[Tilesathome] planet.osm based lowzoom ?

Matthias Julius lists at julius-net.net
Tue Jun 19 16:44:43 BST 2007


Frederik Ramm <frederik at remote.org> writes:

> Hi,
>
>> The client could also render "lowzoom z12 tiles".  That would be z12
>> tiles rendered with a special style sheet to make the tiles better
>> suited for shrinking.
>
> Yes, this has already been suggested by a few people and I think it is
> a good idea. We'd have to create a new layer for this named  "lowzoom"
> or so, where clients can then upload their level-12 tiles  in the
> special "prepared for lowzoom" version.
>
> However it will only carry us a few levels up, maybe cover 11, 10 and
> 9 or so, but for levels like 7 it would probably be better to have
> something "special".

Yes, and that's why it is not perfect.  One could expand the idea and
render another level-12 layer that will be used for z6 to z8 or so.  I
know this is getting ugly.

We could also setup a special client that renders those tiles (lowzoom
z12 only) and stores them locally.  It could be fed by the same
request queue as the regular clients.  Then once a day it could create
lowzoom tiles where the z12 tiles have changed.

Matthias





More information about the Tilesathome mailing list