On Tue, May 6, 2008 at 10:34 PM, Iván Sánchez Ortega <[EMAIL PROTECTED]> wrote: > Namely, that the inner hulls (rings) of a multipolygon must have the inverse > direction of the outer hull (ring), or else some renderers will bork up the > result. See:
I keep hearing that assertion but no evidence. At least Mapnik should have no problem. If there is a problem it's a bug that should be fixed. Or at the very least *documented*. > http://wiki.openstreetmap.org/index.php/Relations/Multipolygon This also provides no details about the problem to be solved. Even the clockwiseness is mentioned only as a "may be useful". Given a set of closed rings that don't cross you can unambiguously draw a polygon with it. Computer are very good at working out such details. People on the other hand, are not. Ergo, let the people draw the shapes and let the computers sort out the drawing. Have a nice day, -- Martijn van Oosterhout <[EMAIL PROTECTED]> http://svana.org/kleptog/ _______________________________________________ dev mailing list [email protected] http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/dev
