/// <summary>
/// Removes DirectedEdge from its from-Node and from this PlanarGraph. Notice:
/// This method does not remove the Nodes associated with the DirectedEdge,
/// even if the removal of the DirectedEdge reduces the degree of a Node to
/// zero.
/// </summary>
/// <param name="de"></param>
public virtual void Remove(DirectedEdge de)
{
DirectedEdge sym = de.Sym;
if (sym != null)
sym.Sym = null;
de.FromNode.OutEdges.Remove(de);
de.Remove();
_dirEdges.Remove(de);
}
/// <summary>
/// Removes DirectedEdge from its from-Node and from this PlanarGraph. Notice:
/// This method does not remove the Nodes associated with the DirectedEdge,
/// even if the removal of the DirectedEdge reduces the degree of a Node to
/// zero.
/// </summary>
/// <param name="de"></param>
public virtual void Remove(DirectedEdge de)
{
DirectedEdge sym = de.Sym;
if (sym != null)
sym.Sym = null;
de.FromNode.OutEdges.Remove(de);
de.Remove();
_dirEdges.Remove(de);
}
