IVertexMapper.h

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/*
  Copyright (C) 2002-2022 CERN for the benefit of the ATLAS collaboration
*/

// IVertexMapper.h, (c) ATLAS Detector software
 
#ifndef TRKDETDESCRINTERFACES_IVERTEXMAPPER_H
#define TRKDETDESCRINTERFACES_IVERTEXMAPPER_H
 
// Gaudi
#include "GaudiKernel/IAlgTool.h"
 
#include "GeoPrimitives/GeoPrimitives.h"
#include "TrkSurfaces/Surface.h"
#include "TrkGeometry/Layer.h"
 
namespace Trk {
    
  class TrackingVolume;
 
  struct MappedVertex {
      
      Amg::Vector3D         localPosition;
      const Surface*        surface;
      int                   identifierHash;
 
      const Layer*          layer;
      int                   layerIndex;
      
      const TrackingVolume* trackingVolume;
 
      bool                  valid;
      
      MappedVertex(const Amg::Vector3D& lPosition, 
                   const Surface& mSurface,
                   const Layer& mLayer,
                   const TrackingVolume& mVolume) :
        localPosition(lPosition),
        surface(&mSurface),
        identifierHash(mSurface.associatedDetectorElement() ? int(mSurface.associatedDetectorElement()->identifyHash()) : -1),
        layer(&mLayer),
        layerIndex(mLayer.layerIndex().value()),
        trackingVolume(&mVolume),
        valid(true)
      {}       
      
       MappedVertex() :
         localPosition(0.,0.,0.),
         surface(nullptr),
         identifierHash(-1),
         layer(nullptr),
         layerIndex(-1),
         trackingVolume(nullptr),
         valid(false)
       {}       
      
      
  };
 

  
  class IVertexMapper : virtual public IAlgTool {
      
     public:
    DeclareInterfaceID(IVertexMapper, 1, 0);
         
       virtual ~IVertexMapper(){}
       
       virtual MappedVertex mapToLocal(const Amg::Vector3D& vertex) const = 0;
 
   };
 
} // end of namespace
 
#endif // TRKDETDESCRINTERFACES_IVERTEXMAPPER_H