#include "AliHBTFunction.h"
-/******************************************************************/
+
+/* $Id: */
+
+//--------------------------------------------------------------------
+//AliHBTFunction
+//Author: Piotr Krzysztof Skowronski
+//Piotr.Skowronski@cern.ch
+//Base classes for HBT functions
/*
-Piotr Krzysztof Skowronski
-Piotr.Skowronski@cern.ch
-Base classes for HBT functions
-
- function
- / \
- / \
- / \
- / \
- / \
- / \
- / \
- one pair two pair
- / | \ / | \
- / | \ / | \
- 1D 2D 3D 1D 2D 3D
+ OnePairFctn Function TwoPairFctn
+ | \ \ / | \ /|\
+ | \ \ / | \ / | \
+ | \ \ 1D 2D 3D / | \
+ | \ \ / \ |\ | \________________/__ | \
+ | \ \/ \ | \__|_____________ / \| \
+ | \ \ \_|____|__ \ / | \
+ | \ / \___ | | \ \/ |\ \
+ | / \ | | \ /\ | \ \
+ | / \ \| | \ / \ | \ \
+ | / \ /\ | \ / \ | \ |
+ | / \ / \ | \ / \ | \ |
+ | / \ / \ | \ / \ | \ |
+ | / \/ \ | \/ \ | \ |
+ OnePair1D OnePair2D OnePair3D TwoPair1D TwoPair2D TwoPair3D
+
four particle functions are intendent to be resolution functions:
it is mecessary to have simulated particle pair corresponding to given
recontructed track pair in order to calculate function simualted value
- and recontructed value to be further histogrammed
-
+ and recontructed value, to be further histogrammed
*/
+//---------------------------------------------------------------------
+
+#include <TH2.h>
+#include <TH3.h>
+
/******************************************************************/
/******************************************************************/
-#include <iostream.h>
ClassImp( AliHBTFunction )
-AliHBTFunction::AliHBTFunction()
+AliHBTFunction::AliHBTFunction():
+ fPairCut(new AliHBTEmptyPairCut()), //dummy cut
+ fWriteNumAndDen(kFALSE)
{
- fPairCut = new AliHBTEmptyPairCut(); //dummy cut
+//Default constructor
}
/******************************************************************/
-AliHBTFunction::AliHBTFunction(const char* name,const char* title):TNamed(name,title)
+
+AliHBTFunction::AliHBTFunction(const char* name,const char* title):
+ TNamed(name,title),
+ fPairCut(new AliHBTEmptyPairCut()), //dummy cut
+ fWriteNumAndDen(kFALSE)
{
- fPairCut = new AliHBTEmptyPairCut(); //dummy cut
+//Constructor
+}
+/******************************************************************/
+
+AliHBTFunction::AliHBTFunction(const AliHBTFunction & source):
+ TNamed(source),
+ fPairCut((AliHBTPairCut*)source.fPairCut->Clone()),
+ fWriteNumAndDen(source.fWriteNumAndDen)
+{
+// Copy constructor needed by the coding conventions
}
/******************************************************************/
AliHBTFunction::~AliHBTFunction()
- {
- if (fPairCut) delete fPairCut;
- }
+{
+//destructor
+ delete fPairCut;
+}
/******************************************************************/
+AliHBTFunction & AliHBTFunction::operator= (const AliHBTFunction & source)
+{
+ // Assignment needed by the coding conventions
+ delete fPairCut;
+ fPairCut = (AliHBTPairCut*)source.fPairCut->Clone();
+ return * this;
+}
-void AliHBTFunction::
-Write()
- {
- if (GetNumerator()) GetNumerator()->Write();
- if (GetDenominator()) GetDenominator()->Write();
+void AliHBTFunction::WriteFunction()
+{
+//writes result of the function to file
+ if (fWriteNumAndDen)
+ {
+ if (GetNumerator()) GetNumerator()->Write();
+ if (GetDenominator()) GetDenominator()->Write();
+ }
TH1* res = GetResult();
if (res) res->Write();
- }
+}
/******************************************************************/
-TH1* AliHBTFunction::
-GetRatio(Double_t normfactor)
+TH1* AliHBTFunction::GetRatio(Double_t normfactor)
{
- if (gDebug>0) cout<<"Mormfactor is "<<normfactor<<" for "<<fName<<endl;
+ //returns ratio of numerator and denominator
+ //
+ if (AliHBTParticle::GetDebug()>0) Info("GetRatio","Norm. Factor is %f for %s",normfactor,GetName());
if (normfactor == 0.0)
{
TH1 *result = (TH1*)GetNumerator()->Clone(str.Data());
result->SetTitle(str.Data());
- //result->Sumw2();
result->Divide(GetNumerator(),GetDenominator(),normfactor);
/******************************************************************/
-void AliHBTFunction::
-Rename(const Char_t * name)
+void AliHBTFunction::Rename(const Char_t * name)
{
//renames the function and histograms
SetName(name);
}
-void AliHBTFunction::
-Rename(const Char_t * name, const Char_t * title)
+void AliHBTFunction::Rename(const Char_t * name, const Char_t * title)
{
//renames and retitle the function and histograms
}
+/******************************************************************/
+
+void AliHBTFunction::InitFunction()
+{
+//Iniotializes fctn.: Resets histograms
+//In case histograms are not created in ctor, builds with default parameters
+ if ( !(GetNumerator()&&GetDenominator()) ) BuildHistos();
+ GetNumerator()->Reset();
+ GetDenominator()->Reset();
+}
/******************************************************************/
/******************************************************************/
/******************************************************************/
/******************************************************************/
-ClassImp( AliHBTOnePairFctn1D )
-AliHBTOnePairFctn1D::AliHBTOnePairFctn1D():fNBinsToScale(30)
- {
- fNumerator = 0x0;
- fDenominator = 0x0;
- }
+ClassImp( AliHBTFunction1D )
-AliHBTOnePairFctn1D::
-AliHBTOnePairFctn1D(Int_t nbins, Double_t maxXval, Double_t minXval)
- {
+const Int_t AliHBTFunction1D::fgkDefaultNBins = 100;
+const Float_t AliHBTFunction1D::fgkDefaultMin = 0.0;
+const Float_t AliHBTFunction1D::fgkDefaultMax = 0.15;
+const UInt_t AliHBTFunction1D::fgkDefaultNBinsToScale = 30;
+
+
+AliHBTFunction1D::AliHBTFunction1D():
+ fNumerator(0x0),
+ fDenominator(0x0),
+ fNBinsToScale(fgkDefaultNBinsToScale)
+{//default constructor
+}
+/******************************************************************/
+
+AliHBTFunction1D::AliHBTFunction1D(Int_t nbins, Float_t maxXval, Float_t minXval):
+ fNumerator(0x0),
+ fDenominator(0x0),
+ fNBinsToScale(fgkDefaultNBinsToScale)
+{
//Constructor of Two Part One Dimentional Function
// nbins: number of bins in histograms - default 100
// maxXval and minXval: range of histgram(s) default 0 - 0.15 (GeV)
-
-
- TString numstr = fName + " Numerator"; //title and name of the
- //numerator histogram
- TString denstr = fName + " Denominator";//title and name of the
- //denominator histogram
-
- fNumerator = new TH1D(numstr.Data(),numstr.Data(),nbins,minXval,maxXval);
- fDenominator = new TH1D(denstr.Data(),denstr.Data(),nbins,minXval,maxXval);
-
- fNumerator->Sumw2();
- fDenominator->Sumw2();
-
- fNBinsToScale = 30;
-
- }
-AliHBTOnePairFctn1D::
-AliHBTOnePairFctn1D(const Char_t *name, const Char_t *title,
- Int_t nbins, Double_t maxXval, Double_t minXval)
- :AliHBTOnePairFctn(name,title)
+ BuildHistos(nbins,maxXval,minXval);
+}
+/******************************************************************/
+AliHBTFunction1D::AliHBTFunction1D(const Char_t *name, const Char_t *title):
+ AliHBTFunction(name,title),
+ fNumerator(0x0),
+ fDenominator(0x0),
+ fNBinsToScale(fgkDefaultNBinsToScale)
+{//constructor
+}
+/******************************************************************/
+AliHBTFunction1D::AliHBTFunction1D(const Char_t *name, const Char_t *title,
+ Int_t nbins, Float_t maxXval, Float_t minXval):
+ AliHBTFunction(name,title),
+ fNumerator(0x0),
+ fDenominator(0x0),
+ fNBinsToScale(fgkDefaultNBinsToScale)
{
- TString numstr = fName + " Numerator"; //title and name of the
- //numerator histogram
- TString denstr = fName + " Denominator";//title and name of the
- //denominator histogram
-
- fNumerator = new TH1D(numstr.Data(),numstr.Data(),nbins,minXval,maxXval);
- fDenominator = new TH1D(denstr.Data(),denstr.Data(),nbins,minXval,maxXval);
-
- fNumerator->Sumw2();
- fDenominator->Sumw2();
-
- fNBinsToScale = 30;
+//constructor
+ BuildHistos(nbins,maxXval,minXval);
+}
+/******************************************************************/
+
+AliHBTFunction1D::AliHBTFunction1D(const AliHBTFunction1D& source):
+ AliHBTFunction(source)
+{
+// Copy constructor needed by the coding conventions byt not used
+ Fatal("AliHBTFunction1D(const AliHBTFunction1D&)","Cpy ctor not usable.");
}
/******************************************************************/
-AliHBTOnePairFctn1D::~AliHBTOnePairFctn1D()
+
+AliHBTFunction1D& AliHBTFunction1D::operator= (const AliHBTFunction1D & /*source*/)
{
+// Assignment needed by the coding conventions byt not used
+ Fatal("Assignment operator","not implemented");
+ return * this;
+ }
+/******************************************************************/
+
+AliHBTFunction1D::~AliHBTFunction1D()
+{
+//destructor
delete fNumerator;
delete fDenominator;
}
/******************************************************************/
+void AliHBTFunction1D::BuildHistos()
+{
+//builds histograms with default settings
+ BuildHistos(fgkDefaultNBins,fgkDefaultMax,fgkDefaultMin);
+}
-void AliHBTOnePairFctn1D::ProcessSameEventParticles(AliHBTPair* pair)
+/******************************************************************/
+
+void AliHBTFunction1D::BuildHistos(Int_t nbins, Float_t max, Float_t min)
{
- //Fills the numerator
- pair = CheckPair(pair);
- if(pair) fNumerator->Fill(GetValue(pair));
+//builds numarator and denominator hitograms
+ TString numstr = fName + " Numerator"; //title and name of the
+ //numerator histogram
+ TString denstr = fName + " Denominator";//title and name of the
+ //denominator histogram
+ fNumerator = new TH1D(numstr.Data(),numstr.Data(),nbins,min,max);
+ fDenominator = new TH1D(denstr.Data(),denstr.Data(),nbins,min,max);
+
+ fNumerator->Sumw2();
+ fDenominator->Sumw2();
}
/******************************************************************/
-void AliHBTOnePairFctn1D::ProcessDiffEventParticles(AliHBTPair* pair)
- {
- //fills denumerator
- pair = CheckPair(pair);
- if(pair) fDenominator->Fill(GetValue(pair));
- }
+Double_t AliHBTFunction1D::Scale()
+{
+ //Calculates the factor that should be used to scale
+ //quatience of fNumerator and fDenominator to 1 at tail
+ return Scale(fNumerator,fDenominator);
+}
/******************************************************************/
-Double_t AliHBTOnePairFctn1D::Scale()
+
+Double_t AliHBTFunction1D::Scale(TH1D* num,TH1D* den)
{
- if (gDebug>0) cout<<"Enetered Scale()"<<endl;
- if(!fNumerator)
+ //Calculates the factor that should be used to scale
+ //quatience of num and den to 1 at tail
+
+ if (AliHBTParticle::GetDebug()>0) Info("Scale","Enetered Scale()");
+ if(!num)
{
Error("Scale","No numerator");
return 0.0;
}
- if(!fDenominator)
+ if(!den)
{
Error("Scale","No denominator");
return 0.0;
if(fNBinsToScale < 1)
{
- return 0.0;
Error("Scale","Number of bins for scaling is smaller thnan 1");
+ return 0.0;
}
- Int_t nbins = fNumerator->GetNbinsX();
+ UInt_t nbins = num->GetNbinsX();
if (fNBinsToScale > nbins)
{
Error("Scale","Number of bins for scaling is bigger thnan number of bins in histograms");
return 0.0;
}
- if (gDebug>0) cout<<"No errors detected"<<endl;
+ if (AliHBTParticle::GetDebug()>0) Info("Scale","No errors detected");
Double_t ratio;
Double_t sum = 0;
- Int_t N = 0;
+ Int_t n = 0;
Int_t offset = nbins - fNBinsToScale - 1;
- Int_t i;
- for ( i = offset; i< nbins; i++)
+
+ for (UInt_t i = offset; i< nbins; i++)
{
- if ( fNumerator->GetBinContent(i) > 0.0 )
+ if ( num->GetBinContent(i) > 0.0 )
{
- ratio = fDenominator->GetBinContent(i)/fNumerator->GetBinContent(i);
+ ratio = den->GetBinContent(i)/num->GetBinContent(i);
sum += ratio;
- N++;
+ n++;
}
}
- if(gDebug > 0) cout<<"sum="<<sum<<" fNBinsToScale="<<fNBinsToScale<<" N="<<N<<endl;
+ if(AliHBTParticle::GetDebug() > 0) Info("Scale","sum=%f fNBinsToScale=%d n=%d",sum,fNBinsToScale,n);
- if (N == 0) return 0.0;
- Double_t ret = sum/((Double_t)N);
+ if (n == 0) return 0.0;
+ Double_t ret = sum/((Double_t)n);
- if(gDebug > 0) cout<<"Scale() returning "<<ret<<endl;
+ if(AliHBTParticle::GetDebug() > 0) Info("Scale","returning %f",ret);
return ret;
}
/******************************************************************/
/******************************************************************/
-ClassImp( AliHBTOnePairFctn2D )
+//____________________
+///////////////////////////////////////////////////////
+// //
+// AliHBTFunction2D //
+// //
+// Base Calss for 2-dimensinal Functions //
+// //
+// Piotr.Skowronski@cern.ch //
+// http://alisoft.cern.ch/people/skowron/analyzer //
+// //
+///////////////////////////////////////////////////////
-AliHBTOnePairFctn2D::
-AliHBTOnePairFctn2D(Int_t nXbins, Double_t maxXval, Double_t minXval ,
- Int_t nYbins, Double_t maxYval, Double_t minYval)
+ClassImp( AliHBTFunction2D )
+const Int_t AliHBTFunction2D::fgkDefaultNBinsX = 200;//default number of Bins in X axis in histograms
+const Float_t AliHBTFunction2D::fgkDefaultMinX = 0.0;//Default min value of X axis in histograms
+const Float_t AliHBTFunction2D::fgkDefaultMaxX = 1.5;//Default max value of X axis inhistograms
+
+const Int_t AliHBTFunction2D::fgkDefaultNBinsY = 200;//default number of Bins in histograms
+const Float_t AliHBTFunction2D::fgkDefaultMinY = -0.15;//Default min value of histograms
+const Float_t AliHBTFunction2D::fgkDefaultMaxY = 0.15;//Default max value of histograms
+
+const UInt_t AliHBTFunction2D::fgkDefaultNBinsToScaleX = 30;//Default number of X bins used for scaling to tale
+const UInt_t AliHBTFunction2D::fgkDefaultNBinsToScaleY = 30;//Default number of bins used for scaling to tale
+
+/******************************************************************/
+AliHBTFunction2D::AliHBTFunction2D():
+ fNumerator(0x0),
+ fDenominator(0x0),
+ fNBinsToScaleX(fgkDefaultNBinsToScaleX),
+ fNBinsToScaleY(fgkDefaultNBinsToScaleY)
+{//default constructor
+}
+/******************************************************************/
+AliHBTFunction2D::AliHBTFunction2D(const Char_t *name, const Char_t *title):
+ AliHBTFunction(name,title),
+ fNumerator(0x0),
+ fDenominator(0x0),
+ fNBinsToScaleX(fgkDefaultNBinsToScaleX),
+ fNBinsToScaleY(fgkDefaultNBinsToScaleY)
+{//constructor
+}
+/******************************************************************/
+
+AliHBTFunction2D::AliHBTFunction2D(Int_t nXbins, Double_t maxXval, Double_t minXval,
+ Int_t nYbins, Double_t maxYval, Double_t minYval):
+ fNumerator(0x0),
+ fDenominator(0x0),
+ fNBinsToScaleX(fgkDefaultNBinsToScaleX),
+ fNBinsToScaleY(fgkDefaultNBinsToScaleY)
{
- TString numstr = fName + " Numerator"; //title and name of the
- //numerator histogram
- TString denstr = fName + " Denominator";//title and name of the
- //denominator histogram
-
- fNumerator = new TH2D(numstr.Data(),numstr.Data(),
- nXbins,minXval,maxXval,
- nYbins,minYval,maxYval);
-
- fDenominator = new TH2D(denstr.Data(),denstr.Data(),
- nXbins,minXval,maxXval,
- nYbins,minYval,maxYval);
-
- fNumerator->Sumw2();
- fDenominator->Sumw2();
+ BuildHistos(nXbins,maxXval,minXval,nYbins,maxYval,minYval);
+}
+/******************************************************************/
+AliHBTFunction2D::AliHBTFunction2D(const Char_t *name, const Char_t *title,
+ Int_t nXbins, Double_t maxXval, Double_t minXval,
+ Int_t nYbins, Double_t maxYval, Double_t minYval):
+ AliHBTFunction(name,title),
+ fNumerator(0x0),
+ fDenominator(0x0),
+ fNBinsToScaleX(fgkDefaultNBinsToScaleX),
+ fNBinsToScaleY(fgkDefaultNBinsToScaleY)
+{
+ BuildHistos(nXbins,maxXval,minXval,nYbins,maxYval,minYval);
}
-AliHBTOnePairFctn2D::~AliHBTOnePairFctn2D()
+/******************************************************************/
+AliHBTFunction2D::AliHBTFunction2D(const AliHBTFunction2D & source):
+ AliHBTFunction(source)
+{
+// Copy constructor needed by the coding conventions byt not used
+ Fatal("AliHBTFunction2D(const AliHBTFunction2D&)","Cpy ctor not usable.");
+}
+/******************************************************************/
+
+AliHBTFunction2D& AliHBTFunction2D::operator= (const AliHBTFunction2D& /*source*/) {
+// Assignment needed by the coding conventions byt not used
+ Fatal("Assignment operator","not implemented");
+ return * this;
+}
+/******************************************************************/
+
+AliHBTFunction2D::~AliHBTFunction2D()
{
+//dtor
delete fNumerator;
delete fDenominator;
}
-void AliHBTOnePairFctn2D::ProcessSameEventParticles(AliHBTPair* pair)
+/******************************************************************/
+
+void AliHBTFunction2D::BuildHistos()
{
- pair = CheckPair(pair);
- if(pair)
- {
- Double_t x,y;
- GetValues(pair,x,y);
- fNumerator->Fill(y,x);
- }
+//Creates default histograms
+ BuildHistos(fgkDefaultNBinsX,fgkDefaultMaxX,fgkDefaultMinX,
+ fgkDefaultNBinsY,fgkDefaultMaxY,fgkDefaultMinY);
}
+/******************************************************************/
-void AliHBTOnePairFctn2D::ProcessDiffEventParticles(AliHBTPair* pair)
+void AliHBTFunction2D::BuildHistos(Int_t nxbins, Float_t xmax, Float_t xmin,
+ Int_t nybins, Float_t ymax, Float_t ymin)
{
- pair = CheckPair(pair);
- if(pair)
- {
- Double_t x,y;
- GetValues(pair,x,y);
- fDenominator->Fill(y,x);
- }
+//Builds numerator and denominator histograms (2d-case)
+ TString numstr = fName + " Numerator"; //title and name of the
+ //numerator histogram
+ TString denstr = fName + " Denominator";//title and name of the
+ //denominator histogram
+
+ fNumerator = new TH2D(numstr.Data(),numstr.Data(),
+ nxbins,xmin,xmax,nybins,ymin,ymax);
+
+ fDenominator = new TH2D(denstr.Data(),denstr.Data(),
+ nxbins,xmin,xmax,nybins,ymin,ymax);
+
+ fNumerator->Sumw2();
+ fDenominator->Sumw2();
+}
+/******************************************************************/
+void AliHBTFunction2D::SetNumberOfBinsToScale(UInt_t xn, UInt_t yn)
+{
+//defines area used for scaling factor calculation
+ fNBinsToScaleX = xn;
+ fNBinsToScaleY = yn;
}
+/******************************************************************/
+
+Double_t AliHBTFunction2D::Scale()
+{
+// Calculates the factor that should be used to scale
+// quatience of fNumerator and fDenominator to 1 at
+// given region
+ if (AliHBTParticle::GetDebug()>0) Info("Scale","Enetered Scale()");
+ if(!fNumerator)
+ {
+ Error("Scale","No numerator");
+ return 0.0;
+ }
+ if(!fDenominator)
+ {
+ Error("Scale","No denominator");
+ return 0.0;
+ }
+
+ if( (fNBinsToScaleX < 1) || (fNBinsToScaleY < 1) )
+ {
+ Error("Scale","Number of bins for scaling is smaller thnan 1");
+ return 0.0;
+ }
+ UInt_t nbinsX = fNumerator->GetNbinsX();
+ if (fNBinsToScaleX > nbinsX)
+ {
+ Error("Scale","Number of X bins for scaling is bigger thnan number of bins in histograms");
+ return 0.0;
+ }
+
+ UInt_t nbinsY = fNumerator->GetNbinsX();
+ if (fNBinsToScaleY > nbinsY)
+ {
+ Error("Scale","Number of Y bins for scaling is bigger thnan number of bins in histograms");
+ return 0.0;
+ }
+
+ if (AliHBTParticle::GetDebug()>0) Info("Scale","No errors detected");
+ Int_t offsetX = nbinsX - fNBinsToScaleX - 1; //bin that we start loop over bins in axis X
+ Int_t offsetY = nbinsY - fNBinsToScaleY - 1; //bin that we start loop over bins in axis X
+
+ Double_t ratio;
+ Double_t sum = 0;
+ Int_t n = 0;
+
+ for (UInt_t j = offsetY; j< nbinsY; j++)
+ for (UInt_t i = offsetX; i< nbinsX; i++)
+ {
+ if ( fNumerator->GetBinContent(i,j) > 0.0 )
+ {
+ ratio = fDenominator->GetBinContent(i,j)/fNumerator->GetBinContent(i,j);
+ sum += ratio;
+ n++;
+ }
+ }
+
+ if(AliHBTParticle::GetDebug() > 0) Info("Scale","sum=%f fNBinsToScaleX=%d fNBinsToScaleY=%d n=%d",sum,fNBinsToScaleX,fNBinsToScaleY,n);
+
+ if (n == 0) return 0.0;
+ Double_t ret = sum/((Double_t)n);
+
+ if(AliHBTParticle::GetDebug() > 0) Info("Scale","returning %f",ret);
+ return ret;
+}
/******************************************************************/
/******************************************************************/
/******************************************************************/
-ClassImp( AliHBTOnePairFctn3D)
+//____________________
+///////////////////////////////////////////////////////
+// //
+// AliHBTFunction3D //
+// //
+// Base Calss for 3-dimensinal Functions //
+// //
+// Piotr.Skowronski@cern.ch //
+// http://alisoft.cern.ch/people/skowron/analyzer //
+// //
+///////////////////////////////////////////////////////
+
+ClassImp( AliHBTFunction3D)
+
+const Int_t AliHBTFunction3D::fgkDefaultNBinsX = 200;//default number of Bins in X axis in histograms
+const Float_t AliHBTFunction3D::fgkDefaultMinX = 0.0;//Default min value of X axis in histograms
+const Float_t AliHBTFunction3D::fgkDefaultMaxX = 1.5;//Default max value of X axis inhistograms
+
+const Int_t AliHBTFunction3D::fgkDefaultNBinsY = 200;//default number of Bins in histograms
+const Float_t AliHBTFunction3D::fgkDefaultMinY = -0.15;//Default min value of histograms
+const Float_t AliHBTFunction3D::fgkDefaultMaxY = 0.15;//Default max value of histograms
-AliHBTOnePairFctn3D::
-AliHBTOnePairFctn3D(Int_t nXbins, Double_t maxXval, Double_t minXval,
- Int_t nYbins, Double_t maxYval, Double_t minYval,
- Int_t nZbins, Double_t maxZval, Double_t minZval)
+const Int_t AliHBTFunction3D::fgkDefaultNBinsZ = 200;//default number of Bins in histograms
+const Float_t AliHBTFunction3D::fgkDefaultMinZ = -0.15;//Default min value of histograms
+const Float_t AliHBTFunction3D::fgkDefaultMaxZ = 0.15;//Default max value of histograms
+const UInt_t AliHBTFunction3D::fgkDefaultNBinsToScaleX = 30;//Default number of X bins used for scaling to tale
+const UInt_t AliHBTFunction3D::fgkDefaultNBinsToScaleY = 30;//Default number of bins used for scaling to tale
+const UInt_t AliHBTFunction3D::fgkDefaultNBinsToScaleZ = 30;//Default number of bins used for scaling to tale
+
+AliHBTFunction3D::AliHBTFunction3D():
+ fNumerator(0x0),
+ fDenominator(0x0),
+ fNBinsToScaleX(fgkDefaultNBinsToScaleX),
+ fNBinsToScaleY(fgkDefaultNBinsToScaleY),
+ fNBinsToScaleZ(fgkDefaultNBinsToScaleZ)
{
- TString numstr = fName + " Numerator"; //title and name of the
- //numerator histogram
- TString denstr = fName + " Denominator";//title and name of the
- //denominator histogram
-
- fNumerator = new TH3D(numstr.Data(),numstr.Data(),
- nXbins,minXval,maxXval,
- nYbins,minYval,maxYval,
- nZbins,minZval,maxZval);
-
- fDenominator = new TH3D(denstr.Data(),denstr.Data(),
- nXbins,minXval,maxXval,
- nYbins,minYval,maxYval,
- nZbins,minZval,maxZval);
-
- fNumerator->Sumw2();
- fDenominator->Sumw2();
+ //constructor
+}
+/******************************************************************/
+AliHBTFunction3D::AliHBTFunction3D(const Char_t *name, const Char_t *title):
+ AliHBTFunction(name,title),
+ fNumerator(0x0),
+ fDenominator(0x0),
+ fNBinsToScaleX(fgkDefaultNBinsToScaleX),
+ fNBinsToScaleY(fgkDefaultNBinsToScaleY),
+ fNBinsToScaleZ(fgkDefaultNBinsToScaleZ)
+{
+ //constructor
+}
+/******************************************************************/
+
+AliHBTFunction3D::AliHBTFunction3D(Int_t nXbins, Double_t maxXval, Double_t minXval,
+ Int_t nYbins, Double_t maxYval, Double_t minYval,
+ Int_t nZbins, Double_t maxZval, Double_t minZval):
+ fNumerator(0x0),
+ fDenominator(0x0),
+ fNBinsToScaleX(fgkDefaultNBinsToScaleX),
+ fNBinsToScaleY(fgkDefaultNBinsToScaleY),
+ fNBinsToScaleZ(fgkDefaultNBinsToScaleZ)
+{
+ //constructor
+ BuildHistos( nXbins,maxXval,minXval,nYbins,maxYval,minYval,nZbins,maxZval,minZval);
}
/******************************************************************/
-AliHBTOnePairFctn3D::~AliHBTOnePairFctn3D()
+AliHBTFunction3D::AliHBTFunction3D(const Char_t *name, const Char_t *title,
+ Int_t nXbins, Double_t maxXval, Double_t minXval,
+ Int_t nYbins, Double_t maxYval, Double_t minYval,
+ Int_t nZbins, Double_t maxZval, Double_t minZval):
+ AliHBTFunction(name,title),
+ fNumerator(0x0),
+ fDenominator(0x0),
+ fNBinsToScaleX(fgkDefaultNBinsToScaleX),
+ fNBinsToScaleY(fgkDefaultNBinsToScaleY),
+ fNBinsToScaleZ(fgkDefaultNBinsToScaleZ)
{
- delete fNumerator;
- delete fDenominator;
-}
+ //constructor
+ BuildHistos( nXbins,maxXval,minXval,nYbins,maxYval,minYval,nZbins,maxZval,minZval);
+}
/******************************************************************/
+AliHBTFunction3D::AliHBTFunction3D(const AliHBTFunction3D& source):
+ AliHBTFunction(source)
+{
+// Copy constructor needed by the coding conventions byt not used
+ Fatal("AliHBTFunction3D(const AliHBTFunction3D&)","Cpy ctor not usable.");
+}
+/******************************************************************/
+AliHBTFunction3D& AliHBTFunction3D::operator= (const AliHBTFunction3D & /*source*/)
+{
+// Assignment needed by the coding conventions byt not used
+ Fatal("Assignment operator","not implemented");
+ return * this;
+ }
/******************************************************************/
+
+
+AliHBTFunction3D::~AliHBTFunction3D()
+{
+ delete fNumerator;
+ delete fDenominator;
+}
/******************************************************************/
+
+void AliHBTFunction3D::BuildHistos()
+{
+//Creates default histograms
+ BuildHistos(fgkDefaultNBinsX,fgkDefaultMaxX,fgkDefaultMinX,
+ fgkDefaultNBinsY,fgkDefaultMaxY,fgkDefaultMinY,
+ fgkDefaultNBinsZ,fgkDefaultMaxZ,fgkDefaultMinZ);
+}
/******************************************************************/
-ClassImp( AliHBTTwoPairFctn1D)
-AliHBTTwoPairFctn1D::
-AliHBTTwoPairFctn1D(Int_t nbins, Double_t maxval, Double_t minval)
- {
+void AliHBTFunction3D::BuildHistos(Int_t nxbins, Float_t xmax, Float_t xmin,
+ Int_t nybins, Float_t ymax, Float_t ymin,
+ Int_t nzbins, Float_t zmax, Float_t zmin)
+{
+ //Builds numerator and denominator histograms (3d-case)
TString numstr = fName + " Numerator"; //title and name of the
//numerator histogram
TString denstr = fName + " Denominator";//title and name of the
//denominator histogram
- fNumerator = new TH1D(numstr.Data(),numstr.Data(),
- nbins,minval,maxval);
+ fNumerator = new TH3D(numstr.Data(),numstr.Data(),
+ nxbins,xmin,xmax,nybins,ymin,ymax,nzbins,zmin,zmax);
- fDenominator = new TH1D(denstr.Data(),denstr.Data(),
- nbins,minval,maxval);
+ fDenominator = new TH3D(denstr.Data(),denstr.Data(),
+ nxbins,xmin,xmax,nybins,ymin,ymax,nzbins,zmin,zmax);
fNumerator->Sumw2();
fDenominator->Sumw2();
- }
+}
-AliHBTTwoPairFctn1D::
-AliHBTTwoPairFctn1D(const Char_t* name, const Char_t* title,
- Int_t nbins, Double_t maxval, Double_t minval)
- :AliHBTTwoPairFctn(name,title)
- {
- TString numstr = fName + " Numerator"; //title and name of the
- //numerator histogram
- TString denstr = fName + " Denominator";//title and name of the
- //denominator histogram
-
- fNumerator = new TH1D(numstr.Data(),numstr.Data(),
- nbins,minval,maxval);
-
- fDenominator = new TH1D(denstr.Data(),denstr.Data(),
- nbins,minval,maxval);
+/******************************************************************/
+
+Double_t AliHBTFunction3D::Scale()
+{
+ // Calculates the factor that should be used to scale
+ // quatience of fNumerator and fDenominator to 1 at
+ // given volume
+ if (AliHBTParticle::GetDebug()>0) Info("Scale","Enetered Scale()");
+ if(!fNumerator)
+ {
+ Error("Scale","No numerator");
+ return 0.0;
+ }
+ if(!fDenominator)
+ {
+ Error("Scale","No denominator");
+ return 0.0;
+ }
+
+ if( (fNBinsToScaleX < 1) || (fNBinsToScaleY < 1) || (fNBinsToScaleZ < 1))
+ {
+ Error("Scale","Number of bins for scaling is smaller thnan 1");
+ return 0.0;
+ }
+ UInt_t nbinsX = fNumerator->GetNbinsX();
+ if (fNBinsToScaleX > nbinsX)
+ {
+ Error("Scale","Number of X bins for scaling is bigger thnan number of bins in histograms");
+ return 0.0;
+ }
- fNumerator->Sumw2();
- fDenominator->Sumw2();
- }
+ UInt_t nbinsY = fNumerator->GetNbinsX();
+ if (fNBinsToScaleY > nbinsY)
+ {
+ Error("Scale","Number of Y bins for scaling is bigger thnan number of bins in histograms");
+ return 0.0;
+ }
+
+ UInt_t nbinsZ = fNumerator->GetNbinsZ();
+ if (fNBinsToScaleZ > nbinsZ)
+ {
+ Error("Scale","Number of Z bins for scaling is bigger thnan number of bins in histograms");
+ return 0.0;
+ }
+
+ if (AliHBTParticle::GetDebug()>0) Info("Scale","No errors detected");
+ Int_t offsetX = nbinsX - fNBinsToScaleX - 1; //bin that we start loop over bins in axis X
+ Int_t offsetY = nbinsY - fNBinsToScaleY - 1; //bin that we start loop over bins in axis Y
+ Int_t offsetZ = nbinsZ - fNBinsToScaleZ - 1; //bin that we start loop over bins in axis Z
+ Double_t ratio;
+ Double_t sum = 0;
+ Int_t n = 0;
+
+ for (UInt_t k = offsetZ; k<nbinsZ; k++)
+ for (UInt_t j = offsetY; j<nbinsY; j++)
+ for (UInt_t i = offsetX; i<nbinsX; i++)
+ {
+ if ( fNumerator->GetBinContent(i,j,k) > 0.0 )
+ {
+ ratio = fDenominator->GetBinContent(i,j,k)/fNumerator->GetBinContent(i,j,k);
+ sum += ratio;
+ n++;
+ }
+ }
+
+ if(AliHBTParticle::GetDebug() > 0)
+ Info("Scale","sum=%f fNBinsToScaleX=%d fNBinsToScaleY=%d fNBinsToScaleZ=%d n=%d",
+ sum,fNBinsToScaleX,fNBinsToScaleY,fNBinsToScaleZ,n);
+
+ if (n == 0) return 0.0;
+ Double_t ret = sum/((Double_t)n);
+
+ if(AliHBTParticle::GetDebug() > 0) Info("Scale","returning %f",ret);
+ return ret;
+}
/******************************************************************/
-AliHBTTwoPairFctn1D::~AliHBTTwoPairFctn1D()
+
+void AliHBTFunction3D::SetNumberOfBinsToScale(UInt_t xn, UInt_t yn,UInt_t zn)
{
- delete fNumerator;
- delete fDenominator;
+//sets up the volume to be used for scaling to tail
+ fNBinsToScaleX = xn;
+ fNBinsToScaleY = yn;
+ fNBinsToScaleZ = zn;
}
-void AliHBTTwoPairFctn1D::
-ProcessSameEventParticles(AliHBTPair* trackpair, AliHBTPair* partpair)
+
+/******************************************************************/
+/******************************************************************/
+/******************************************************************/
+/******************************************************************/
+/******************************************************************/
+/******************************************************************/
+/******************************************************************/
+/******************************************************************/
+/******************************************************************/
+
+//____________________
+///////////////////////////////////////////////////////
+// //
+// AliHBTOnePairFctn1D //
+// //
+// Base Calss for 1-dimensinal Functions that need //
+// one pair to fill function //
+// //
+// Piotr.Skowronski@cern.ch //
+// http://alisoft.cern.ch/people/skowron/analyzer //
+// //
+///////////////////////////////////////////////////////
+
+ClassImp( AliHBTOnePairFctn1D )
+/******************************************************************/
+
+AliHBTOnePairFctn1D::AliHBTOnePairFctn1D(Int_t nbins, Float_t maxXval, Float_t minXval):
+ AliHBTFunction1D(nbins,maxXval,minXval)
{
- partpair = CheckPair(partpair);
- trackpair = CheckPair(trackpair);
- if( partpair && trackpair)
- {
- Double_t x = GetValue(trackpair,partpair);
- fNumerator->Fill(x);
- }
+ //constructor
}
/******************************************************************/
-void AliHBTTwoPairFctn1D::
-ProcessDiffEventParticles(AliHBTPair* trackpair, AliHBTPair* partpair)
+AliHBTOnePairFctn1D::AliHBTOnePairFctn1D(const Char_t *name, const Char_t *title):
+ AliHBTFunction1D(name,title)
{
- partpair = CheckPair(partpair);
- trackpair = CheckPair(trackpair);
- if( partpair && trackpair)
- {
- Double_t x = GetValue(trackpair,partpair);
- fDenominator->Fill(x);
- }
}
+/******************************************************************/
+
+AliHBTOnePairFctn1D::AliHBTOnePairFctn1D(const Char_t *name, const Char_t *title,
+ Int_t nbins, Float_t maxXval, Float_t minXval):
+ AliHBTFunction1D(name,title,nbins,maxXval,minXval)
+{
+ //constructor
+}
+/******************************************************************/
+
+void AliHBTOnePairFctn1D::ProcessSameEventParticles(AliHBTPair* pair)
+{
+ //Fills the numerator using pair from the same event
+ pair = CheckPair(pair);
+ if(pair) fNumerator->Fill(GetValue(pair));
+}
+/******************************************************************/
+void AliHBTOnePairFctn1D::ProcessDiffEventParticles(AliHBTPair* pair)
+ {
+ //Fills the denumerator using mixed pairs
+ pair = CheckPair(pair);
+ if(pair) fDenominator->Fill(GetValue(pair));
+ }
/******************************************************************/
/******************************************************************/
/******************************************************************/
-ClassImp( AliHBTTwoPairFctn2D)
+//____________________
+///////////////////////////////////////////////////////
+// //
+// AliHBTOnePairFctn2D //
+// //
+// Base Calss for 2-dimensinal Functions that need //
+// one pair to fill function //
+// //
+// Piotr.Skowronski@cern.ch //
+// http://alisoft.cern.ch/people/skowron/analyzer //
+// //
+///////////////////////////////////////////////////////
+
+ClassImp( AliHBTOnePairFctn2D )
+/******************************************************************/
-AliHBTTwoPairFctn2D::
-AliHBTTwoPairFctn2D(Int_t nXbins, Double_t maxXval, Double_t minXval ,
- Int_t nYbins, Double_t maxYval, Double_t minYval)
+AliHBTOnePairFctn2D::AliHBTOnePairFctn2D(const Char_t *name, const Char_t *title):
+ AliHBTFunction2D(name,title)
+{
+ //constructor
+}
+/******************************************************************/
+AliHBTOnePairFctn2D::AliHBTOnePairFctn2D(Int_t nXbins, Double_t maxXval, Double_t minXval,
+ Int_t nYbins, Double_t maxYval, Double_t minYval):
+ AliHBTFunction2D(nXbins, maxXval, minXval, nYbins, maxYval, minYval)
{
- TString numstr = fName + " Numerator"; //title and name of the
- //numerator histogram
- TString denstr = fName + " Denominator";//title and name of the
- //denominator histogram
-
- fNumerator = new TH2D(numstr.Data(),numstr.Data(),
- nXbins,minXval,maxXval,
- nYbins,minYval,maxYval);
-
- fDenominator = new TH2D(denstr.Data(),denstr.Data(),
- nXbins,minXval,maxXval,
- nYbins,minYval,maxYval);
-
- fNumerator->Sumw2();
- fDenominator->Sumw2();
+ //constructor
+}
+/******************************************************************/
-}
-AliHBTTwoPairFctn2D::~AliHBTTwoPairFctn2D()
+AliHBTOnePairFctn2D::AliHBTOnePairFctn2D(const Char_t *name, const Char_t *title,
+ Int_t nXbins, Double_t maxXval, Double_t minXval,
+ Int_t nYbins, Double_t maxYval, Double_t minYval):
+ AliHBTFunction2D(name,title, nXbins, maxXval, minXval, nYbins, maxYval, minYval)
{
- delete fNumerator;
- delete fDenominator;
+ //constructor
}
-void AliHBTTwoPairFctn2D::
-ProcessSameEventParticles(AliHBTPair* trackpair, AliHBTPair* partpair)
+/******************************************************************/
+
+void AliHBTOnePairFctn2D::ProcessSameEventParticles(AliHBTPair* pair)
{
- partpair = CheckPair(partpair);
- trackpair = CheckPair(trackpair);
- if( partpair && trackpair)
+ // Fills the numerator using pairs from the same event
+ pair = CheckPair(pair);
+ if(pair)
{
Double_t x,y;
- GetValues(trackpair,partpair,x,y);
- fNumerator->Fill(y,x);
+ GetValues(pair,x,y);
+ fNumerator->Fill(x,y);
}
}
+/******************************************************************/
-void AliHBTTwoPairFctn2D::
-ProcessDiffEventParticles(AliHBTPair* trackpair, AliHBTPair* partpair)
+void AliHBTOnePairFctn2D::ProcessDiffEventParticles(AliHBTPair* pair)
{
- partpair = CheckPair(partpair);
- trackpair = CheckPair(trackpair);
- if( partpair && trackpair)
+ // Fills the denumerator using mixed pairs
+ pair = CheckPair(pair);
+ if(pair)
{
Double_t x,y;
- GetValues(trackpair,partpair,x,y);
- fDenominator->Fill(y,x);
+ GetValues(pair,x,y);
+ fDenominator->Fill(x,y);
}
-
}
+/******************************************************************/
+/******************************************************************/
+/******************************************************************/
+/******************************************************************/
+//____________________
+///////////////////////////////////////////////////////
+// //
+// AliHBTOnePairFctn3D //
+// //
+// Base Calss for 3-dimensinal Functions that need //
+// one pair to fill function //
+// //
+// Piotr.Skowronski@cern.ch //
+// http://alisoft.cern.ch/people/skowron/analyzer //
+// //
+///////////////////////////////////////////////////////
+ClassImp( AliHBTOnePairFctn3D)
/******************************************************************/
+
+AliHBTOnePairFctn3D::AliHBTOnePairFctn3D(const Char_t *name, const Char_t *title):
+ AliHBTFunction3D(name,title)
+{
+ //constructor
+}
+/******************************************************************/
+
+AliHBTOnePairFctn3D::AliHBTOnePairFctn3D(Int_t nXbins, Double_t maxXval, Double_t minXval,
+ Int_t nYbins, Double_t maxYval, Double_t minYval,
+ Int_t nZbins, Double_t maxZval, Double_t minZval):
+ AliHBTFunction3D(nXbins, maxXval, minXval, nYbins, maxYval, minYval, nZbins, maxZval, minZval)
+{
+ //constructor
+}
/******************************************************************/
+
+AliHBTOnePairFctn3D::AliHBTOnePairFctn3D(const Char_t *name, const Char_t *title,
+ Int_t nXbins, Double_t maxXval, Double_t minXval,
+ Int_t nYbins, Double_t maxYval, Double_t minYval,
+ Int_t nZbins, Double_t maxZval, Double_t minZval):
+ AliHBTFunction3D(name,title,nXbins, maxXval, minXval, nYbins, maxYval, minYval, nZbins, maxZval, minZval)
+{
+ //constructor
+}
/******************************************************************/
-ClassImp(AliHBTTwoPairFctn3D)
-void AliHBTTwoPairFctn3D::
-ProcessSameEventParticles(AliHBTPair* trackpair, AliHBTPair* partpair)
+void AliHBTOnePairFctn3D::ProcessSameEventParticles(AliHBTPair* pair)
{
- partpair = CheckPair(partpair);
- trackpair = CheckPair(trackpair);
- if( partpair && trackpair)
+//Reacts on pair coming from same event (real pairs)
+//and fills numerator histogram
+ pair = CheckPair(pair);
+ if( pair )
{
Double_t x,y,z;
- GetValues(trackpair,partpair,x,y,z);
- fNumerator->Fill(z,y,x);
+ GetValues(pair,x,y,z);
+ fNumerator->Fill(x,y,z);
}
}
+/******************************************************************/
-void AliHBTTwoPairFctn3D::
-ProcessDiffEventParticles(AliHBTPair* trackpair, AliHBTPair* partpair)
+void AliHBTOnePairFctn3D::ProcessDiffEventParticles(AliHBTPair* pair)
{
- partpair = CheckPair(partpair);
- trackpair = CheckPair(trackpair);
- if( partpair && trackpair)
+//Reacts on pair coming from different events (mixed pairs)
+//and fills denominator histogram
+ pair = CheckPair(pair);
+ if( pair )
{
Double_t x,y,z;
- GetValues(trackpair,partpair,x,y,z);
- fDenominator->Fill(z,y,x);
+ GetValues(pair,x,y,z);
+ fDenominator->Fill(x,y,z);
}
+}
+
+/******************************************************************/
+/******************************************************************/
+/******************************************************************/
+
+//____________________
+///////////////////////////////////////////////////////
+// //
+// AliHBTTwoPairFctn1D //
+// //
+// Base Calss for 1-dimensinal Functions that need //
+// two pair (simulated and reconstructed) //
+// to fill function //
+// //
+// Piotr.Skowronski@cern.ch //
+// http://alisoft.cern.ch/people/skowron/analyzer //
+// //
+///////////////////////////////////////////////////////
+ClassImp(AliHBTTwoPairFctn1D)
+/******************************************************************/
+AliHBTTwoPairFctn1D::AliHBTTwoPairFctn1D(Int_t nbins, Float_t maxXval, Float_t minXval):
+ AliHBTFunction1D(nbins,maxXval,minXval)
+{
+ //constructor
+}
+/******************************************************************/
+
+AliHBTTwoPairFctn1D::AliHBTTwoPairFctn1D(const Char_t *name, const Char_t *title):
+ AliHBTFunction1D(name,title)
+{
+ //constructor
+}
+/******************************************************************/
+
+AliHBTTwoPairFctn1D::AliHBTTwoPairFctn1D(const Char_t *name, const Char_t *title,
+ Int_t nbins, Float_t maxXval, Float_t minXval):
+ AliHBTFunction1D(name,title,nbins,maxXval,minXval)
+{
+ //constructor
+}
+/******************************************************************/
+
+void AliHBTTwoPairFctn1D::ProcessSameEventParticles(AliHBTPair* trackpair, AliHBTPair* partpair)
+{
+ // Fills the numerator using pairs from the same event
+ partpair = CheckPair(partpair);
+ if( partpair == 0x0) return;
+
+ if (partpair->GetSwapedPair() == 0x0)//it means that Check pair returned swapped pair
+ trackpair = trackpair->GetSwapedPair();//so the track pair must be swapped as well
+
+ Double_t x = GetValue(trackpair,partpair);
+ fNumerator->Fill(x);
}
+/******************************************************************/
+
+void AliHBTTwoPairFctn1D::ProcessDiffEventParticles(AliHBTPair* trackpair, AliHBTPair* partpair)
+{
+ // Fills the denumerator usin mixed pairs
+ partpair = CheckPair(partpair);
+ if( partpair == 0x0) return;
+
+ if (partpair->GetSwapedPair() == 0x0)//it means that Check pair returned swapped pair
+ trackpair = trackpair->GetSwapedPair();//so the track pair must be swapped as well
+
+ Double_t x = GetValue(trackpair,partpair);
+ fDenominator->Fill(x);
+}
+/******************************************************************/
+/******************************************************************/
+/******************************************************************/
+
+//____________________
+///////////////////////////////////////////////////////
+// //
+// AliHBTTwoPairFctn2D //
+// //
+// Base Calss for 2-dimensinal Functions that need //
+// two pair (simulated and reconstructed) //
+// to fill function //
+// //
+// Piotr.Skowronski@cern.ch //
+// http://alisoft.cern.ch/people/skowron/analyzer //
+// //
+///////////////////////////////////////////////////////
+
+ClassImp(AliHBTTwoPairFctn2D)
+
+/******************************************************************/
+
+AliHBTTwoPairFctn2D::AliHBTTwoPairFctn2D(const Char_t *name, const Char_t *title):
+ AliHBTFunction2D(name,title)
+{
+ //constructor
+}
+/******************************************************************/
+
+AliHBTTwoPairFctn2D::AliHBTTwoPairFctn2D(Int_t nXbins, Double_t maxXval, Double_t minXval,
+ Int_t nYbins, Double_t maxYval, Double_t minYval):
+ AliHBTFunction2D(nXbins, maxXval, minXval, nYbins, maxYval, minYval)
+{
+ //constructor
+}
+/******************************************************************/
+
+AliHBTTwoPairFctn2D::AliHBTTwoPairFctn2D(const Char_t *name, const Char_t *title,
+ Int_t nXbins, Double_t maxXval, Double_t minXval,
+ Int_t nYbins, Double_t maxYval, Double_t minYval):
+ AliHBTFunction2D(name,title,nXbins, maxXval, minXval, nYbins, maxYval, minYval)
+{
+ //constructor
+}
+/******************************************************************/
+
+void AliHBTTwoPairFctn2D::ProcessSameEventParticles(AliHBTPair* trackpair, AliHBTPair* partpair)
+{
+//processes pair of particles coming from a same events (real pair)
+ partpair = CheckPair(partpair); //check cuts
+ if (partpair == 0x0) return;
+
+ if (partpair->GetSwapedPair() == 0x0)//it means that Check pair returned swapped pair
+ trackpair = trackpair->GetSwapedPair();//so the track pair must be swapped as well
+
+ Double_t x,y;
+ GetValues(trackpair,partpair,x,y);
+ fNumerator->Fill(x,y);
+}
+/******************************************************************/
+
+void AliHBTTwoPairFctn2D::ProcessDiffEventParticles(AliHBTPair* trackpair, AliHBTPair* partpair)
+{
+//processes pair of particles coming from a different events (mixed pair)
+ partpair = CheckPair(partpair);
+ if (partpair == 0x0) return;
+
+ if (partpair->GetSwapedPair() == 0x0)//it means that Check pair returned swapped pair
+ trackpair = trackpair->GetSwapedPair();//so the track pair must be swapped as well
+
+ Double_t x,y;
+ GetValues(trackpair,partpair,x,y);
+ fDenominator->Fill(x,y);
+}
+
+/******************************************************************/
+/******************************************************************/
+/******************************************************************/
+
+//____________________
+///////////////////////////////////////////////////////
+// //
+// AliHBTTwoPairFctn3D //
+// //
+// Base Calss for 3-dimensinal Functions that need //
+// two pair (simulated and reconstructed) //
+// to fill function //
+// //
+// Piotr.Skowronski@cern.ch //
+// http://alisoft.cern.ch/people/skowron/analyzer //
+// //
+///////////////////////////////////////////////////////
+
+ClassImp(AliHBTTwoPairFctn3D)
+
+/******************************************************************/
+
+AliHBTTwoPairFctn3D::AliHBTTwoPairFctn3D(const Char_t *name, const Char_t *title):
+ AliHBTFunction3D(name,title)
+{
+ //constructor
+}
+/******************************************************************/
+
+AliHBTTwoPairFctn3D::AliHBTTwoPairFctn3D(Int_t nXbins, Double_t maxXval, Double_t minXval,
+ Int_t nYbins, Double_t maxYval, Double_t minYval,
+ Int_t nZbins, Double_t maxZval, Double_t minZval):
+ AliHBTFunction3D(nXbins, maxXval, minXval, nYbins, maxYval, minYval, nZbins, maxZval, minZval)
+{
+ //constructor
+}
+/******************************************************************/
+
+AliHBTTwoPairFctn3D::AliHBTTwoPairFctn3D(const Char_t *name, const Char_t *title,
+ Int_t nXbins, Double_t maxXval, Double_t minXval,
+ Int_t nYbins, Double_t maxYval, Double_t minYval,
+ Int_t nZbins, Double_t maxZval, Double_t minZval):
+ AliHBTFunction3D(name,title,nXbins, maxXval, minXval, nYbins, maxYval, minYval, nZbins, maxZval, minZval)
+{
+ //constructor
+}
+/******************************************************************/
+
+void AliHBTTwoPairFctn3D::ProcessSameEventParticles(AliHBTPair* trackpair, AliHBTPair* partpair)
+{
+ // Fills th numerator using pairs from the same event
+ partpair = CheckPair(partpair);
+ if( partpair == 0x0) return;
+
+ if (partpair->GetSwapedPair() == 0x0)//it means that CheckPair returned swapped pair
+ trackpair = trackpair->GetSwapedPair();//so the track pair must be swapped as well
+
+ Double_t x,y,z;
+ GetValues(trackpair,partpair,x,y,z);
+ fNumerator->Fill(x,y,z);
+
+}
+/******************************************************************/
+
+void AliHBTTwoPairFctn3D::ProcessDiffEventParticles(AliHBTPair* trackpair, AliHBTPair* partpair)
+{
+ // Fills the denumerator using mixed pairs
+ partpair = CheckPair(partpair);
+ if( partpair == 0x0) return;
+
+ if (partpair->GetSwapedPair() == 0x0)//it means that CheckPair returned swapped pair
+ trackpair = trackpair->GetSwapedPair();//so the track pair must be swapped as well
+
+ Double_t x,y,z;
+ GetValues(trackpair,partpair,x,y,z);
+ fDenominator->Fill(x,y,z);
+}
+
+/******************************************************************/
+/******************************************************************/
+/******************************************************************/