On Tue, 10 Sep 2019 at 23:41, Graeme Fitzpatrick <graemefi...@gmail.com> wrote:
> > Would it need a multipolygon? My impression of the ODA is an open patch of > ground in / beside a residential area. If that is the case, wouldn't it be > much simpler to just mark a new area in as landuse=o_d_a? (accept it > wouldn't be abbreviated) > Overlapping landuse often works, but only because the carto people juggle z-indexes to make it work. They're not overly happy doing that, I believe. It also doesn't always work well: if ever you've put a pond in a wood without a multipolygon you get waterlogged trees. It also makes database queries somewhat more simpler if you're asking what is at point A and you get one answer rather than two answers, or one of two answers chosen at random. A multipolygon is a little more work for the mapper, but not much more. Now I expect both the carto and db people to tell me I'm wrong about that. If they do, I'll just point out that it's not wrong to use a multipolygon for this. -- Paul
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