PairAnalysisPairLegCuts.cxx

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//                                                                       //
//                                                                       //
// Authors:
//   * Copyright(c) 1998-2009, ALICE Experiment at CERN, All rights reserved. *
//   Julian Book   <Julian.Book@cern.ch>
/*
  Cut class providing cuts for both legs in the PairAnalysisPair
  Add any number of leg cuts using e.g. for leg 1
    GetFilterLeg1().AddCuts(mycut)
  where mycut has to inherit from AnalysisCuts.
 
  the following cut types are defined and selected via SetCutType():
    kBothLegs, kAnyLeg, kMixLegs, kOneLeg
 
*/
//                                                                       //
 
#include "PairAnalysisPairLegCuts.h"
 
#include <TList.h>
 
#include "PairAnalysisPairLV.h"
#include "PairAnalysisTrack.h"
 
ClassImp(PairAnalysisPairLegCuts)
 
 
  PairAnalysisPairLegCuts::PairAnalysisPairLegCuts()
  : PairAnalysisPairLegCuts("pairlegcut", "pairlegcut")
{
  //
  // Default contructor
  //
}
 
//________________________________________________________________________
PairAnalysisPairLegCuts::PairAnalysisPairLegCuts(const char* name, const char* title)
  : AnalysisCuts(name, title)
  , fFilterLeg1("PairFilterLeg1", "PairFilterLeg1")
  , fFilterLeg2("PairFilterLeg2", "PairFilterLeg2")
{
  //
  // Named contructor
  //
}
 
 
//________________________________________________________________________
Bool_t PairAnalysisPairLegCuts::IsSelected(TObject* track)
{
  //
  // check if cuts are fulfilled
  //
 
  //check if we have a PairAnalysisPair
  PairAnalysisPair* pair = dynamic_cast<PairAnalysisPair*>(track);
  if (!pair) return kFALSE;
 
  //get both legs
  PairAnalysisTrack* leg1 = pair->GetFirstDaughter();
  PairAnalysisTrack* leg2 = pair->GetSecondDaughter();
 
  //mask used to require that all cuts are fulfilled
  UInt_t selectedMaskLeg1 = (1 << fFilterLeg1.GetCuts()->GetEntries()) - 1;
  UInt_t selectedMaskLeg2 = (1 << fFilterLeg2.GetCuts()->GetEntries()) - 1;
 
  //test cuts
  Bool_t isLeg1selected = (fFilterLeg1.IsSelected(leg1) == selectedMaskLeg1);
  if (fCutType == kBothLegs && !isLeg1selected) {
    SetSelected(isLeg1selected);
    return isLeg1selected;
  }
  //skip further checks if first leg passes cuts and cuttype is any
  if (fCutType == kAnyLeg && isLeg1selected) {
    SetSelected(isLeg1selected);
    return isLeg1selected;
  }
 
  Bool_t isLeg2selected = (fFilterLeg2.IsSelected(leg2) == selectedMaskLeg2);
  Bool_t isSelected     = isLeg1selected && isLeg2selected;
  if (fCutType == kAnyLeg) {
    isSelected = isLeg1selected || isLeg2selected;
    SetSelected(isSelected);
    return isSelected;
  }
  if (fCutType == kOneLeg) {
    isSelected = (isLeg1selected != isLeg2selected);
    SetSelected(isSelected);
    return isSelected;
  }
 
  if (fCutType == kMixLegs) {
    Bool_t isLeg1selectedMirror = (fFilterLeg1.IsSelected(leg2) == selectedMaskLeg1);
    Bool_t isLeg2selectedMirror = (fFilterLeg2.IsSelected(leg1) == selectedMaskLeg2);
    isSelected                  = (isLeg1selected && isLeg2selected) || (isLeg1selectedMirror && isLeg2selectedMirror);
    SetSelected(isSelected);
  }
  return isSelected;
}
 
//________________________________________________________________________
void PairAnalysisPairLegCuts::Print(const Option_t* /*option*/) const
{
  //
  // Print cuts and the range
  //
  printf("------------------------------------------\n");
  printf("pair-leg cut ranges for '%s'\n", GetTitle());
  switch (fCutType) {
    case kBothLegs: printf("Both legs have to fulfill the cuts\n"); break;
    case kAnyLeg: printf("Any leg have to fulfill the cuts\n"); break;
    case kMixLegs: printf("Leg1(leg2) has to fullfill the leg1(2)- or leg2(1)-cuts (mix mode)\n"); break;
    case kOneLeg: printf("Only one of legs is allowed to fulfill the cuts\n"); break;
  }
 
  printf("Leg filter1: \n");
  TIter listIterator(fFilterLeg1.GetCuts());
  while (AnalysisCuts* thisCut = (AnalysisCuts*) listIterator()) {
    thisCut->Print();
  }
 
  printf("Leg filter2: \n");
  TIter listIterator2(fFilterLeg2.GetCuts());
  while (AnalysisCuts* thisCut = (AnalysisCuts*) listIterator2()) {
    thisCut->Print();
  }
  printf("------------------------------------------\n");
}