2. Oct 2018 18:01 by pla16...@gmail.com <mailto:pla16...@gmail.com>:
> On Tue, Oct 2, 2018 at 4:39 PM Kevin Kenny <> kevin.b.ke...@gmail.com > <mailto:kevin.b.ke...@gmail.com>> > wrote: > >> On Tue, Oct 2, 2018 at 11:15 AM Paul Allen <>> pla16...@gmail.com >> <mailto:pla16...@gmail.com>>> > wrote: >> >> Why selecting buildings and tagging them to site relation is easier than >> >> selecting building and adding them to a multipolygon realation? >> > >> Are you labouring under the misapprehension that a multipolygon has to >> have a single outer ring? > > Sorta. As I read it the outer ring is a polygon. That polygon might be > composed of several> different ways but together they form an continuous > outline. You may have multiple disjointed outer ways. See for example https://www.openstreetmap.org/relation/61707 <https://www.openstreetmap.org/relation/61707> that is a park split by a major road. Or https://www.openstreetmap.org/relation/2226518 <https://www.openstreetmap.org/relation/2226518> - protected area that is not continous. > 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. Exactly. What you think can be improved to make this misconception less popular? > an abuse of the concept, > Not at all.
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