COST(1e2, edgewise_vertex_displacement_cost(vs->a));
COST(1e2, graph_layout_cost(vs->a));
COST(1e3, edge_length_variation_cost(vs->a));
-// COST(1e6, noncircular_rim_cost(vs->a));
+ COST(1e8, noncircular_rim_cost(vs->a));
if (printing) printf("| total %# e |", energy);