[u/mrichter/AliRoot.git] / PHOS / AliPHOSDApi0mip.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.                  *
 **************************************************************************/
/* $Id$ */

// --
// --
// Implementation for TTree output in PHOS DA
// for calibrating energy by pi0 and MIP.
// --
// -- Author: Hisayuki Torii (Hiroshima Univ.)
// --

#include <stdio.h>
#include <iostream>
#include <math.h>
#include "AliLog.h"
#include "AliPHOSDApi0mip.h"
ClassImp(AliPHOSDApi0mip)
//----------------------------------------------------------------
AliPHOSDApi0mip::AliPHOSDApi0mip(int module,int iterid,char* fopt) :
  TNamed(), fCreateTree(false), fCreateHist(false), fMod(0), fIterId(0),
  fTFile(0), fTTree(0), fEvent(0), fEventClustered(0), fTime(0),
  fH1Time(0), fH1DigitNum(0), fH1ClusterNum(0),
  fH2EneDigitId(0), fH2MipDigitId(0), fH2Pi0DigitId(0), fH3Pi0AsymPt(0) {
  // Constructor

  char hname[1024], htitle[1024];
  sprintf(hname,"AliPHOSDApi0mip_mod%d_iter%d",module,iterid);
  SetName(hname);
  sprintf(htitle,"PHOS MIP/pi0 Calibration DA for Module:%d Iteration:%d",module,iterid);
  SetTitle(htitle);

  fMod = module;
  fIterId = iterid;
  fEvent = 0;
  fEventClustered = false;
  fTime = 0;
  fCreateTree = false;
  fCreateHist = false;

  char fname[1024];
  sprintf(fname,"AliPHOSDApi0mip_mod%d.root",module);
  fTFile = TFile::Open(fname,fopt);
}
//----------------------------------------------------------------
AliPHOSDApi0mip::AliPHOSDApi0mip(const AliPHOSDApi0mip& da):
  TNamed(da), fCreateTree(false), fCreateHist(false), fMod(da.fMod), fIterId(da.fIterId),
  fTFile(0), fTTree(0), fEvent(0), fEventClustered(0), fTime(0),
  fH1Time(0), fH1DigitNum(0), fH1ClusterNum(0),
  fH2EneDigitId(0), fH2MipDigitId(0), fH2Pi0DigitId(0), fH3Pi0AsymPt(0) {
  // Copy Constructor

  char fname[1024], hname[1024], htitle[1024];;
  sprintf(fname,"%s.root",GetName());
  fTFile = TFile::Open(fname,"RECREATE");
  fEvent = 0;
  fEventClustered = false;
  fTime = 0;

  if( da.fCreateHist ){
    fCreateHist = true;
    fH1Time = (TH1I*) da.fH1Time->Clone();
    fH1DigitNum = (TH1F*) da.fH1DigitNum->Clone();
    fH1ClusterNum = (TH1F*) da.fH1ClusterNum->Clone();
    fH2EneDigitId = (TH2F*) da.fH2EneDigitId->Clone();
    fH2MipDigitId = (TH2F*) da.fH2MipDigitId->Clone();
    fH2Pi0DigitId = (TH2F*) da.fH2Pi0DigitId->Clone();
    fH3Pi0AsymPt = (TH3F*) da.fH3Pi0AsymPt->Clone();
  } else {
    fCreateHist = false;
    fH1Time = 0;
    fH1DigitNum = 0;
    fH1ClusterNum = 0;
    fH2EneDigitId = 0;
    fH2MipDigitId = 0;
    fH2Pi0DigitId = 0;
    fH3Pi0AsymPt = 0;
  }
  if( da.fCreateTree ){
    // Create new ttree instead of copy.
    fCreateTree = true;
    sprintf(hname,"tevt_mod%d_iter%d",fMod,fIterId);
    sprintf(htitle,"Calibration for Module:%d Iteration:%d",fMod,fIterId);
    fTTree = new TTree(hname,htitle);
    fTTree->Branch("AliPHOSDATreeEvent","AliPHOSDATreeEvent",&fEvent);
  } else {
    fCreateTree = false;
    fTTree = 0;
  }
}
//-------------------------------------------------------------------
AliPHOSDApi0mip& AliPHOSDApi0mip::operator= (const AliPHOSDApi0mip&)
{
  // Operator= is not implemented yet
  AliFatal("Operator= is not implemented");  
  return *this;
}
//-------------------------------------------------------------------
AliPHOSDApi0mip::~AliPHOSDApi0mip(){
  // Destructor

  //std::cout<<" DEBUGDEBUG :: AliPHOSDApi0mip:: deconstructor "<<std::endl;
  if( fCreateHist ){
    fH1Time->Write(0,TObject::kOverwrite);
    fH1DigitNum->Write(0,TObject::kOverwrite);
    fH1ClusterNum->Write(0,TObject::kOverwrite);
    fH2EneDigitId->Write(0,TObject::kOverwrite);
    fH2MipDigitId->Write(0,TObject::kOverwrite);
    fH2Pi0DigitId->Write(0,TObject::kOverwrite);
    fH3Pi0AsymPt->Write(0,TObject::kOverwrite);
    delete fH1Time;
    delete fH1DigitNum;
    delete fH1ClusterNum;
    delete fH2EneDigitId;
    delete fH2MipDigitId;
    delete fH2Pi0DigitId;
    delete fH3Pi0AsymPt;
  }
  if( fCreateTree ){
    fTTree->Write();
  }
  if( fEvent ) delete fEvent;
  fTFile->Close();
  delete fTFile;
}
//-------------------------------------------------------------------
void AliPHOSDApi0mip::FillDigit(float adc,int row,int col){
  // Put new digit information in event
  //

  if( fEvent==0 ) fEvent = new AliPHOSDATreeEvent;
  float energy = adc * 0.005; // 5MeV/ch is fixed.
  if( energy > 0.020 ){  // Threshold at 20MeV.
    //std::cout<<" AliPHOSDApi0mip::AppendDigit() DEBUG:: (row,col)=("<<row<<","<<col<<") adc="<<adc<<" energy="<<energy<<std::endl;
    fEvent->Fill(energy,row,col);
  }
}
//-------------------------------------------------------------------
void AliPHOSDApi0mip::NewEvent(){
  // Initiator must be called in the beginning of event
  //

  if(fEvent) fEvent->Reset();
  fEventClustered = false;
}
//----------------------------------------------------------------
bool AliPHOSDApi0mip::CreateTree(){
  if(! fTFile ) {
    return false;
  }
  fTFile->cd();
  char hname[1024], htitle[1024];
  sprintf(hname,"trevt_mod%d_iter%d",fMod,fIterId);
  sprintf(htitle,"Calibration for Module:%d Iteration:%d",fMod,fIterId);
  fTTree = new TTree(hname,htitle);
  fTTree->Branch("AliPHOSDATreeEvent","AliPHOSDATreeEvent",&fEvent);
  fCreateTree = true;
  return true;
}
//----------------------------------------------------------------
bool AliPHOSDApi0mip::CreateHist(){
  // Create histogram routine called by the constructor only.

  char hname[1024], htitle[1024];

  sprintf(hname,"h1_time_mod%d_iter%d",fMod,fIterId);
  sprintf(htitle,"Time : Mod:%d Iter:%d",fMod,fIterId);
  fH1Time = (TH1I*) gDirectory->Get(hname);
  if( fH1Time>0 ){
    std::cout<<" AliPHOSDApi0mip:Warning!! Output object already exist : "<<fH1Time->GetName()<<std::endl;
    return false;
  }
  fH1Time = new TH1I(hname,htitle,2,0,2);

  sprintf(hname,"h1_digitnum_mod%d_iter%d",fMod,fIterId);
  sprintf(htitle,"Number of Digits : Mod:%d Iter:%d",fMod,fIterId);
  fH1DigitNum = new TH1F(hname,htitle,100,0,100);

  sprintf(hname,"h1_clusternum_mod%d_iter%d",fMod,fIterId);
  sprintf(htitle,"Number of Clusters : Mod:%d Iter:%d",fMod,fIterId);
  fH1ClusterNum = new TH1F(hname,htitle,100,0,100);

  sprintf(hname,"h2_pi0digitid_mod%d_iter%d",fMod,fIterId);
  sprintf(htitle,"PHOS pi0 mass vs Digit Id : Mod:%d Iter:%d",fMod,fIterId);
  fH2Pi0DigitId = new TH2F(hname,htitle,17920,0,17920,120,0,0.3);
      
  sprintf(hname,"h2_mipdigitid_mod%d_iter%d",fMod,fIterId);
  sprintf(htitle,"PHOS MIP vs Digit Id : Mod:%d Iter:%d",fMod,fIterId);
  fH2MipDigitId = new TH2F(hname,htitle,17920,0,17920,100,0-0.0025,0.5-0.0025);
  //fH2MipDigitId = new TH2F(hname,htitle,17920,0,17920,50,0.5,1.5);

  sprintf(hname,"h2_enedigitid_mod%d_iter%d",fMod,fIterId);
  sprintf(htitle,"PHOS MIP vs Digit Id : Mod:%d Iter:%d",fMod,fIterId);
  //fH2EneDigitId = new TH2F(hname,htitle,17920,0,17920,100,0-0.0025,0.5-0.0025);
  fH2EneDigitId = new TH2F(hname,htitle,17920,0,17920,50,0,5.0);

  sprintf(hname,"h3_pi0asympt_mod%d_iter%d",fMod,fIterId);
  sprintf(htitle,"PHOS pi0 mass vs pT vs Asym : Mod:%d Iter:%d",fMod,fIterId);
  fH3Pi0AsymPt = new TH3F(hname,htitle,20,0,1,20,0,10,200,0,1);

  fCreateHist = true;
  return true;
}
//-------------------------------------------------------------------
void AliPHOSDApi0mip::FillTree(AliPHOSDATreeEvent* event){
  // Fill all information (AliPHOSDATreeEvent) into TTree
  // if event==NULL, the obtained information (=fEvent) is used.

  if(! fCreateTree ) CreateTree();
  if( event == 0 ){
    if( fEvent == 0 ){
      fEvent = new AliPHOSDATreeEvent();
    }
    // No need to make clustering for tree saving.
    //if(! fEventClustered ){
    //fEvent->ExecuteClustering();
    //fEventClustered = true;
    //}
    fEvent->SetTime(fTime);
    fTTree->Fill();
  } else {
    if( fEvent ) delete fEvent;
    fEvent = event;
    fTTree->Fill();
    fEvent = 0;
  }
}
//-------------------------------------------------------------------
void AliPHOSDApi0mip::FillHist(AliPHOSDATreeEvent* event){
  // Fill all information (AliPHOSDATreeEvent) into histograms
  // if event==NULL, the obtained information (=fEvent) is used.

  if(! fCreateHist ) CreateHist();
  if( event == 0 ){
    if( fEvent==0 ) fEvent = new AliPHOSDATreeEvent;
    if(! fEventClustered ){
      fEvent->ExecuteClustering();
      fEventClustered = true;
    }
    fEvent->SetTime(fTime);
    event = fEvent;
  }

  // -- Constant
  int nclt1, nclt2;
  int ndigits;
  int ndigitsall = 0;
  AliPHOSDATreeDigit digit1, digit2;
  const float kDistanceFromVertex = 460.;
  float dist1, dist2, px, py;
  float mass, cosine, pt, asym;

  // -- Filling into Time Histogram
  double start = fH1Time->GetBinContent(1);
  double stop = fH1Time->GetBinContent(2);
  double currenttime = (double) (event->GetTime());
  if( start == 0 && stop == 0 ) start = stop = currenttime;
  if( currenttime < start ) start = currenttime;
  if( currenttime > stop ) stop = currenttime;
  fH1Time->SetBinContent(1,start);
  fH1Time->SetBinContent(2,stop);

  // -- Start looping clusters
  nclt1 = event->GetNClusters();
  fH1ClusterNum->Fill(nclt1);
  //std::cout<<" AliPHOSDApi0mip::FillHisto() DEBUG:: Number of clusters: "<<nclt1<<std::endl;
  while( nclt1-- ){
    AliPHOSDATreeCluster& clt1 = event->GetCluster(nclt1);
    ndigits = clt1.GetNDigits();
    while( ndigits-- ){
      AliPHOSDATreeDigit& digit = clt1.GetDigit(ndigits);
      fH2EneDigitId->Fill(digit.GetDigitId(),digit.GetEnergy());
      ndigitsall++;
    }
    digit1 = clt1.GetMaxDigit();
    if( clt1.GetEnergy() > 0 && clt1.GetNDigits() >= 2 ){
      fH2MipDigitId->Fill(digit1.GetDigitId(),clt1.GetEnergy());
    }
    if( clt1.GetEnergy() > 0.2 ){
      nclt2 = nclt1;
      while( nclt2-- ){
	AliPHOSDATreeCluster& clt2 = event->GetCluster(nclt2);
	digit2 = clt2.GetMaxDigit();
	if( clt2.GetEnergy() > 0.2 ){
	  // 
	  // Following approximation is applied in order to avoid many calling "sqrt" function.
	  // sqrt( 1 + x^2 ) =~ 1 + 0.5x^2 (for x<<1)
	  //
	  //cosine = ((clt1.GetRow()-31.5)*(clt2.GetRow()-31.5)*4.84 + (clt1.GetCol()-27.5)*(clt2.GetCol()-27.5)*4.84 + kDistanceFromVertex*kDistanceFromVertex)
	  //	    / ( kDistanceFromVertex + (clt1.GetRow()-31.5)*(clt1.GetRow()-31.5)*2.42/kDistanceFromVertex + (clt1.GetCol()-27.5)*(clt1.GetCol()-27.5)*2.42/kDistanceFromVertex )
	  //	    / ( kDistanceFromVertex + (clt2.GetRow()-31.5)*(clt2.GetRow()-31.5)*2.42/kDistanceFromVertex + (clt2.GetCol()-27.5)*(clt2.GetCol()-27.5)*2.42/kDistanceFromVertex );
	  //
	  

	  dist1 = sqrt( kDistanceFromVertex*kDistanceFromVertex + (clt1.GetRow()-31.5)*(clt1.GetRow()-31.5)*4.84 + (clt1.GetCol()-27.5)*(clt1.GetCol()-27.5)*4.84 );
	  dist2 = sqrt( kDistanceFromVertex*kDistanceFromVertex + (clt2.GetRow()-31.5)*(clt2.GetRow()-31.5)*4.84 + (clt2.GetCol()-27.5)*(clt2.GetCol()-27.5)*4.84 );
	  cosine = ((clt1.GetRow()-31.5)*(clt2.GetRow()-31.5)*4.84 + (clt1.GetCol()-27.5)*(clt2.GetCol()-27.5)*4.84 + kDistanceFromVertex*kDistanceFromVertex)
	    / dist1 / dist2;
	  mass = sqrt( 2.0 * clt1.GetEnergy() * clt2.GetEnergy() * (1 - cosine) );
	  //std::cout<<" DEBUG: dist1:"<<dist1<<" dist2:"<<dist2<<" cosine:"<<cosine<<" c1:"<<clt1.GetEnergy()<<" c2:"<<clt2.GetEnergy()<<" mass:"<<mass<<std::endl;
	  //std::cout<<"      : clt1(row,col)=("<<clt1.GetRow()<<","<<clt1.GetCol()<<") clt2(row,col)=("<<clt2.GetRow()<<","<<clt2.GetCol()<<") "<<std::endl;
	  asym = fabs(clt1.GetEnergy() - clt2.GetEnergy())/(clt1.GetEnergy() + clt2.GetEnergy());
	  py = clt1.GetEnergy() * kDistanceFromVertex / dist1 + clt2.GetEnergy() * kDistanceFromVertex / dist2;
	  px = clt1.GetEnergy() * (clt1.GetCol()-27.5)*2.42/dist1 + clt2.GetEnergy() * (clt2.GetCol()-27.5)*2.42/ dist2;
	  pt = sqrt(px*px+py*py);
	  fH3Pi0AsymPt->Fill(asym,pt,mass);
	  if( digit1.IsValid() && digit1.IsValid() &&
	      digit1.GetDigitId() != digit2.GetDigitId() &&
	      //pt > 1.5 && clt1.GetEnergy() > 0.3 && clt2.GetEnergy() > 0.3 ){
	      //pt > 1.3 && clt1.GetEnergy() > 0.25 && clt2.GetEnergy() > 0.25 ){
	      pt > 1.0 && clt1.GetEnergy() > 0.2 && clt2.GetEnergy() > 0.2 ){
	    fH2Pi0DigitId->Fill(digit1.GetDigitId(),mass);
	    fH2Pi0DigitId->Fill(digit2.GetDigitId(),mass);
	  }
	} // End of energy cut
      } // End of second cluster loop (clt2)
    } // End of energy cut
  } // End of first cluster loop (clt1)
  fH1DigitNum->Fill(ndigitsall);
  //
}
//-------------------------------------------------------------------
void AliPHOSDApi0mip::Print(Option_t *option) const
{
  // Print Out

  //fTFile->ls();
  //fTTree->Print();
  if( fEvent ){
    //fEvent->ExecuteClustering();
    fEvent->Print(option);
  }
}
//-------------------------------------------------------------------
Commit	Line	Data
c335b3c5	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	**************************************************************************/
e7386040	15	/* $Id$ */
c335b3c5	16
12f6dd57	17	// --
	18	// --
	19	// Implementation for TTree output in PHOS DA
	20	// for calibrating energy by pi0 and MIP.
	21	// --
	22	// -- Author: Hisayuki Torii (Hiroshima Univ.)
	23	// --
	24
	25	#include <stdio.h>
	26	#include <iostream>
	27	#include <math.h>
c335b3c5	28	#include "AliLog.h"
12f6dd57	29	#include "AliPHOSDApi0mip.h"
	30	ClassImp(AliPHOSDApi0mip)
	31	//----------------------------------------------------------------
	32	AliPHOSDApi0mip::AliPHOSDApi0mip(int module,int iterid,char* fopt) :
	33	TNamed(), fCreateTree(false), fCreateHist(false), fMod(0), fIterId(0),
	34	fTFile(0), fTTree(0), fEvent(0), fEventClustered(0), fTime(0),
	35	fH1Time(0), fH1DigitNum(0), fH1ClusterNum(0),
	36	fH2EneDigitId(0), fH2MipDigitId(0), fH2Pi0DigitId(0), fH3Pi0AsymPt(0) {
	37	// Constructor
	38
	39	char hname[1024], htitle[1024];
	40	sprintf(hname,"AliPHOSDApi0mip_mod%d_iter%d",module,iterid);
	41	SetName(hname);
	42	sprintf(htitle,"PHOS MIP/pi0 Calibration DA for Module:%d Iteration:%d",module,iterid);
	43	SetTitle(htitle);
	44
	45	fMod = module;
	46	fIterId = iterid;
	47	fEvent = 0;
	48	fEventClustered = false;
	49	fTime = 0;
	50	fCreateTree = false;
	51	fCreateHist = false;
	52
	53	char fname[1024];
	54	sprintf(fname,"AliPHOSDApi0mip_mod%d.root",module);
	55	fTFile = TFile::Open(fname,fopt);
	56	}
	57	//----------------------------------------------------------------
	58	AliPHOSDApi0mip::AliPHOSDApi0mip(const AliPHOSDApi0mip& da):
	59	TNamed(da), fCreateTree(false), fCreateHist(false), fMod(da.fMod), fIterId(da.fIterId),
	60	fTFile(0), fTTree(0), fEvent(0), fEventClustered(0), fTime(0),
	61	fH1Time(0), fH1DigitNum(0), fH1ClusterNum(0),
	62	fH2EneDigitId(0), fH2MipDigitId(0), fH2Pi0DigitId(0), fH3Pi0AsymPt(0) {
	63	// Copy Constructor
	64
	65	char fname[1024], hname[1024], htitle[1024];;
	66	sprintf(fname,"%s.root",GetName());
	67	fTFile = TFile::Open(fname,"RECREATE");
	68	fEvent = 0;
	69	fEventClustered = false;
	70	fTime = 0;
	71
	72	if( da.fCreateHist ){
	73	fCreateHist = true;
	74	fH1Time = (TH1I*) da.fH1Time->Clone();
	75	fH1DigitNum = (TH1F*) da.fH1DigitNum->Clone();
	76	fH1ClusterNum = (TH1F*) da.fH1ClusterNum->Clone();
	77	fH2EneDigitId = (TH2F*) da.fH2EneDigitId->Clone();
	78	fH2MipDigitId = (TH2F*) da.fH2MipDigitId->Clone();
	79	fH2Pi0DigitId = (TH2F*) da.fH2Pi0DigitId->Clone();
	80	fH3Pi0AsymPt = (TH3F*) da.fH3Pi0AsymPt->Clone();
	81	} else {
	82	fCreateHist = false;
	83	fH1Time = 0;
	84	fH1DigitNum = 0;
	85	fH1ClusterNum = 0;
	86	fH2EneDigitId = 0;
	87	fH2MipDigitId = 0;
	88	fH2Pi0DigitId = 0;
	89	fH3Pi0AsymPt = 0;
	90	}
	91	if( da.fCreateTree ){
	92	// Create new ttree instead of copy.
93	fCreateTree = true;
94	sprintf(hname,"tevt_mod%d_iter%d",fMod,fIterId);
95	sprintf(htitle,"Calibration for Module:%d Iteration:%d",fMod,fIterId);
96	fTTree = new TTree(hname,htitle);
97	fTTree->Branch("AliPHOSDATreeEvent","AliPHOSDATreeEvent",&fEvent);
98	} else {
99	fCreateTree = false;
100	fTTree = 0;
101	}
102	}
103	//-------------------------------------------------------------------
c335b3c5	104	AliPHOSDApi0mip& AliPHOSDApi0mip::operator= (const AliPHOSDApi0mip&)
	105	{
	106	// Operator= is not implemented yet
	107	AliFatal("Operator= is not implemented");
	108	return *this;
	109	}
	110	//-------------------------------------------------------------------
12f6dd57	111	AliPHOSDApi0mip::~AliPHOSDApi0mip(){
	112	// Destructor
	113
	114	//std::cout<<" DEBUGDEBUG :: AliPHOSDApi0mip:: deconstructor "<<std::endl;
	115	if( fCreateHist ){
	116	fH1Time->Write(0,TObject::kOverwrite);
	117	fH1DigitNum->Write(0,TObject::kOverwrite);
	118	fH1ClusterNum->Write(0,TObject::kOverwrite);
	119	fH2EneDigitId->Write(0,TObject::kOverwrite);
	120	fH2MipDigitId->Write(0,TObject::kOverwrite);
	121	fH2Pi0DigitId->Write(0,TObject::kOverwrite);
	122	fH3Pi0AsymPt->Write(0,TObject::kOverwrite);
	123	delete fH1Time;
	124	delete fH1DigitNum;
	125	delete fH1ClusterNum;
	126	delete fH2EneDigitId;
	127	delete fH2MipDigitId;
	128	delete fH2Pi0DigitId;
	129	delete fH3Pi0AsymPt;
	130	}
	131	if( fCreateTree ){
	132	fTTree->Write();
	133	}
	134	if( fEvent ) delete fEvent;
	135	fTFile->Close();
	136	delete fTFile;
	137	}
	138	//-------------------------------------------------------------------
	139	void AliPHOSDApi0mip::FillDigit(float adc,int row,int col){
	140	// Put new digit information in event
	141	//
	142
	143	if( fEvent==0 ) fEvent = new AliPHOSDATreeEvent;
	144	float energy = adc * 0.005; // 5MeV/ch is fixed.
	145	if( energy > 0.020 ){ // Threshold at 20MeV.
	146	//std::cout<<" AliPHOSDApi0mip::AppendDigit() DEBUG:: (row,col)=("<<row<<","<<col<<") adc="<<adc<<" energy="<<energy<<std::endl;
	147	fEvent->Fill(energy,row,col);
	148	}
	149	}
	150	//-------------------------------------------------------------------
	151	void AliPHOSDApi0mip::NewEvent(){
	152	// Initiator must be called in the beginning of event
	153	//
	154
	155	if(fEvent) fEvent->Reset();
	156	fEventClustered = false;
	157	}
	158	//----------------------------------------------------------------
	159	bool AliPHOSDApi0mip::CreateTree(){
	160	if(! fTFile ) {
	161	return false;
	162	}
	163	fTFile->cd();
	164	char hname[1024], htitle[1024];
	165	sprintf(hname,"trevt_mod%d_iter%d",fMod,fIterId);
	166	sprintf(htitle,"Calibration for Module:%d Iteration:%d",fMod,fIterId);
	167	fTTree = new TTree(hname,htitle);
	168	fTTree->Branch("AliPHOSDATreeEvent","AliPHOSDATreeEvent",&fEvent);
	169	fCreateTree = true;
	170	return true;
	171	}
	172	//----------------------------------------------------------------
	173	bool AliPHOSDApi0mip::CreateHist(){
	174	// Create histogram routine called by the constructor only.
175
176	char hname[1024], htitle[1024];
177
178	sprintf(hname,"h1_time_mod%d_iter%d",fMod,fIterId);
179	sprintf(htitle,"Time : Mod:%d Iter:%d",fMod,fIterId);
180	fH1Time = (TH1I*) gDirectory->Get(hname);
181	if( fH1Time>0 ){
182	std::cout<<" AliPHOSDApi0mip:Warning!! Output object already exist : "<<fH1Time->GetName()<<std::endl;
183	return false;
184	}
185	fH1Time = new TH1I(hname,htitle,2,0,2);
186
187	sprintf(hname,"h1_digitnum_mod%d_iter%d",fMod,fIterId);
188	sprintf(htitle,"Number of Digits : Mod:%d Iter:%d",fMod,fIterId);
189	fH1DigitNum = new TH1F(hname,htitle,100,0,100);
190
191	sprintf(hname,"h1_clusternum_mod%d_iter%d",fMod,fIterId);
192	sprintf(htitle,"Number of Clusters : Mod:%d Iter:%d",fMod,fIterId);
193	fH1ClusterNum = new TH1F(hname,htitle,100,0,100);
194
195	sprintf(hname,"h2_pi0digitid_mod%d_iter%d",fMod,fIterId);
196	sprintf(htitle,"PHOS pi0 mass vs Digit Id : Mod:%d Iter:%d",fMod,fIterId);
197	fH2Pi0DigitId = new TH2F(hname,htitle,17920,0,17920,120,0,0.3);
198
199	sprintf(hname,"h2_mipdigitid_mod%d_iter%d",fMod,fIterId);
200	sprintf(htitle,"PHOS MIP vs Digit Id : Mod:%d Iter:%d",fMod,fIterId);
201	fH2MipDigitId = new TH2F(hname,htitle,17920,0,17920,100,0-0.0025,0.5-0.0025);
202	//fH2MipDigitId = new TH2F(hname,htitle,17920,0,17920,50,0.5,1.5);
203
204	sprintf(hname,"h2_enedigitid_mod%d_iter%d",fMod,fIterId);
205	sprintf(htitle,"PHOS MIP vs Digit Id : Mod:%d Iter:%d",fMod,fIterId);
206	//fH2EneDigitId = new TH2F(hname,htitle,17920,0,17920,100,0-0.0025,0.5-0.0025);
207	fH2EneDigitId = new TH2F(hname,htitle,17920,0,17920,50,0,5.0);
208
209	sprintf(hname,"h3_pi0asympt_mod%d_iter%d",fMod,fIterId);
210	sprintf(htitle,"PHOS pi0 mass vs pT vs Asym : Mod:%d Iter:%d",fMod,fIterId);
211	fH3Pi0AsymPt = new TH3F(hname,htitle,20,0,1,20,0,10,200,0,1);
212
213	fCreateHist = true;
214	return true;
215	}
216	//-------------------------------------------------------------------
217	void AliPHOSDApi0mip::FillTree(AliPHOSDATreeEvent* event){
218	// Fill all information (AliPHOSDATreeEvent) into TTree
219	// if event==NULL, the obtained information (=fEvent) is used.
220
221	if(! fCreateTree ) CreateTree();
222	if( event == 0 ){
223	if( fEvent == 0 ){
224	fEvent = new AliPHOSDATreeEvent();
225	}
226	// No need to make clustering for tree saving.
227	//if(! fEventClustered ){
228	//fEvent->ExecuteClustering();
229	//fEventClustered = true;
230	//}
231	fEvent->SetTime(fTime);
232	fTTree->Fill();
233	} else {
234	if( fEvent ) delete fEvent;
235	fEvent = event;
236	fTTree->Fill();
237	fEvent = 0;
238	}
239	}
240	//-------------------------------------------------------------------
241	void AliPHOSDApi0mip::FillHist(AliPHOSDATreeEvent* event){
242	// Fill all information (AliPHOSDATreeEvent) into histograms
243	// if event==NULL, the obtained information (=fEvent) is used.
244
245	if(! fCreateHist ) CreateHist();
246	if( event == 0 ){
247	if( fEvent==0 ) fEvent = new AliPHOSDATreeEvent;
248	if(! fEventClustered ){
249	fEvent->ExecuteClustering();
250	fEventClustered = true;
251	}
252	fEvent->SetTime(fTime);
253	event = fEvent;
254	}
255
256	// -- Constant
257	int nclt1, nclt2;
258	int ndigits;
259	int ndigitsall = 0;
260	AliPHOSDATreeDigit digit1, digit2;
261	const float kDistanceFromVertex = 460.;
262	float dist1, dist2, px, py;
263	float mass, cosine, pt, asym;
264
265	// -- Filling into Time Histogram
266	double start = fH1Time->GetBinContent(1);
267	double stop = fH1Time->GetBinContent(2);
268	double currenttime = (double) (event->GetTime());
269	if( start == 0 && stop == 0 ) start = stop = currenttime;
270	if( currenttime < start ) start = currenttime;
271	if( currenttime > stop ) stop = currenttime;
272	fH1Time->SetBinContent(1,start);
273	fH1Time->SetBinContent(2,stop);
274
275	// -- Start looping clusters
276	nclt1 = event->GetNClusters();
277	fH1ClusterNum->Fill(nclt1);
278	//std::cout<<" AliPHOSDApi0mip::FillHisto() DEBUG:: Number of clusters: "<<nclt1<<std::endl;
279	while( nclt1-- ){
280	AliPHOSDATreeCluster& clt1 = event->GetCluster(nclt1);
281	ndigits = clt1.GetNDigits();
282	while( ndigits-- ){
283	AliPHOSDATreeDigit& digit = clt1.GetDigit(ndigits);
284	fH2EneDigitId->Fill(digit.GetDigitId(),digit.GetEnergy());
285	ndigitsall++;
286	}
287	digit1 = clt1.GetMaxDigit();
288	if( clt1.GetEnergy() > 0 && clt1.GetNDigits() >= 2 ){
289	fH2MipDigitId->Fill(digit1.GetDigitId(),clt1.GetEnergy());
290	}
291	if( clt1.GetEnergy() > 0.2 ){
292	nclt2 = nclt1;
293	while( nclt2-- ){
294	AliPHOSDATreeCluster& clt2 = event->GetCluster(nclt2);
295	digit2 = clt2.GetMaxDigit();
296	if( clt2.GetEnergy() > 0.2 ){
297	//
298	// Following approximation is applied in order to avoid many calling "sqrt" function.
299	// sqrt( 1 + x^2 ) =~ 1 + 0.5x^2 (for x<<1)
300	//
301	//cosine = ((clt1.GetRow()-31.5)(clt2.GetRow()-31.5)4.84 + (clt1.GetCol()-27.5)(clt2.GetCol()-27.5)4.84 + kDistanceFromVertex*kDistanceFromVertex)
302	// / ( kDistanceFromVertex + (clt1.GetRow()-31.5)(clt1.GetRow()-31.5)2.42/kDistanceFromVertex + (clt1.GetCol()-27.5)(clt1.GetCol()-27.5)2.42/kDistanceFromVertex )
303	// / ( kDistanceFromVertex + (clt2.GetRow()-31.5)(clt2.GetRow()-31.5)2.42/kDistanceFromVertex + (clt2.GetCol()-27.5)(clt2.GetCol()-27.5)2.42/kDistanceFromVertex );
304	//
305
306
307	dist1 = sqrt( kDistanceFromVertexkDistanceFromVertex + (clt1.GetRow()-31.5)(clt1.GetRow()-31.5)4.84 + (clt1.GetCol()-27.5)(clt1.GetCol()-27.5)*4.84 );
308	dist2 = sqrt( kDistanceFromVertexkDistanceFromVertex + (clt2.GetRow()-31.5)(clt2.GetRow()-31.5)4.84 + (clt2.GetCol()-27.5)(clt2.GetCol()-27.5)*4.84 );
309	cosine = ((clt1.GetRow()-31.5)(clt2.GetRow()-31.5)4.84 + (clt1.GetCol()-27.5)(clt2.GetCol()-27.5)4.84 + kDistanceFromVertex*kDistanceFromVertex)
310	/ dist1 / dist2;
311	mass = sqrt( 2.0 * clt1.GetEnergy() * clt2.GetEnergy() * (1 - cosine) );
312	//std::cout<<" DEBUG: dist1:"<<dist1<<" dist2:"<<dist2<<" cosine:"<<cosine<<" c1:"<<clt1.GetEnergy()<<" c2:"<<clt2.GetEnergy()<<" mass:"<<mass<<std::endl;
313	//std::cout<<" : clt1(row,col)=("<<clt1.GetRow()<<","<<clt1.GetCol()<<") clt2(row,col)=("<<clt2.GetRow()<<","<<clt2.GetCol()<<") "<<std::endl;
314	asym = fabs(clt1.GetEnergy() - clt2.GetEnergy())/(clt1.GetEnergy() + clt2.GetEnergy());
315	py = clt1.GetEnergy() * kDistanceFromVertex / dist1 + clt2.GetEnergy() * kDistanceFromVertex / dist2;
316	px = clt1.GetEnergy() * (clt1.GetCol()-27.5)2.42/dist1 + clt2.GetEnergy() (clt2.GetCol()-27.5)*2.42/ dist2;
317	pt = sqrt(pxpx+pypy);
318	fH3Pi0AsymPt->Fill(asym,pt,mass);
319	if( digit1.IsValid() && digit1.IsValid() &&
320	digit1.GetDigitId() != digit2.GetDigitId() &&
321	//pt > 1.5 && clt1.GetEnergy() > 0.3 && clt2.GetEnergy() > 0.3 ){
322	//pt > 1.3 && clt1.GetEnergy() > 0.25 && clt2.GetEnergy() > 0.25 ){
323	pt > 1.0 && clt1.GetEnergy() > 0.2 && clt2.GetEnergy() > 0.2 ){
324	fH2Pi0DigitId->Fill(digit1.GetDigitId(),mass);
325	fH2Pi0DigitId->Fill(digit2.GetDigitId(),mass);
326	}
327	} // End of energy cut
328	} // End of second cluster loop (clt2)
329	} // End of energy cut
330	} // End of first cluster loop (clt1)
331	fH1DigitNum->Fill(ndigitsall);
332	//
333	}
334	//-------------------------------------------------------------------
c335b3c5	335	void AliPHOSDApi0mip::Print(Option_t *option) const
c335b3c5	336	{
12f6dd57	337	// Print Out
	338
	339	//fTFile->ls();
	340	//fTTree->Print();
	341	if( fEvent ){
	342	//fEvent->ExecuteClustering();
c335b3c5	343	fEvent->Print(option);
12f6dd57	344	}
	345	}
	346	//-------------------------------------------------------------------