[Talk-GB] Ordnance Survey

2009-04-23 Thread Richard Fairhurst
The Treasury published its review of Ordnance Survey yesterday. It's a real damp squib. As has been endlessly debated many times before, there's a lot of stuff OSM can survey itself - well, most stuff, really - but the real killer is things like boundary data, which is very difficult or

Re: [Talk-GB] Generating Mapnik Images to epsg:27700 (British National Grid) Projection

2009-04-23 Thread Kev js1982
Argh, newbie mistake own up time. Firstly as far as I can tell the actual projection stuff in the generate image isn't needed when passing in coords in the correct projection - the lines bbox = Envelope(west,south,east,north) m.zoom_to_box(bbox) are sufficient when using geocodes. The main