[u/mrichter/AliRoot.git] / T0 / AliT0Reconstructor.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.                  *
 **************************************************************************/

/* $Id$ */
/*********************************************************************
 *  T0 reconstruction and filling ESD
 *  - reconstruct mean time (interation time) 
 *  - vertex position
 *  -  multiplicity
 ********************************************************************/

#include <AliESDEvent.h>
#include "AliLog.h"
#include "AliT0RecPoint.h"
#include "AliRawReader.h"
#include "AliT0RawReader.h"
#include "AliT0digit.h"
#include "AliT0Reconstructor.h"
#include "AliT0Parameters.h"
#include "AliT0Calibrator.h"

#include <TArrayI.h>
#include <TGraph.h>
#include <TMath.h>

ClassImp(AliT0Reconstructor)

  AliT0Reconstructor:: AliT0Reconstructor(): AliReconstructor(),
					     fdZonA(0),
					     fdZonC(0),
					     fZposition(0),
					     fParam(NULL),
					     fAmpLEDrec()
{
  //constructor

 AliDebug(1,"Start reconstructor ");
  
  fParam = AliT0Parameters::Instance();
  fParam->Init();
  for (Int_t i=0; i<24; i++){
    TGraph* gr = fParam ->GetAmpLEDRec(i);
    fAmpLEDrec.AddAtAndExpand(gr,i) ;  
//    fTime0vertex[i]= fParam->GetTimeV0(i);
  }
  fdZonC = TMath::Abs(fParam->GetZPositionShift("T0/C/PMT1"));
  fdZonA = TMath::Abs(fParam->GetZPositionShift("T0/A/PMT15"));

}
//____________________________________________________________________

AliT0Reconstructor::AliT0Reconstructor(const AliT0Reconstructor &r):
  AliReconstructor(r),
					     fdZonA(0),
					     fdZonC(0),
					     fZposition(0),
					     fParam(NULL),
					     fAmpLEDrec()
 {
  //
  // AliT0Reconstructor copy constructor
  //

  ((AliT0Reconstructor &) r).Copy(*this);

}

//_____________________________________________________________________________
AliT0Reconstructor &AliT0Reconstructor::operator=(const AliT0Reconstructor &r)
{
  //
  // Assignment operator
  //

  if (this != &r) ((AliT0Reconstructor &) r).Copy(*this);
  return *this;

}

//_____________________________________________________________________________

void AliT0Reconstructor::Reconstruct(TTree*digitsTree, TTree*clustersTree) const
  
{
  // T0 digits reconstruction
  // T0RecPoint writing 
  
   
  TArrayI * timeCFD = new TArrayI(24); 
  TArrayI * timeLED = new TArrayI(24); 
  TArrayI * chargeQT0 = new TArrayI(24); 
  TArrayI * chargeQT1 = new TArrayI(24); 

  AliT0Calibrator *calib=new AliT0Calibrator(); 

  //  Int_t mV2Mip = param->GetmV2Mip();     
  //mV2Mip = param->GetmV2Mip();     
  Float_t channelWidth = fParam->GetChannelWidth() ;  
  Int_t meanT0 = fParam->GetMeanT0();
  
  AliDebug(1,Form("Start DIGITS reconstruction "));
  
  TBranch *brDigits=digitsTree->GetBranch("T0");
  AliT0digit *fDigits = new AliT0digit() ;
  if (brDigits) {
    brDigits->SetAddress(&fDigits);
  }else{
    AliError(Form("EXEC Branch T0 digits not found"));
     return;
  }
  
  digitsTree->GetEvent(0);
  digitsTree->GetEntry(0);
  brDigits->GetEntry(0);
  fDigits->GetTimeCFD(*timeCFD);
  fDigits->GetTimeLED(*timeLED);
  fDigits->GetQT0(*chargeQT0);
  fDigits->GetQT1(*chargeQT1);

  
  Float_t besttimeA=999999;
  Float_t besttimeC=999999;
  Int_t pmtBestA=99999;
  Int_t pmtBestC=99999;
  Float_t timeDiff=999999, meanTime=0;
  

  AliT0RecPoint* frecpoints= new AliT0RecPoint ();
  clustersTree->Branch( "T0", "AliT0RecPoint" ,&frecpoints, 405,1);
  
  Float_t time[24], adc[24];
  for (Int_t ipmt=0; ipmt<24; ipmt++) {
    if(timeCFD->At(ipmt)>0 ){
      Double_t qt0 = Double_t(chargeQT0->At(ipmt));
      Double_t qt1 = Double_t(chargeQT1->At(ipmt));
      if((qt1-qt0)>0)  adc[ipmt] = TMath::Exp( Double_t (channelWidth*(qt1-qt0)/1000));
      time[ipmt] = calib-> WalkCorrection( ipmt,Int_t(qt1) , timeCFD->At(ipmt) ) ;
      
      //LED
      Double_t sl = (timeLED->At(ipmt) - time[ipmt])*channelWidth;
      Double_t qt=((TGraph*)fAmpLEDrec.At(ipmt))->Eval(sl/1000.);
      frecpoints->SetTime(ipmt,time[ipmt]);
      frecpoints->SetAmp(ipmt,adc[ipmt]);
      frecpoints->SetAmpLED(ipmt,qt);
    }
    else {
      time[ipmt] = 0;
      adc[ipmt] = 0;
    }
  }
  
  for (Int_t ipmt=0; ipmt<12; ipmt++){
    if(time[ipmt] > 1 ) {
      if(time[ipmt]<besttimeC){
	besttimeC=time[ipmt]; //timeC
	pmtBestC=ipmt;
      }
    }
  }
  for ( Int_t ipmt=12; ipmt<24; ipmt++){
    if(time[ipmt] > 1) {
      if(time[ipmt]<besttimeA) {
	besttimeA=time[ipmt]; //timeA
        pmtBestA=ipmt;}
    }
  }
  if(besttimeA !=999999)  frecpoints->SetTimeBestA(Int_t(besttimeA));
  if( besttimeC != 999999 ) frecpoints->SetTimeBestC(Int_t(besttimeC));
  AliDebug(1,Form(" besttimeA %f ps,  besttimeC %f ps",besttimeA, besttimeC));
  Float_t c = 0.0299792; // cm/ps
  Float_t vertex = 0;
  if(besttimeA !=999999 && besttimeC != 999999 ){
    timeDiff =(besttimeC - besttimeA)*channelWidth;
    meanTime = (meanT0 - (besttimeA + besttimeC)/2) * channelWidth;
    vertex = c*(timeDiff)/2. + (fdZonA - fdZonC)/2; //-(lenr-lenl))/2;
    AliDebug(1,Form("  timeDiff %f ps,  meanTime %f ps, vertex %f cm",timeDiff, meanTime,vertex ));
    frecpoints->SetVertex(vertex);
    frecpoints->SetMeanTime(Int_t(meanTime));
    
  }
  //time in each channel as time[ipmt]-MeanTimeinThisChannel(with vertex=0)
  for (Int_t ipmt=0; ipmt<24; ipmt++) {
    if(time[ipmt]>1) {
//      time[ipmt] = (time[ipmt] - fTime0vertex[ipmt])*channelWidth;
      time[ipmt] = time[ipmt] * channelWidth;
      frecpoints->SetTime(ipmt,time[ipmt]);
    }
  }
  clustersTree->Fill();

  delete timeCFD;
  delete timeLED;
  delete chargeQT0; 
  delete chargeQT1; 
}


//_______________________________________________________________________

void AliT0Reconstructor::Reconstruct(AliRawReader* rawReader, TTree*recTree) const
{
  // T0 raw ->
  // T0RecPoint writing 
  
  //Q->T-> coefficients !!!! should be measured!!!
  Int_t allData[110][50];
  
  TArrayI * timeCFD = new TArrayI(24); 
  TArrayI * timeLED = new TArrayI(24); 
  TArrayI * chargeQT0 = new TArrayI(24); 
  TArrayI * chargeQT1 = new TArrayI(24); 

  for (Int_t i0=0; i0<105; i0++)
    {
      for (Int_t j0=0; j0<50; j0++) allData[i0][j0]=0; 	
    }
  

  AliDebug(10," before read data ");
  AliT0RawReader myrawreader(rawReader);
  if (!myrawreader.Next())
    AliDebug(1,Form(" no raw data found!! %i", myrawreader.Next()));

    for (Int_t i=0; i<105; i++) {
      for (Int_t iHit=0; iHit<50; iHit++) 
	{
	  allData[i][iHit] = myrawreader.GetData(i,iHit);
	}
    }
  AliT0Calibrator *calib = new AliT0Calibrator(); 
  
  //  Int_t mV2Mip = param->GetmV2Mip();     
  //mV2Mip = param->GetmV2Mip();     
  Float_t channelWidth = fParam->GetChannelWidth() ;  

  Int_t meanT0 = fParam->GetMeanT0();
 
  for (Int_t in=0; in<24; in++)  
    {
       timeLED->AddAt(allData[in+1][0],in);
       timeCFD->AddAt(allData[in+25][0],in);
       chargeQT1->AddAt(allData[in+57][0],in);
       chargeQT0->AddAt(allData[in+80][0],in);
       AliDebug(10, Form(" readed Raw %i %i %i %i %i", in, timeLED->At(in),timeCFD->At(in),chargeQT0->At(in),chargeQT1->At(in)));
     }

  Float_t besttimeA=9999999;
  Float_t besttimeC=9999999;
  Int_t pmtBestA=99999;
  Int_t pmtBestC=99999;
  Float_t timeDiff=9999999, meanTime=0;

  
  AliT0RecPoint* frecpoints= new AliT0RecPoint ();
 
  recTree->Branch( "T0", "AliT0RecPoint" ,&frecpoints, 405,1);
  

  Float_t time[24], adc[24];
  for (Int_t ipmt=0; ipmt<24; ipmt++) {
    if(timeCFD->At(ipmt)>0 ){
      /* 
     Double_t qt0 = Double_t(chargeQT0->At(ipmt));
      Double_t qt1 = Double_t(chargeQT1->At(ipmt));
      if((qt1-qt0)>0)  adc[ipmt] = TMath::Exp( Double_t (channelWidth*(qt1-qt0)/1000));
      //      time[ipmt] = channelWidth * (calib-> WalkCorrection( ipmt,qt1 , timeCFD->At(ipmt) ) ) ;
      time[ipmt] = calib-> WalkCorrection( ipmt,Int_t(qt1) , timeCFD->At(ipmt) ) ;
      Double_t sl = (timeLED->At(ipmt) - time[ipmt])*channelWidth;
      Double_t qt=((TGraph*)fAmpLEDrec.At(ipmt))->Eval(sl/1000.);
      frecpoints->SetTime(ipmt,time[ipmt]);
      frecpoints->SetAmp(ipmt,adc[ipmt]);
      frecpoints->SetAmpLED(ipmt,qt);
    AliDebug(1,Form(" QTC %f mv,  QTC  %f MIPS time in chann %f time %f ",adc[ipmt], adc[ipmt]/50.,time[ipmt], time[ipmt]*channelWidth));
      */
      Float_t qt0 = Float_t(chargeQT0->At(ipmt));
      Float_t qt1 = Float_t(chargeQT1->At(ipmt));
      if((qt0-qt1)>0)  adc[ipmt] = qt0-qt1;
      time[ipmt] = calib-> WalkCorrection( ipmt, adc[ipmt], timeCFD->At(ipmt) ) ;
      Double_t sl = timeLED->At(ipmt) - time[ipmt];
      Double_t qt=((TGraph*)fAmpLEDrec.At(ipmt))->Eval(sl);
      frecpoints->SetTime(ipmt,time[ipmt]);
      frecpoints->SetAmp(ipmt,adc[ipmt]);
      frecpoints->SetAmpLED(ipmt,qt);
      AliDebug(10,Form(" QTC %f , time in chann %f ",adc[ipmt] ,time[ipmt]));
     
    }
    else {
      time[ipmt] = 0;
      adc[ipmt] = 0;
    }
  }

  for (Int_t ipmt=0; ipmt<12; ipmt++){
    if(time[ipmt] > 1 ) {
      if(time[ipmt]<besttimeC){
	besttimeC=time[ipmt]; //timeC
	pmtBestC=ipmt;
      }
    }
  }
  for ( Int_t ipmt=12; ipmt<24; ipmt++){
    if(time[ipmt] > 1) {
      if(time[ipmt]<besttimeA) {
	besttimeA=time[ipmt]; //timeA
        pmtBestA=ipmt;}
    }
  }
  if(besttimeA !=9999999)  frecpoints->SetTimeBestA(Int_t(besttimeA));
  if( besttimeC != 9999999 ) frecpoints->SetTimeBestC(Int_t(besttimeC));
  AliDebug(1,Form(" besttimeA %f ps,  besttimeC %f ps",besttimeA, besttimeC));
  Float_t c = 0.0299792; // cm/ps
  Float_t vertex = 99999;
  if(besttimeA <9999999 && besttimeC < 9999999 ){
    timeDiff = besttimeC - besttimeA;
    //    meanTime = (meanT0 - (besttimeA + besttimeC)/2) * channelWidth;
    meanTime =  (besttimeA + besttimeC)/2;  
    vertex = c*(timeDiff)/2. + (fdZonA - fdZonC)/2; 
    AliDebug(1,Form("  timeDiff %f ps,  meanTime %f ps, vertex %f cm",timeDiff, meanTime,vertex ));
    frecpoints->SetVertex(vertex);
    frecpoints->SetMeanTime(Int_t(meanTime));
    
  }
  //time in each channel as time[ipmt]-MeanTimeinThisChannel(with vertex=0)
  /*
  for (Int_t ipmt=0; ipmt<24; ipmt++) {
    if(time[ipmt]>1) {
      time[ipmt] = (time[ipmt] - fTime0vertex[ipmt])*channelWidth;
      frecpoints->SetTime(ipmt,time[ipmt]);
    }
    }
  */
  recTree->Fill();
 

  delete timeCFD;
  delete timeLED;
  delete chargeQT0; 
  delete chargeQT1; 
  
}
//____________________________________________________________

void AliT0Reconstructor::FillESD(TTree */*digitsTree*/, TTree *clustersTree, AliESDEvent *pESD) const
{

  /***************************************************
  Resonstruct digits to vertex position
  ****************************************************/
  
  AliDebug(1,Form("Start FillESD T0"));

  TTree *treeR = clustersTree;
  
   AliT0RecPoint* frecpoints= new AliT0RecPoint ();
    if (!frecpoints) {
    AliError("Reconstruct Fill ESD >> no recpoints found");
    return;
  }
  
  AliDebug(1,Form("Start FillESD T0"));
  TBranch *brRec = treeR->GetBranch("T0");
  if (brRec) {
    brRec->SetAddress(&frecpoints);
  }else{
    AliError(Form("EXEC Branch T0 rec not found"));
    return;
  } 
    
    brRec->GetEntry(0);
    Float_t amp[24], time[24];
    Float_t  zPosition = frecpoints -> GetVertex();
    Float_t timeStart = frecpoints -> GetMeanTime() ;
    for ( Int_t i=0; i<24; i++) {
      time[i] = Float_t (frecpoints -> GetTime(i)); // ps to ns
      amp[i] = frecpoints -> GetAmp(i);
    }
    pESD->SetT0zVertex(zPosition); //vertex Z position 
    pESD->SetT0(timeStart);        // interaction time 
    pESD->SetT0time(time);         // best TOF on each PMT 
    pESD->SetT0amplitude(amp);     // number of particles(MIPs) on each PMT
 
    AliDebug(1,Form(" Z position %f cm,  T0  %f ps",zPosition , timeStart));

} // vertex in 3 sigma
Commit	Line	Data
dc7ca31d	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	/* $Id$ */
72e48d95	17	/*********************************************************************
	18	* T0 reconstruction and filling ESD
	19	* - reconstruct mean time (interation time)
	20	* - vertex position
	21	* - multiplicity
	22	********************************************************************/
dc7ca31d	23
af885e0f	24	#include <AliESDEvent.h>
dc7ca31d	25	#include "AliLog.h"
dc7ca31d	26	#include "AliT0RecPoint.h"
	27	#include "AliRawReader.h"
	28	#include "AliT0RawReader.h"
dc7ca31d	29	#include "AliT0digit.h"
	30	#include "AliT0Reconstructor.h"
	31	#include "AliT0Parameters.h"
c41ceaac	32	#include "AliT0Calibrator.h"
dc7ca31d	33
	34	#include <TArrayI.h>
	35	#include <TGraph.h>
aad72f45	36	#include <TMath.h>
dc7ca31d	37
	38	ClassImp(AliT0Reconstructor)
	39
c41ceaac	40	AliT0Reconstructor:: AliT0Reconstructor(): AliReconstructor(),
f16935f7	41	fdZonA(0),
	42	fdZonC(0),
	43	fZposition(0),
	44	fParam(NULL),
	45	fAmpLEDrec()
e0bba6cc	46	{
72e48d95	47	//constructor
72e48d95	48
c41ceaac	49	AliDebug(1,"Start reconstructor ");
74adb36a	50
	51	fParam = AliT0Parameters::Instance();
	52	fParam->Init();
74adb36a	53	for (Int_t i=0; i<24; i++){
	54	TGraph* gr = fParam ->GetAmpLEDRec(i);
	55	fAmpLEDrec.AddAtAndExpand(gr,i) ;
c32fcee0	56	// fTime0vertex[i]= fParam->GetTimeV0(i);
74adb36a	57	}
f16935f7	58	fdZonC = TMath::Abs(fParam->GetZPositionShift("T0/C/PMT1"));
f16935f7	59	fdZonA = TMath::Abs(fParam->GetZPositionShift("T0/A/PMT15"));
74adb36a	60
c41ceaac	61	}
c41ceaac	62	//____________________________________________________________________
e0bba6cc	63
c41ceaac	64	AliT0Reconstructor::AliT0Reconstructor(const AliT0Reconstructor &r):
d76c31f4	65	AliReconstructor(r),
f16935f7	66	fdZonA(0),
	67	fdZonC(0),
	68	fZposition(0),
	69	fParam(NULL),
	70	fAmpLEDrec()
	71	{
c41ceaac	72	//
	73	// AliT0Reconstructor copy constructor
	74	//
e0bba6cc	75
c41ceaac	76	((AliT0Reconstructor &) r).Copy(*this);
e0bba6cc	77
	78	}
	79
c41ceaac	80	//_____________________________________________________________________________
c41ceaac	81	AliT0Reconstructor &AliT0Reconstructor::operator=(const AliT0Reconstructor &r)
dc7ca31d	82	{
c41ceaac	83	//
	84	// Assignment operator
	85	//
	86
	87	if (this != &r) ((AliT0Reconstructor &) r).Copy(*this);
	88	return *this;
e0bba6cc	89
dc7ca31d	90	}
c41ceaac	91
	92	//_____________________________________________________________________________
	93
dc7ca31d	94	void AliT0Reconstructor::Reconstruct(TTreedigitsTree, TTreeclustersTree) const
94c27e4f	95
dc7ca31d	96	{
94c27e4f	97	// T0 digits reconstruction
94c27e4f	98	// T0RecPoint writing
c41ceaac	99
74adb36a	100
c41ceaac	101	TArrayI * timeCFD = new TArrayI(24);
	102	TArrayI * timeLED = new TArrayI(24);
	103	TArrayI * chargeQT0 = new TArrayI(24);
	104	TArrayI * chargeQT1 = new TArrayI(24);
74adb36a	105
c41ceaac	106	AliT0Calibrator *calib=new AliT0Calibrator();
dc7ca31d	107
94c27e4f	108	// Int_t mV2Mip = param->GetmV2Mip();
dc7ca31d	109	//mV2Mip = param->GetmV2Mip();
8955c6b4	110	Float_t channelWidth = fParam->GetChannelWidth() ;
74adb36a	111	Int_t meanT0 = fParam->GetMeanT0();
94c27e4f	112
dc7ca31d	113	AliDebug(1,Form("Start DIGITS reconstruction "));
94c27e4f	114
dc7ca31d	115	TBranch *brDigits=digitsTree->GetBranch("T0");
e0bba6cc	116	AliT0digit *fDigits = new AliT0digit() ;
dc7ca31d	117	if (brDigits) {
	118	brDigits->SetAddress(&fDigits);
	119	}else{
f16935f7	120	AliError(Form("EXEC Branch T0 digits not found"));
f16935f7	121	return;
dc7ca31d	122	}
e0bba6cc	123
c41ceaac	124	digitsTree->GetEvent(0);
	125	digitsTree->GetEntry(0);
	126	brDigits->GetEntry(0);
	127	fDigits->GetTimeCFD(*timeCFD);
	128	fDigits->GetTimeLED(*timeLED);
	129	fDigits->GetQT0(*chargeQT0);
	130	fDigits->GetQT1(*chargeQT1);
c32fcee0	131
c41ceaac	132
	133	Float_t besttimeA=999999;
	134	Float_t besttimeC=999999;
	135	Int_t pmtBestA=99999;
	136	Int_t pmtBestC=99999;
dc7ca31d	137	Float_t timeDiff=999999, meanTime=0;
dc7ca31d	138
e0bba6cc	139
e0bba6cc	140
94c27e4f	141	AliT0RecPoint* frecpoints= new AliT0RecPoint ();
	142	clustersTree->Branch( "T0", "AliT0RecPoint" ,&frecpoints, 405,1);
	143
dc7ca31d	144	Float_t time[24], adc[24];
dc7ca31d	145	for (Int_t ipmt=0; ipmt<24; ipmt++) {
c41ceaac	146	if(timeCFD->At(ipmt)>0 ){
29d3e0eb	147	Double_t qt0 = Double_t(chargeQT0->At(ipmt));
29d3e0eb	148	Double_t qt1 = Double_t(chargeQT1->At(ipmt));
c41ceaac	149	if((qt1-qt0)>0) adc[ipmt] = TMath::Exp( Double_t (channelWidth*(qt1-qt0)/1000));
29d3e0eb	150	time[ipmt] = calib-> WalkCorrection( ipmt,Int_t(qt1) , timeCFD->At(ipmt) ) ;
c41ceaac	151
c41ceaac	152	//LED
29d3e0eb	153	Double_t sl = (timeLED->At(ipmt) - time[ipmt])*channelWidth;
74adb36a	154	Double_t qt=((TGraph*)fAmpLEDrec.At(ipmt))->Eval(sl/1000.);
29d3e0eb	155	frecpoints->SetTime(ipmt,time[ipmt]);
dc7ca31d	156	frecpoints->SetAmp(ipmt,adc[ipmt]);
c41ceaac	157	frecpoints->SetAmpLED(ipmt,qt);
dc7ca31d	158	}
	159	else {
	160	time[ipmt] = 0;
	161	adc[ipmt] = 0;
	162	}
	163	}
94c27e4f	164
dc7ca31d	165	for (Int_t ipmt=0; ipmt<12; ipmt++){
dc7ca31d	166	if(time[ipmt] > 1 ) {
c41ceaac	167	if(time[ipmt]<besttimeC){
	168	besttimeC=time[ipmt]; //timeC
	169	pmtBestC=ipmt;
dc7ca31d	170	}
	171	}
	172	}
	173	for ( Int_t ipmt=12; ipmt<24; ipmt++){
	174	if(time[ipmt] > 1) {
c41ceaac	175	if(time[ipmt]<besttimeA) {
	176	besttimeA=time[ipmt]; //timeA
	177	pmtBestA=ipmt;}
dc7ca31d	178	}
dc7ca31d	179	}
c41ceaac	180	if(besttimeA !=999999) frecpoints->SetTimeBestA(Int_t(besttimeA));
	181	if( besttimeC != 999999 ) frecpoints->SetTimeBestC(Int_t(besttimeC));
	182	AliDebug(1,Form(" besttimeA %f ps, besttimeC %f ps",besttimeA, besttimeC));
dc7ca31d	183	Float_t c = 0.0299792; // cm/ps
dc7ca31d	184	Float_t vertex = 0;
c41ceaac	185	if(besttimeA !=999999 && besttimeC != 999999 ){
94c27e4f	186	timeDiff =(besttimeC - besttimeA)*channelWidth;
94c27e4f	187	meanTime = (meanT0 - (besttimeA + besttimeC)/2) * channelWidth;
f16935f7	188	vertex = c*(timeDiff)/2. + (fdZonA - fdZonC)/2; //-(lenr-lenl))/2;
dc7ca31d	189	AliDebug(1,Form(" timeDiff %f ps, meanTime %f ps, vertex %f cm",timeDiff, meanTime,vertex ));
	190	frecpoints->SetVertex(vertex);
	191	frecpoints->SetMeanTime(Int_t(meanTime));
	192
	193	}
94c27e4f	194	//time in each channel as time[ipmt]-MeanTimeinThisChannel(with vertex=0)
	195	for (Int_t ipmt=0; ipmt<24; ipmt++) {
	196	if(time[ipmt]>1) {
c32fcee0	197	// time[ipmt] = (time[ipmt] - fTime0vertex[ipmt])*channelWidth;
c32fcee0	198	time[ipmt] = time[ipmt] * channelWidth;
94c27e4f	199	frecpoints->SetTime(ipmt,time[ipmt]);
	200	}
	201	}
dc7ca31d	202	clustersTree->Fill();
bd375212	203
	204	delete timeCFD;
	205	delete timeLED;
	206	delete chargeQT0;
	207	delete chargeQT1;
dc7ca31d	208	}
	209
	210
c41ceaac	211	//_______________________________________________________________________
	212
	213	void AliT0Reconstructor::Reconstruct(AliRawReader* rawReader, TTree*recTree) const
	214	{
94c27e4f	215	// T0 raw ->
	216	// T0RecPoint writing
	217
	218	//Q->T-> coefficients !!!! should be measured!!!
700e6b36	219	Int_t allData[110][50];
94c27e4f	220
c41ceaac	221	TArrayI * timeCFD = new TArrayI(24);
	222	TArrayI * timeLED = new TArrayI(24);
	223	TArrayI * chargeQT0 = new TArrayI(24);
	224	TArrayI * chargeQT1 = new TArrayI(24);
	225
700e6b36	226	for (Int_t i0=0; i0<105; i0++)
	227	{
	228	for (Int_t j0=0; j0<50; j0++) allData[i0][j0]=0;
	229	}
	230
5325480c	231
700e6b36	232	AliDebug(10," before read data ");
	233	AliT0RawReader myrawreader(rawReader);
	234	if (!myrawreader.Next())
	235	AliDebug(1,Form(" no raw data found!! %i", myrawreader.Next()));
c41ceaac	236
700e6b36	237	for (Int_t i=0; i<105; i++) {
	238	for (Int_t iHit=0; iHit<50; iHit++)
	239	{
	240	allData[i][iHit] = myrawreader.GetData(i,iHit);
	241	}
	242	}
	243	AliT0Calibrator *calib = new AliT0Calibrator();
	244
74adb36a	245	// Int_t mV2Mip = param->GetmV2Mip();
c41ceaac	246	//mV2Mip = param->GetmV2Mip();
8955c6b4	247	Float_t channelWidth = fParam->GetChannelWidth() ;
8955c6b4	248
74adb36a	249	Int_t meanT0 = fParam->GetMeanT0();
74adb36a	250
700e6b36	251	for (Int_t in=0; in<24; in++)
700e6b36	252	{
c41ceaac	253	timeLED->AddAt(allData[in+1][0],in);
c41ceaac	254	timeCFD->AddAt(allData[in+25][0],in);
29d3e0eb	255	chargeQT1->AddAt(allData[in+57][0],in);
29d3e0eb	256	chargeQT0->AddAt(allData[in+80][0],in);
c41ceaac	257	AliDebug(10, Form(" readed Raw %i %i %i %i %i", in, timeLED->At(in),timeCFD->At(in),chargeQT0->At(in),chargeQT1->At(in)));
	258	}
	259
700e6b36	260	Float_t besttimeA=9999999;
700e6b36	261	Float_t besttimeC=9999999;
c41ceaac	262	Int_t pmtBestA=99999;
c41ceaac	263	Int_t pmtBestC=99999;
700e6b36	264	Float_t timeDiff=9999999, meanTime=0;
c41ceaac	265
	266
	267	AliT0RecPoint* frecpoints= new AliT0RecPoint ();
	268
	269	recTree->Branch( "T0", "AliT0RecPoint" ,&frecpoints, 405,1);
	270
	271
	272	Float_t time[24], adc[24];
	273	for (Int_t ipmt=0; ipmt<24; ipmt++) {
	274	if(timeCFD->At(ipmt)>0 ){
700e6b36	275	/*
700e6b36	276	Double_t qt0 = Double_t(chargeQT0->At(ipmt));
29d3e0eb	277	Double_t qt1 = Double_t(chargeQT1->At(ipmt));
c41ceaac	278	if((qt1-qt0)>0) adc[ipmt] = TMath::Exp( Double_t (channelWidth*(qt1-qt0)/1000));
94c27e4f	279	// time[ipmt] = channelWidth * (calib-> WalkCorrection( ipmt,qt1 , timeCFD->At(ipmt) ) ) ;
29d3e0eb	280	time[ipmt] = calib-> WalkCorrection( ipmt,Int_t(qt1) , timeCFD->At(ipmt) ) ;
29d3e0eb	281	Double_t sl = (timeLED->At(ipmt) - time[ipmt])*channelWidth;
74adb36a	282	Double_t qt=((TGraph*)fAmpLEDrec.At(ipmt))->Eval(sl/1000.);
c41ceaac	283	frecpoints->SetTime(ipmt,time[ipmt]);
	284	frecpoints->SetAmp(ipmt,adc[ipmt]);
	285	frecpoints->SetAmpLED(ipmt,qt);
8955c6b4	286	AliDebug(1,Form(" QTC %f mv, QTC %f MIPS time in chann %f time %f ",adc[ipmt], adc[ipmt]/50.,time[ipmt], time[ipmt]*channelWidth));
700e6b36	287	*/
	288	Float_t qt0 = Float_t(chargeQT0->At(ipmt));
	289	Float_t qt1 = Float_t(chargeQT1->At(ipmt));
	290	if((qt0-qt1)>0) adc[ipmt] = qt0-qt1;
	291	time[ipmt] = calib-> WalkCorrection( ipmt, adc[ipmt], timeCFD->At(ipmt) ) ;
	292	Double_t sl = timeLED->At(ipmt) - time[ipmt];
	293	Double_t qt=((TGraph*)fAmpLEDrec.At(ipmt))->Eval(sl);
	294	frecpoints->SetTime(ipmt,time[ipmt]);
	295	frecpoints->SetAmp(ipmt,adc[ipmt]);
	296	frecpoints->SetAmpLED(ipmt,qt);
	297	AliDebug(10,Form(" QTC %f , time in chann %f ",adc[ipmt] ,time[ipmt]));
8955c6b4	298
c41ceaac	299	}
	300	else {
	301	time[ipmt] = 0;
	302	adc[ipmt] = 0;
	303	}
	304	}
	305
	306	for (Int_t ipmt=0; ipmt<12; ipmt++){
	307	if(time[ipmt] > 1 ) {
	308	if(time[ipmt]<besttimeC){
	309	besttimeC=time[ipmt]; //timeC
	310	pmtBestC=ipmt;
	311	}
	312	}
	313	}
	314	for ( Int_t ipmt=12; ipmt<24; ipmt++){
	315	if(time[ipmt] > 1) {
	316	if(time[ipmt]<besttimeA) {
	317	besttimeA=time[ipmt]; //timeA
	318	pmtBestA=ipmt;}
	319	}
	320	}
700e6b36	321	if(besttimeA !=9999999) frecpoints->SetTimeBestA(Int_t(besttimeA));
700e6b36	322	if( besttimeC != 9999999 ) frecpoints->SetTimeBestC(Int_t(besttimeC));
c41ceaac	323	AliDebug(1,Form(" besttimeA %f ps, besttimeC %f ps",besttimeA, besttimeC));
c41ceaac	324	Float_t c = 0.0299792; // cm/ps
700e6b36	325	Float_t vertex = 99999;
	326	if(besttimeA <9999999 && besttimeC < 9999999 ){
	327	timeDiff = besttimeC - besttimeA;
	328	// meanTime = (meanT0 - (besttimeA + besttimeC)/2) * channelWidth;
	329	meanTime = (besttimeA + besttimeC)/2;
	330	vertex = c*(timeDiff)/2. + (fdZonA - fdZonC)/2;
c41ceaac	331	AliDebug(1,Form(" timeDiff %f ps, meanTime %f ps, vertex %f cm",timeDiff, meanTime,vertex ));
	332	frecpoints->SetVertex(vertex);
	333	frecpoints->SetMeanTime(Int_t(meanTime));
	334
	335	}
94c27e4f	336	//time in each channel as time[ipmt]-MeanTimeinThisChannel(with vertex=0)
8955c6b4	337	/*
94c27e4f	338	for (Int_t ipmt=0; ipmt<24; ipmt++) {
94c27e4f	339	if(time[ipmt]>1) {
74adb36a	340	time[ipmt] = (time[ipmt] - fTime0vertex[ipmt])*channelWidth;
94c27e4f	341	frecpoints->SetTime(ipmt,time[ipmt]);
94c27e4f	342	}
8955c6b4	343	}
8955c6b4	344	*/
c41ceaac	345	recTree->Fill();
94c27e4f	346
bd375212	347
	348	delete timeCFD;
	349	delete timeLED;
	350	delete chargeQT0;
	351	delete chargeQT1;
	352
c41ceaac	353	}
	354	//____________________________________________________________
	355
d76c31f4	356	void AliT0Reconstructor::FillESD(TTree /digitsTree/, TTree clustersTree, AliESDEvent *pESD) const
dc7ca31d	357	{
	358
	359	/***************************************************
	360	Resonstruct digits to vertex position
	361	****************************************************/
	362
dc7ca31d	363	AliDebug(1,Form("Start FillESD T0"));
dc7ca31d	364
d76c31f4	365	TTree *treeR = clustersTree;
dc7ca31d	366
	367	AliT0RecPoint* frecpoints= new AliT0RecPoint ();
	368	if (!frecpoints) {
	369	AliError("Reconstruct Fill ESD >> no recpoints found");
	370	return;
	371	}
	372
	373	AliDebug(1,Form("Start FillESD T0"));
	374	TBranch *brRec = treeR->GetBranch("T0");
	375	if (brRec) {
	376	brRec->SetAddress(&frecpoints);
	377	}else{
f16935f7	378	AliError(Form("EXEC Branch T0 rec not found"));
dc7ca31d	379	return;
	380	}
	381
	382	brRec->GetEntry(0);
f16935f7	383	Float_t amp[24], time[24];
	384	Float_t zPosition = frecpoints -> GetVertex();
	385	Float_t timeStart = frecpoints -> GetMeanTime() ;
	386	for ( Int_t i=0; i<24; i++) {
94c27e4f	387	time[i] = Float_t (frecpoints -> GetTime(i)); // ps to ns
dc7ca31d	388	amp[i] = frecpoints -> GetAmp(i);
dc7ca31d	389	}
f16935f7	390	pESD->SetT0zVertex(zPosition); //vertex Z position
dc7ca31d	391	pESD->SetT0(timeStart); // interaction time
	392	pESD->SetT0time(time); // best TOF on each PMT
	393	pESD->SetT0amplitude(amp); // number of particles(MIPs) on each PMT
5325480c	394
f16935f7	395	AliDebug(1,Form(" Z position %f cm, T0 %f ps",zPosition , timeStart));
dc7ca31d	396
dc7ca31d	397	} // vertex in 3 sigma
	398
	399
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	403