[OSM-newbies] Calculating Bounding Box dimensions from a centred image

[Dirk-Lüder Kreie]

Bill Ricker schrieb:
>      Does anyone know if it is possible to produce an image (with say
>     nik2img.py or mapnik's generate_image.py) and calculate the x,y
>     coordinate in lat,long for the bottom left and top right corners of
>     the image?
> 
> It must be possible, but offhand I don't know where the reverse
> projection calculation is available.
> This question may have to go to one of the technical mailing lists.
> 
> Are you heading for a GeoTiff for your overlay? If so, there's a how-to
> at http://mapsfromscratch.com/notes.html
> that may help.

There might be helpful code in the Tiles at home project, namely
http://svn.openstreetmap.org/applications/rendering/tilesAtHome-dev/trunk/lib/tahproject.pm

-- 

Dirk-Lüder "Deelkar" Kreie
Bremen - 53.0901°N 8.7868°E

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