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 ti...@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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