/Users/jmonk/Physics/ForIA/ForIA/Vertex.hh

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#ifndef FORIA_VERTEX_HH
#define FORIA_VERTEX_HH

#include "ForIA/Vertex.fh"
#include "ForIA/Track.hh"

#include "boost/smart_ptr.hpp"

#include <vector>
#include <iostream>

namespace ForIA{
 
  using std::vector;
  
  class Vertex;
  class Event;
  /*
  typedef boost::shared_ptr<Vertex> VertexPtr;
  typedef boost::shared_ptr<Vertex const> VertexConstPtr;
  typedef vector<VertexConstPtr> VertexVector;
  */

  class Vertex{
    
  public:
    
    enum VertexType{BAD=-1, TYPE_BEGIN=0, NONE = TYPE_BEGIN, PRIMARY=1, SECONDARY=2, PILE_UP=3, CONVERSION=4,
                    V0=5, KINK=6, V0_LAMBDA=7, V0_LAMBDA_BAR=8, V0_KSHORT=9, TRUTH, TYPE_END};
    
    Vertex();
    
    double x() const;
    double y() const;
    double z() const;
    double r() const;
    
    int nTracks() const;
    
    VertexType type() const;
    
    bool hasTrackAssociations()const;
      
    const TrackVector &associatedTracks()const;
    
    struct ByNTracksUp{
      bool operator()(VertexConstPtr left, VertexConstPtr right){
        return left->nTracks() < right->nTracks();
      }
    };
    
    struct ByNTracksDown{
      bool operator()(VertexConstPtr left, VertexConstPtr right){
        return ByNTracksUp()(right, left);
      }
    };
    
  private:
    
    friend std::ostream &operator << (std::ostream &out, const Vertex &vtx);
    
    friend class DataConverter;
    friend class Event;
    
    const Event *m_event;
    
    double m_x;
    double m_y;
    double m_z;
    
    mutable double m_r;
    mutable bool m_gotR;
    
    int m_nTracks;
    
    VertexType m_type;
    
    mutable TrackVector m_associatedTracks;
    mutable bool m_gotTracks;
    
    vector<int> m_trackIDs;
    
    bool m_haveTrackIDs;
    
  };
  
}

#endif