Hello mapnik users, Hello Artem, I'm using mapnik 0.7.1 through python-2.6 bindings on Windows 2008 to render osm data.
The use case is pretty simple: m = mapnik.Map(512,256,"+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgri...@null +no_defs") mapnik.load_map(m,'./osm/osm.xml') bbox = mapnik.Envelope(mapnik.Coord(2906441.56,5532817.86), mapnik.Coord(2907664.56,5533429.35)) m.zoom_to_box(bbox) im = mapnik.Image(m.width,m.height) map_output = 'map.png' mapnik.render(m,im) im.save(map_output) The problem I'm facing is that if I modify Image's size, e.g. im = mapnik.Image(m.width*2,m.height*2) the generated image has a modified bounding box, which is something I do not want. So, my question is this: how can I make sure that the geographical coordinates remain the same (e.g. specified through map.zoom_to_box), no matter the resolution of the output image it is rendered into? Thank you for any pointers, George. _______________________________________________ Mapnik-users mailing list [email protected] https://lists.berlios.de/mailman/listinfo/mapnik-users
