[Tagging] type=bounday

[stevea]

On Mar 28, 2022, at 1:19 PM, Colin Smale <colin.smale at xs4all.nl> wrote:
>> On 03/28/2022 9:31 PM Minh Nguyen <minh at nguyen.cincinnati.oh.us> wrote:
>> Boundary relations can indicate the capital (admin_centre) or cultural 
>> center (label) of an administrative area.
> 
> Since when has the "label" indicated the cultural centre? AFAIK it's a hint for the renderer, useful when the geometry of the area is such that classic placement algorithms such as centroid would pick a bad place.

Thanks to Minh who has refreshed us with crucial distinctions between boundary and multipolygon.  As a seasoned OSM contributor of both, I still sometimes have to check a wiki or relevant examples to make sure my new tagging on these slightly-similar, but just-different-enough entities is exactly right.  The distinctions are subtle, but they are there.

An admin_centre node is absolutely correct on a state capital (e.g. capitol building), county government administration center building, city hall or "traditional cultural heart" of a community, especially when the latter is the strongest component of what might be described as the "centre" of a boundary-enclosed area, lacking something more specific, politically accurate, or actually known to the OSM contributor adding the datum.  I believe adding admin_centre or label represents an actual, political "thing," rather than a hint to a renderer for label placement.  Though, if this helps a renderer, all the better.