[u/mrichter/AliRoot.git] / PHOS / AliPHOSDApi0mip.cxx

// --
// --
// 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 "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(){
  // 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(char* opt){
  // Print Out

  //fTFile->ls();
  //fTTree->Print();
  if( fEvent ){
    //fEvent->ExecuteClustering();
    fEvent->Print(opt);
  }
}
//-------------------------------------------------------------------
Commit	Line	Data
12f6dd57	1	// --
	2	// --
	3	// Implementation for TTree output in PHOS DA
	4	// for calibrating energy by pi0 and MIP.
	5	// --
	6	// -- Author: Hisayuki Torii (Hiroshima Univ.)
	7	// --
	8
	9	#include <stdio.h>
	10	#include <iostream>
	11	#include <math.h>
	12	#include "AliPHOSDApi0mip.h"
	13	ClassImp(AliPHOSDApi0mip)
	14	//----------------------------------------------------------------
	15	AliPHOSDApi0mip::AliPHOSDApi0mip(int module,int iterid,char* fopt) :
	16	TNamed(), fCreateTree(false), fCreateHist(false), fMod(0), fIterId(0),
	17	fTFile(0), fTTree(0), fEvent(0), fEventClustered(0), fTime(0),
	18	fH1Time(0), fH1DigitNum(0), fH1ClusterNum(0),
	19	fH2EneDigitId(0), fH2MipDigitId(0), fH2Pi0DigitId(0), fH3Pi0AsymPt(0) {
	20	// Constructor
	21
	22	char hname[1024], htitle[1024];
	23	sprintf(hname,"AliPHOSDApi0mip_mod%d_iter%d",module,iterid);
	24	SetName(hname);
	25	sprintf(htitle,"PHOS MIP/pi0 Calibration DA for Module:%d Iteration:%d",module,iterid);
	26	SetTitle(htitle);
	27
	28	fMod = module;
	29	fIterId = iterid;
	30	fEvent = 0;
	31	fEventClustered = false;
	32	fTime = 0;
	33	fCreateTree = false;
	34	fCreateHist = false;
	35
	36	char fname[1024];
	37	sprintf(fname,"AliPHOSDApi0mip_mod%d.root",module);
	38	fTFile = TFile::Open(fname,fopt);
	39	}
	40	//----------------------------------------------------------------
	41	AliPHOSDApi0mip::AliPHOSDApi0mip(const AliPHOSDApi0mip& da):
	42	TNamed(da), fCreateTree(false), fCreateHist(false), fMod(da.fMod), fIterId(da.fIterId),
	43	fTFile(0), fTTree(0), fEvent(0), fEventClustered(0), fTime(0),
	44	fH1Time(0), fH1DigitNum(0), fH1ClusterNum(0),
	45	fH2EneDigitId(0), fH2MipDigitId(0), fH2Pi0DigitId(0), fH3Pi0AsymPt(0) {
	46	// Copy Constructor
	47
	48	char fname[1024], hname[1024], htitle[1024];;
	49	sprintf(fname,"%s.root",GetName());
	50	fTFile = TFile::Open(fname,"RECREATE");
	51	fEvent = 0;
	52	fEventClustered = false;
	53	fTime = 0;
	54
	55	if( da.fCreateHist ){
	56	fCreateHist = true;
	57	fH1Time = (TH1I*) da.fH1Time->Clone();
	58	fH1DigitNum = (TH1F*) da.fH1DigitNum->Clone();
	59	fH1ClusterNum = (TH1F*) da.fH1ClusterNum->Clone();
	60	fH2EneDigitId = (TH2F*) da.fH2EneDigitId->Clone();
	61	fH2MipDigitId = (TH2F*) da.fH2MipDigitId->Clone();
	62	fH2Pi0DigitId = (TH2F*) da.fH2Pi0DigitId->Clone();
	63	fH3Pi0AsymPt = (TH3F*) da.fH3Pi0AsymPt->Clone();
	64	} else {
65	fCreateHist = false;
66	fH1Time = 0;
67	fH1DigitNum = 0;
68	fH1ClusterNum = 0;
69	fH2EneDigitId = 0;
70	fH2MipDigitId = 0;
71	fH2Pi0DigitId = 0;
72	fH3Pi0AsymPt = 0;
73	}
74	if( da.fCreateTree ){
75	// Create new ttree instead of copy.
76	fCreateTree = true;
77	sprintf(hname,"tevt_mod%d_iter%d",fMod,fIterId);
78	sprintf(htitle,"Calibration for Module:%d Iteration:%d",fMod,fIterId);
79	fTTree = new TTree(hname,htitle);
80	fTTree->Branch("AliPHOSDATreeEvent","AliPHOSDATreeEvent",&fEvent);
81	} else {
82	fCreateTree = false;
83	fTTree = 0;
84	}
85	}
86	//-------------------------------------------------------------------
87	AliPHOSDApi0mip::~AliPHOSDApi0mip(){
88	// Destructor
89
90	//std::cout<<" DEBUGDEBUG :: AliPHOSDApi0mip:: deconstructor "<<std::endl;
91	if( fCreateHist ){
92	fH1Time->Write(0,TObject::kOverwrite);
93	fH1DigitNum->Write(0,TObject::kOverwrite);
94	fH1ClusterNum->Write(0,TObject::kOverwrite);
95	fH2EneDigitId->Write(0,TObject::kOverwrite);
96	fH2MipDigitId->Write(0,TObject::kOverwrite);
97	fH2Pi0DigitId->Write(0,TObject::kOverwrite);
98	fH3Pi0AsymPt->Write(0,TObject::kOverwrite);
99	delete fH1Time;
100	delete fH1DigitNum;
101	delete fH1ClusterNum;
102	delete fH2EneDigitId;
103	delete fH2MipDigitId;
104	delete fH2Pi0DigitId;
105	delete fH3Pi0AsymPt;
106	}
107	if( fCreateTree ){
108	fTTree->Write();
109	}
110	if( fEvent ) delete fEvent;
111	fTFile->Close();
112	delete fTFile;
113	}
114	//-------------------------------------------------------------------
115	void AliPHOSDApi0mip::FillDigit(float adc,int row,int col){
116	// Put new digit information in event
117	//
118
119	if( fEvent==0 ) fEvent = new AliPHOSDATreeEvent;
120	float energy = adc * 0.005; // 5MeV/ch is fixed.
121	if( energy > 0.020 ){ // Threshold at 20MeV.
122	//std::cout<<" AliPHOSDApi0mip::AppendDigit() DEBUG:: (row,col)=("<<row<<","<<col<<") adc="<<adc<<" energy="<<energy<<std::endl;
123	fEvent->Fill(energy,row,col);
124	}
125	}
126	//-------------------------------------------------------------------
127	void AliPHOSDApi0mip::NewEvent(){
128	// Initiator must be called in the beginning of event
129	//
130
131	if(fEvent) fEvent->Reset();
132	fEventClustered = false;
133	}
134	//----------------------------------------------------------------
135	bool AliPHOSDApi0mip::CreateTree(){
136	if(! fTFile ) {
137	return false;
138	}
139	fTFile->cd();
140	char hname[1024], htitle[1024];
141	sprintf(hname,"trevt_mod%d_iter%d",fMod,fIterId);
142	sprintf(htitle,"Calibration for Module:%d Iteration:%d",fMod,fIterId);
143	fTTree = new TTree(hname,htitle);
144	fTTree->Branch("AliPHOSDATreeEvent","AliPHOSDATreeEvent",&fEvent);
145	fCreateTree = true;
146	return true;
147	}
148	//----------------------------------------------------------------
149	bool AliPHOSDApi0mip::CreateHist(){
150	// Create histogram routine called by the constructor only.
151
152	char hname[1024], htitle[1024];
153
154	sprintf(hname,"h1_time_mod%d_iter%d",fMod,fIterId);
155	sprintf(htitle,"Time : Mod:%d Iter:%d",fMod,fIterId);
156	fH1Time = (TH1I*) gDirectory->Get(hname);
157	if( fH1Time>0 ){
158	std::cout<<" AliPHOSDApi0mip:Warning!! Output object already exist : "<<fH1Time->GetName()<<std::endl;
159	return false;
160	}
161	fH1Time = new TH1I(hname,htitle,2,0,2);
162
163	sprintf(hname,"h1_digitnum_mod%d_iter%d",fMod,fIterId);
164	sprintf(htitle,"Number of Digits : Mod:%d Iter:%d",fMod,fIterId);
165	fH1DigitNum = new TH1F(hname,htitle,100,0,100);
166
167	sprintf(hname,"h1_clusternum_mod%d_iter%d",fMod,fIterId);
168	sprintf(htitle,"Number of Clusters : Mod:%d Iter:%d",fMod,fIterId);
169	fH1ClusterNum = new TH1F(hname,htitle,100,0,100);
170
171	sprintf(hname,"h2_pi0digitid_mod%d_iter%d",fMod,fIterId);
172	sprintf(htitle,"PHOS pi0 mass vs Digit Id : Mod:%d Iter:%d",fMod,fIterId);
173	fH2Pi0DigitId = new TH2F(hname,htitle,17920,0,17920,120,0,0.3);
174
175	sprintf(hname,"h2_mipdigitid_mod%d_iter%d",fMod,fIterId);
176	sprintf(htitle,"PHOS MIP vs Digit Id : Mod:%d Iter:%d",fMod,fIterId);
177	fH2MipDigitId = new TH2F(hname,htitle,17920,0,17920,100,0-0.0025,0.5-0.0025);
178	//fH2MipDigitId = new TH2F(hname,htitle,17920,0,17920,50,0.5,1.5);
179
180	sprintf(hname,"h2_enedigitid_mod%d_iter%d",fMod,fIterId);
181	sprintf(htitle,"PHOS MIP vs Digit Id : Mod:%d Iter:%d",fMod,fIterId);
182	//fH2EneDigitId = new TH2F(hname,htitle,17920,0,17920,100,0-0.0025,0.5-0.0025);
183	fH2EneDigitId = new TH2F(hname,htitle,17920,0,17920,50,0,5.0);
184
185	sprintf(hname,"h3_pi0asympt_mod%d_iter%d",fMod,fIterId);
186	sprintf(htitle,"PHOS pi0 mass vs pT vs Asym : Mod:%d Iter:%d",fMod,fIterId);
187	fH3Pi0AsymPt = new TH3F(hname,htitle,20,0,1,20,0,10,200,0,1);
188
189	fCreateHist = true;
190	return true;
191	}
192	//-------------------------------------------------------------------
193	void AliPHOSDApi0mip::FillTree(AliPHOSDATreeEvent* event){
194	// Fill all information (AliPHOSDATreeEvent) into TTree
195	// if event==NULL, the obtained information (=fEvent) is used.
196
197	if(! fCreateTree ) CreateTree();
198	if( event == 0 ){
199	if( fEvent == 0 ){
200	fEvent = new AliPHOSDATreeEvent();
201	}
202	// No need to make clustering for tree saving.
203	//if(! fEventClustered ){
204	//fEvent->ExecuteClustering();
205	//fEventClustered = true;
206	//}
207	fEvent->SetTime(fTime);
208	fTTree->Fill();
209	} else {
210	if( fEvent ) delete fEvent;
211	fEvent = event;
212	fTTree->Fill();
213	fEvent = 0;
214	}
215	}
216	//-------------------------------------------------------------------
217	void AliPHOSDApi0mip::FillHist(AliPHOSDATreeEvent* event){
218	// Fill all information (AliPHOSDATreeEvent) into histograms
219	// if event==NULL, the obtained information (=fEvent) is used.
220
221	if(! fCreateHist ) CreateHist();
222	if( event == 0 ){
223	if( fEvent==0 ) fEvent = new AliPHOSDATreeEvent;
224	if(! fEventClustered ){
225	fEvent->ExecuteClustering();
226	fEventClustered = true;
227	}
228	fEvent->SetTime(fTime);
229	event = fEvent;
230	}
231
232	// -- Constant
233	int nclt1, nclt2;
234	int ndigits;
235	int ndigitsall = 0;
236	AliPHOSDATreeDigit digit1, digit2;
237	const float kDistanceFromVertex = 460.;
238	float dist1, dist2, px, py;
239	float mass, cosine, pt, asym;
240
241	// -- Filling into Time Histogram
242	double start = fH1Time->GetBinContent(1);
243	double stop = fH1Time->GetBinContent(2);
244	double currenttime = (double) (event->GetTime());
245	if( start == 0 && stop == 0 ) start = stop = currenttime;
246	if( currenttime < start ) start = currenttime;
247	if( currenttime > stop ) stop = currenttime;
248	fH1Time->SetBinContent(1,start);
249	fH1Time->SetBinContent(2,stop);
250
251	// -- Start looping clusters
252	nclt1 = event->GetNClusters();
253	fH1ClusterNum->Fill(nclt1);
254	//std::cout<<" AliPHOSDApi0mip::FillHisto() DEBUG:: Number of clusters: "<<nclt1<<std::endl;
255	while( nclt1-- ){
256	AliPHOSDATreeCluster& clt1 = event->GetCluster(nclt1);
257	ndigits = clt1.GetNDigits();
258	while( ndigits-- ){
259	AliPHOSDATreeDigit& digit = clt1.GetDigit(ndigits);
260	fH2EneDigitId->Fill(digit.GetDigitId(),digit.GetEnergy());
261	ndigitsall++;
262	}
263	digit1 = clt1.GetMaxDigit();
264	if( clt1.GetEnergy() > 0 && clt1.GetNDigits() >= 2 ){
265	fH2MipDigitId->Fill(digit1.GetDigitId(),clt1.GetEnergy());
266	}
267	if( clt1.GetEnergy() > 0.2 ){
268	nclt2 = nclt1;
269	while( nclt2-- ){
270	AliPHOSDATreeCluster& clt2 = event->GetCluster(nclt2);
271	digit2 = clt2.GetMaxDigit();
272	if( clt2.GetEnergy() > 0.2 ){
273	//
274	// Following approximation is applied in order to avoid many calling "sqrt" function.
275	// sqrt( 1 + x^2 ) =~ 1 + 0.5x^2 (for x<<1)
276	//
277	//cosine = ((clt1.GetRow()-31.5)(clt2.GetRow()-31.5)4.84 + (clt1.GetCol()-27.5)(clt2.GetCol()-27.5)4.84 + kDistanceFromVertex*kDistanceFromVertex)
278	// / ( kDistanceFromVertex + (clt1.GetRow()-31.5)(clt1.GetRow()-31.5)2.42/kDistanceFromVertex + (clt1.GetCol()-27.5)(clt1.GetCol()-27.5)2.42/kDistanceFromVertex )
279	// / ( kDistanceFromVertex + (clt2.GetRow()-31.5)(clt2.GetRow()-31.5)2.42/kDistanceFromVertex + (clt2.GetCol()-27.5)(clt2.GetCol()-27.5)2.42/kDistanceFromVertex );
280	//
281
282
283	dist1 = sqrt( kDistanceFromVertexkDistanceFromVertex + (clt1.GetRow()-31.5)(clt1.GetRow()-31.5)4.84 + (clt1.GetCol()-27.5)(clt1.GetCol()-27.5)*4.84 );
284	dist2 = sqrt( kDistanceFromVertexkDistanceFromVertex + (clt2.GetRow()-31.5)(clt2.GetRow()-31.5)4.84 + (clt2.GetCol()-27.5)(clt2.GetCol()-27.5)*4.84 );
285	cosine = ((clt1.GetRow()-31.5)(clt2.GetRow()-31.5)4.84 + (clt1.GetCol()-27.5)(clt2.GetCol()-27.5)4.84 + kDistanceFromVertex*kDistanceFromVertex)
286	/ dist1 / dist2;
287	mass = sqrt( 2.0 * clt1.GetEnergy() * clt2.GetEnergy() * (1 - cosine) );
288	//std::cout<<" DEBUG: dist1:"<<dist1<<" dist2:"<<dist2<<" cosine:"<<cosine<<" c1:"<<clt1.GetEnergy()<<" c2:"<<clt2.GetEnergy()<<" mass:"<<mass<<std::endl;
289	//std::cout<<" : clt1(row,col)=("<<clt1.GetRow()<<","<<clt1.GetCol()<<") clt2(row,col)=("<<clt2.GetRow()<<","<<clt2.GetCol()<<") "<<std::endl;
290	asym = fabs(clt1.GetEnergy() - clt2.GetEnergy())/(clt1.GetEnergy() + clt2.GetEnergy());
291	py = clt1.GetEnergy() * kDistanceFromVertex / dist1 + clt2.GetEnergy() * kDistanceFromVertex / dist2;
292	px = clt1.GetEnergy() * (clt1.GetCol()-27.5)2.42/dist1 + clt2.GetEnergy() (clt2.GetCol()-27.5)*2.42/ dist2;
293	pt = sqrt(pxpx+pypy);
294	fH3Pi0AsymPt->Fill(asym,pt,mass);
295	if( digit1.IsValid() && digit1.IsValid() &&
296	digit1.GetDigitId() != digit2.GetDigitId() &&
297	//pt > 1.5 && clt1.GetEnergy() > 0.3 && clt2.GetEnergy() > 0.3 ){
298	//pt > 1.3 && clt1.GetEnergy() > 0.25 && clt2.GetEnergy() > 0.25 ){
299	pt > 1.0 && clt1.GetEnergy() > 0.2 && clt2.GetEnergy() > 0.2 ){
300	fH2Pi0DigitId->Fill(digit1.GetDigitId(),mass);
301	fH2Pi0DigitId->Fill(digit2.GetDigitId(),mass);
302	}
303	} // End of energy cut
304	} // End of second cluster loop (clt2)
305	} // End of energy cut
306	} // End of first cluster loop (clt1)
307	fH1DigitNum->Fill(ndigitsall);
308	//
309	}
310	//-------------------------------------------------------------------
311	void AliPHOSDApi0mip::Print(char* opt){
312	// Print Out
313
314	//fTFile->ls();
315	//fTTree->Print();
316	if( fEvent ){
317	//fEvent->ExecuteClustering();
318	fEvent->Print(opt);
319	}
320	}
321	//-------------------------------------------------------------------