[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 <TGeoMatrix.h>

#include "AliGeomManager.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 = 0;
  Int_t   ismn = 0;
  Int_t   trackno = 1, trackpid = 0;
  Float_t clusdata[6] = {0.,0.,0.,0.,0.,0.};
  
  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++)
		{
		  irow[ient1] = -99;
		  icol[ient1] = -99;
		  itra[ient1] = -99;
		  ipid[ient1] = -99;
		  cadc[ient1] = 0.;
		}
	      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++;
	    }
	}
    }

  AliPMDEmpDiscriminator pmddiscriminator;
  pmddiscriminator.Discrimination(fPMDcontin,fPMDcontout);

  // alignment implemention

  Double_t sectr[4][3] = { {0.,0.,0.},{0.,0.,0.},{0.,0.,0.},{0.,0.,0.}};
  TString snsector="PMD/Sector";
  TString symname;
  TGeoHMatrix gpmdor;
  
  for(Int_t isector=1; isector<=4; isector++)
    {
      symname = snsector;
      symname += isector;
      TGeoHMatrix *gpmdal = AliGeomManager::GetMatrix(symname);
      Double_t *tral = gpmdal->GetTranslation();

      AliGeomManager::GetOrigGlobalMatrix(symname, gpmdor);
      Double_t *tror = gpmdor.GetTranslation();
      
      for(Int_t ixyz=0; ixyz<3; ixyz++)
	{
	  sectr[isector-1][ixyz] = tral[ixyz] - tror[ixyz];
	}
    }

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

  Int_t   ix = -1, iy = -1;
  Int_t   det = 0, smn = 0, trno = 1, trpid = 0, mstat = 0;
  Float_t xpos = 0., ypos = 0.;
  Float_t adc = 0., ncell = 0., radx = 0., rady = 0.;
  Float_t xglobal = 0., yglobal = 0., zglobal = 0;
  Float_t pid = 0.;

  fPMDutil->ApplyAlignment(sectr);

  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();
      // Here in the variable "rady" we are keeping the row and col
      // of the single isolated cluster having ncell = 1 for offline
      // calibration
      
      if ((radx > 999. && radx < 1000.) && ncell == 1)
	{
	  if (smn < 12)
	    {
	      ix = (Int_t) (ypos +0.5);
	      iy = (Int_t) xpos;
	    }
	  else if (smn > 12 && smn < 24)
	    {
	      ix = (Int_t) xpos;
	      iy = (Int_t) (ypos +0.5);
	    }
	  rady = (Float_t) (ix*100 + iy);
	}
      else
	{
	  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)                          *
       **********************************************************************/
      //


      if (det == 0)
	{
	  zglobal = kzpos + 1.65; // PREshower plane
	}
      else if (det == 1)
	{
	  zglobal = kzpos - 1.65; // CPV plane
	}

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

      // 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);
      delete 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

  delete [] phentry;
  delete [] hadentry;
  
}
//--------------------------------------------------------------------//
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
32b0cad8	35	#include <TGeoMatrix.h>
	36
	37	#include "AliGeomManager.h"
	38
7dcaf913	39	#include "AliPMDcluster.h"
	40	#include "AliPMDclupid.h"
	41	#include "AliPMDrecpoint1.h"
b0e4d1e1	42	#include "AliPMDrecdata.h"
b0e4d1e1	43	#include "AliPMDrechit.h"
7dcaf913	44	#include "AliPMDUtility.h"
7dcaf913	45	#include "AliPMDDiscriminator.h"
26f1ae17	46	#include "AliPMDEmpDiscriminator.h"
7dcaf913	47	#include "AliPMDtracker.h"
	48
	49	#include "AliESDPmdTrack.h"
af885e0f	50	#include "AliESDEvent.h"
ecee2a1a	51	#include "AliLog.h"
7dcaf913	52
	53	ClassImp(AliPMDtracker)
	54
	55	AliPMDtracker::AliPMDtracker():
	56	fTreeR(0),
722ccc67	57	fRecpoints(new TClonesArray("AliPMDrecpoint1", 10)),
b0e4d1e1	58	fRechits(new TClonesArray("AliPMDrechit", 10)),
7dcaf913	59	fPMDcontin(new TObjArray()),
7dcaf913	60	fPMDcontout(new TObjArray()),
7dcaf913	61	fPMDutil(new AliPMDUtility()),
	62	fPMDrecpoint(0),
	63	fPMDclin(0),
	64	fPMDclout(0),
7dcaf913	65	fXvertex(0.),
	66	fYvertex(0.),
	67	fZvertex(0.),
	68	fSigmaX(0.),
	69	fSigmaY(0.),
	70	fSigmaZ(0.)
	71	{
	72	//
	73	// Default Constructor
	74	//
	75	}
a48edddd	76	//--------------------------------------------------------------------//
a48edddd	77	AliPMDtracker:: AliPMDtracker(const AliPMDtracker & /* tracker */):
2332574a	78	TObject(/* tracker */),
	79	fTreeR(0),
	80	fRecpoints(NULL),
b0e4d1e1	81	fRechits(NULL),
2332574a	82	fPMDcontin(NULL),
	83	fPMDcontout(NULL),
	84	fPMDutil(NULL),
	85	fPMDrecpoint(0),
	86	fPMDclin(0),
	87	fPMDclout(0),
	88	fXvertex(0.),
	89	fYvertex(0.),
	90	fZvertex(0.),
	91	fSigmaX(0.),
	92	fSigmaY(0.),
	93	fSigmaZ(0.)
a48edddd	94	{
	95	// copy constructor
	96	AliError("Copy constructor not allowed");
	97	}
	98
	99	//--------------------------------------------------------------------//
	100	AliPMDtracker& AliPMDtracker::operator=(const AliPMDtracker & /* tracker */)
	101	{
	102	// assignment operator
	103	AliError("Assignment operator not allowed");
	104	return *this;
	105	}
	106
7dcaf913	107	//--------------------------------------------------------------------//
	108	AliPMDtracker::~AliPMDtracker()
	109	{
	110	// Destructor
	111	if (fRecpoints)
	112	{
722ccc67	113	fRecpoints->Clear();
7dcaf913	114	}
b0e4d1e1	115	if (fRechits)
	116	{
	117	fRechits->Clear();
	118	}
	119
7dcaf913	120	if (fPMDcontin)
	121	{
	122	fPMDcontin->Delete();
	123	delete fPMDcontin;
	124	fPMDcontin=0;
a1e9ac09	125
7dcaf913	126	}
7dcaf913	127	if (fPMDcontout)
722ccc67	128	{
7dcaf913	129	fPMDcontout->Delete();
	130	delete fPMDcontout;
	131	fPMDcontout=0;
a1e9ac09	132
7dcaf913	133	}
316c6cd9	134	delete fPMDutil;
7dcaf913	135	}
	136	//--------------------------------------------------------------------//
	137	void AliPMDtracker::LoadClusters(TTree *treein)
	138	{
	139	// Load the Reconstructed tree
	140	fTreeR = treein;
	141	}
	142	//--------------------------------------------------------------------//
af885e0f	143	void AliPMDtracker::Clusters2Tracks(AliESDEvent *event)
7dcaf913	144	{
	145	// Converts digits to recpoints after running clustering
	146	// algorithm on CPV plane and PREshower plane
	147	//
	148
be8b7039	149	Int_t idet = 0;
	150	Int_t ismn = 0;
	151	Int_t trackno = 1, trackpid = 0;
	152	Float_t clusdata[6] = {0.,0.,0.,0.,0.,0.};
b0e4d1e1	153
	154	Int_t *irow;
	155	Int_t *icol;
	156	Int_t *itra;
	157	Int_t *ipid;
	158	Float_t *cadc;
	159
	160	AliPMDrechit *rechit = 0x0;
7dcaf913	161
7dcaf913	162	TBranch *branch = fTreeR->GetBranch("PMDRecpoint");
ecee2a1a	163	if (!branch)
	164	{
	165	AliError("PMDRecpoint branch not found");
	166	return;
	167	}
7dcaf913	168	branch->SetAddress(&fRecpoints);
b0e4d1e1	169
	170	TBranch *branch1 = fTreeR->GetBranch("PMDRechit");
	171	if (!branch1)
	172	{
	173	AliError("PMDRechit branch not found");
	174	return;
	175	}
	176	branch1->SetAddress(&fRechits);
d270ca46	177
d270ca46	178	Int_t ncrhit = 0;
26f1ae17	179	Int_t nmodules = (Int_t) branch->GetEntries();
26f1ae17	180
ecee2a1a	181	AliDebug(1,Form("Number of modules filled in treeR = %d",nmodules));
7dcaf913	182	for (Int_t imodule = 0; imodule < nmodules; imodule++)
7dcaf913	183	{
26f1ae17	184	branch->GetEntry(imodule);
7dcaf913	185	Int_t nentries = fRecpoints->GetLast();
ecee2a1a	186	AliDebug(2,Form("Number of clusters per modules filled in treeR = %d"
ecee2a1a	187	,nentries));
b0e4d1e1	188
7dcaf913	189	for(Int_t ient = 0; ient < nentries+1; ient++)
	190	{
	191	fPMDrecpoint = (AliPMDrecpoint1*)fRecpoints->UncheckedAt(ient);
	192	idet = fPMDrecpoint->GetDetector();
	193	ismn = fPMDrecpoint->GetSMNumber();
	194	clusdata[0] = fPMDrecpoint->GetClusX();
	195	clusdata[1] = fPMDrecpoint->GetClusY();
	196	clusdata[2] = fPMDrecpoint->GetClusADC();
	197	clusdata[3] = fPMDrecpoint->GetClusCells();
26f1ae17	198	clusdata[4] = fPMDrecpoint->GetClusSigmaX();
26f1ae17	199	clusdata[5] = fPMDrecpoint->GetClusSigmaY();
4b1e197e	200
e6ba3040	201	if (clusdata[4] >= 0. && clusdata[5] >= 0.)
920e13db	202	{
b0e4d1e1	203	// extract the associated cell information
	204	branch1->GetEntry(ncrhit);
	205	Int_t nenbr1 = fRechits->GetLast() + 1;
	206
	207	irow = new Int_t[nenbr1];
	208	icol = new Int_t[nenbr1];
	209	itra = new Int_t[nenbr1];
	210	ipid = new Int_t[nenbr1];
	211	cadc = new Float_t[nenbr1];
4b1e197e	212
db06ef51	213	for (Int_t ient1 = 0; ient1 < nenbr1; ient1++)
	214	{
	215	irow[ient1] = -99;
	216	icol[ient1] = -99;
	217	itra[ient1] = -99;
	218	ipid[ient1] = -99;
	219	cadc[ient1] = 0.;
	220	}
b0e4d1e1	221	for (Int_t ient1 = 0; ient1 < nenbr1; ient1++)
	222	{
	223	rechit = (AliPMDrechit*)fRechits->UncheckedAt(ient1);
	224	//irow[ient1] = rechit->GetCellX();
	225	//icol[ient1] = rechit->GetCellY();
	226	itra[ient1] = rechit->GetCellTrack();
	227	ipid[ient1] = rechit->GetCellPid();
	228	cadc[ient1] = rechit->GetCellAdc();
	229	}
4b1e197e	230	if (idet == 0)
	231	{
	232	AssignTrPidToCluster(nenbr1, itra, ipid, cadc,
	233	trackno, trackpid);
	234	}
	235	else if (idet == 1)
	236	{
	237	trackno = itra[0];
	238	trackpid = ipid[0];
	239	}
b0e4d1e1	240
	241	delete [] irow;
	242	delete [] icol;
	243	delete [] itra;
	244	delete [] ipid;
	245	delete [] cadc;
	246
	247	fPMDclin = new AliPMDrecdata(idet,ismn,trackno,trackpid,clusdata);
920e13db	248	fPMDcontin->Add(fPMDclin);
b0e4d1e1	249
b0e4d1e1	250	ncrhit++;
920e13db	251	}
7dcaf913	252	}
	253	}
	254
69c38808	255	AliPMDEmpDiscriminator pmddiscriminator;
69c38808	256	pmddiscriminator.Discrimination(fPMDcontin,fPMDcontout);
7dcaf913	257
32b0cad8	258	// alignment implemention
	259
	260	Double_t sectr[4][3] = { {0.,0.,0.},{0.,0.,0.},{0.,0.,0.},{0.,0.,0.}};
	261	TString snsector="PMD/Sector";
	262	TString symname;
	263	TGeoHMatrix gpmdor;
	264
	265	for(Int_t isector=1; isector<=4; isector++)
	266	{
	267	symname = snsector;
	268	symname += isector;
	269	TGeoHMatrix *gpmdal = AliGeomManager::GetMatrix(symname);
	270	Double_t *tral = gpmdal->GetTranslation();
	271
	272	AliGeomManager::GetOrigGlobalMatrix(symname, gpmdor);
	273	Double_t *tror = gpmdor.GetTranslation();
	274
	275	for(Int_t ixyz=0; ixyz<3; ixyz++)
	276	{
	277	sectr[isector-1][ixyz] = tral[ixyz] - tror[ixyz];
	278	}
	279	}
	280
50555ba1	281	const Float_t kzpos = 361.5; // middle of the PMD
01c4d84a	282
e38d8aee	283	Int_t ix = -1, iy = -1;
be8b7039	284	Int_t det = 0, smn = 0, trno = 1, trpid = 0, mstat = 0;
	285	Float_t xpos = 0., ypos = 0.;
	286	Float_t adc = 0., ncell = 0., radx = 0., rady = 0.;
01c4d84a	287	Float_t xglobal = 0., yglobal = 0., zglobal = 0;
be8b7039	288	Float_t pid = 0.;
7dcaf913	289
32b0cad8	290	fPMDutil->ApplyAlignment(sectr);
7dcaf913	291
7dcaf913	292	Int_t nentries2 = fPMDcontout->GetEntries();
ecee2a1a	293	AliDebug(1,Form("Number of clusters coming after discrimination = %d"
ecee2a1a	294	,nentries2));
7dcaf913	295	for (Int_t ient1 = 0; ient1 < nentries2; ient1++)
	296	{
	297	fPMDclout = (AliPMDclupid*)fPMDcontout->UncheckedAt(ient1);
	298
	299	det = fPMDclout->GetDetector();
	300	smn = fPMDclout->GetSMN();
b0e4d1e1	301	trno = fPMDclout->GetClusTrackNo();
	302	trpid = fPMDclout->GetClusTrackPid();
	303	mstat = fPMDclout->GetClusMatching();
7dcaf913	304	xpos = fPMDclout->GetClusX();
	305	ypos = fPMDclout->GetClusY();
	306	adc = fPMDclout->GetClusADC();
	307	ncell = fPMDclout->GetClusCells();
b0e4d1e1	308	radx = fPMDclout->GetClusSigmaX();
6db43724	309	// Here in the variable "rady" we are keeping the row and col
	310	// of the single isolated cluster having ncell = 1 for offline
	311	// calibration
	312
	313	if ((radx > 999. && radx < 1000.) && ncell == 1)
	314	{
	315	if (smn < 12)
	316	{
	317	ix = (Int_t) (ypos +0.5);
	318	iy = (Int_t) xpos;
	319	}
	320	else if (smn > 12 && smn < 24)
	321	{
	322	ix = (Int_t) xpos;
	323	iy = (Int_t) (ypos +0.5);
	324	}
	325	rady = (Float_t) (ix*100 + iy);
	326	}
	327	else
	328	{
	329	rady = fPMDclout->GetClusSigmaY();
	330	}
7dcaf913	331	pid = fPMDclout->GetClusPID();
7dcaf913	332
7dcaf913	333	//
	334	/**********************************************************************
	335	* det : Detector, 0: PRE & 1:CPV *
01c4d84a	336	* smn : Serial Module Number 0 to 23 for each plane *
7dcaf913	337	* xpos : x-position of the cluster *
	338	* ypos : y-position of the cluster *
	339	* THESE xpos & ypos are not the true xpos and ypos *
	340	* for some of the unit modules. They are rotated. *
	341	* adc : ADC contained in the cluster *
	342	* ncell : Number of cells contained in the cluster *
	343	* rad : radius of the cluster (1d fit) *
7dcaf913	344	**********************************************************************/
7dcaf913	345	//
01c4d84a	346
26f1ae17	347
	348	if (det == 0)
	349	{
dc461f61	350	zglobal = kzpos + 1.65; // PREshower plane
26f1ae17	351	}
	352	else if (det == 1)
	353	{
dc461f61	354	zglobal = kzpos - 1.65; // CPV plane
26f1ae17	355	}
26f1ae17	356
dc461f61	357	fPMDutil->RectGeomCellPos(smn,xpos,ypos,xglobal,yglobal,zglobal);
dc461f61	358
7dcaf913	359	// Fill ESD
	360
	361	AliESDPmdTrack *esdpmdtr = new AliESDPmdTrack();
	362
	363	esdpmdtr->SetDetector(det);
c6f4d28b	364	esdpmdtr->SetSmn(smn);
	365	esdpmdtr->SetClusterTrackNo(trno);
	366	esdpmdtr->SetClusterTrackPid(trpid);
	367	esdpmdtr->SetClusterMatching(mstat);
	368
26f1ae17	369	esdpmdtr->SetClusterX(xglobal);
	370	esdpmdtr->SetClusterY(yglobal);
	371	esdpmdtr->SetClusterZ(zglobal);
7dcaf913	372	esdpmdtr->SetClusterADC(adc);
26f1ae17	373	esdpmdtr->SetClusterCells(ncell);
7dcaf913	374	esdpmdtr->SetClusterPID(pid);
c6f4d28b	375	esdpmdtr->SetClusterSigmaX(radx);
c6f4d28b	376	esdpmdtr->SetClusterSigmaY(rady);
7dcaf913	377
7dcaf913	378	event->AddPmdTrack(esdpmdtr);
69c38808	379	delete esdpmdtr;
7dcaf913	380	}
a1e9ac09	381
	382	fPMDcontin->Delete();
	383	fPMDcontout->Delete();
	384
b0e4d1e1	385	}
	386	//--------------------------------------------------------------------//
	387	void AliPMDtracker::AssignTrPidToCluster(Int_t nentry, Int_t *itra,
	388	Int_t ipid, Float_t cadc,
	389	Int_t &trackno, Int_t &trackpid)
	390	{
	391	// assign the track number and the corresponding pid to a cluster
	392	// split cluster part will be done at the time of calculating eff/pur
	393
	394	Int_t *phentry = new Int_t [nentry];
a6621fb4	395	Int_t *hadentry = new Int_t [nentry];
b0e4d1e1	396	Int_t *trenergy = 0x0;
a6621fb4	397	Int_t *trpid = 0x0;
b0e4d1e1	398	Int_t *sortcoord = 0x0;
	399
	400	Int_t ngtrack = 0;
a6621fb4	401	Int_t nhtrack = 0;
b0e4d1e1	402	for (Int_t i = 0; i < nentry; i++)
	403	{
	404	phentry[i] = -1;
a6621fb4	405	hadentry[i] = -1;
a6621fb4	406
b0e4d1e1	407	if (ipid[i] == 22)
	408	{
	409	phentry[ngtrack] = i;
	410	ngtrack++;
	411	}
a6621fb4	412	else if (ipid[i] != 22)
	413	{
	414	hadentry[nhtrack] = i;
	415	nhtrack++;
	416	}
b0e4d1e1	417	}
4b1e197e	418
a6621fb4	419	Int_t nghadtrack = ngtrack + nhtrack;
a6621fb4	420
b0e4d1e1	421	if (ngtrack == 0)
	422	{
	423	// hadron track
	424	// no need of track number, set to -1
	425	trackpid = 8;
	426	trackno = -1;
	427	}
a6621fb4	428	else if (ngtrack >= 1)
b0e4d1e1	429	{
a6621fb4	430	// one or more than one photon track + charged track
	431	// find out which track deposits maximum energy and
	432	// assign that track number and track pid
	433
	434	trenergy = new Int_t [nghadtrack];
	435	trpid = new Int_t [nghadtrack];
	436	sortcoord = new Int_t [nghadtrack];
b0e4d1e1	437	for (Int_t i = 0; i < ngtrack; i++)
	438	{
	439	trenergy[i] = 0.;
a6621fb4	440	trpid[i] = -1;
b0e4d1e1	441	for (Int_t j = 0; j < nentry; j++)
	442	{
	443	if (ipid[j] == 22 && itra[j] == itra[phentry[i]])
	444	{
	445	trenergy[i] += cadc[j];
a6621fb4	446	trpid[i] = 22;
	447	}
	448	}
	449	}
	450	for (Int_t i = ngtrack; i < nghadtrack; i++)
	451	{
	452	trenergy[i] = 0.;
	453	trpid[i] = -1;
	454	for (Int_t j = 0; j < nentry; j++)
	455	{
	456	if (ipid[j] != 22 && itra[j] == itra[hadentry[i-ngtrack]])
	457	{
	458	trenergy[i] += cadc[j];
	459	trpid[i] = ipid[j];
b0e4d1e1	460	}
	461	}
	462	}
4b1e197e	463
b0e4d1e1	464	Bool_t jsort = true;
a6621fb4	465	TMath::Sort(nghadtrack,trenergy,sortcoord,jsort);
4b1e197e	466
b0e4d1e1	467	Int_t gtr = sortcoord[0];
a6621fb4	468	if (trpid[gtr] == 22)
	469	{
	470	trackpid = 22;
	471	trackno = itra[phentry[gtr]]; // highest adc track
	472	}
	473	else
	474	{
	475	trackpid = 8;
	476	trackno = -1;
	477	}
4b1e197e	478
b0e4d1e1	479	delete [] trenergy;
a6621fb4	480	delete [] trpid;
b0e4d1e1	481	delete [] sortcoord;
4b1e197e	482
a6621fb4	483	} // end of ngtrack >= 1
db06ef51	484
	485	delete [] phentry;
	486	delete [] hadentry;
4b1e197e	487
7dcaf913	488	}
	489	//--------------------------------------------------------------------//
	490	void AliPMDtracker::SetVertex(Double_t vtx[3], Double_t evtx[3])
	491	{
	492	fXvertex = vtx[0];
	493	fYvertex = vtx[1];
	494	fZvertex = vtx[2];
	495	fSigmaX = evtx[0];
	496	fSigmaY = evtx[1];
	497	fSigmaZ = evtx[2];
	498	}
	499	//--------------------------------------------------------------------//
7dcaf913	500	void AliPMDtracker::ResetClusters()
	501	{
	502	if (fRecpoints) fRecpoints->Clear();
	503	}
	504	//--------------------------------------------------------------------//