On Mon, Aug 24, 2009 at 02:07:49PM -0700, Premkumar Mani wrote:
> Probably I am posting this at a wrong forum, but please pardon me.
> 
> I have the a setup with OSM + Mapnik + tilecache.  My application accesses
> the tiles using the google notation of z/x/y.png.   What I noticed is that
> the Y value is counted from bottom to top, as compared to Top to bottom in
> VE or Google maps.  Does anybody know why this happens?

This is not a Mapnik question. It is a TileCache question. 

You are accessing the tiles in TileCache's "TMS" service, presumably. TMS
goes from bottom to top, not top to bottom.

You can change this by adding ?type=google to the end of the TMS url. 

Regards,
-- 
Christopher Schmidt
MetaCarta
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