EgammaIsoHcalDetIdCollectionProducer.cc File Reference

#include "RecoEgamma/EgammaIsolationAlgos/plugins/EgammaIsoHcalDetIdCollectionProducer.h"
#include "FWCore/MessageLogger/interface/MessageLogger.h"
#include "FWCore/Framework/interface/EventSetup.h"
#include "DataFormats/DetId/interface/DetIdCollection.h"
#include "Geometry/Records/interface/CaloGeometryRecord.h"

Go to the source code of this file.

Functions
int	calDIEta (int iEta1, int iEta2)
int	calDIPhi (int iPhi1, int iPhi2)

Function Documentation

int calDIEta	(	int	iEta1,
		int	iEta2
	)

Definition at line 102 of file EgammaIsoHcalDetIdCollectionProducer.cc.

Referenced by EgammaIsoHcalDetIdCollectionProducer::addDetIds().

{
  
  int dEta = iEta1-iEta2;
  if(iEta1*iEta2<0) {//-ve to +ve transistion and no crystal at zero
    if(dEta<0) dEta++;
    else dEta--;
  }
  return dEta;
}

int calDIPhi	(	int	iPhi1,
		int	iPhi2
	)

Definition at line 114 of file EgammaIsoHcalDetIdCollectionProducer.cc.

Referenced by EgammaIsoHcalDetIdCollectionProducer::addDetIds().

{

  int dPhi = iPhi1-iPhi2;

  if(dPhi>72/2) dPhi-=72;
  else if(dPhi<-72/2) dPhi+=72;
  
  return dPhi;

}