VertexNewMatcher.h

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/* emacs: this is -*- c++ -*- */
 
#ifndef  VERTEXNEWMATCHER_H
#define  VERTEXNEWMATCHER_H
 
#include <iostream>
 
#include "TrigInDetAnalysisUtils/BestMatcher.h"
#include "TrigInDetAnalysisUtils/Associator_BestMatch.h"
 
#include "TrigInDetAnalysis/TIDAVertex.h"
 
typedef TIDA::Associator<TIDA::Vertex> VertexAssociator;
 
 
class VertexNewMatcher : public BestMatcher<TIDA::Vertex> {
 
public:
 
  VertexNewMatcher( const std::string& s, double d=0.5 ) : BestMatcher<TIDA::Vertex>( s, d*d ) { }  
 
  ~VertexNewMatcher() { }
 
 
  virtual std::unique_ptr<VertexAssociator> uclone() const override { return std::make_unique<VertexNewMatcher>(*this); }
  
  virtual double distance( const TIDA::Vertex* v0, const TIDA::Vertex* v1 ) const override {
 
    // vectors of pointers to tracks belonging to ref and test vertices
    const std::vector<TIDA::Track*>& refTracks= v0->tracks();
    const std::vector<TIDA::Track*>& testTracks = v1->tracks();
 
    // match offline to trigger tracks using delta R
    Associator_DeltaRMatcher track_matcher( "track_matcher", 0.05 );
    track_matcher.match( refTracks, testTracks );
 
    double n_matches = (double)track_matcher.size();
    double eff = n_matches/refTracks.size();
 
    // 1-eff as BestMatcher uses lower than threshold, squared as BestMatcher takes d*d
    return (1-eff)*(1-eff);
  };
  
};
 
inline std::ostream& operator<<( std::ostream& s, const VertexNewMatcher& /* _v */ ) { 
  return s;
}
 
#endif  // VERTEXNEWMATCHER_H