[OSM-dev] Fw: [Talk-GB] UK dev day - venue confirmed

Nick Whitelegg Nick.Whitelegg at solent.ac.uk
Wed Apr 25 18:58:45 BST 2007


Steve - meant to send this to the list but damned mail client wasn't 
having it..... :-(

>what're the coordinates in real money? (and why does infofreeway use 
>those numbers?)

I'd guess because they're the raw Mercator coordinates as stored in the 
postgis database.

BTW code to convert between Mercator coords and OSGB (based on Mapnik 
code, IIRC) available at:

http://trac.openstreetmap.org/browser/sites/other/freemap/javascript/converter.js 
(javascript)
http://trac.openstreetmap.org/browser/sites/other/freemap/common/latlong.php 
(php)

Nick




More information about the dev mailing list