Real ret = 0;
Prob *p1 = unsmob_prob (sys1);
Prob *p2 = unsmob_prob (sys2);
- Skyline_pair *sky1 = Skyline_pair::unsmob (p1->get_property ("skylines"));
- Skyline_pair *sky2 = Skyline_pair::unsmob (p2->get_property ("skylines"));
+ Skyline_pair *sky1 = Skyline_pair::unsmob (p1->get_property ("vertical-skylines"));
+ Skyline_pair *sky2 = Skyline_pair::unsmob (p2->get_property ("vertical-skylines"));
if (sky1 && sky2)
ret = (*sky1)[DOWN].distance ((*sky2)[UP]);