Richard > I have considered trying to extract higher resolution DEM-like data from > OS maps by scanning the maps and doing some image analysis > (tracing the contour lines and roads etc), but it is a daunting task, and > probably illegal too.
Crown Copyright is jealously guarded. The Ordnance Survey had an entire department for this last time I looked. However, all is not lost - you can use old maps which are out of copyright ( >50 years - not sure of the exact requirement here). The changes to the terrain in the intervening years are probably not all that significant apart from Penmaenmawr of course. Mally --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.505 / Virus Database: 302 - Release Date: 30/07/03 _______________________________________________ Flightgear-users mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-users
