gistfile1.txt

	// Collapse edges 
	size_t beginningOfQuads = 2;
	for (size_t i = 0; i < numQuads; i++) {
		size_t numEdges = sh.num<Edge>(beginningOfQuads+i);
		while (numEdges > 4) {
			Edge* e = *sh.begin<Edge>(beginningOfQuads+i);
			CollapseEdge(g, e, e->vertex(0));
			numEdges--;
		}
	}