}
private void ortholayout() {
ValidatorsProvider.connectednessValidate(sg, gd);
IEmbedding e = EmbeddorsFactory.getEmbedding(sg, gd);
e.construct();
sg = e.getPlanar();
if (LOG_LAYOUT) {
GraphDumper.printIncidenceToFile(sg, "l01embedded.txt");
GraphDumper.printFacesToFile(sg, gd, "l02faces.txt");
}