DeltaRMatcher.h

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/*
  Copyright (C) 2002-2018 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef ASSOCIATIONUTILS_DELTARMATCHER_H
#define ASSOCIATIONUTILS_DELTARMATCHER_H
 
// System includes
#include <limits>
 
// EDM includes
#include "xAODBase/IParticle.h"
 
// Local includes
#include "AssociationUtils/IObjectAssociator.h"
 
namespace ORUtils
{
 
  class DeltaRMatcher : public IParticleAssociator
  {
 
    public:
 
      DeltaRMatcher(double dR, bool useRapidity=true);
 
      virtual bool objectsMatch
      (const xAOD::IParticle& p1, const xAOD::IParticle& p2) const override;
 
    private:
 
      double m_dR;
      bool m_useRapidity;
 
  }; // class DeltaRMatcher
 
 
  class SlidingDeltaRMatcher : public IParticleAssociator
  {
 
    public:
 
      SlidingDeltaRMatcher(double c1, double c2,
                           double maxCone = std::numeric_limits<double>::max(),
                           bool useRapidity=true);
 
      virtual bool objectsMatch
      (const xAOD::IParticle& p1, const xAOD::IParticle& p2) const override;
 
    private:
 
      double m_c1;
      double m_c2;
      double m_maxCone;
 
      bool m_useRapidity;
 
  }; // class SlidingDeltaRMatcher
 
} // namespace ORUtils
 
#endif