LinkByRecHit.h

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#ifndef RecoParticleFlow_PFClusterTools_LinkByRecHit_h
#define RecoParticleFlow_PFClusterTools_LinkByRecHit_h 

#include "DataFormats/ParticleFlowReco/interface/PFCluster.h"
#include "DataFormats/ParticleFlowReco/interface/PFRecTrack.h"



class LinkByRecHit {
 public:
  LinkByRecHit() {};
  ~LinkByRecHit() {} ; 

  static double computeDist( double eta1, double phi1, 
                 double eta2, double phi2,
                 bool etaPhi = true) ;
  
  //tests association between a track and a cluster by rechit
  static double testTrackAndClusterByRecHit( const reco::PFRecTrack& track, 
                         const reco::PFCluster& cluster,
                         bool isBrem = false,
                         bool debug = false ) ;  

  //tests association between ECAL and PS clusters by rechit
  static double testECALAndPSByRecHit( const reco::PFCluster& clusterECAL, 
                       const reco::PFCluster& clusterPS,
                       bool debug=false)  ;
  
  static double testHFEMAndHFHADByRecHit( const reco::PFCluster& clusterHFEM, 
                      const reco::PFCluster& clusterHFHAD,
                      bool debug=false)  ;
  

};

#endif