[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.                  *
 **************************************************************************/

/* $Id$ */

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

#include "AliHitMap.h"
#include "AliMUON.h"
#include "AliMUONChamber.h"
#include "AliMUONConstants.h"
#include "AliMUONDigit.h"
#include "AliMUONHit.h"
#include "AliMUONHitMapA1.h"
#include "AliMUONMerger.h"
#include "AliMUONPadHit.h"
#include "AliMUONTransientDigit.h"
#include "AliRun.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;
    fDebug      = 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 = pMUON->TreeH();
      if (treeH == 0x0)
       {
         cerr<<"AliMUONMerger::Exec: Can not get TreeH"<<endl;
         return;
       }
/******************************************************************/     

	
	Int_t ntracks = (Int_t) treeH->GetEntries();
	treeH->SetBranchStatus("*",0); // switch off all branches
        treeH->SetBranchStatus("MUON*",1); // switch on only MUON

	for (fTrack = 0; fTrack < ntracks; fTrack++) {
	    gAlice->ResetHits();
	    treeH->GetEntry(fTrack,0);
//
//   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();
		    if (!(fHitMap[fNch]->ValidateHit(fDigits[0], fDigits[1]))) continue;
		    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 (!(fHitMap[fNch]->ValidateHit(ipx, ipy))) continue;

			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,address);
	    
	    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 (fDebug>0)
		  printf("\n Attention - nptracks > kMAXTRACKS %d \n", nptracks);
		nptracks = kMAXTRACKS;
	    }
	    if (nptracks > 2) {
	        if (fDebug>0) {
		  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
88cb7938	16	/* $Id$ */
ba030c0e	17
88cb7938	18	#include <Riostream.h>
88cb7938	19	#include <TTree.h>
116cbefd	20	#include <TObjArray.h>
88cb7938	21	#include <TFile.h>
88cb7938	22	#include <TDirectory.h>
116cbefd	23	#include <TPDGCode.h>
66f93042	24
66f93042	25	#include "AliHitMap.h"
66f93042	26	#include "AliMUON.h"
116cbefd	27	#include "AliMUONChamber.h"
	28	#include "AliMUONConstants.h"
	29	#include "AliMUONDigit.h"
66f93042	30	#include "AliMUONHit.h"
116cbefd	31	#include "AliMUONHitMapA1.h"
116cbefd	32	#include "AliMUONMerger.h"
66f93042	33	#include "AliMUONPadHit.h"
66f93042	34	#include "AliMUONTransientDigit.h"
66f93042	35	#include "AliRun.h"
66f93042	36
	37	ClassImp(AliMUONMerger)
	38
	39	//___________________________________________
	40	AliMUONMerger::AliMUONMerger()
	41	{
	42	// Default constructor
	43	fEvNrSig = 0;
	44	fEvNrBgr = 0;
	45	fMerge = kDigitize;
	46	fFnBgr = 0;
	47	fHitMap = 0;
	48	fList = 0;
	49	fTrH1 = 0;
	50	fHitsBgr = 0;
	51	fPadHitsBgr = 0;
	52	fHitMap = 0;
	53	fList = 0;
77ccf5b0	54	fBgrFile = 0;
ba030c0e	55	fDebug = 0;
66f93042	56	}
	57
	58	//------------------------------------------------------------------------
	59	AliMUONMerger::~AliMUONMerger()
	60	{
	61	// Destructor
	62	if (fTrH1) delete fTrH1;
	63	if (fHitsBgr) delete fHitsBgr;
	64	if (fPadHitsBgr) delete fPadHitsBgr;
3ec837bb	65	if (fHitMap) delete [] fHitMap;
66f93042	66	if (fList) delete fList;
77ccf5b0	67	if (fBgrFile) delete fBgrFile;
66f93042	68	}
	69
	70	//------------------------------------------------------------------------
c7955c78	71	Bool_t AliMUONMerger::Exists(const AliMUONPadHit *padhit) const
66f93042	72	{
3ec837bb	73	// test if the given padhit was already fired
66f93042	74	return (fHitMap[fNch]->TestHit(padhit->PadX(),padhit->PadY()));
	75	}
	76
	77	//------------------------------------------------------------------------
8f36c696	78	void AliMUONMerger::Update(AliMUONPadHit *padhit)
66f93042	79	{
3ec837bb	80	// add new contribution to the fired padhit
8f36c696	81	AliMUONTransientDigit *pdigit =
	82	static_cast<AliMUONTransientDigit*>(
	83	fHitMap[fNch]->GetHit(padhit->PadX(),padhit->PadY()));
66f93042	84
66f93042	85	// update charge
66f93042	86	//
8f36c696	87	Int_t iqpad = padhit->QPad(); // charge per pad
	88	pdigit->AddSignal(iqpad);
	89	pdigit->AddPhysicsSignal(iqpad);
	90
66f93042	91	// update list of tracks
66f93042	92	//
3351e14b	93	Int_t track, charge;
8f36c696	94	if (fSignal) {
	95	track = fTrack;
	96	charge = iqpad;
66f93042	97	} else {
8f36c696	98	track = kBgTag;
8f36c696	99	charge = kBgTag;
66f93042	100	}
8f36c696	101	pdigit->UpdateTrackList(track,charge);
66f93042	102	}
	103
	104	//------------------------------------------------------------------------
8f36c696	105	void AliMUONMerger::CreateNew(AliMUONPadHit *padhit)
66f93042	106	{
3ec837bb	107	// add new transient digit to the list, update hit map
66f93042	108	fList->AddAtAndExpand(
66f93042	109	new AliMUONTransientDigit(fNch,fDigits),fCounter);
8f36c696	110	fHitMap[fNch]->SetHit(padhit->PadX(),padhit->PadY(),fCounter);
8f36c696	111	AliMUONTransientDigit* pdigit =
c7955c78	112	static_cast<AliMUONTransientDigit*>(fList->Last());
66f93042	113	// list of tracks
8f36c696	114	Int_t track, charge;
	115	if (fSignal) {
	116	track = fTrack;
	117	charge = padhit->QPad();
	118	} else {
	119	track = kBgTag;
	120	charge = kBgTag;
	121	}
	122	pdigit->AddToTrackList(track,charge);
	123	fCounter++;
66f93042	124	}
	125
	126
	127	//------------------------------------------------------------------------
	128	void AliMUONMerger::Init()
	129	{
	130	// Initialisation
77ccf5b0	131	// open only once the background file !!
77ccf5b0	132	if (fMerge && !fBgrFile) fBgrFile = InitBgr();
66f93042	133	}
	134
	135
	136
	137	//------------------------------------------------------------------------
	138	TFile* AliMUONMerger::InitBgr()
	139	{
	140	// Initialise background event
	141	TFile *file = new TFile(fFnBgr);
	142	// add error checking later
	143	printf("\n AliMUONMerger has opened %s file with background event \n", fFnBgr);
	144	fHitsBgr = new TClonesArray("AliMUONHit",1000);
	145	fPadHitsBgr = new TClonesArray("AliMUONPadHit",1000);
	146	return file;
	147	}
	148
	149	//------------------------------------------------------------------------
	150	void AliMUONMerger::Digitise()
	151	{
	152
	153	// keep galice.root for signal and name differently the file for
	154	// background when add! otherwise the track info for signal will be lost !
	155
	156	AliMUONChamber* iChamber;
	157	AliSegmentation* segmentation;
	158
	159	fList = new TObjArray;
66f93042	160
	161	AliMUON pMUON = (AliMUON ) gAlice->GetModule("MUON");
	162	fHitMap= new AliHitMap* [AliMUONConstants::NCh()];
66f93042	163	if (fMerge ) {
66f93042	164	fBgrFile->cd();
66f93042	165	//
66f93042	166	// Get Hits Tree header from file
77ccf5b0	167	//if(fHitsBgr) fHitsBgr->Clear(); // Useless because line 327
77ccf5b0	168	//if(fPadHitsBgr) fPadHitsBgr->Clear(); // Useless because line 328
66f93042	169	if(fTrH1) delete fTrH1;
	170	fTrH1 = 0;
	171
	172	char treeName[20];
	173	sprintf(treeName,"TreeH%d",fEvNrBgr);
	174	fTrH1 = (TTree*)gDirectory->Get(treeName);
	175	if (!fTrH1) {
	176	printf("ERROR: cannot find Hits Tree for event:%d\n",fEvNrBgr);
	177	}
	178	//
	179	// Set branch addresses
	180	TBranch *branch;
	181	char branchname[20];
	182	sprintf(branchname,"%s",pMUON->GetName());
	183	if (fTrH1 && fHitsBgr) {
	184	branch = fTrH1->GetBranch(branchname);
	185	if (branch) branch->SetAddress(&fHitsBgr);
	186	}
	187	if (fTrH1 && fPadHitsBgr) {
	188	branch = fTrH1->GetBranch("MUONCluster");
	189	if (branch) branch->SetAddress(&fPadHitsBgr);
	190	}
	191	}
	192	//
	193	// loop over cathodes
	194	//
8f36c696	195	fSignal = kTRUE;
66f93042	196	for (int icat = 0; icat < 2; icat++) {
66f93042	197	fCounter = 0;
66f93042	198	for (Int_t i = 0; i < AliMUONConstants::NCh(); i++) {
	199	iChamber = &(pMUON->Chamber(i));
	200	if (iChamber->Nsec() == 1 && icat == 1) {
	201	continue;
	202	} else {
	203	segmentation = iChamber->SegmentationModel(icat+1);
	204	}
	205	fHitMap[i] = new AliMUONHitMapA1(segmentation, fList);
66f93042	206	}
	207
	208	//
	209	// Loop over tracks
	210	//
	211
88cb7938	212	/******************************************************************/
	213	TTree* treeH = pMUON->TreeH();
	214	if (treeH == 0x0)
	215	{
	216	cerr<<"AliMUONMerger::Exec: Can not get TreeH"<<endl;
	217	return;
	218	}
	219	/******************************************************************/
	220
	221
	222
66f93042	223	Int_t ntracks = (Int_t) treeH->GetEntries();
4b1670dc	224	treeH->SetBranchStatus("*",0); // switch off all branches
4b1670dc	225	treeH->SetBranchStatus("MUON*",1); // switch on only MUON
66f93042	226
	227	for (fTrack = 0; fTrack < ntracks; fTrack++) {
	228	gAlice->ResetHits();
4b1670dc	229	treeH->GetEntry(fTrack,0);
66f93042	230	//
	231	// Loop over hits
	232	for(AliMUONHit* mHit = (AliMUONHit*)pMUON->FirstHit(-1);
	233	mHit;
	234	mHit = (AliMUONHit*)pMUON->NextHit())
	235	{
	236	fNch = mHit->Chamber()-1; // chamber number
	237	if (fNch > AliMUONConstants::NCh()-1) continue;
	238	iChamber = &(pMUON->Chamber(fNch));
66f93042	239
	240	//
	241	// Loop over pad hits
	242	for (AliMUONPadHit* mPad =
	243	(AliMUONPadHit*)pMUON->FirstPad(mHit,pMUON->PadHits());
	244	mPad;
	245	mPad = (AliMUONPadHit*)pMUON->NextPad(pMUON->PadHits()))
	246	{
	247	Int_t cathode = mPad->Cathode(); // cathode number
66f93042	248	if (cathode != (icat+1)) continue;
c7955c78	249	Int_t iqpad = Int_t(mPad->QPad()); // charge per pad
	250	// segmentation = iChamber->SegmentationModel(cathode);
	251	fDigits[0] = mPad->PadX();
	252	fDigits[1] = mPad->PadY();
1e2fa2a2	253	if (!(fHitMap[fNch]->ValidateHit(fDigits[0], fDigits[1]))) continue;
66f93042	254	fDigits[2] = icat;
	255	fDigits[3] = iqpad;
	256	fDigits[4] = iqpad;
	257	if (mHit->Particle() == kMuonPlus \|\|
	258	mHit->Particle() == kMuonMinus) {
	259	fDigits[5] = mPad->HitNumber();
	260	} else fDigits[5] = -1;
	261
	262	// build the list of fired pads and update the info
	263
	264	if (!Exists(mPad)) {
	265	CreateNew(mPad);
	266	} else {
	267	Update(mPad);
	268	} // end if pdigit
	269	} //end loop over clusters
	270	} // hit loop
	271	} // track loop
	272
	273	// open the file with background
	274
	275	if (fMerge) {
8f36c696	276	fSignal = kFALSE;
66f93042	277	ntracks = (Int_t)fTrH1->GetEntries();
	278	//
	279	// Loop over tracks
	280	//
	281	for (fTrack = 0; fTrack < ntracks; fTrack++) {
	282
	283	if (fHitsBgr) fHitsBgr->Clear();
	284	if (fPadHitsBgr) fPadHitsBgr->Clear();
	285
	286	fTrH1->GetEvent(fTrack);
	287	//
	288	// Loop over hits
	289	AliMUONHit* mHit;
c7955c78	290	for(Int_t i = 0; i < fHitsBgr->GetEntriesFast(); ++i)
66f93042	291	{
	292	mHit = (AliMUONHit) (fHitsBgr)[i];
	293	fNch = mHit->Chamber()-1; // chamber number
	294	iChamber = &(pMUON->Chamber(fNch));
66f93042	295	//
	296	// Loop over pad hits
	297	for (AliMUONPadHit* mPad =
	298	(AliMUONPadHit*)pMUON->FirstPad(mHit,fPadHitsBgr);
	299	mPad;
	300	mPad = (AliMUONPadHit*)pMUON->NextPad(fPadHitsBgr))
	301	{
	302	Int_t cathode = mPad->Cathode(); // cathode number
	303	Int_t ipx = mPad->PadX(); // pad number on X
	304	Int_t ipy = mPad->PadY(); // pad number on Y
	305	Int_t iqpad = Int_t(mPad->QPad()); // charge per pad
1e2fa2a2	306	if (!(fHitMap[fNch]->ValidateHit(ipx, ipy))) continue;
66f93042	307
66f93042	308	if (cathode != (icat+1)) continue;
66f93042	309	fDigits[0] = ipx;
	310	fDigits[1] = ipy;
	311	fDigits[2] = icat;
	312	fDigits[3] = iqpad;
	313	fDigits[4] = 0;
	314	fDigits[5] = -1;
	315
	316	// build the list of fired pads and update the info
	317	if (!Exists(mPad)) {
	318	CreateNew(mPad);
	319	} else {
	320	Update(mPad);
	321	} // end if !Exists
	322	} //end loop over clusters
	323	} // hit loop
	324	} // track loop
	325
c7955c78	326	TTree *treeK = gAlice->TreeK();
66f93042	327	TFile *file = NULL;
66f93042	328
c7955c78	329	if (treeK) file = treeK->GetCurrentFile();
66f93042	330	file->cd();
66f93042	331	} // if fMerge
66f93042	332
8f36c696	333	Int_t tracks[kMAXTRACKS];
8f36c696	334	Int_t charges[kMAXTRACKS];
66f93042	335	Int_t nentries = fList->GetEntriesFast();
	336
	337	for (Int_t nent = 0; nent < nentries; nent++) {
	338	AliMUONTransientDigit address = (AliMUONTransientDigit)fList->At(nent);
	339	if (address == 0) continue;
	340	Int_t ich = address->Chamber();
	341	Int_t q = address->Signal();
	342	iChamber = &(pMUON->Chamber(ich));
	343	//
	344	// Digit Response (noise, threshold, saturation, ...)
	345	AliMUONResponse * response = iChamber->ResponseModel();
ba030c0e	346	q = response->DigitResponse(q,address);
66f93042	347
	348	if (!q) continue;
	349
	350	fDigits[0] = address->PadX();
	351	fDigits[1] = address->PadY();
	352	fDigits[2] = address->Cathode();
	353	fDigits[3] = q;
	354	fDigits[4] = address->Physics();
	355	fDigits[5] = address->Hit();
	356
8f36c696	357	Int_t nptracks = address->GetNTracks();
66f93042	358
8f36c696	359	if (nptracks > kMAXTRACKS) {
ba030c0e	360	if (fDebug>0)
ba030c0e	361	printf("\n Attention - nptracks > kMAXTRACKS %d \n", nptracks);
8f36c696	362	nptracks = kMAXTRACKS;
66f93042	363	}
66f93042	364	if (nptracks > 2) {
ba030c0e	365	if (fDebug>0) {
	366	printf("Attention - nptracks > 2 %d \n",nptracks);
	367	printf("cat,ich,ix,iy,q %d %d %d %d %d \n",icat,ich,fDigits[0],fDigits[1],q);
	368	}
66f93042	369	}
66f93042	370	for (Int_t tr = 0; tr < nptracks; tr++) {
8f36c696	371	tracks[tr] = address->GetTrack(tr);
8f36c696	372	charges[tr] = address->GetCharge(tr);
66f93042	373	} //end loop over list of tracks for one pad
	374	// Sort list of tracks according to charge
	375	if (nptracks > 1) {
a3f472a9	376	SortTracks(tracks,charges,nptracks);
66f93042	377	}
8f36c696	378	if (nptracks < kMAXTRACKS ) {
8f36c696	379	for (Int_t i = nptracks; i < kMAXTRACKS; i++) {
66f93042	380	tracks[i] = 0;
	381	charges[i] = 0;
	382	}
	383	}
	384
	385	// fill digits
	386	pMUON->AddDigits(ich,tracks,charges,fDigits);
66f93042	387	}
	388	gAlice->TreeD()->Fill();
	389	pMUON->ResetDigits();
	390	fList->Delete();
	391
	392
	393	for(Int_t ii = 0; ii < AliMUONConstants::NCh(); ++ii) {
	394	if (fHitMap[ii]) {
c7955c78	395	delete fHitMap[ii];
66f93042	396	fHitMap[ii] = 0;
	397	}
	398	}
66f93042	399	} //end loop over cathodes
66f93042	400	delete [] fHitMap;
66f93042	401	delete fList;
66f93042	402
77ccf5b0	403	// no need to delete ... and it makes a crash also
	404	// if (fHitsBgr) fHitsBgr->Delete();
	405	// if (fPadHitsBgr) fPadHitsBgr->Delete();
66f93042	406	// gObjectTable->Print();
	407	}
	408
	409
	410
a3f472a9	411	void AliMUONMerger::SortTracks(Int_t tracks,Int_t charges,Int_t ntr)
	412	{
	413	//
	414	// Sort the list of tracks contributing to a given digit
	415	// Only the 3 most significant tracks are acctually sorted
	416	//
	417
	418	//
	419	// Loop over signals, only 3 times
	420	//
	421
	422	Int_t qmax;
	423	Int_t jmax;
	424	Int_t idx[3] = {-2,-2,-2};
	425	Int_t jch[3] = {-2,-2,-2};
	426	Int_t jtr[3] = {-2,-2,-2};
	427	Int_t i,j,imax;
	428
	429	if (ntr<3) imax=ntr;
	430	else imax=3;
	431	for(i=0;i<imax;i++){
	432	qmax=0;
	433	jmax=0;
	434
	435	for(j=0;j<ntr;j++){
	436
	437	if((i == 1 && j == idx[i-1])
	438	\|\|(i == 2 && (j == idx[i-1] \|\| j == idx[i-2]))) continue;
	439
	440	if(charges[j] > qmax) {
	441	qmax = charges[j];
	442	jmax=j;
	443	}
	444	}
	445
	446	if(qmax > 0) {
	447	idx[i]=jmax;
	448	jch[i]=charges[jmax];
	449	jtr[i]=tracks[jmax];
	450	}
	451
	452	}
	453
	454	for(i=0;i<3;i++){
	455	if (jtr[i] == -2) {
	456	charges[i]=0;
	457	tracks[i]=0;
	458	} else {
	459	charges[i]=jch[i];
	460	tracks[i]=jtr[i];
	461	}
	462	}
	463	}
	464
66f93042	465
66f93042	466