[Tilesathome] Lowzoom changes

[80n]

On Fri, Apr 18, 2008 at 4:29 PM, Andrew McCarthy <me at andrewmccarthy.ie>
wrote:

> Hi again,
>
> Since 'jth' updated the wiki page on lowzoom tiles:
>        http://wiki.openstreetmap.org/index.php/Tiles%40home/lowzoom
> I think I understand how it's supposed to work:
>
> z8-z11
> • Create transparent caption tiles for levels z8-z11, and upload.
> • Download z12 captionless tiles, stitch them together to make z8-z11
>  captionless tiles. Overlay caption tiles to make "tile" tiles.
> • Upload all "tile" tiles and the single z8 captionless tile (for lower
>  zoomlevels)
>
> Am I right?
>
> If so:
>
> (1) attached is a patch for the layers.conf that does what jth described
>    in the wiki.
>
> (2) I believe the caption layers only include place=city, place=town,
>    place=country. Nothing else at all is needed? If so can the osmxapi
>    request in tilesGen.pl (line 688) be just:
>        node[place=town|city|country][bbox=...]
>    At the moment, it downloads mountains of other stuff that's
>    otherwise of no use. I'll admit I don't fully understand the rules
>    files.
>

This is correct.  The old request was left in place so as to not break the
old lowzoom method while things were in transition.  So, yes, it can be
changed, or better still, made into a parameter that is fetched from the
layers.conf file.



>
> (3) Can somebody set svn:executable on lowzoom_composite.pl? :)
>
> Thanks!
>
> Andrew
>
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