+
+ if (good) {
+ for(Vertex p = this; p != null; p = (p.bound_to==this)?null:p.bound_to)
+ p.reComputeErrorAround();
+ } else {
+ for(Vertex p = this; p != null; p = (p.bound_to==this)?null:p.bound_to)
+ p.transform(Matrix.translate(v.times(-1)));
+ }