RecoJets/JetAlgorithms/interface/CompoundPseudoJet.h - master - githubmirror/cmssw

RecoJets/JetAlgorithms/interface/CompoundPseudoJet.h
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31 май 2019, 13:16
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#ifndef RecoJets_JetAlgorithms_CompoundPseudoJet_h
#define RecoJets_JetAlgorithms_CompoundPseudoJet_h

// -*- C++ -*-
//// -*- C++ -*-
//
// Package:    CompoundPseudoJet
// Class:      CompoundPseudoJet
//
/**


*/
//-------------------------------------------------------------------------------------
//!\class CompoundPseudoJet CompoundPseudoJet.cc RecoJets/JetAlgorithms/interface/CompoundPseudoJet.h
//!\brief CompoundPseudoJet holds an association of fastjet::PseudoJets that represent
//!       a "hard" top jet with subjets.
//!
//-------------------------------------------------------------------------------------
//
// Original Author:  Salvatore Rappoccio
//         Created:  Wed Nov 28 15:31:57 CST 2007
//
//-------------------------------------------------------------------------------------

#include <fastjet/JetDefinition.hh>
#include <fastjet/PseudoJet.hh>

#include <vector>
#include <algorithm>

class CompoundPseudoSubJet {
public:
  CompoundPseudoSubJet() {}
  CompoundPseudoSubJet(fastjet::PseudoJet const& subjet, std::vector<int> const& constituents)
      : subjet_(subjet), subjetArea_(0.0), constituents_(constituents.size()) {
    copy(constituents.begin(), constituents.end(), constituents_.begin());
  }
  CompoundPseudoSubJet(fastjet::PseudoJet const& subjet, double subjetArea, std::vector<int> const& constituents)
      : subjet_(subjet), subjetArea_(subjetArea), constituents_(constituents.size()) {
    copy(constituents.begin(), constituents.end(), constituents_.begin());
  }

  ~CompoundPseudoSubJet() {}

  fastjet::PseudoJet const& subjet() const { return subjet_; }
  double subjetArea() const { return subjetArea_; }
  std::vector<int> const& constituents() const { return constituents_; }

protected:
  fastjet::PseudoJet subjet_;
  double subjetArea_;
  std::vector<int> constituents_;
};

class CompoundPseudoJet {
public:
  CompoundPseudoJet() {}
  CompoundPseudoJet(fastjet::PseudoJet const& hardJet, std::vector<CompoundPseudoSubJet> const& subjets)
      : hardJet_(hardJet), hardJetArea_(0.0), subjets_(subjets.size()) {
    copy(subjets.begin(), subjets.end(), subjets_.begin());
  }
  CompoundPseudoJet(fastjet::PseudoJet const& hardJet,
                    double hardJetArea,
                    std::vector<CompoundPseudoSubJet> const& subjets)
      : hardJet_(hardJet), hardJetArea_(hardJetArea), subjets_(subjets.size()) {
    copy(subjets.begin(), subjets.end(), subjets_.begin());
  }

  ~CompoundPseudoJet() {}

  fastjet::PseudoJet const& hardJet() const { return hardJet_; }
  double hardJetArea() const { return hardJetArea_; }
  std::vector<CompoundPseudoSubJet> const& subjets() const { return subjets_; }

protected:
  fastjet::PseudoJet hardJet_;
  double hardJetArea_;
  std::vector<CompoundPseudoSubJet> subjets_;
};

inline bool greaterByEtPseudoJet(fastjet::PseudoJet const& j1, fastjet::PseudoJet const& j2) {
  return j1.perp() > j2.perp();
}

#endif