VertexOnTrack.h

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/*
  Copyright (C) 2002-2021 CERN for the benefit of the ATLAS collaboration
*/

// VertexOnTrack.h, (c) ATLAS Detector software
 
#ifndef TRKVERTEXONTRACK_VERTEXONTRACK_H
#define TRKVERTEXONTRACK_VERTEXONTRACK_H
 
// Trk
#include "TrkMeasurementBase/MeasurementBase.h"
#include "TrkSurfaces/PerigeeSurface.h"
#include "TrkSurfaces/SurfaceHolders.h"
 
#include "EventPrimitives/EventPrimitives.h"
#include "GeoPrimitives/GeoPrimitives.h"
#include "TrkParameters/TrackParameters.h"
 
#include "GaudiKernel/GaudiException.h"
#include <iosfwd>
#include <optional>
 
class MsgStream;
class TrackCollectionCnv;
 
namespace Trk {
 
class RecVertex;

 
class VertexOnTrack final
  : public MeasurementBase
  , public PerigeeSurfacePtrHolder
{
 
  friend class ::TrackCollectionCnv;
 
public:
  VertexOnTrack() = default;
 
  // default copy move dtor
  VertexOnTrack(const VertexOnTrack&) = default;
  VertexOnTrack(VertexOnTrack&&) noexcept = default;
  VertexOnTrack& operator=(const VertexOnTrack&) = default;
  VertexOnTrack& operator=(VertexOnTrack&&) noexcept = default;
  virtual ~VertexOnTrack() = default;

  VertexOnTrack(LocalParameters&& locpars,
                Amg::MatrixX&& locerr,
                const PerigeeSurface& assocSurf);
 
  VertexOnTrack(LocalParameters&& locpars,
                Amg::MatrixX&& locerr,
                SurfaceUniquePtrT<const PerigeeSurface> assocSurf);

  VertexOnTrack(const Trk::RecVertex& rvertex, const Trk::Perigee& mperigee);
 

  VertexOnTrack* clone() const override final;

  std::unique_ptr<VertexOnTrack> uniqueClone() const
  {
    return std::unique_ptr<VertexOnTrack>(clone());
  }

  virtual const PerigeeSurface& associatedSurface() const override final;

  virtual const Amg::Vector3D& globalPosition() const override final;

  virtual bool type(MeasurementBaseType::Type type) const override final
  {
    return (type == MeasurementBaseType::VertexOnTrack);
  }

  virtual MsgStream& dump(MsgStream& out) const override final;
  virtual std::ostream& dump(std::ostream& out) const override final;
 
  // perhaps return Vertex Object
 
protected:
  std::optional<Amg::Vector3D> m_globalPosition = std::nullopt;
};
 
inline VertexOnTrack*
VertexOnTrack::clone() const
{
  return new VertexOnTrack(*this);
}
 
inline const PerigeeSurface&
VertexOnTrack::associatedSurface() const
{
  return *m_associatedSurface;
}
 
}
 
#endif // TRKVERTEXONTRACK_VERTEXONTRACK_H