[u/mrichter/AliRoot.git] / PWG1 / AliESDRecInfo.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.                  *
 **************************************************************************/


///////////////////////////////////////////////////////////////////////////////
//                                                                           //
//  Time Projection Chamber                                                  //
//  Comparison macro for reconstructed tracks                                  //
//  responsible: 
//  marian.ivanov@cern.ch                                                    //
//
//

 
//ROOT includes
#include "Rtypes.h"
//
//ALIROOT includes
//
#include "AliESDtrack.h"
#include "AliTracker.h"
#include "AliTPCParam.h"
#include "AliTrackReference.h"
#include "AliTPCParamSR.h"
#include "AliESDfriend.h"
#include "AliESDtrack.h"
#include "AliTPCseed.h"
#include "AliITStrackMI.h"
#include "AliTRDtrack.h"
#include "AliMCInfo.h"
#include "AliESDRecInfo.h"


ClassImp(AliESDRecInfo)


AliTPCParam * GetTPCParam(){
  AliTPCParamSR * par = new AliTPCParamSR;
  par->Update();
  return par;
}


AliESDRecInfo::AliESDRecInfo(): 
  fITSOn(0),           // ITS refitted inward
  fTRDOn(0),           // ITS refitted inward
  fDeltaP(0),          //delta of momenta
  fSign(0),           // sign
  fReconstructed(0),         //flag if track was reconstructed
  fFake(0),             // fake track
  fMultiple(0),         // number of reconstructions
  fTPCOn(0),           // TPC refitted inward
  fBestTOFmatch(0),        //best matching between times
  fESDtrack(0),        // esd track
  fTrackF(0),      // friend track
  fTPCtrack(0),        // tpc track
  fITStrack(0),        // its track
  fTRDtrack(0),        // trd track  
  fTPCtrackAtVertex(0) // tpc track propagated to the vertex  
{
  //
  //  default constructor
  //
}


AliESDRecInfo::AliESDRecInfo(const AliESDRecInfo& recinfo):
  TObject(),
  fITSOn(0),           // ITS refitted inward
  fTRDOn(0),           // ITS refitted inward
  fDeltaP(0),          //delta of momenta
  fSign(0),           // sign
  fReconstructed(0),         //flag if track was reconstructed
  fFake(0),             // fake track
  fMultiple(0),         // number of reconstructions
  fTPCOn(0),           // TPC refitted inward
  fBestTOFmatch(0),        //best matching between times
  fESDtrack(0),        // esd track
  fTrackF(0),      // friend track
  fTPCtrack(0),        // tpc track
  fITStrack(0),        // its track
  fTRDtrack(0),        // trd track  
  fTPCtrackAtVertex(0) // tpc track propagated to the vertex  
{
  //
  //
  //
  memcpy(this,&recinfo, sizeof(recinfo));
  fESDtrack=0; fTrackF=0; fTPCtrack=0;fITStrack=0;fTRDtrack=0;
  SetESDtrack(recinfo.GetESDtrack());
}


AliESDRecInfo& AliESDRecInfo::operator=(const AliESDRecInfo& info) { 
  //
  // Assignment operator
  //
  delete this;
  new (this) AliESDRecInfo(info);
  return *this;
}


AliESDRecInfo::~AliESDRecInfo()

{
  //
  //  destructor
  //
  if (fESDtrack) { delete fESDtrack; fESDtrack=0;}
  if (fTrackF)   { delete fTrackF;   fTrackF=0;}
  if (fTPCtrack) { delete fTPCtrack; fTPCtrack=0;}
  if (fITStrack) { delete fITStrack; fITStrack=0;}
  if (fTRDtrack) { delete fTRDtrack; fTRDtrack=0;}

}


void AliESDRecInfo::Reset()
{
  //
  // reset info
  //
  fMultiple =0; 
  fFake     =0;
  fReconstructed=0;
  if (fESDtrack) { delete fESDtrack; fESDtrack=0;}
  if (fTrackF)   { delete fTrackF;   fTrackF=0;}
  if (fTPCtrack) { delete fTPCtrack; fTPCtrack=0;}
  if (fITStrack) { delete fITStrack; fITStrack=0;}
  if (fTRDtrack) { delete fTRDtrack; fTRDtrack=0;}
} 

void AliESDRecInfo::SetESDtrack(const AliESDtrack *track){
  //
  // 
  //
  if (fESDtrack) delete fESDtrack;
  fESDtrack = (AliESDtrack*)track->Clone();
  if (0 &&track->GetFriendTrack()){
    if (fTrackF) delete fTrackF;
    fTrackF = (AliESDfriendTrack*)track->GetFriendTrack()->Clone();
    if (fTrackF->GetCalibObject(0)){
      if (fTPCtrack) delete fTPCtrack;
      fTPCtrack = (AliTPCseed*)fTrackF->GetCalibObject(0)->Clone();
    }
  }
  
}

void  AliESDRecInfo::UpdatePoints(AliESDtrack*track)
{
  //
  //
  Int_t iclusters[200];
  Float_t density[160];
  for (Int_t i=0;i<160;i++) density[i]=-1.;
  fTPCPoints[0]= 160;
  fTPCPoints[1] = -1;
  //
  if (fTPCPoints[0]<fTPCPoints[1]) return;
  //  Int_t nclusters=track->GetTPCclusters(iclusters);

  Int_t ngood=0;
  Int_t undeff=0;
  Int_t nall =0;
  Int_t range=20;
  for (Int_t i=0;i<160;i++){
    Int_t last = i-range;
    if (nall<range) nall++;
    if (last>=0){
      if (iclusters[last]>0&& (iclusters[last]&0x8000)==0) ngood--;
      if (iclusters[last]==-1) undeff--;
    }
    if (iclusters[i]>0&& (iclusters[i]&0x8000)==0)   ngood++;
    if (iclusters[i]==-1) undeff++;
    if (nall==range &&undeff<range/2) density[i-range/2] = Float_t(ngood)/Float_t(nall-undeff);
  }
  Float_t maxdens=0;
  Int_t indexmax =0;
  for (Int_t i=0;i<160;i++){
    if (density[i]<0) continue;
    if (density[i]>maxdens){
      maxdens=density[i];
      indexmax=i;
    }
  }
  //
  //max dens point
  fTPCPoints[3] = maxdens;
  fTPCPoints[1] = indexmax;
  //
  // last point
  for (Int_t i=indexmax;i<160;i++){
    if (density[i]<0) continue;
    if (density[i]<maxdens/2.) {
      break;
    }
    fTPCPoints[2]=i;
  }
  //
  // first point
  for (Int_t i=indexmax;i>0;i--){
    if (density[i]<0) continue;
    if (density[i]<maxdens/2.) {
      break;
    }
    fTPCPoints[0]=i;
  }
  //
  // Density at the last 30 padrows
  //
  // 
  nall  = 0;
  ngood = 0;
  for (Int_t i=159;i>0;i--){
    if (iclusters[i]==-1) continue; //dead zone
    nall++;
    if (iclusters[i]>0)   ngood++;
    if (nall>20) break;
  }
  fTPCPoints[4] = Float_t(ngood)/Float_t(nall);
  //
  if ((track->GetStatus()&AliESDtrack::kITSrefit)>0) fTPCPoints[0]=-1;


}

//
//
void AliESDRecInfo::Update(AliMCInfo* info,AliTPCParam * /*par*/, Bool_t reconstructed)
{
  //
  //calculates derived variables
  //  
  UpdatePoints(fESDtrack);
  UpdateStatus(info,reconstructed);
  UpdateITS(info);
  UpdateTPC(info);
  UpdateTOF(info);
}


void  AliESDRecInfo::UpdateStatus(AliMCInfo* info, Bool_t reconstructed){
  //
  // Interpret bit mask flags
  //
  for (Int_t i=0;i<4;i++) fStatus[i] =0;
  fReconstructed = kFALSE;
  fTPCOn = kFALSE;
  fITSOn = kFALSE;
  fTRDOn = kFALSE;  
  if (reconstructed==kFALSE) return;

  fLabels[0] = info->fLabel;
  fLabels[1] = info->fPrimPart;
  fReconstructed = kTRUE;
  fTPCOn = ((fESDtrack->GetStatus()&AliESDtrack::kTPCrefit)>0) ? kTRUE : kFALSE;
  fITSOn = ((fESDtrack->GetStatus()&AliESDtrack::kITSrefit)>0) ? kTRUE : kFALSE;
  fTRDOn = ((fESDtrack->GetStatus()&AliESDtrack::kTRDrefit)>0) ? kTRUE : kFALSE;
  //
  //  
  if ((fESDtrack->GetStatus()&AliESDtrack::kTPCrefit)>0){
    fStatus[1] =3;
  }
  else{
    if ((fESDtrack->GetStatus()&AliESDtrack::kTPCout)>0){
      fStatus[1] =2;
    }
    else{
      if ((fESDtrack->GetStatus()&AliESDtrack::kTPCin)>0)
	fStatus[1]=1;
    }      
  }
  //
  if ((fESDtrack->GetStatus()&AliESDtrack::kITSout)>0){
    fStatus[0] =2;
  }
  else{
    if ((fESDtrack->GetStatus()&AliESDtrack::kITSrefit)>0){
      fStatus[0] =1;
    }
    else{
      fStatus[0]=0;
    }      
  }
  //
  //
  if ((fESDtrack->GetStatus()&AliESDtrack::kTRDrefit)>0){
    fStatus[2] =2;
  }
  else{
    if ((fESDtrack->GetStatus()&AliESDtrack::kTRDout)>0){
      fStatus[2] =1;
    }
  }
  if ((fESDtrack->GetStatus()&AliESDtrack::kTRDStop)>0){
    fStatus[2] =10;
  }   
}

void AliESDRecInfo::UpdateTOF(AliMCInfo* info){
  //
  // Update TOF related comparison information
  //
  fBestTOFmatch=1000;
  if (((fESDtrack->GetStatus()&AliESDtrack::kTOFout)>0)){
    //
    // best tof match
    Double_t times[5];
    fESDtrack->GetIntegratedTimes(times);    
    for (Int_t i=0;i<5;i++){
      if ( TMath::Abs(fESDtrack->GetTOFsignal()-times[i]) <TMath::Abs(fBestTOFmatch) ){
	fBestTOFmatch = fESDtrack->GetTOFsignal()-times[i];
      }
    }
    Int_t toflabel[3];
    fESDtrack->GetTOFLabel(toflabel);
    Bool_t toffake=kTRUE;
    Bool_t tofdaughter=kFALSE;
    for (Int_t i=0;i<3;i++){
      if (toflabel[i]<0) continue;      
      if (toflabel[i]== TMath::Abs(fESDtrack->GetLabel()))  toffake=kFALSE;	
      if (toflabel[i]==info->fParticle.GetDaughter(0) || (toflabel[i]==info->fParticle.GetDaughter(1))) tofdaughter=kTRUE;  // decay product of original particle
      fStatus[3]=1;
    }
    if (toffake) fStatus[3] =3;       //total fake
    if (tofdaughter) fStatus[3]=2;    //fake because of decay
  }else{
    fStatus[3]=0;
  }
}


void AliESDRecInfo::UpdateITS(AliMCInfo* info){
  //
  // Update ITS related comparison information
  //
  fITSinP0[0]=info->fParticle.Px();
  fITSinP0[1]=info->fParticle.Py();
  fITSinP0[2]=info->fParticle.Pz();
  fITSinP0[3]=info->fParticle.Pt();    
  //
  fITSinR0[0]=info->fParticle.Vx();
  fITSinR0[1]=info->fParticle.Vy();
  fITSinR0[2]=info->fParticle.Vz();
  fITSinR0[3] = TMath::Sqrt(fITSinR0[0]*fITSinR0[0]+fITSinR0[1]*fITSinR0[1]);
  fITSinR0[4] = TMath::ATan2(fITSinR0[1],fITSinR0[0]);
  //
  //
  if (fITSinP0[3]>0.0000001){
    fITSAngle0[0] = TMath::ATan2(fITSinP0[1],fITSinP0[0]);
    fITSAngle0[1] = TMath::ATan(fITSinP0[2]/fITSinP0[3]);
  }
  if (fITSOn){
    // ITS 
    Double_t param[5],x;
    fESDtrack->GetExternalParameters(x,param);   
    //    fESDtrack->GetConstrainedExternalParameters(x,param);   
    Double_t cov[15];
    fESDtrack->GetExternalCovariance(cov);
    //fESDtrack->GetConstrainedExternalCovariance(cov);
    if (TMath::Abs(param[4])<0.0000000001) return;
    
    fESDtrack->GetXYZ(fITSinR1);
    fESDtrack->GetPxPyPz(fITSinP1);
    fITSinP1[3] = TMath::Sqrt(fITSinP1[0]*fITSinP1[0]+fITSinP1[1]*fITSinP1[1]);
    //
    fITSinR1[3] = TMath::Sqrt(fITSinR1[0]*fITSinR1[0]+fITSinR1[1]*fITSinR1[1]);
    fITSinR1[4] = TMath::ATan2(fITSinR1[1],fITSinR1[0]);
    //
    //
    if (fITSinP1[3]>0.0000001){
      fITSAngle1[0] = TMath::ATan2(fITSinP1[1],fITSinP1[0]);
      fITSAngle1[1] = TMath::ATan(fITSinP1[2]/fITSinP1[3]);  
    }
    //
    //
    fITSDelta[0] = (fITSinR0[4]-fITSinR1[4])*fITSinR1[3];  //delta rfi
    fITSPools[0] = fITSDelta[0]/TMath::Sqrt(cov[0]);
    fITSDelta[1] = (fITSinR0[2]-fITSinR1[2]);              //delta z
    fITSPools[1] = fITSDelta[1]/TMath::Sqrt(cov[2]);
    fITSDelta[2] = (fITSAngle0[0]-fITSAngle1[0]);
    fITSPools[2] = fITSDelta[2]/TMath::Sqrt(cov[5]);
    fITSDelta[3] = (TMath::Tan(fITSAngle0[1])-TMath::Tan(fITSAngle1[1]));
    fITSPools[3] = fITSDelta[3]/TMath::Sqrt(cov[9]);
    fITSDelta[4] = (fITSinP0[3]-fITSinP1[3]);    
    Double_t sign = (param[4]>0) ? 1:-1; 
    fSign = sign;
    fITSPools[4] = sign*(1./fITSinP0[3]-1./fITSinP1[3])/TMath::Sqrt(cov[14]);
  }
}

void AliESDRecInfo::UpdateTPC(AliMCInfo* info){
  //
  //
  // Update TPC related information
  //
  AliTrackReference * ref = &(info->fTrackRef);
  fTPCinR0[0] = info->fTrackRef.X();	
  fTPCinR0[1] = info->fTrackRef.Y();	
  fTPCinR0[2] = info->fTrackRef.Z();
  fTPCinR0[3] = TMath::Sqrt(fTPCinR0[0]*fTPCinR0[0]+fTPCinR0[1]*fTPCinR0[1]);
  fTPCinR0[4] = TMath::ATan2(fTPCinR0[1],fTPCinR0[0]);
  //
  fTPCinP0[0] = ref->Px();
  fTPCinP0[1] = ref->Py();
  fTPCinP0[2] = ref->Pz();
  fTPCinP0[3] = ref->Pt();
  fTPCinP0[4] = ref->P();
  fDeltaP     = (ref->P()-info->fParticle.P())/info->fParticle.P();
  //
  //
  if (fTPCinP0[3]>0.0000001){
    //
    fTPCAngle0[0] = TMath::ATan2(fTPCinP0[1],fTPCinP0[0]);
    fTPCAngle0[1] = TMath::ATan(fTPCinP0[2]/fTPCinP0[3]);
  }
  //
  if (fStatus[1]>0 &&info->fNTPCRef>0&&TMath::Abs(fTPCinP0[3])>0.0001){
    //TPC
    fESDtrack->GetInnerXYZ(fTPCinR1);
    fTPCinR1[3] = TMath::Sqrt(fTPCinR1[0]*fTPCinR1[0]+fTPCinR1[1]*fTPCinR1[1]);
    fTPCinR1[4] = TMath::ATan2(fTPCinR1[1],fTPCinR1[0]);	
    fESDtrack->GetInnerPxPyPz(fTPCinP1);
    fTPCinP1[3] = TMath::Sqrt(fTPCinP1[0]*fTPCinP1[0]+fTPCinP1[1]*fTPCinP1[1]);
    fTPCinP1[4] = TMath::Sqrt(fTPCinP1[3]*fTPCinP1[3]+fTPCinP1[2]*fTPCinP1[2]);
    //
    //
    if (fTPCinP1[3]>0.000000000000001){
      fTPCAngle1[0] = TMath::ATan2(fTPCinP1[1],fTPCinP1[0]);
      fTPCAngle1[1] = TMath::ATan(fTPCinP1[2]/fTPCinP1[3]);  
    }    
    Double_t cov[15], param[5],x, alpha;
    fESDtrack->GetInnerExternalCovariance(cov);
    fESDtrack->GetInnerExternalParameters(alpha, x,param);
    if (x<50) return ;
    //
    fTPCDelta[0] = (fTPCinR0[4]-fTPCinR1[4])*fTPCinR1[3];  //delta rfi
    fTPCPools[0] = fTPCDelta[0]/TMath::Sqrt(cov[0]);
    fTPCDelta[1] = (fTPCinR0[2]-fTPCinR1[2]);              //delta z
    fTPCPools[1] = fTPCDelta[1]/TMath::Sqrt(cov[2]);
    fTPCDelta[2] = (fTPCAngle0[0]-fTPCAngle1[0]);
    fTPCPools[2] = fTPCDelta[2]/TMath::Sqrt(cov[5]);
    fTPCDelta[3] = (TMath::Tan(fTPCAngle0[1])-TMath::Tan(fTPCAngle1[1]));
    fTPCPools[3] = fTPCDelta[3]/TMath::Sqrt(cov[9]);
    fTPCDelta[4] = (fTPCinP0[3]-fTPCinP1[3]);
    Double_t sign = (param[4]>0)? 1.:-1; 
    fSign =sign;
    fTPCPools[4] = sign*(1./fTPCinP0[3]-1./fTPCinP1[3])/TMath::Sqrt(TMath::Abs(cov[14]));
  }

  // Track propagated to the vertex during tracking - paramaters in ESD

  //
  if (fESDtrack && fESDtrack->GetTPCInnerParam()){
    AliExternalTrackParam *track = new AliExternalTrackParam(*fESDtrack->GetTPCInnerParam());
    const Double_t kRadius  = 3;   // beam pipe radius
    const Double_t kMaxStep = 5;   // max step
    //const Double_t kMaxD    = 123456;  // max distance to prim vertex
    //Double_t       fieldZ   = AliTracker::GetBz();  //
    AliTracker::PropagateTrackTo(track,kRadius,info->GetMass(),kMaxStep,kTRUE);
    AliTracker::PropagateTrackTo(track,0,info->GetMass(),0.5,kTRUE);
    //track->RelateToVertex(fEvent->GetVertex(),fieldZ, kMaxD);
    fTPCtrackAtVertex = track;
  }else{
    delete fTPCtrackAtVertex;
    fTPCtrackAtVertex=0;
  }  
}
Commit	Line	Data
6fc428f0	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	// //
	19	// Time Projection Chamber //
5b662585	20	// Comparison macro for reconstructed tracks //
6fc428f0	21	// responsible:
	22	// marian.ivanov@cern.ch //
	23	//
	24	//
	25
	26
	27
	28
	29
6fc428f0	30	//ROOT includes
	31	#include "Rtypes.h"
	32	//
	33	//ALIROOT includes
	34	//
	35	#include "AliESDtrack.h"
5b662585	36	#include "AliTracker.h"
6fc428f0	37	#include "AliTPCParam.h"
	38	#include "AliTrackReference.h"
	39	#include "AliTPCParamSR.h"
6fc428f0	40	#include "AliESDfriend.h"
	41	#include "AliESDtrack.h"
	42	#include "AliTPCseed.h"
	43	#include "AliITStrackMI.h"
	44	#include "AliTRDtrack.h"
76472f75	45	#include "AliMCInfo.h"
6fc428f0	46	#include "AliESDRecInfo.h"
	47
	48
	49
	50	ClassImp(AliESDRecInfo)
	51
	52
	53
	54
	55	AliTPCParam * GetTPCParam(){
	56	AliTPCParamSR * par = new AliTPCParamSR;
	57	par->Update();
	58	return par;
	59	}
	60
	61
	62
	63
	64	AliESDRecInfo::AliESDRecInfo():
	65	fITSOn(0), // ITS refitted inward
	66	fTRDOn(0), // ITS refitted inward
	67	fDeltaP(0), //delta of momenta
	68	fSign(0), // sign
	69	fReconstructed(0), //flag if track was reconstructed
	70	fFake(0), // fake track
	71	fMultiple(0), // number of reconstructions
	72	fTPCOn(0), // TPC refitted inward
	73	fBestTOFmatch(0), //best matching between times
	74	fESDtrack(0), // esd track
	75	fTrackF(0), // friend track
	76	fTPCtrack(0), // tpc track
	77	fITStrack(0), // its track
5b662585	78	fTRDtrack(0), // trd track
5b662585	79	fTPCtrackAtVertex(0) // tpc track propagated to the vertex
6fc428f0	80	{
	81	//
	82	// default constructor
	83	//
	84	}
	85
	86
	87	AliESDRecInfo::AliESDRecInfo(const AliESDRecInfo& recinfo):
cd875161	88	TObject(),
	89	fITSOn(0), // ITS refitted inward
	90	fTRDOn(0), // ITS refitted inward
	91	fDeltaP(0), //delta of momenta
	92	fSign(0), // sign
	93	fReconstructed(0), //flag if track was reconstructed
	94	fFake(0), // fake track
	95	fMultiple(0), // number of reconstructions
	96	fTPCOn(0), // TPC refitted inward
	97	fBestTOFmatch(0), //best matching between times
	98	fESDtrack(0), // esd track
	99	fTrackF(0), // friend track
	100	fTPCtrack(0), // tpc track
	101	fITStrack(0), // its track
	102	fTRDtrack(0), // trd track
	103	fTPCtrackAtVertex(0) // tpc track propagated to the vertex
6fc428f0	104	{
	105	//
	106	//
	107	//
	108	memcpy(this,&recinfo, sizeof(recinfo));
	109	fESDtrack=0; fTrackF=0; fTPCtrack=0;fITStrack=0;fTRDtrack=0;
	110	SetESDtrack(recinfo.GetESDtrack());
	111	}
	112
	113
cd875161	114	AliESDRecInfo& AliESDRecInfo::operator=(const AliESDRecInfo& info) {
	115	//
	116	// Assignment operator
	117	//
	118	delete this;
	119	new (this) AliESDRecInfo(info);
	120	return *this;
	121	}
	122
	123
	124
6fc428f0	125	AliESDRecInfo::~AliESDRecInfo()
	126
	127	{
	128	//
	129	// destructor
	130	//
	131	if (fESDtrack) { delete fESDtrack; fESDtrack=0;}
	132	if (fTrackF) { delete fTrackF; fTrackF=0;}
	133	if (fTPCtrack) { delete fTPCtrack; fTPCtrack=0;}
	134	if (fITStrack) { delete fITStrack; fITStrack=0;}
	135	if (fTRDtrack) { delete fTRDtrack; fTRDtrack=0;}
	136
	137	}
	138
	139
	140
	141	void AliESDRecInfo::Reset()
	142	{
	143	//
	144	// reset info
	145	//
	146	fMultiple =0;
	147	fFake =0;
	148	fReconstructed=0;
	149	if (fESDtrack) { delete fESDtrack; fESDtrack=0;}
	150	if (fTrackF) { delete fTrackF; fTrackF=0;}
	151	if (fTPCtrack) { delete fTPCtrack; fTPCtrack=0;}
	152	if (fITStrack) { delete fITStrack; fITStrack=0;}
	153	if (fTRDtrack) { delete fTRDtrack; fTRDtrack=0;}
	154	}
	155
	156	void AliESDRecInfo::SetESDtrack(const AliESDtrack *track){
	157	//
	158	//
	159	//
	160	if (fESDtrack) delete fESDtrack;
	161	fESDtrack = (AliESDtrack*)track->Clone();
	162	if (0 &&track->GetFriendTrack()){
	163	if (fTrackF) delete fTrackF;
	164	fTrackF = (AliESDfriendTrack*)track->GetFriendTrack()->Clone();
	165	if (fTrackF->GetCalibObject(0)){
	166	if (fTPCtrack) delete fTPCtrack;
	167	fTPCtrack = (AliTPCseed*)fTrackF->GetCalibObject(0)->Clone();
	168	}
	169	}
	170
	171	}
	172
	173	void AliESDRecInfo::UpdatePoints(AliESDtrack*track)
	174	{
	175	//
	176	//
	177	Int_t iclusters[200];
	178	Float_t density[160];
	179	for (Int_t i=0;i<160;i++) density[i]=-1.;
	180	fTPCPoints[0]= 160;
	181	fTPCPoints[1] = -1;
	182	//
	183	if (fTPCPoints[0]<fTPCPoints[1]) return;
	184	// Int_t nclusters=track->GetTPCclusters(iclusters);
	185
	186	Int_t ngood=0;
	187	Int_t undeff=0;
	188	Int_t nall =0;
189	Int_t range=20;
190	for (Int_t i=0;i<160;i++){
191	Int_t last = i-range;
192	if (nall<range) nall++;
193	if (last>=0){
194	if (iclusters[last]>0&& (iclusters[last]&0x8000)==0) ngood--;
195	if (iclusters[last]==-1) undeff--;
196	}
197	if (iclusters[i]>0&& (iclusters[i]&0x8000)==0) ngood++;
198	if (iclusters[i]==-1) undeff++;
199	if (nall==range &&undeff<range/2) density[i-range/2] = Float_t(ngood)/Float_t(nall-undeff);
200	}
201	Float_t maxdens=0;
202	Int_t indexmax =0;
203	for (Int_t i=0;i<160;i++){
204	if (density[i]<0) continue;
205	if (density[i]>maxdens){
206	maxdens=density[i];
207	indexmax=i;
208	}
209	}
210	//
211	//max dens point
212	fTPCPoints[3] = maxdens;
213	fTPCPoints[1] = indexmax;
214	//
215	// last point
216	for (Int_t i=indexmax;i<160;i++){
217	if (density[i]<0) continue;
218	if (density[i]<maxdens/2.) {
219	break;
220	}
221	fTPCPoints[2]=i;
222	}
223	//
224	// first point
225	for (Int_t i=indexmax;i>0;i--){
226	if (density[i]<0) continue;
227	if (density[i]<maxdens/2.) {
228	break;
229	}
230	fTPCPoints[0]=i;
231	}
232	//
233	// Density at the last 30 padrows
234	//
235	//
236	nall = 0;
237	ngood = 0;
238	for (Int_t i=159;i>0;i--){
239	if (iclusters[i]==-1) continue; //dead zone
240	nall++;
241	if (iclusters[i]>0) ngood++;
242	if (nall>20) break;
243	}
244	fTPCPoints[4] = Float_t(ngood)/Float_t(nall);
245	//
246	if ((track->GetStatus()&AliESDtrack::kITSrefit)>0) fTPCPoints[0]=-1;
247
248
249	}
250
251	//
252	//
253	void AliESDRecInfo::Update(AliMCInfo* info,AliTPCParam * /par/, Bool_t reconstructed)
254	{
6fc428f0	255	//
	256	//calculates derived variables
	257	//
6fc428f0	258	UpdatePoints(fESDtrack);
5b662585	259	UpdateStatus(info,reconstructed);
	260	UpdateITS(info);
	261	UpdateTPC(info);
	262	UpdateTOF(info);
	263	}
	264
	265
	266	void AliESDRecInfo::UpdateStatus(AliMCInfo* info, Bool_t reconstructed){
6fc428f0	267	//
5b662585	268	// Interpret bit mask flags
6fc428f0	269	//
	270	for (Int_t i=0;i<4;i++) fStatus[i] =0;
	271	fReconstructed = kFALSE;
	272	fTPCOn = kFALSE;
	273	fITSOn = kFALSE;
	274	fTRDOn = kFALSE;
	275	if (reconstructed==kFALSE) return;
	276
	277	fLabels[0] = info->fLabel;
	278	fLabels[1] = info->fPrimPart;
	279	fReconstructed = kTRUE;
	280	fTPCOn = ((fESDtrack->GetStatus()&AliESDtrack::kTPCrefit)>0) ? kTRUE : kFALSE;
	281	fITSOn = ((fESDtrack->GetStatus()&AliESDtrack::kITSrefit)>0) ? kTRUE : kFALSE;
	282	fTRDOn = ((fESDtrack->GetStatus()&AliESDtrack::kTRDrefit)>0) ? kTRUE : kFALSE;
	283	//
	284	//
	285	if ((fESDtrack->GetStatus()&AliESDtrack::kTPCrefit)>0){
	286	fStatus[1] =3;
	287	}
	288	else{
	289	if ((fESDtrack->GetStatus()&AliESDtrack::kTPCout)>0){
	290	fStatus[1] =2;
	291	}
	292	else{
	293	if ((fESDtrack->GetStatus()&AliESDtrack::kTPCin)>0)
	294	fStatus[1]=1;
	295	}
	296	}
	297	//
	298	if ((fESDtrack->GetStatus()&AliESDtrack::kITSout)>0){
	299	fStatus[0] =2;
	300	}
	301	else{
	302	if ((fESDtrack->GetStatus()&AliESDtrack::kITSrefit)>0){
	303	fStatus[0] =1;
	304	}
	305	else{
	306	fStatus[0]=0;
	307	}
	308	}
6fc428f0	309	//
	310	//
	311	if ((fESDtrack->GetStatus()&AliESDtrack::kTRDrefit)>0){
	312	fStatus[2] =2;
	313	}
	314	else{
	315	if ((fESDtrack->GetStatus()&AliESDtrack::kTRDout)>0){
	316	fStatus[2] =1;
	317	}
	318	}
	319	if ((fESDtrack->GetStatus()&AliESDtrack::kTRDStop)>0){
	320	fStatus[2] =10;
5b662585	321	}
5b662585	322	}
6fc428f0	323
5b662585	324	void AliESDRecInfo::UpdateTOF(AliMCInfo* info){
6fc428f0	325	//
5b662585	326	// Update TOF related comparison information
	327	//
	328	fBestTOFmatch=1000;
6fc428f0	329	if (((fESDtrack->GetStatus()&AliESDtrack::kTOFout)>0)){
	330	//
	331	// best tof match
	332	Double_t times[5];
	333	fESDtrack->GetIntegratedTimes(times);
	334	for (Int_t i=0;i<5;i++){
	335	if ( TMath::Abs(fESDtrack->GetTOFsignal()-times[i]) <TMath::Abs(fBestTOFmatch) ){
	336	fBestTOFmatch = fESDtrack->GetTOFsignal()-times[i];
	337	}
	338	}
	339	Int_t toflabel[3];
	340	fESDtrack->GetTOFLabel(toflabel);
	341	Bool_t toffake=kTRUE;
	342	Bool_t tofdaughter=kFALSE;
	343	for (Int_t i=0;i<3;i++){
	344	if (toflabel[i]<0) continue;
	345	if (toflabel[i]== TMath::Abs(fESDtrack->GetLabel())) toffake=kFALSE;
	346	if (toflabel[i]==info->fParticle.GetDaughter(0) \|\| (toflabel[i]==info->fParticle.GetDaughter(1))) tofdaughter=kTRUE; // decay product of original particle
	347	fStatus[3]=1;
	348	}
	349	if (toffake) fStatus[3] =3; //total fake
	350	if (tofdaughter) fStatus[3]=2; //fake because of decay
	351	}else{
	352	fStatus[3]=0;
	353	}
5b662585	354	}
6fc428f0	355
6fc428f0	356
5b662585	357
	358	void AliESDRecInfo::UpdateITS(AliMCInfo* info){
	359	//
	360	// Update ITS related comparison information
	361	//
	362	fITSinP0[0]=info->fParticle.Px();
	363	fITSinP0[1]=info->fParticle.Py();
	364	fITSinP0[2]=info->fParticle.Pz();
	365	fITSinP0[3]=info->fParticle.Pt();
	366	//
	367	fITSinR0[0]=info->fParticle.Vx();
	368	fITSinR0[1]=info->fParticle.Vy();
	369	fITSinR0[2]=info->fParticle.Vz();
	370	fITSinR0[3] = TMath::Sqrt(fITSinR0[0]fITSinR0[0]+fITSinR0[1]fITSinR0[1]);
	371	fITSinR0[4] = TMath::ATan2(fITSinR0[1],fITSinR0[0]);
	372	//
	373	//
	374	if (fITSinP0[3]>0.0000001){
	375	fITSAngle0[0] = TMath::ATan2(fITSinP0[1],fITSinP0[0]);
	376	fITSAngle0[1] = TMath::ATan(fITSinP0[2]/fITSinP0[3]);
6fc428f0	377	}
	378	if (fITSOn){
	379	// ITS
	380	Double_t param[5],x;
	381	fESDtrack->GetExternalParameters(x,param);
	382	// fESDtrack->GetConstrainedExternalParameters(x,param);
	383	Double_t cov[15];
	384	fESDtrack->GetExternalCovariance(cov);
	385	//fESDtrack->GetConstrainedExternalCovariance(cov);
	386	if (TMath::Abs(param[4])<0.0000000001) return;
5b662585	387
6fc428f0	388	fESDtrack->GetXYZ(fITSinR1);
	389	fESDtrack->GetPxPyPz(fITSinP1);
	390	fITSinP1[3] = TMath::Sqrt(fITSinP1[0]fITSinP1[0]+fITSinP1[1]fITSinP1[1]);
	391	//
	392	fITSinR1[3] = TMath::Sqrt(fITSinR1[0]fITSinR1[0]+fITSinR1[1]fITSinR1[1]);
	393	fITSinR1[4] = TMath::ATan2(fITSinR1[1],fITSinR1[0]);
	394	//
	395	//
	396	if (fITSinP1[3]>0.0000001){
	397	fITSAngle1[0] = TMath::ATan2(fITSinP1[1],fITSinP1[0]);
	398	fITSAngle1[1] = TMath::ATan(fITSinP1[2]/fITSinP1[3]);
	399	}
	400	//
	401	//
	402	fITSDelta[0] = (fITSinR0[4]-fITSinR1[4])*fITSinR1[3]; //delta rfi
	403	fITSPools[0] = fITSDelta[0]/TMath::Sqrt(cov[0]);
	404	fITSDelta[1] = (fITSinR0[2]-fITSinR1[2]); //delta z
	405	fITSPools[1] = fITSDelta[1]/TMath::Sqrt(cov[2]);
	406	fITSDelta[2] = (fITSAngle0[0]-fITSAngle1[0]);
	407	fITSPools[2] = fITSDelta[2]/TMath::Sqrt(cov[5]);
	408	fITSDelta[3] = (TMath::Tan(fITSAngle0[1])-TMath::Tan(fITSAngle1[1]));
	409	fITSPools[3] = fITSDelta[3]/TMath::Sqrt(cov[9]);
	410	fITSDelta[4] = (fITSinP0[3]-fITSinP1[3]);
	411	Double_t sign = (param[4]>0) ? 1:-1;
	412	fSign = sign;
5b662585	413	fITSPools[4] = sign*(1./fITSinP0[3]-1./fITSinP1[3])/TMath::Sqrt(cov[14]);
6fc428f0	414	}
6fc428f0	415	}
6fc428f0	416
5b662585	417	void AliESDRecInfo::UpdateTPC(AliMCInfo* info){
	418	//
	419	//
	420	// Update TPC related information
	421	//
	422	AliTrackReference * ref = &(info->fTrackRef);
	423	fTPCinR0[0] = info->fTrackRef.X();
	424	fTPCinR0[1] = info->fTrackRef.Y();
	425	fTPCinR0[2] = info->fTrackRef.Z();
	426	fTPCinR0[3] = TMath::Sqrt(fTPCinR0[0]fTPCinR0[0]+fTPCinR0[1]fTPCinR0[1]);
	427	fTPCinR0[4] = TMath::ATan2(fTPCinR0[1],fTPCinR0[0]);
	428	//
	429	fTPCinP0[0] = ref->Px();
	430	fTPCinP0[1] = ref->Py();
	431	fTPCinP0[2] = ref->Pz();
	432	fTPCinP0[3] = ref->Pt();
	433	fTPCinP0[4] = ref->P();
	434	fDeltaP = (ref->P()-info->fParticle.P())/info->fParticle.P();
	435	//
	436	//
	437	if (fTPCinP0[3]>0.0000001){
	438	//
	439	fTPCAngle0[0] = TMath::ATan2(fTPCinP0[1],fTPCinP0[0]);
	440	fTPCAngle0[1] = TMath::ATan(fTPCinP0[2]/fTPCinP0[3]);
	441	}
	442	//
	443	if (fStatus[1]>0 &&info->fNTPCRef>0&&TMath::Abs(fTPCinP0[3])>0.0001){
	444	//TPC
	445	fESDtrack->GetInnerXYZ(fTPCinR1);
	446	fTPCinR1[3] = TMath::Sqrt(fTPCinR1[0]fTPCinR1[0]+fTPCinR1[1]fTPCinR1[1]);
	447	fTPCinR1[4] = TMath::ATan2(fTPCinR1[1],fTPCinR1[0]);
	448	fESDtrack->GetInnerPxPyPz(fTPCinP1);
	449	fTPCinP1[3] = TMath::Sqrt(fTPCinP1[0]fTPCinP1[0]+fTPCinP1[1]fTPCinP1[1]);
	450	fTPCinP1[4] = TMath::Sqrt(fTPCinP1[3]fTPCinP1[3]+fTPCinP1[2]fTPCinP1[2]);
	451	//
	452	//
	453	if (fTPCinP1[3]>0.000000000000001){
	454	fTPCAngle1[0] = TMath::ATan2(fTPCinP1[1],fTPCinP1[0]);
	455	fTPCAngle1[1] = TMath::ATan(fTPCinP1[2]/fTPCinP1[3]);
	456	}
	457	Double_t cov[15], param[5],x, alpha;
	458	fESDtrack->GetInnerExternalCovariance(cov);
	459	fESDtrack->GetInnerExternalParameters(alpha, x,param);
	460	if (x<50) return ;
	461	//
	462	fTPCDelta[0] = (fTPCinR0[4]-fTPCinR1[4])*fTPCinR1[3]; //delta rfi
	463	fTPCPools[0] = fTPCDelta[0]/TMath::Sqrt(cov[0]);
	464	fTPCDelta[1] = (fTPCinR0[2]-fTPCinR1[2]); //delta z
	465	fTPCPools[1] = fTPCDelta[1]/TMath::Sqrt(cov[2]);
	466	fTPCDelta[2] = (fTPCAngle0[0]-fTPCAngle1[0]);
	467	fTPCPools[2] = fTPCDelta[2]/TMath::Sqrt(cov[5]);
	468	fTPCDelta[3] = (TMath::Tan(fTPCAngle0[1])-TMath::Tan(fTPCAngle1[1]));
	469	fTPCPools[3] = fTPCDelta[3]/TMath::Sqrt(cov[9]);
	470	fTPCDelta[4] = (fTPCinP0[3]-fTPCinP1[3]);
	471	Double_t sign = (param[4]>0)? 1.:-1;
	472	fSign =sign;
	473	fTPCPools[4] = sign*(1./fTPCinP0[3]-1./fTPCinP1[3])/TMath::Sqrt(TMath::Abs(cov[14]));
	474	}
cd875161	475
	476	// Track propagated to the vertex during tracking - paramaters in ESD
	477
5b662585	478	//
	479	if (fESDtrack && fESDtrack->GetTPCInnerParam()){
	480	AliExternalTrackParam track = new AliExternalTrackParam(fESDtrack->GetTPCInnerParam());
	481	const Double_t kRadius = 3; // beam pipe radius
	482	const Double_t kMaxStep = 5; // max step
cd875161	483	//const Double_t kMaxD = 123456; // max distance to prim vertex
cd875161	484	//Double_t fieldZ = AliTracker::GetBz(); //
5b662585	485	AliTracker::PropagateTrackTo(track,kRadius,info->GetMass(),kMaxStep,kTRUE);
	486	AliTracker::PropagateTrackTo(track,0,info->GetMass(),0.5,kTRUE);
	487	//track->RelateToVertex(fEvent->GetVertex(),fieldZ, kMaxD);
	488	fTPCtrackAtVertex = track;
	489	}else{
	490	delete fTPCtrackAtVertex;
	491	fTPCtrackAtVertex=0;
	492	}
	493	}
	494
	495
	496
	497
6fc428f0	498