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

[Marc Gemis]

a fourth method would be to just add a node at the entrance of the
shop with all details. That might be the preferred way if not all
floors in the building are occupied by the shop.
The indoor mapping scheme could solve that problem.

m.

On Sun, Jul 9, 2017 at 9:15 PM, Marc Gemis <marc.gemis at gmail.com> wrote:
> 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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