> > 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. -- Bill [email protected] [email protected]
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