[Tagging] tagging the multipolygon model (was landuse and military)

Anthony osm at inbox.org
Thu Oct 15 17:57:33 BST 2009


On Thu, Oct 15, 2009 at 12:43 PM, sly (sylvain letuffe)
<liste at letuffe.org> wrote:
> But my point is also toward another consideration :
> Mappers will tend to walk that way, and nothing can stop them. You can't force
> a mapper to add a thousand small lake in a forest to an inner polygon. Let's
> now ease our pain and accept it.

I do accept it, but it's wrong, so I want to fix it.  If we can come
up with a set of rules that makes it unambiguous how to fix the
situation, we should fix the data, once and for all, not force
everyone using the data to fix it each time they use it.

On Thu, Oct 15, 2009 at 12:48 PM, Dave F. <davefox at madasafish.com> wrote:
> Anthony wrote:
>> add a fixme=create_hole tag and a bot could go around fixing them...
> Hi Anthony
> Does this exist or is it a wish list item?

It's a rough proposal :).  Seems relatively easy.  Find the larger
polygon, multipolygon relation, or boundary relation which intersects
with the area and has the same primary tag (e.g. landuse).  If it is a
polygon, turn it into a multipolygon relation.  Then add the inner way
to the relation as an exclave or inner way.




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