private void ClearEdgeBp()
{
if (_edgeBp == null)
{
return;
}
Area.RemoveCustomChildControl(_edgeBp.EdgePath);
_edgeBp.Dispose();
_edgeBp = null;
}
public void CreateVirtualEdge(VertexControl source, Point mousePos)
{
_edgeBp = new EdgeBlueprint(source, mousePos, Brushes.White);
Area.InsertCustomChildControl(0, _edgeBp.EdgePath);
}