TrackHitMeta.h

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#ifndef LARDATAOBJ_RECOBASE_TRACKHITMETA_H
#define LARDATAOBJ_RECOBASE_TRACKHITMETA_H

#include <iosfwd>

// #include "larcoreobj/SimpleTypesAndConstants/geo_vectors.h"

namespace recob {

class TrackHitMeta
{
public:
        TrackHitMeta() = default;

        TrackHitMeta(unsigned int idx, double dx = 0.0)
          : fIndex(idx), fDx(dx)
          {}

        unsigned int Index() const { return fIndex; }

        double Dx() const { return fDx; }

        // /// Candidate to keep 3D trajectory point here instead of inside recob::Track
        //geo::Point_t const & Position3D(void) const { return fPosition3D; }

private:
        unsigned int fIndex = 0U; 
        double fDx = 0.0; 

        //geo::Point_t fPosition3D;
}; // class TrackHitMeta


inline std::ostream& operator<< (std::ostream& o, const TrackHitMeta & a)
  { o << a.Index(); return o; }

inline bool operator < (const TrackHitMeta & a, const TrackHitMeta & b)
  { return a.Index() < b.Index(); }


} // namespace recob

#endif // LARDATAOBJ_RECOBASE_TRACKHITMETA_H