private void setEdgeFaces() {
for (Face face : getFaces()) {
for (Edge edge : face.getEdges()) {
edge.getFaces().add(face);
}
}
}
private boolean isCellOpen(Cell cell) {
Set<Face> cellFaces = cell.getFaces();
for (Face face : cellFaces) {
for (Edge edge : face.getEdges()) {
Set<Face> faceSiblingsByEdge = new HashSet<Face>(face.getSiblings(edge));
faceSiblingsByEdge.retainAll(cellFaces);
if (faceSiblingsByEdge.size() == 0) {
return true;
}
}
}
return false;
}