[Talk-us] CDPs and admin_level

Anthony osm at inbox.org
Tue Oct 13 15:27:39 BST 2009


On Tue, Oct 13, 2009 at 5:31 AM, David ``Smith'' <vidthekid at gmail.com> wrote:
> On Mon, Oct 12, 2009 at 8:14 PM, Anthony <osm at inbox.org> wrote:
>> You're still acting like the tags are put on regions, when the tags
>> are actually put on borders.
>
> It's both.  The relation (specifically, boundary and multipolygon
> relations) is meant to describe not just some borders of a region, but
> all of its borders, in a way to make it clear whether a given point is
> in that region or not.  Therefore, the relation defines a region.  You
> put tags on the relation, so you are effectively tagging the region,
> not just its borders.

I was talking specifically about the "admin_level" tag though, since
that's the one you were saying shouldn't cross.  Obviously the
boundary relation should be defined to reflect reality - if a city
region intersects multiple county regions, then that's the way it has
to be tagged.




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