std::hash< G4Polyhedron > Struct Reference

Public Member Functions
std::size_t	operator() (const G4Polyhedron &ph) const

Detailed Description

Definition at line 84 of file G4VtkSceneHandler.cc.

Member Function Documentation

operator()()

std::size_t std::hash< G4Polyhedron >::operator() ( const G4Polyhedron &  ph ) const

inline

Definition at line 85 of file G4VtkSceneHandler.cc.

                                                       {
      using std::size_t;
      using std::hash;
 
      G4bool notLastFace;
      G4Point3D vertex[4];
      G4int edgeFlag[4];
      G4Normal3D normals[4];
      G4int nEdges;
 
      std::size_t h = 0;
 
      do {
        notLastFace = ph.GetNextFacet(nEdges, vertex, edgeFlag, normals);
 
        for (int i = 0; i < nEdges; i++) {
          std::size_t hx = std::hash<double>()(vertex[i].x());
          std::size_t hy = std::hash<double>()(vertex[i].y());
          std::size_t hz = std::hash<double>()(vertex[i].z());
          std::hash_combine(h,hx);
          std::hash_combine(h,hy);
          std::hash_combine(h,hz);
        }
      } while (notLastFace);
 
      return h;
    }

References HepPolyhedron::GetNextFacet(), hash(), std::hash_combine(), HepGeom::BasicVector3D< T >::x(), HepGeom::BasicVector3D< T >::y(), and HepGeom::BasicVector3D< T >::z().

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The documentation for this struct was generated from the following file:

• source/visualization/Vtk/src/G4VtkSceneHandler.cc