On Mon, Oct 8, 2012 at 10:17 AM, Martin Koppenhoefer <[email protected] > wrote:
> 2012/10/8 Igor Brejc <[email protected]>: > > it has to be disregarded. Just look at multipolygons Wiki page to see how > > many exceptions are allowed because people map things differently. > > > one, touching inner rings, or which other exceptions do you intend? > > cheers, > Martin > In addition to touching inner rings, some other: 1. Inner/outer roles - some members have incorrect roles, some don't even have a role( http://wiki.openstreetmap.org/wiki/Relation:multipolygon#Members). If you want to extract as much of the OSM data as possible and in a useful form, you have to determine the role geometrically and ignore what's written. 2. http://wiki.openstreetmap.org/wiki/Relation:multipolygon#Tagging
_______________________________________________ dev mailing list [email protected] http://lists.openstreetmap.org/listinfo/dev
