static public void CopyAndReplaceEdge(IVertex baseVertex, string MetaValue, IVertex EdgeVertex)
{
IEdge toReplace = GraphUtil.FindEdgeByMetaValue(baseVertex, MetaValue);
if (toReplace == null)
{
throw new Exception("Vertex does not have \"" + MetaValue + "\" edge");
}
baseVertex.DeleteEdge(toReplace);
IVertex edge = baseVertex.AddVertex(toReplace.Meta, null);
IVertex r = MinusZero.Instance.Root;
edge.AddEdge(r.Get(@"System\Meta\ZeroTypes\Edge\From"), EdgeVertex.Get("From:"));
edge.AddEdge(r.Get(@"System\Meta\ZeroTypes\Edge\Meta"), EdgeVertex.Get("Meta:"));
edge.AddEdge(r.Get(@"System\Meta\ZeroTypes\Edge\To"), EdgeVertex.Get("To:"));
}