10. The method of claim 9 , further comprising determining a set of paths through each of the candidate relative layouts, and generating the relative position constraints from the sets of paths.
10. The method of claim 9 , further comprising determining a set of paths through each of the candidate relative layouts, and generating the relative position constraints from the sets of paths. 11. The method of claim 10 , wherein the generating of the relative position constraints comprises generating a constraint for each traversal of the paths through a division of the corresponding candidate relative layouts.