On Tue, 2 Oct 2018 17:01:33 +0100 Paul Allen <pla16...@gmail.com> wrote:
> Even if a multipolygon can have many disconnected outers, it seems > I'd have to make each university > building an outer. And then there are no inners. So even if it can > be done that way, it seems like > an abuse of the concept, which I thought was to be able to punch > exclusionary holes in areas. "Many outers, few if any inners" is a *very* common way to map complicated geometry. A quick look at my local area shows a half-dozen parks, a campground, a school, and a military base, as well as a town that would be such a multipolygon if the "boundary" type didn't exist. Punching holes in an area is a common use of multipolygons, because it can't be done any other way, but it's hardly the only use. (It's also very common outside of OSM. My county's land-ownership database has thousands of these, where a parcel is split by the right-of-way for a public road.) -- Mark _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
