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CellHistogramMaker_helper.h

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//=================================================
//
// CellHistogramMaker_helper
//
// this .h file contains a number of useful utilities
// (predicate functions and constants) for manipulating
// the testing CellMaker record.
//
// Everything lives in the CellHistogramMaker_helper namespace
//
// Author: Peter Sherwood
//
//
//===================================================
#include "HepMC/GenParticle.h"
#include "HepMC_helpere.h"

namespace CellMakerHistogram_helper{
class FiresCell {
 public:
  FiresCell(): m_flag(0) {}
  FiresCell(int n): m_flag(n) {}  
  
  bool operator()( const HepMC::GenParticle* p ) { 

    int pdg=p->pdg_id();
    if(m_flag>0 && pdg<0) return 0; //select sign of particle
    if(m_flag<0 && pdg>0) return 0;

                
    int pdg=abs(pdg);
    if(pdg == 12 || pdg == 13 || pdg == 14 || pdg == 16) return 0;

    HepMC_helper::IsFinalState ifs;
    
    return ifs(p);
  }
 private:
  int m_flag;
};


class FiresCell {
 public:
  // if constructed with no arguments, returns all final state particles
  FiresCell() {}
  
  bool operator()( const HepMC::GenParticle* p ) { 

    int pdg=abs(p->pdg_id());
    if(pdg == 12 || pdg == 13 || pdg == 14 || pdg == 16){
      return 0;
    }

    HepMC_helper::IsFinalState ifs;
    
    return ifs(p);
  }
};

}  // closing the namespace

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