Nektar::SpatialDomains::GeometryHash Struct Reference

Unary function that constructs a hash of a Geometry object, based on the vertex IDs. More...

#include <Geometry.h>

Inheritance diagram for Nektar::SpatialDomains::GeometryHash:

Public Member Functions
std::size_t	operator() (GeometrySharedPtr const &p) const

Detailed Description

Unary function that constructs a hash of a Geometry object, based on the vertex IDs.

Definition at line 247 of file Geometry.h.

Member Function Documentation

operator()()

std::size_t Nektar::SpatialDomains::GeometryHash::operator() ( GeometrySharedPtr const &  p ) const

inline

Definition at line 249 of file Geometry.h.

References Nektar::hash_range().

    {
        int i;
        size_t seed  = 0;
        int nVert = p->GetNumVerts();
        std::vector<unsigned int> ids(nVert);

        for (i = 0; i < nVert; ++i)
        {
            ids[i] = p->GetVid(i);
        }
        std::sort(ids.begin(), ids.end());
        hash_range(seed, ids.begin(), ids.end());

        return seed;
    }