[u/mrichter/AliRoot.git] / PMD / AliPMDtracker.cxx

/***************************************************************************
 * Copyright(c) 1998-1999, 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.                  *
 **************************************************************************/

//-----------------------------------------------------//
//                                                     //
//           Date   : March 25 2004                    //
//  This reads the file PMD.RecPoints.root(TreeR),     //
//  calls the Clustering algorithm and stores the      //
//  clustering output in PMD.RecPoints.root(TreeR)     // 
//                                                     //
//-----------------------------------------------------//

#include <Riostream.h>
#include <TMath.h>
#include <TTree.h>
#include <TObjArray.h>
#include <TClonesArray.h>
#include <TFile.h>
#include <TBranch.h>
#include <TNtuple.h>
#include <TParticle.h>

#include "AliPMDcluster.h"
#include "AliPMDclupid.h"
#include "AliPMDrecpoint1.h"
#include "AliPMDrecdata.h"
#include "AliPMDrechit.h"
#include "AliPMDUtility.h"
#include "AliPMDDiscriminator.h"
#include "AliPMDEmpDiscriminator.h"
#include "AliPMDtracker.h"

#include "AliESDPmdTrack.h"
#include "AliESDEvent.h"
#include "AliLog.h"

ClassImp(AliPMDtracker)

AliPMDtracker::AliPMDtracker():
  fTreeR(0),
  fRecpoints(new TClonesArray("AliPMDrecpoint1", 10)),
  fRechits(new TClonesArray("AliPMDrechit", 10)),
  fPMDcontin(new TObjArray()),
  fPMDcontout(new TObjArray()),
  fPMDutil(new AliPMDUtility()),
  fPMDrecpoint(0),
  fPMDclin(0),
  fPMDclout(0),
  fXvertex(0.),
  fYvertex(0.),
  fZvertex(0.),
  fSigmaX(0.),
  fSigmaY(0.),
  fSigmaZ(0.)
{
  //
  // Default Constructor
  //
}
//--------------------------------------------------------------------//
AliPMDtracker:: AliPMDtracker(const AliPMDtracker & /* tracker */):
  TObject(/* tracker */),
  fTreeR(0),
  fRecpoints(NULL),
  fRechits(NULL),
  fPMDcontin(NULL),
  fPMDcontout(NULL),
  fPMDutil(NULL),
  fPMDrecpoint(0),
  fPMDclin(0),
  fPMDclout(0),
  fXvertex(0.),
  fYvertex(0.),
  fZvertex(0.),
  fSigmaX(0.),
  fSigmaY(0.),
  fSigmaZ(0.)
{
  // copy constructor
  AliError("Copy constructor not allowed");
}

//--------------------------------------------------------------------//
AliPMDtracker& AliPMDtracker::operator=(const AliPMDtracker & /* tracker */)
{
 // assignment operator
  AliError("Assignment operator not allowed");
  return *this;
}

//--------------------------------------------------------------------//
AliPMDtracker::~AliPMDtracker()
{
  // Destructor
  if (fRecpoints)
    {
      fRecpoints->Clear();
    }
  if (fRechits)
    {
      fRechits->Clear();
    }

  if (fPMDcontin)
    {
      fPMDcontin->Delete();
      delete fPMDcontin;
      fPMDcontin=0;
      
    }
  if (fPMDcontout)
  {
      fPMDcontout->Delete();
      delete fPMDcontout;
      fPMDcontout=0;

    }
  delete fPMDutil;
}
//--------------------------------------------------------------------//
void AliPMDtracker::LoadClusters(TTree *treein)
{
  // Load the Reconstructed tree
  fTreeR = treein;
}
//--------------------------------------------------------------------//
void AliPMDtracker::Clusters2Tracks(AliESDEvent *event)
{
  // Converts digits to recpoints after running clustering
  // algorithm on CPV plane and PREshower plane
  //

  Int_t   idet;
  Int_t   ismn;
  Int_t   trackno, trackpid;
  Float_t clusdata[6];
  
  Int_t *irow;
  Int_t *icol;
  Int_t *itra;
  Int_t *ipid;
  Float_t *cadc;

  AliPMDrechit *rechit = 0x0;

  TBranch *branch = fTreeR->GetBranch("PMDRecpoint");
  if (!branch)
    {
      AliError("PMDRecpoint branch not found");
      return;
    }
  branch->SetAddress(&fRecpoints);  

  TBranch *branch1 = fTreeR->GetBranch("PMDRechit");
  if (!branch1)
    {
      AliError("PMDRechit branch not found");
      return;
    }
  branch1->SetAddress(&fRechits);  

  Int_t ncrhit = 0;
  Int_t   nmodules = (Int_t) branch->GetEntries();
  
  AliDebug(1,Form("Number of modules filled in treeR = %d",nmodules));
  for (Int_t imodule = 0; imodule < nmodules; imodule++)
    {
      branch->GetEntry(imodule); 
      Int_t nentries = fRecpoints->GetLast();
      AliDebug(2,Form("Number of clusters per modules filled in treeR = %d"
		      ,nentries));

      for(Int_t ient = 0; ient < nentries+1; ient++)
	{
	  fPMDrecpoint = (AliPMDrecpoint1*)fRecpoints->UncheckedAt(ient);
	  idet        = fPMDrecpoint->GetDetector();
	  ismn        = fPMDrecpoint->GetSMNumber();
	  clusdata[0] = fPMDrecpoint->GetClusX();
	  clusdata[1] = fPMDrecpoint->GetClusY();
	  clusdata[2] = fPMDrecpoint->GetClusADC();
	  clusdata[3] = fPMDrecpoint->GetClusCells();
	  clusdata[4] = fPMDrecpoint->GetClusSigmaX();
	  clusdata[5] = fPMDrecpoint->GetClusSigmaY();
	  
	  if (clusdata[4] >= 0. && clusdata[5] >= 0.)
	    { 
	      // extract the associated cell information
	      branch1->GetEntry(ncrhit); 
	      Int_t nenbr1 = fRechits->GetLast() + 1;

	      irow = new Int_t[nenbr1];
	      icol = new Int_t[nenbr1];
	      itra = new Int_t[nenbr1];
	      ipid = new Int_t[nenbr1];
	      cadc = new Float_t[nenbr1];

	      for (Int_t ient1 = 0; ient1 < nenbr1; ient1++)
		{
		  rechit = (AliPMDrechit*)fRechits->UncheckedAt(ient1);
		  //irow[ient1] = rechit->GetCellX();
		  //icol[ient1] = rechit->GetCellY();
		  itra[ient1] = rechit->GetCellTrack();
		  ipid[ient1] = rechit->GetCellPid();
		  cadc[ient1] = rechit->GetCellAdc();
		}
	      AssignTrPidToCluster(nenbr1, itra, ipid, cadc,
				   trackno, trackpid);

	      delete [] irow;
	      delete [] icol;
	      delete [] itra;
	      delete [] ipid;
	      delete [] cadc;

	      fPMDclin = new AliPMDrecdata(idet,ismn,trackno,trackpid,clusdata);
	      fPMDcontin->Add(fPMDclin);

	      ncrhit++;
	    }
	}
    }

  AliPMDDiscriminator *pmddiscriminator = new AliPMDEmpDiscriminator();
  pmddiscriminator->Discrimination(fPMDcontin,fPMDcontout);

  const Float_t kzpos = 361.5;    // middle of the PMD

  Int_t   det,smn,trno,trpid,mstat;
  Float_t xpos,ypos;
  Float_t adc, ncell, radx, rady;
  Float_t xglobal = 0., yglobal = 0., zglobal = 0;
  Float_t pid;


  Int_t nentries2 = fPMDcontout->GetEntries();
  AliDebug(1,Form("Number of clusters coming after discrimination = %d"
		  ,nentries2));
  for (Int_t ient1 = 0; ient1 < nentries2; ient1++)
    {
      fPMDclout = (AliPMDclupid*)fPMDcontout->UncheckedAt(ient1);
      
      det   = fPMDclout->GetDetector();
      smn   = fPMDclout->GetSMN();
      trno  = fPMDclout->GetClusTrackNo();
      trpid = fPMDclout->GetClusTrackPid();
      mstat = fPMDclout->GetClusMatching();
      xpos  = fPMDclout->GetClusX();
      ypos  = fPMDclout->GetClusY();
      adc   = fPMDclout->GetClusADC();
      ncell = fPMDclout->GetClusCells();
      radx  = fPMDclout->GetClusSigmaX();
      rady  = fPMDclout->GetClusSigmaY();
      pid   = fPMDclout->GetClusPID();
      
      //
      /**********************************************************************
       *    det   : Detector, 0: PRE & 1:CPV                                *
       *    smn   : Serial Module Number 0 to 23 for each plane             *
       *    xpos  : x-position of the cluster                               *
       *    ypos  : y-position of the cluster                               *
       *            THESE xpos & ypos are not the true xpos and ypos        *
       *            for some of the unit modules. They are rotated.         *
       *    adc   : ADC contained in the cluster                            *
       *    ncell : Number of cells contained in the cluster                *
       *    rad   : radius of the cluster (1d fit)                          *
       **********************************************************************/
      //

      fPMDutil->RectGeomCellPos(smn,xpos,ypos,xglobal,yglobal);

      if (det == 0)
	{
	  zglobal = kzpos + 1.6; // PREshower plane
	}
      else if (det == 1)
	{
	  zglobal = kzpos - 1.7; // CPV plane
	}

      // Fill ESD

      AliESDPmdTrack *esdpmdtr = new  AliESDPmdTrack();

      esdpmdtr->SetDetector(det);
      esdpmdtr->SetSmn(smn);
      esdpmdtr->SetClusterTrackNo(trno);
      esdpmdtr->SetClusterTrackPid(trpid);
      esdpmdtr->SetClusterMatching(mstat);
      
      esdpmdtr->SetClusterX(xglobal);
      esdpmdtr->SetClusterY(yglobal);
      esdpmdtr->SetClusterZ(zglobal);
      esdpmdtr->SetClusterADC(adc);
      esdpmdtr->SetClusterCells(ncell);
      esdpmdtr->SetClusterPID(pid);
      esdpmdtr->SetClusterSigmaX(radx);
      esdpmdtr->SetClusterSigmaY(rady);

      event->AddPmdTrack(esdpmdtr);
    }

  fPMDcontin->Delete();
  fPMDcontout->Delete();

}
//--------------------------------------------------------------------//
void AliPMDtracker::AssignTrPidToCluster(Int_t nentry, Int_t *itra,
					 Int_t *ipid, Float_t *cadc,
					 Int_t &trackno, Int_t &trackpid)
{
  // assign the track number and the corresponding pid to a cluster
  // split cluster part will be done at the time of calculating eff/pur

  Int_t *phentry = new Int_t [nentry];
  Int_t *trenergy = 0x0;
  Int_t *sortcoord = 0x0;

  Int_t ngtrack = 0;
  for (Int_t i = 0; i < nentry; i++)
    {
      phentry[i] = -1;
      if (ipid[i] == 22)
	{
	  phentry[ngtrack] = i;
	  ngtrack++;
	}
    }

  if (ngtrack == 0)
    {
      // hadron track
      // no need of track number, set to -1
      trackpid = 8;
      trackno  = -1;
    }
  else if (ngtrack == 1)
    {
      // only one photon track
      // track number set to photon track
      trackpid = 1;
      trackno  = itra[phentry[0]];
    }
  else if (ngtrack > 1)
    {
      // more than one photon track

      trenergy  = new Int_t [ngtrack];
      sortcoord = new Int_t [ngtrack];
      for (Int_t i = 0; i < ngtrack; i++)
	{
	  trenergy[i] = 0.;
	  for (Int_t j = 0; j < nentry; j++)
	    {
	      if (ipid[j] == 22 && itra[j] == itra[phentry[i]])
		{
		  trenergy[i] += cadc[j];
		}
	    }
	}

      Bool_t jsort = true;
      TMath::Sort(ngtrack,trenergy,sortcoord,jsort);

      Int_t gtr = sortcoord[0];   
      trackno  = itra[phentry[gtr]];   // highest adc track
      trackpid = 1;

      delete [] trenergy;
      delete [] sortcoord;

    }   // end of ngtrack > 1


}
//--------------------------------------------------------------------//
void AliPMDtracker::SetVertex(Double_t vtx[3], Double_t evtx[3])
{
  fXvertex = vtx[0];
  fYvertex = vtx[1];
  fZvertex = vtx[2];
  fSigmaX  = evtx[0];
  fSigmaY  = evtx[1];
  fSigmaZ  = evtx[2];
}
//--------------------------------------------------------------------//
void AliPMDtracker::ResetClusters()
{
  if (fRecpoints) fRecpoints->Clear();
}
//--------------------------------------------------------------------//
Commit	Line	Data
7dcaf913	1	/***************************************************************************
	2	* Copyright(c) 1998-1999, 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	// //
	18	// Date : March 25 2004 //
	19	// This reads the file PMD.RecPoints.root(TreeR), //
	20	// calls the Clustering algorithm and stores the //
	21	// clustering output in PMD.RecPoints.root(TreeR) //
	22	// //
	23	//-----------------------------------------------------//
	24
	25	#include <Riostream.h>
	26	#include <TMath.h>
7dcaf913	27	#include <TTree.h>
7dcaf913	28	#include <TObjArray.h>
	29	#include <TClonesArray.h>
	30	#include <TFile.h>
	31	#include <TBranch.h>
	32	#include <TNtuple.h>
	33	#include <TParticle.h>
	34
	35	#include "AliPMDcluster.h"
	36	#include "AliPMDclupid.h"
	37	#include "AliPMDrecpoint1.h"
b0e4d1e1	38	#include "AliPMDrecdata.h"
b0e4d1e1	39	#include "AliPMDrechit.h"
7dcaf913	40	#include "AliPMDUtility.h"
7dcaf913	41	#include "AliPMDDiscriminator.h"
26f1ae17	42	#include "AliPMDEmpDiscriminator.h"
7dcaf913	43	#include "AliPMDtracker.h"
	44
	45	#include "AliESDPmdTrack.h"
af885e0f	46	#include "AliESDEvent.h"
ecee2a1a	47	#include "AliLog.h"
7dcaf913	48
	49	ClassImp(AliPMDtracker)
	50
	51	AliPMDtracker::AliPMDtracker():
	52	fTreeR(0),
722ccc67	53	fRecpoints(new TClonesArray("AliPMDrecpoint1", 10)),
b0e4d1e1	54	fRechits(new TClonesArray("AliPMDrechit", 10)),
7dcaf913	55	fPMDcontin(new TObjArray()),
7dcaf913	56	fPMDcontout(new TObjArray()),
7dcaf913	57	fPMDutil(new AliPMDUtility()),
	58	fPMDrecpoint(0),
	59	fPMDclin(0),
	60	fPMDclout(0),
7dcaf913	61	fXvertex(0.),
	62	fYvertex(0.),
	63	fZvertex(0.),
	64	fSigmaX(0.),
	65	fSigmaY(0.),
	66	fSigmaZ(0.)
	67	{
	68	//
	69	// Default Constructor
	70	//
	71	}
a48edddd	72	//--------------------------------------------------------------------//
a48edddd	73	AliPMDtracker:: AliPMDtracker(const AliPMDtracker & /* tracker */):
2332574a	74	TObject(/* tracker */),
	75	fTreeR(0),
	76	fRecpoints(NULL),
b0e4d1e1	77	fRechits(NULL),
2332574a	78	fPMDcontin(NULL),
	79	fPMDcontout(NULL),
	80	fPMDutil(NULL),
	81	fPMDrecpoint(0),
	82	fPMDclin(0),
	83	fPMDclout(0),
	84	fXvertex(0.),
	85	fYvertex(0.),
	86	fZvertex(0.),
	87	fSigmaX(0.),
	88	fSigmaY(0.),
	89	fSigmaZ(0.)
a48edddd	90	{
	91	// copy constructor
	92	AliError("Copy constructor not allowed");
	93	}
	94
	95	//--------------------------------------------------------------------//
	96	AliPMDtracker& AliPMDtracker::operator=(const AliPMDtracker & /* tracker */)
	97	{
	98	// assignment operator
	99	AliError("Assignment operator not allowed");
	100	return *this;
	101	}
	102
7dcaf913	103	//--------------------------------------------------------------------//
	104	AliPMDtracker::~AliPMDtracker()
	105	{
	106	// Destructor
	107	if (fRecpoints)
	108	{
722ccc67	109	fRecpoints->Clear();
7dcaf913	110	}
b0e4d1e1	111	if (fRechits)
	112	{
	113	fRechits->Clear();
	114	}
	115
7dcaf913	116	if (fPMDcontin)
	117	{
	118	fPMDcontin->Delete();
	119	delete fPMDcontin;
	120	fPMDcontin=0;
a1e9ac09	121
7dcaf913	122	}
7dcaf913	123	if (fPMDcontout)
722ccc67	124	{
7dcaf913	125	fPMDcontout->Delete();
	126	delete fPMDcontout;
	127	fPMDcontout=0;
a1e9ac09	128
7dcaf913	129	}
316c6cd9	130	delete fPMDutil;
7dcaf913	131	}
	132	//--------------------------------------------------------------------//
	133	void AliPMDtracker::LoadClusters(TTree *treein)
	134	{
	135	// Load the Reconstructed tree
	136	fTreeR = treein;
	137	}
	138	//--------------------------------------------------------------------//
af885e0f	139	void AliPMDtracker::Clusters2Tracks(AliESDEvent *event)
7dcaf913	140	{
	141	// Converts digits to recpoints after running clustering
	142	// algorithm on CPV plane and PREshower plane
	143	//
	144
	145	Int_t idet;
	146	Int_t ismn;
b0e4d1e1	147	Int_t trackno, trackpid;
26f1ae17	148	Float_t clusdata[6];
b0e4d1e1	149
	150	Int_t *irow;
	151	Int_t *icol;
	152	Int_t *itra;
	153	Int_t *ipid;
	154	Float_t *cadc;
	155
	156	AliPMDrechit *rechit = 0x0;
7dcaf913	157
7dcaf913	158	TBranch *branch = fTreeR->GetBranch("PMDRecpoint");
ecee2a1a	159	if (!branch)
	160	{
	161	AliError("PMDRecpoint branch not found");
	162	return;
	163	}
7dcaf913	164	branch->SetAddress(&fRecpoints);
b0e4d1e1	165
	166	TBranch *branch1 = fTreeR->GetBranch("PMDRechit");
	167	if (!branch1)
	168	{
	169	AliError("PMDRechit branch not found");
	170	return;
	171	}
	172	branch1->SetAddress(&fRechits);
d270ca46	173
d270ca46	174	Int_t ncrhit = 0;
26f1ae17	175	Int_t nmodules = (Int_t) branch->GetEntries();
26f1ae17	176
ecee2a1a	177	AliDebug(1,Form("Number of modules filled in treeR = %d",nmodules));
7dcaf913	178	for (Int_t imodule = 0; imodule < nmodules; imodule++)
7dcaf913	179	{
26f1ae17	180	branch->GetEntry(imodule);
7dcaf913	181	Int_t nentries = fRecpoints->GetLast();
ecee2a1a	182	AliDebug(2,Form("Number of clusters per modules filled in treeR = %d"
ecee2a1a	183	,nentries));
b0e4d1e1	184
7dcaf913	185	for(Int_t ient = 0; ient < nentries+1; ient++)
	186	{
	187	fPMDrecpoint = (AliPMDrecpoint1*)fRecpoints->UncheckedAt(ient);
	188	idet = fPMDrecpoint->GetDetector();
	189	ismn = fPMDrecpoint->GetSMNumber();
	190	clusdata[0] = fPMDrecpoint->GetClusX();
	191	clusdata[1] = fPMDrecpoint->GetClusY();
	192	clusdata[2] = fPMDrecpoint->GetClusADC();
	193	clusdata[3] = fPMDrecpoint->GetClusCells();
26f1ae17	194	clusdata[4] = fPMDrecpoint->GetClusSigmaX();
26f1ae17	195	clusdata[5] = fPMDrecpoint->GetClusSigmaY();
920e13db	196
e6ba3040	197	if (clusdata[4] >= 0. && clusdata[5] >= 0.)
920e13db	198	{
b0e4d1e1	199	// extract the associated cell information
	200	branch1->GetEntry(ncrhit);
	201	Int_t nenbr1 = fRechits->GetLast() + 1;
	202
	203	irow = new Int_t[nenbr1];
	204	icol = new Int_t[nenbr1];
	205	itra = new Int_t[nenbr1];
	206	ipid = new Int_t[nenbr1];
	207	cadc = new Float_t[nenbr1];
	208
	209	for (Int_t ient1 = 0; ient1 < nenbr1; ient1++)
	210	{
	211	rechit = (AliPMDrechit*)fRechits->UncheckedAt(ient1);
	212	//irow[ient1] = rechit->GetCellX();
	213	//icol[ient1] = rechit->GetCellY();
	214	itra[ient1] = rechit->GetCellTrack();
	215	ipid[ient1] = rechit->GetCellPid();
	216	cadc[ient1] = rechit->GetCellAdc();
	217	}
	218	AssignTrPidToCluster(nenbr1, itra, ipid, cadc,
	219	trackno, trackpid);
	220
	221	delete [] irow;
	222	delete [] icol;
	223	delete [] itra;
	224	delete [] ipid;
	225	delete [] cadc;
	226
	227	fPMDclin = new AliPMDrecdata(idet,ismn,trackno,trackpid,clusdata);
920e13db	228	fPMDcontin->Add(fPMDclin);
b0e4d1e1	229
b0e4d1e1	230	ncrhit++;
920e13db	231	}
7dcaf913	232	}
	233	}
	234
26f1ae17	235	AliPMDDiscriminator *pmddiscriminator = new AliPMDEmpDiscriminator();
26f1ae17	236	pmddiscriminator->Discrimination(fPMDcontin,fPMDcontout);
7dcaf913	237
50555ba1	238	const Float_t kzpos = 361.5; // middle of the PMD
01c4d84a	239
b0e4d1e1	240	Int_t det,smn,trno,trpid,mstat;
7dcaf913	241	Float_t xpos,ypos;
b0e4d1e1	242	Float_t adc, ncell, radx, rady;
01c4d84a	243	Float_t xglobal = 0., yglobal = 0., zglobal = 0;
7dcaf913	244	Float_t pid;
7dcaf913	245
7dcaf913	246
7dcaf913	247	Int_t nentries2 = fPMDcontout->GetEntries();
ecee2a1a	248	AliDebug(1,Form("Number of clusters coming after discrimination = %d"
ecee2a1a	249	,nentries2));
7dcaf913	250	for (Int_t ient1 = 0; ient1 < nentries2; ient1++)
	251	{
	252	fPMDclout = (AliPMDclupid*)fPMDcontout->UncheckedAt(ient1);
	253
	254	det = fPMDclout->GetDetector();
	255	smn = fPMDclout->GetSMN();
b0e4d1e1	256	trno = fPMDclout->GetClusTrackNo();
	257	trpid = fPMDclout->GetClusTrackPid();
	258	mstat = fPMDclout->GetClusMatching();
7dcaf913	259	xpos = fPMDclout->GetClusX();
	260	ypos = fPMDclout->GetClusY();
	261	adc = fPMDclout->GetClusADC();
	262	ncell = fPMDclout->GetClusCells();
b0e4d1e1	263	radx = fPMDclout->GetClusSigmaX();
b0e4d1e1	264	rady = fPMDclout->GetClusSigmaY();
7dcaf913	265	pid = fPMDclout->GetClusPID();
7dcaf913	266
7dcaf913	267	//
	268	/**********************************************************************
	269	* det : Detector, 0: PRE & 1:CPV *
01c4d84a	270	* smn : Serial Module Number 0 to 23 for each plane *
7dcaf913	271	* xpos : x-position of the cluster *
	272	* ypos : y-position of the cluster *
	273	* THESE xpos & ypos are not the true xpos and ypos *
	274	* for some of the unit modules. They are rotated. *
	275	* adc : ADC contained in the cluster *
	276	* ncell : Number of cells contained in the cluster *
	277	* rad : radius of the cluster (1d fit) *
7dcaf913	278	**********************************************************************/
7dcaf913	279	//
01c4d84a	280
01c4d84a	281	fPMDutil->RectGeomCellPos(smn,xpos,ypos,xglobal,yglobal);
26f1ae17	282
	283	if (det == 0)
	284	{
50555ba1	285	zglobal = kzpos + 1.6; // PREshower plane
26f1ae17	286	}
	287	else if (det == 1)
	288	{
50555ba1	289	zglobal = kzpos - 1.7; // CPV plane
26f1ae17	290	}
26f1ae17	291
7dcaf913	292	// Fill ESD
	293
	294	AliESDPmdTrack *esdpmdtr = new AliESDPmdTrack();
	295
	296	esdpmdtr->SetDetector(det);
c6f4d28b	297	esdpmdtr->SetSmn(smn);
	298	esdpmdtr->SetClusterTrackNo(trno);
	299	esdpmdtr->SetClusterTrackPid(trpid);
	300	esdpmdtr->SetClusterMatching(mstat);
	301
26f1ae17	302	esdpmdtr->SetClusterX(xglobal);
	303	esdpmdtr->SetClusterY(yglobal);
	304	esdpmdtr->SetClusterZ(zglobal);
7dcaf913	305	esdpmdtr->SetClusterADC(adc);
26f1ae17	306	esdpmdtr->SetClusterCells(ncell);
7dcaf913	307	esdpmdtr->SetClusterPID(pid);
c6f4d28b	308	esdpmdtr->SetClusterSigmaX(radx);
c6f4d28b	309	esdpmdtr->SetClusterSigmaY(rady);
7dcaf913	310
	311	event->AddPmdTrack(esdpmdtr);
	312	}
a1e9ac09	313
	314	fPMDcontin->Delete();
	315	fPMDcontout->Delete();
	316
b0e4d1e1	317	}
	318	//--------------------------------------------------------------------//
	319	void AliPMDtracker::AssignTrPidToCluster(Int_t nentry, Int_t *itra,
	320	Int_t ipid, Float_t cadc,
	321	Int_t &trackno, Int_t &trackpid)
	322	{
	323	// assign the track number and the corresponding pid to a cluster
	324	// split cluster part will be done at the time of calculating eff/pur
	325
	326	Int_t *phentry = new Int_t [nentry];
	327	Int_t *trenergy = 0x0;
	328	Int_t *sortcoord = 0x0;
	329
	330	Int_t ngtrack = 0;
	331	for (Int_t i = 0; i < nentry; i++)
	332	{
	333	phentry[i] = -1;
	334	if (ipid[i] == 22)
	335	{
	336	phentry[ngtrack] = i;
	337	ngtrack++;
	338	}
	339	}
	340
	341	if (ngtrack == 0)
	342	{
	343	// hadron track
	344	// no need of track number, set to -1
	345	trackpid = 8;
	346	trackno = -1;
	347	}
	348	else if (ngtrack == 1)
	349	{
	350	// only one photon track
	351	// track number set to photon track
	352	trackpid = 1;
	353	trackno = itra[phentry[0]];
	354	}
	355	else if (ngtrack > 1)
	356	{
	357	// more than one photon track
	358
	359	trenergy = new Int_t [ngtrack];
	360	sortcoord = new Int_t [ngtrack];
	361	for (Int_t i = 0; i < ngtrack; i++)
	362	{
	363	trenergy[i] = 0.;
	364	for (Int_t j = 0; j < nentry; j++)
	365	{
	366	if (ipid[j] == 22 && itra[j] == itra[phentry[i]])
	367	{
	368	trenergy[i] += cadc[j];
	369	}
	370	}
	371	}
	372
	373	Bool_t jsort = true;
	374	TMath::Sort(ngtrack,trenergy,sortcoord,jsort);
	375
	376	Int_t gtr = sortcoord[0];
	377	trackno = itra[phentry[gtr]]; // highest adc track
	378	trackpid = 1;
	379
	380	delete [] trenergy;
381	delete [] sortcoord;
382
383	} // end of ngtrack > 1
384
385
386
7dcaf913	387	}
	388	//--------------------------------------------------------------------//
	389	void AliPMDtracker::SetVertex(Double_t vtx[3], Double_t evtx[3])
	390	{
	391	fXvertex = vtx[0];
	392	fYvertex = vtx[1];
	393	fZvertex = vtx[2];
	394	fSigmaX = evtx[0];
	395	fSigmaY = evtx[1];
	396	fSigmaZ = evtx[2];
	397	}
	398	//--------------------------------------------------------------------//
7dcaf913	399	void AliPMDtracker::ResetClusters()
	400	{
	401	if (fRecpoints) fRecpoints->Clear();
	402	}
	403	//--------------------------------------------------------------------//