[OSM-talk-be] How to map an amenity that spans several buildings?

[Marc Gemis]

3 possible solutions:

* area around the 4 buildings, tagged with shop=* and all the other
tags for the shop
* site-relation, although that should only be used in case the object
consists of non-adjacent areas
* multi-polygon, although that one should be used primarily for donuts
like features. JOSM will probably complain when you add 4 adjacent
outer rings.

So I guess that the first solution is the only one that really works
in this situation.

regards

m

On Sun, Jul 9, 2017 at 1:53 PM, Yves bxl-forever
<bxl-forever at linuxmail.org> wrote:
> Hi,
>
> Philippe raised an interesting point about the following note.
> http://www.openstreetmap.org/note/722850
>
> There are several occurrences where a shop or an amenity spans over several buildings.
> Buildings have their own id based on UrbIS data, I suppose it will not be appropriate to merge them, even when they appear as being one single house.
>
> For this very case (Maison Dandoy), the shop spans over 4 different buildings and they does not seem to have any other use (nobody lives upstairs and there is no door): perhaps a multipolygon will work here.  But if there is a solution that covers most cases, it might be useful to hear about, and avoid that careless mappers would duplicate nodes or ask endless questions about "missing" items.
>
> Any idea or suggestion?
>
> Many thanks.
> Yves
>
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