SaggedLineSurface.h

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

// SaggedLineSurface.h, (c) ATLAS Detector software
 
#ifndef TRKDISTORTEDSURFACES_SAGGEDLINESURFACE_H
#define TRKDISTORTEDSURFACES_SAGGEDLINESURFACE_H
 
// Geo & Maths
#include "GeoPrimitives/GeoPrimitives.h"
// Trk
#include "TrkDistortedSurfaces/LineSaggingDescriptor.h"
#include "TrkSurfaces/StraightLineSurface.h"
#include "CxxUtils/CachedValue.h"
namespace Trk {
 
  class TrkDetElementBase;

 
  class SaggedLineSurface final
    : public StraightLineSurface
  {
    public:
     SaggedLineSurface();

     SaggedLineSurface(const Amg::Transform3D& htrans,
                       double radius,
                       double halez,
                       LineSaggingDescriptor* lsd);
 
     SaggedLineSurface(const Amg::Transform3D& htrans);

     SaggedLineSurface(const TrkDetElementBase& detelement, const Identifier& id);

     SaggedLineSurface(
       const TrkDetElementBase& detelement,
       const Identifier& id,
       double wireLength,
       double wireTension,
       double linearDensity);

     SaggedLineSurface(const SaggedLineSurface& sls);

     virtual ~SaggedLineSurface();
 
     Trk::SaggedLineSurface& operator=(const Trk::SaggedLineSurface& sls);

     const StraightLineSurface& surfaceRepresentation() const;

     const LineSaggingDescriptor& distortionDescriptor() const;
 
   protected:
     LineSaggingDescriptor*                         m_saggingDescriptor; 
     CxxUtils::CachedValue<Amg::Vector3D>           m_saggedLineDirection;     
  };

inline const StraightLineSurface& SaggedLineSurface::surfaceRepresentation() const
{ return (*this); }

inline const LineSaggingDescriptor& SaggedLineSurface::distortionDescriptor() const
{ return (*m_saggingDescriptor); }
 
} // end of namespace Trk
 
#endif // TRKDISTORTEDSURFACES_SAGGEDLINESURFACE_H