// build the list of fired pads and update the info
			if (!Exists(mPad)) {
			    CreateNew(mPad);
			} else {
			    Update(mPad);
			} //  end if !Exists
		    } //end loop over clusters
		} // hit loop
	    } // track loop

	    TTree *treeK = gAlice->TreeK();
            TFile *file = NULL;
	    
	    if (treeK) file = treeK->GetCurrentFile();
	    file->cd();
	} // if fMerge

	Int_t tracks[kMAXTRACKS];
	Int_t charges[kMAXTRACKS];
	Int_t nentries = fList->GetEntriesFast();
	
	for (Int_t nent = 0; nent < nentries; nent++) {
	    AliMUONTransientDigit *address = (AliMUONTransientDigit*)fList->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) {
		printf("\n Attention - nptracks > kMAXTRACKS %d \n", nptracks);
		nptracks = kMAXTRACKS;
	    }
	    if (nptracks > 2) {
		printf("Attention - nptracks > 2  %d \n",nptracks);
		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);
	}
	gAlice->TreeD()->Fill();
	pMUON->ResetDigits();
	fList->Delete();

	
	for(Int_t ii = 0; ii < AliMUONConstants::NCh(); ++ii) {
	    if (fHitMap[ii]) {
		delete fHitMap[ii];
		fHitMap[ii] = 0;
	    }
	}
    } //end loop over cathodes
    delete [] fHitMap;
    delete fList;
    
//  no need to delete ... and it makes a crash also
//    if (fHitsBgr)    fHitsBgr->Delete();
//    if (fPadHitsBgr) fPadHitsBgr->Delete();
    // gObjectTable->Print();
}


void AliMUONMerger::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
66f93042	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
c7955c78	21	Revision 1.5 2001/10/31 16:35:07 jchudoba
	22	some functionality move to AliMUONTransientDigit class
	23
8f36c696	24	Revision 1.4 2001/03/20 13:36:11 egangler
	25	TFile memory leak and "too many files open" problem solved (?):
	26	the backgroud file is open only once forever, and not once for each event.
	27
77ccf5b0	28	Revision 1.3 2001/03/05 23:57:44 morsch
	29	Writing of digit tree moved to macro.
	30
7868442b	31	Revision 1.2 2001/03/05 08:40:25 morsch
	32	Method SortTracks(..) imported from AliMUON.
	33
a3f472a9	34	Revision 1.1 2001/02/02 14:11:53 morsch
	35	AliMUONMerger prototype to be called by the merge manager.
	36
66f93042	37	*/
	38
	39	#include <TTree.h>
66f93042	40	#include <TObjArray.h>
	41	#include <TFile.h>
	42	#include <TDirectory.h>
	43
66f93042	44	#include "AliMUONMerger.h"
	45	#include "AliMUONConstants.h"
	46	#include "AliMUONChamber.h"
	47	#include "AliHitMap.h"
	48	#include "AliMUONHitMapA1.h"
	49	#include "AliMUON.h"
	50	#include "AliMUONHit.h"
	51	#include "AliMUONPadHit.h"
	52	#include "AliMUONDigit.h"
	53	#include "AliMUONTransientDigit.h"
	54	#include "AliRun.h"
	55	#include "AliPDG.h"
	56
	57	ClassImp(AliMUONMerger)
	58
	59	//___________________________________________
	60	AliMUONMerger::AliMUONMerger()
	61	{
	62	// Default constructor
	63	fEvNrSig = 0;
	64	fEvNrBgr = 0;
	65	fMerge = kDigitize;
	66	fFnBgr = 0;
	67	fHitMap = 0;
	68	fList = 0;
	69	fTrH1 = 0;
	70	fHitsBgr = 0;
	71	fPadHitsBgr = 0;
	72	fHitMap = 0;
	73	fList = 0;
77ccf5b0	74	fBgrFile = 0;
66f93042	75	}
	76
	77	//------------------------------------------------------------------------
	78	AliMUONMerger::~AliMUONMerger()
	79	{
	80	// Destructor
	81	if (fTrH1) delete fTrH1;
	82	if (fHitsBgr) delete fHitsBgr;
	83	if (fPadHitsBgr) delete fPadHitsBgr;
3ec837bb	84	if (fHitMap) delete [] fHitMap;
66f93042	85	if (fList) delete fList;
77ccf5b0	86	if (fBgrFile) delete fBgrFile;
66f93042	87	}
	88
	89	//------------------------------------------------------------------------
c7955c78	90	Bool_t AliMUONMerger::Exists(const AliMUONPadHit *padhit) const
66f93042	91	{
3ec837bb	92	// test if the given padhit was already fired
66f93042	93	return (fHitMap[fNch]->TestHit(padhit->PadX(),padhit->PadY()));
	94	}
	95
	96	//------------------------------------------------------------------------
8f36c696	97	void AliMUONMerger::Update(AliMUONPadHit *padhit)
66f93042	98	{
3ec837bb	99	// add new contribution to the fired padhit
8f36c696	100	AliMUONTransientDigit *pdigit =
	101	static_cast<AliMUONTransientDigit*>(
	102	fHitMap[fNch]->GetHit(padhit->PadX(),padhit->PadY()));
66f93042	103
66f93042	104	// update charge
66f93042	105	//
8f36c696	106	Int_t iqpad = padhit->QPad(); // charge per pad
	107	pdigit->AddSignal(iqpad);
	108	pdigit->AddPhysicsSignal(iqpad);
	109
66f93042	110	// update list of tracks
66f93042	111	//
8f36c696	112	Int_t track, charge;
	113	if (fSignal) {
	114	track = fTrack;
	115	charge = iqpad;
66f93042	116	} else {
8f36c696	117	track = kBgTag;
8f36c696	118	charge = kBgTag;
66f93042	119	}
8f36c696	120	pdigit->UpdateTrackList(track,charge);
66f93042	121	}
	122
	123	//------------------------------------------------------------------------
8f36c696	124	void AliMUONMerger::CreateNew(AliMUONPadHit *padhit)
66f93042	125	{
3ec837bb	126	// add new transient digit to the list, update hit map
66f93042	127	fList->AddAtAndExpand(
66f93042	128	new AliMUONTransientDigit(fNch,fDigits),fCounter);
8f36c696	129	fHitMap[fNch]->SetHit(padhit->PadX(),padhit->PadY(),fCounter);
8f36c696	130	AliMUONTransientDigit* pdigit =
c7955c78	131	static_cast<AliMUONTransientDigit*>(fList->Last());
66f93042	132	// list of tracks
8f36c696	133	Int_t track, charge;
	134	if (fSignal) {
	135	track = fTrack;
	136	charge = padhit->QPad();
	137	} else {
	138	track = kBgTag;
	139	charge = kBgTag;
	140	}
	141	pdigit->AddToTrackList(track,charge);
	142	fCounter++;
66f93042	143	}
	144
	145
	146	//------------------------------------------------------------------------
	147	void AliMUONMerger::Init()
	148	{
	149	// Initialisation
77ccf5b0	150	// open only once the background file !!
77ccf5b0	151	if (fMerge && !fBgrFile) fBgrFile = InitBgr();
66f93042	152	}
	153
	154
	155
	156	//------------------------------------------------------------------------
	157	TFile* AliMUONMerger::InitBgr()
	158	{
	159	// Initialise background event
	160	TFile *file = new TFile(fFnBgr);
	161	// add error checking later
	162	printf("\n AliMUONMerger has opened %s file with background event \n", fFnBgr);
	163	fHitsBgr = new TClonesArray("AliMUONHit",1000);
	164	fPadHitsBgr = new TClonesArray("AliMUONPadHit",1000);
	165	return file;
	166	}
	167
	168	//------------------------------------------------------------------------
	169	void AliMUONMerger::Digitise()
	170	{
	171
	172	// keep galice.root for signal and name differently the file for
	173	// background when add! otherwise the track info for signal will be lost !
	174
	175	AliMUONChamber* iChamber;
	176	AliSegmentation* segmentation;
	177
	178	fList = new TObjArray;
66f93042	179
	180	AliMUON pMUON = (AliMUON ) gAlice->GetModule("MUON");
	181	fHitMap= new AliHitMap* [AliMUONConstants::NCh()];
66f93042	182	if (fMerge ) {
66f93042	183	fBgrFile->cd();
66f93042	184	//
66f93042	185	// Get Hits Tree header from file
77ccf5b0	186	//if(fHitsBgr) fHitsBgr->Clear(); // Useless because line 327
77ccf5b0	187	//if(fPadHitsBgr) fPadHitsBgr->Clear(); // Useless because line 328
66f93042	188	if(fTrH1) delete fTrH1;
	189	fTrH1 = 0;
	190
	191	char treeName[20];
	192	sprintf(treeName,"TreeH%d",fEvNrBgr);
	193	fTrH1 = (TTree*)gDirectory->Get(treeName);
	194	if (!fTrH1) {
	195	printf("ERROR: cannot find Hits Tree for event:%d\n",fEvNrBgr);
	196	}
	197	//
	198	// Set branch addresses
	199	TBranch *branch;
	200	char branchname[20];
	201	sprintf(branchname,"%s",pMUON->GetName());
	202	if (fTrH1 && fHitsBgr) {
	203	branch = fTrH1->GetBranch(branchname);
	204	if (branch) branch->SetAddress(&fHitsBgr);
	205	}
	206	if (fTrH1 && fPadHitsBgr) {
	207	branch = fTrH1->GetBranch("MUONCluster");
	208	if (branch) branch->SetAddress(&fPadHitsBgr);
	209	}
	210	}
	211	//
	212	// loop over cathodes
	213	//
8f36c696	214	fSignal = kTRUE;
66f93042	215	for (int icat = 0; icat < 2; icat++) {
66f93042	216	fCounter = 0;
66f93042	217	for (Int_t i = 0; i < AliMUONConstants::NCh(); i++) {
	218	iChamber = &(pMUON->Chamber(i));
	219	if (iChamber->Nsec() == 1 && icat == 1) {
	220	continue;
	221	} else {
	222	segmentation = iChamber->SegmentationModel(icat+1);
	223	}
	224	fHitMap[i] = new AliMUONHitMapA1(segmentation, fList);
66f93042	225	}
	226
	227	//
	228	// Loop over tracks
	229	//
	230
	231	TTree *treeH = gAlice->TreeH();
	232	Int_t ntracks = (Int_t) treeH->GetEntries();
66f93042	233
	234	for (fTrack = 0; fTrack < ntracks; fTrack++) {
	235	gAlice->ResetHits();
	236	treeH->GetEvent(fTrack);
	237	//
	238	// Loop over hits
	239	for(AliMUONHit* mHit = (AliMUONHit*)pMUON->FirstHit(-1);
	240	mHit;
	241	mHit = (AliMUONHit*)pMUON->NextHit())
	242	{
	243	fNch = mHit->Chamber()-1; // chamber number
	244	if (fNch > AliMUONConstants::NCh()-1) continue;
	245	iChamber = &(pMUON->Chamber(fNch));
66f93042	246
	247	//
	248	// Loop over pad hits
	249	for (AliMUONPadHit* mPad =
	250	(AliMUONPadHit*)pMUON->FirstPad(mHit,pMUON->PadHits());
	251	mPad;
	252	mPad = (AliMUONPadHit*)pMUON->NextPad(pMUON->PadHits()))
	253	{
	254	Int_t cathode = mPad->Cathode(); // cathode number
66f93042	255	if (cathode != (icat+1)) continue;
c7955c78	256	Int_t iqpad = Int_t(mPad->QPad()); // charge per pad
	257	// segmentation = iChamber->SegmentationModel(cathode);
	258	fDigits[0] = mPad->PadX();
	259	fDigits[1] = mPad->PadY();
66f93042	260	fDigits[2] = icat;
	261	fDigits[3] = iqpad;
	262	fDigits[4] = iqpad;
	263	if (mHit->Particle() == kMuonPlus \|\|
	264	mHit->Particle() == kMuonMinus) {
	265	fDigits[5] = mPad->HitNumber();
	266	} else fDigits[5] = -1;
	267
	268	// build the list of fired pads and update the info
	269
	270	if (!Exists(mPad)) {
	271	CreateNew(mPad);
	272	} else {
	273	Update(mPad);
	274	} // end if pdigit
	275	} //end loop over clusters
	276	} // hit loop
	277	} // track loop
	278
	279	// open the file with background
	280
	281	if (fMerge) {
8f36c696	282	fSignal = kFALSE;
66f93042	283	ntracks = (Int_t)fTrH1->GetEntries();
	284	//
	285	// Loop over tracks
	286	//
	287	for (fTrack = 0; fTrack < ntracks; fTrack++) {
	288
	289	if (fHitsBgr) fHitsBgr->Clear();
	290	if (fPadHitsBgr) fPadHitsBgr->Clear();
	291
	292	fTrH1->GetEvent(fTrack);
	293	//
	294	// Loop over hits
	295	AliMUONHit* mHit;
c7955c78	296	for(Int_t i = 0; i < fHitsBgr->GetEntriesFast(); ++i)
66f93042	297	{
	298	mHit = (AliMUONHit) (fHitsBgr)[i];
	299	fNch = mHit->Chamber()-1; // chamber number
	300	iChamber = &(pMUON->Chamber(fNch));
66f93042	301	//
	302	// Loop over pad hits
	303	for (AliMUONPadHit* mPad =
	304	(AliMUONPadHit*)pMUON->FirstPad(mHit,fPadHitsBgr);
	305	mPad;
	306	mPad = (AliMUONPadHit*)pMUON->NextPad(fPadHitsBgr))
	307	{
	308	Int_t cathode = mPad->Cathode(); // cathode number
	309	Int_t ipx = mPad->PadX(); // pad number on X
	310	Int_t ipy = mPad->PadY(); // pad number on Y
	311	Int_t iqpad = Int_t(mPad->QPad()); // charge per pad
	312
	313	if (cathode != (icat+1)) continue;
66f93042	314	fDigits[0] = ipx;
	315	fDigits[1] = ipy;
	316	fDigits[2] = icat;
	317	fDigits[3] = iqpad;
	318	fDigits[4] = 0;
	319	fDigits[5] = -1;
	320
	321	// build the list of fired pads and update the info
	322	if (!Exists(mPad)) {
	323	CreateNew(mPad);
	324	} else {
	325	Update(mPad);
	326	} // end if !Exists
	327	} //end loop over clusters
	328	} // hit loop
	329	} // track loop
	330
c7955c78	331	TTree *treeK = gAlice->TreeK();
66f93042	332	TFile *file = NULL;
66f93042	333
c7955c78	334	if (treeK) file = treeK->GetCurrentFile();
66f93042	335	file->cd();
66f93042	336	} // if fMerge
66f93042	337
8f36c696	338	Int_t tracks[kMAXTRACKS];
8f36c696	339	Int_t charges[kMAXTRACKS];
66f93042	340	Int_t nentries = fList->GetEntriesFast();
	341
	342	for (Int_t nent = 0; nent < nentries; nent++) {
	343	AliMUONTransientDigit address = (AliMUONTransientDigit)fList->At(nent);
	344	if (address == 0) continue;
	345	Int_t ich = address->Chamber();
	346	Int_t q = address->Signal();
	347	iChamber = &(pMUON->Chamber(ich));
	348	//
	349	// Digit Response (noise, threshold, saturation, ...)
	350	AliMUONResponse * response = iChamber->ResponseModel();
	351	q = response->DigitResponse(q);
	352
	353	if (!q) continue;
	354
	355	fDigits[0] = address->PadX();
	356	fDigits[1] = address->PadY();
	357	fDigits[2] = address->Cathode();
	358	fDigits[3] = q;
	359	fDigits[4] = address->Physics();
	360	fDigits[5] = address->Hit();
	361
8f36c696	362	Int_t nptracks = address->GetNTracks();
66f93042	363
8f36c696	364	if (nptracks > kMAXTRACKS) {
	365	printf("\n Attention - nptracks > kMAXTRACKS %d \n", nptracks);
	366	nptracks = kMAXTRACKS;
66f93042	367	}
	368	if (nptracks > 2) {
	369	printf("Attention - nptracks > 2 %d \n",nptracks);
	370	printf("cat,ich,ix,iy,q %d %d %d %d %d \n",icat,ich,fDigits[0],fDigits[1],q);
	371	}
	372	for (Int_t tr = 0; tr < nptracks; tr++) {
8f36c696	373	tracks[tr] = address->GetTrack(tr);
8f36c696	374	charges[tr] = address->GetCharge(tr);
66f93042	375	} //end loop over list of tracks for one pad
	376	// Sort list of tracks according to charge
	377	if (nptracks > 1) {
a3f472a9	378	SortTracks(tracks,charges,nptracks);
66f93042	379	}
8f36c696	380	if (nptracks < kMAXTRACKS ) {
8f36c696	381	for (Int_t i = nptracks; i < kMAXTRACKS; i++) {
66f93042	382	tracks[i] = 0;
	383	charges[i] = 0;
	384	}
	385	}
	386
	387	// fill digits
	388	pMUON->AddDigits(ich,tracks,charges,fDigits);
66f93042	389	}
	390	gAlice->TreeD()->Fill();
	391	pMUON->ResetDigits();
	392	fList->Delete();
	393
	394
	395	for(Int_t ii = 0; ii < AliMUONConstants::NCh(); ++ii) {
	396	if (fHitMap[ii]) {
c7955c78	397	delete fHitMap[ii];
66f93042	398	fHitMap[ii] = 0;
	399	}
	400	}
66f93042	401	} //end loop over cathodes
66f93042	402	delete [] fHitMap;
66f93042	403	delete fList;
66f93042	404
77ccf5b0	405	// no need to delete ... and it makes a crash also
	406	// if (fHitsBgr) fHitsBgr->Delete();
	407	// if (fPadHitsBgr) fPadHitsBgr->Delete();
66f93042	408	// gObjectTable->Print();
	409	}
	410
	411
	412
a3f472a9	413	void AliMUONMerger::SortTracks(Int_t tracks,Int_t charges,Int_t ntr)
	414	{
	415	//
	416	// Sort the list of tracks contributing to a given digit
	417	// Only the 3 most significant tracks are acctually sorted
	418	//
	419
	420	//
	421	// Loop over signals, only 3 times
	422	//
	423
	424	Int_t qmax;
	425	Int_t jmax;
	426	Int_t idx[3] = {-2,-2,-2};
	427	Int_t jch[3] = {-2,-2,-2};
	428	Int_t jtr[3] = {-2,-2,-2};
	429	Int_t i,j,imax;
	430
	431	if (ntr<3) imax=ntr;
	432	else imax=3;
	433	for(i=0;i<imax;i++){
	434	qmax=0;
	435	jmax=0;
	436
	437	for(j=0;j<ntr;j++){
	438
	439	if((i == 1 && j == idx[i-1])
	440	\|\|(i == 2 && (j == idx[i-1] \|\| j == idx[i-2]))) continue;
	441
	442	if(charges[j] > qmax) {
	443	qmax = charges[j];
	444	jmax=j;
	445	}
	446	}
	447
	448	if(qmax > 0) {
	449	idx[i]=jmax;
	450	jch[i]=charges[jmax];
	451	jtr[i]=tracks[jmax];
	452	}
	453
	454	}
	455
	456	for(i=0;i<3;i++){
	457	if (jtr[i] == -2) {
	458	charges[i]=0;
	459	tracks[i]=0;
	460	} else {
	461	charges[i]=jch[i];
	462	tracks[i]=jtr[i];
	463	}
	464	}
	465	}
	466
66f93042	467
66f93042	468