HGTD_OverlapDescriptor.h

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/*
  Copyright (C) 2002-2024 CERN for the benefit of the ATLAS collaboration
*/

// HGTD_OverlapDescriptor.h, (c) ATLAS Detector software
 
#ifndef HGTDET_HGTDTRACKINGGEOMETRY_HGTDOVERLAPDESCRIPTOR
#define HGTDET_HGTDTRACKINGGEOMETRY_HGTDOVERLAPDESCRIPTOR
 
// Trk
#include "TrkGeometry/OverlapDescriptor.h"
// Trk inlcude
#include "TrkDetDescrUtils/BinnedArray.h"
// STL include
#include <atomic>
 
namespace Trk {
  class Surface;
}
 
namespace InDetDD {   
  class HGTD_DetectorElement;
}
 
class HGTD_ID;

 
class HGTD_OverlapDescriptor : public Trk::OverlapDescriptor {
public:

  HGTD_OverlapDescriptor(const Trk::BinnedArray<Trk::Surface>* bin_array = nullptr,
                         std::vector < float > valuesR = {},
                         std::vector < std::vector< float> > valuesPhi = {},
                         int nStepsR=3, int nStepsPhi=10);

  virtual ~HGTD_OverlapDescriptor() {
  }

  HGTD_OverlapDescriptor(const HGTD_OverlapDescriptor &) = delete;

  HGTD_OverlapDescriptor & operator=(const HGTD_OverlapDescriptor &) = delete;

  virtual HGTD_OverlapDescriptor* clone() const override;

  bool reachableSurfaces(std::vector<Trk::SurfaceIntersection>& surfaces,
                         const Trk::Surface& sf,
                         const Amg::Vector3D& pos,
                         const Amg::Vector3D& dir) const override;
 
private:
  bool dumpSurfaces(std::vector<Trk::SurfaceIntersection>& surfaces) const;
 
  const Trk::BinnedArray<Trk::Surface>*   m_binnedArray;
  std::vector < float >                   m_valuesR;
  std::vector < std::vector< float> >     m_valuesPhi;
  int                                     m_nStepsR;
  int                                     m_nStepsPhi;
  mutable std::atomic<const HGTD_ID*>     m_hgtdIdHelper{nullptr};
 
};
 
 
inline HGTD_OverlapDescriptor* HGTD_OverlapDescriptor::clone() const {
  return new HGTD_OverlapDescriptor();
}
 
#endif // end of HGTDET_HGTDTRACKINGGEOMETRY_HGTDOVERLAPDESCRIPTOR