[Tilesathome] Mixed tiles rendered incorrectly and a couple of other questions

[Christopher Schmidt]

On Thu, Nov 15, 2007 at 11:30:23AM +0800, D Tucny wrote:
> Yesterday I noticed that there are new commands available on
> > informationfreeway.org with which I assume you can mark tiles as sea, land
> > or mixed. Is this mentioned/explained anywhere? I don't see any effect,
> > though. Plus the marking score seems to increase by 0.1 from tile to tile.
> > Does this make sense?
> 
> 
> It was mentioned a few times in the mailing list, but I can't find it now...
> Basically it sends off the info to a server which records the remarking,
> then someone can download that info and make a new oceantiles file at some
> point... This is used by the tiles at home renderers so that they know how to
> return an empty tile, also it seems, so they can do some other magic in
> certain cases... As far as I know, this doesn't do anything with mapnik's
> rendering...

Correct. There is a manual process, which talks to the API, and for
tiles with a score above '1.0', it makes the requested change to the
tiles in the file that t at h clients use to render, which then need to be
checked back out from the database.

One of the things I'd like to change is to make the t at h client get this
data from the t at h server: this way, we wouldn't need to update t at h
clients to get updates, or have issues with t at h clients having out of
date data. However, my short todo list has other things on it, so this
will not be happening right away.

Regards,
-- 
Christopher Schmidt
MetaCarta