/// <summary>
///
/// </summary>
/// <param name="vertexCapacity"></param>
/// <param name="hedgeCapacity"></param>
public HeStructure(int hedgeCapacity = DefaultCapacity)
{
_hedges = new HalfedgeList <E>(hedgeCapacity);
_edges = new EdgeListView <E>(_hedges);
}
/// <summary>
///
/// </summary>
/// <param name="halfedges"></param>
internal EdgeListView(HalfedgeList <E> halfedges)
{
_hedges = halfedges;
}