/// <summary>
/// Deletes selected vertices.
/// </summary>
public void DeleteSelected()
{
List <Vertex> lv = SelectedVertices.ToList();
foreach (Vertex v in lv)
{
Unselect(v);
Core.RemoveVertex(v);
}
List <Edge> le = SelectedEdges.ToList();
foreach (Edge e in le)
{
Unselect(e);
Core.RemoveEdge(e);
}
}
