[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();
		}
	      if (idet == 0)
		{
		  AssignTrPidToCluster(nenbr1, itra, ipid, cadc,
				       trackno, trackpid);
		}
	      else if (idet == 1)
		{
		  trackno  = itra[0];
		  trackpid = ipid[0];
		}

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

  Int_t ngtrack = 0;
  Int_t nhtrack = 0;
  for (Int_t i = 0; i < nentry; i++)
    {
      phentry[i] = -1;
      hadentry[i] = -1;

      if (ipid[i] == 22)
	{
	  phentry[ngtrack] = i;
	  ngtrack++;
	}
      else if (ipid[i] != 22)
	{
	  hadentry[nhtrack] = i;
	  nhtrack++;
	}
    }
  
  Int_t nghadtrack = ngtrack + nhtrack;

  if (ngtrack == 0)
    {
      // hadron track
      // no need of track number, set to -1
      trackpid = 8;
      trackno  = -1;
    }
  else if (ngtrack >= 1)
    {
      // one or more than one photon track + charged track
      // find out which track deposits maximum energy and
      // assign that track number and track pid

      trenergy  = new Int_t [nghadtrack];
      trpid     = new Int_t [nghadtrack];
      sortcoord = new Int_t [nghadtrack];
      for (Int_t i = 0; i < ngtrack; i++)
	{
	  trenergy[i] = 0.;
	  trpid[i]    = -1;
	  for (Int_t j = 0; j < nentry; j++)
	    {
	      if (ipid[j] == 22 && itra[j] == itra[phentry[i]])
		{
		  trenergy[i] += cadc[j];
		  trpid[i]     = 22;
		}
	    }
	}
      for (Int_t i = ngtrack; i < nghadtrack; i++)
	{
	  trenergy[i] = 0.;
	  trpid[i]    = -1;
	  for (Int_t j = 0; j < nentry; j++)
	    {
	      if (ipid[j] != 22 && itra[j] == itra[hadentry[i-ngtrack]])
		{
		  trenergy[i] += cadc[j];
		  trpid[i]     = ipid[j];
		}
	    }
	}
      
      Bool_t jsort = true;
      TMath::Sort(nghadtrack,trenergy,sortcoord,jsort);
      
      Int_t gtr = sortcoord[0];   
      if (trpid[gtr] == 22)
	{
	  trackpid = 22;
	  trackno  = itra[phentry[gtr]];   // highest adc track
	}
      else
	{
	  trackpid = 8;
	  trackno = -1;
	}
      
      delete [] trenergy;
      delete [] trpid;
      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();
4b1e197e	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];
4b1e197e	208
b0e4d1e1	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	}
4b1e197e	218	if (idet == 0)
	219	{
	220	AssignTrPidToCluster(nenbr1, itra, ipid, cadc,
	221	trackno, trackpid);
	222	}
	223	else if (idet == 1)
	224	{
	225	trackno = itra[0];
	226	trackpid = ipid[0];
	227	}
b0e4d1e1	228
	229	delete [] irow;
	230	delete [] icol;
	231	delete [] itra;
	232	delete [] ipid;
	233	delete [] cadc;
	234
	235	fPMDclin = new AliPMDrecdata(idet,ismn,trackno,trackpid,clusdata);
920e13db	236	fPMDcontin->Add(fPMDclin);
b0e4d1e1	237
b0e4d1e1	238	ncrhit++;
920e13db	239	}
7dcaf913	240	}
	241	}
	242
26f1ae17	243	AliPMDDiscriminator *pmddiscriminator = new AliPMDEmpDiscriminator();
26f1ae17	244	pmddiscriminator->Discrimination(fPMDcontin,fPMDcontout);
7dcaf913	245
50555ba1	246	const Float_t kzpos = 361.5; // middle of the PMD
01c4d84a	247
b0e4d1e1	248	Int_t det,smn,trno,trpid,mstat;
7dcaf913	249	Float_t xpos,ypos;
b0e4d1e1	250	Float_t adc, ncell, radx, rady;
01c4d84a	251	Float_t xglobal = 0., yglobal = 0., zglobal = 0;
7dcaf913	252	Float_t pid;
7dcaf913	253
7dcaf913	254
7dcaf913	255	Int_t nentries2 = fPMDcontout->GetEntries();
ecee2a1a	256	AliDebug(1,Form("Number of clusters coming after discrimination = %d"
ecee2a1a	257	,nentries2));
7dcaf913	258	for (Int_t ient1 = 0; ient1 < nentries2; ient1++)
	259	{
	260	fPMDclout = (AliPMDclupid*)fPMDcontout->UncheckedAt(ient1);
	261
	262	det = fPMDclout->GetDetector();
	263	smn = fPMDclout->GetSMN();
b0e4d1e1	264	trno = fPMDclout->GetClusTrackNo();
	265	trpid = fPMDclout->GetClusTrackPid();
	266	mstat = fPMDclout->GetClusMatching();
7dcaf913	267	xpos = fPMDclout->GetClusX();
	268	ypos = fPMDclout->GetClusY();
	269	adc = fPMDclout->GetClusADC();
	270	ncell = fPMDclout->GetClusCells();
b0e4d1e1	271	radx = fPMDclout->GetClusSigmaX();
b0e4d1e1	272	rady = fPMDclout->GetClusSigmaY();
7dcaf913	273	pid = fPMDclout->GetClusPID();
7dcaf913	274
7dcaf913	275	//
	276	/**********************************************************************
	277	* det : Detector, 0: PRE & 1:CPV *
01c4d84a	278	* smn : Serial Module Number 0 to 23 for each plane *
7dcaf913	279	* xpos : x-position of the cluster *
	280	* ypos : y-position of the cluster *
	281	* THESE xpos & ypos are not the true xpos and ypos *
	282	* for some of the unit modules. They are rotated. *
	283	* adc : ADC contained in the cluster *
	284	* ncell : Number of cells contained in the cluster *
	285	* rad : radius of the cluster (1d fit) *
7dcaf913	286	**********************************************************************/
7dcaf913	287	//
01c4d84a	288
01c4d84a	289	fPMDutil->RectGeomCellPos(smn,xpos,ypos,xglobal,yglobal);
26f1ae17	290
	291	if (det == 0)
	292	{
50555ba1	293	zglobal = kzpos + 1.6; // PREshower plane
26f1ae17	294	}
	295	else if (det == 1)
	296	{
50555ba1	297	zglobal = kzpos - 1.7; // CPV plane
26f1ae17	298	}
26f1ae17	299
7dcaf913	300	// Fill ESD
	301
	302	AliESDPmdTrack *esdpmdtr = new AliESDPmdTrack();
	303
	304	esdpmdtr->SetDetector(det);
c6f4d28b	305	esdpmdtr->SetSmn(smn);
	306	esdpmdtr->SetClusterTrackNo(trno);
	307	esdpmdtr->SetClusterTrackPid(trpid);
	308	esdpmdtr->SetClusterMatching(mstat);
	309
26f1ae17	310	esdpmdtr->SetClusterX(xglobal);
	311	esdpmdtr->SetClusterY(yglobal);
	312	esdpmdtr->SetClusterZ(zglobal);
7dcaf913	313	esdpmdtr->SetClusterADC(adc);
26f1ae17	314	esdpmdtr->SetClusterCells(ncell);
7dcaf913	315	esdpmdtr->SetClusterPID(pid);
c6f4d28b	316	esdpmdtr->SetClusterSigmaX(radx);
c6f4d28b	317	esdpmdtr->SetClusterSigmaY(rady);
7dcaf913	318
	319	event->AddPmdTrack(esdpmdtr);
	320	}
a1e9ac09	321
	322	fPMDcontin->Delete();
	323	fPMDcontout->Delete();
	324
b0e4d1e1	325	}
	326	//--------------------------------------------------------------------//
	327	void AliPMDtracker::AssignTrPidToCluster(Int_t nentry, Int_t *itra,
	328	Int_t ipid, Float_t cadc,
	329	Int_t &trackno, Int_t &trackpid)
	330	{
	331	// assign the track number and the corresponding pid to a cluster
	332	// split cluster part will be done at the time of calculating eff/pur
	333
	334	Int_t *phentry = new Int_t [nentry];
a6621fb4	335	Int_t *hadentry = new Int_t [nentry];
b0e4d1e1	336	Int_t *trenergy = 0x0;
a6621fb4	337	Int_t *trpid = 0x0;
b0e4d1e1	338	Int_t *sortcoord = 0x0;
	339
	340	Int_t ngtrack = 0;
a6621fb4	341	Int_t nhtrack = 0;
b0e4d1e1	342	for (Int_t i = 0; i < nentry; i++)
	343	{
	344	phentry[i] = -1;
a6621fb4	345	hadentry[i] = -1;
a6621fb4	346
b0e4d1e1	347	if (ipid[i] == 22)
	348	{
	349	phentry[ngtrack] = i;
	350	ngtrack++;
	351	}
a6621fb4	352	else if (ipid[i] != 22)
	353	{
	354	hadentry[nhtrack] = i;
	355	nhtrack++;
	356	}
b0e4d1e1	357	}
4b1e197e	358
a6621fb4	359	Int_t nghadtrack = ngtrack + nhtrack;
a6621fb4	360
b0e4d1e1	361	if (ngtrack == 0)
	362	{
	363	// hadron track
	364	// no need of track number, set to -1
	365	trackpid = 8;
	366	trackno = -1;
	367	}
a6621fb4	368	else if (ngtrack >= 1)
b0e4d1e1	369	{
a6621fb4	370	// one or more than one photon track + charged track
	371	// find out which track deposits maximum energy and
	372	// assign that track number and track pid
	373
	374	trenergy = new Int_t [nghadtrack];
	375	trpid = new Int_t [nghadtrack];
	376	sortcoord = new Int_t [nghadtrack];
b0e4d1e1	377	for (Int_t i = 0; i < ngtrack; i++)
	378	{
	379	trenergy[i] = 0.;
a6621fb4	380	trpid[i] = -1;
b0e4d1e1	381	for (Int_t j = 0; j < nentry; j++)
	382	{
	383	if (ipid[j] == 22 && itra[j] == itra[phentry[i]])
	384	{
	385	trenergy[i] += cadc[j];
a6621fb4	386	trpid[i] = 22;
	387	}
	388	}
	389	}
	390	for (Int_t i = ngtrack; i < nghadtrack; i++)
	391	{
	392	trenergy[i] = 0.;
	393	trpid[i] = -1;
	394	for (Int_t j = 0; j < nentry; j++)
	395	{
	396	if (ipid[j] != 22 && itra[j] == itra[hadentry[i-ngtrack]])
	397	{
	398	trenergy[i] += cadc[j];
	399	trpid[i] = ipid[j];
b0e4d1e1	400	}
	401	}
	402	}
4b1e197e	403
b0e4d1e1	404	Bool_t jsort = true;
a6621fb4	405	TMath::Sort(nghadtrack,trenergy,sortcoord,jsort);
4b1e197e	406
b0e4d1e1	407	Int_t gtr = sortcoord[0];
a6621fb4	408	if (trpid[gtr] == 22)
	409	{
	410	trackpid = 22;
	411	trackno = itra[phentry[gtr]]; // highest adc track
	412	}
	413	else
	414	{
	415	trackpid = 8;
	416	trackno = -1;
	417	}
4b1e197e	418
b0e4d1e1	419	delete [] trenergy;
a6621fb4	420	delete [] trpid;
b0e4d1e1	421	delete [] sortcoord;
4b1e197e	422
a6621fb4	423	} // end of ngtrack >= 1
4b1e197e	424
7dcaf913	425	}
	426	//--------------------------------------------------------------------//
	427	void AliPMDtracker::SetVertex(Double_t vtx[3], Double_t evtx[3])
	428	{
	429	fXvertex = vtx[0];
	430	fYvertex = vtx[1];
	431	fZvertex = vtx[2];
	432	fSigmaX = evtx[0];
	433	fSigmaY = evtx[1];
	434	fSigmaZ = evtx[2];
	435	}
	436	//--------------------------------------------------------------------//
7dcaf913	437	void AliPMDtracker::ResetClusters()
	438	{
	439	if (fRecpoints) fRecpoints->Clear();
	440	}
	441	//--------------------------------------------------------------------//