[Tilesathome] Tackling the Z12 tile enclosed by landuse issue

[80n]

On Dec 19, 2007 4:49 PM, Martijn van Oosterhout <kleptog at gmail.com> wrote:

> On Dec 19, 2007 10:14 AM, 80n <80n80n at gmail.com> wrote:
> > Since osmxapi doesn't have this limitation I'm wondering if it would be
> > feasible to download some selected ways (landuse=forest, etc) from
> osmxapi
> > [1] for a much larger area.  These could then be merged with the z12
> data
> > from the main api.
>
> I was thinking if osmxapi could note while loading if an area exceeds
> the size of a zoom-12 tile, then a special search for
> [osmxapi:oversize=1] would return only those objects. This should be
> fairly quick.
>

This should be feasible.  I'm thinking something like:

/api/0.5/way[bbox=w,x,y,z]/oversize

would return all ways that are not in the bbox but have an extent that
*includes* the bbox.


>
> Really, it's a bug in the API that such polygons arn't returned since
> they intersect the requested area.
>
> Most of the suggestions here seem to suffer from the problem that
> they're specific to zoom-12 rendering. If the data ever gets detailed
> enough that we switch to zoom13 or 14, we have ot go add lots more
> such nodes...
>

Yes, we shouldn't add any more z12 assumptions.


>
> Have a nice day,
> --
> Martijn van Oosterhout <kleptog at gmail.com> http://svana.org/kleptog/
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/tilesathome/attachments/20071219/c6c75c9a/attachment.html>