static GraphModel createUndirectedCopy(GraphModel network) {
GraphModel U = new GraphModel(false);
for (VertexModel scan : network) {
VertexModel dup = new VertexModel(scan);
U.addVertex(dup);
scan.getProp().obj = dup;
dup.getProp().obj = scan;
}
for (EdgeModel scan : network.edges()) {
EdgeModel dup =
new EdgeModel(
scan,
(VertexModel) scan.source.getProp().obj,
(VertexModel) scan.target.getProp().obj);
U.addEdge(dup);
setDup(scan, dup);
}
return U;
}
