On 15/09/2008 22:07, Donald Allwright wrote: > The theory is that > if the SRTM data include an altitude reading for the lake itself (I > haven't actually checked this yet!), I should be able to use an approach > similar to what you suggest to get a much more accurate map. The holy > grail would be to be able to click somewhere within a lake, and the > software to automatically generate a perimeter. However I suspect that > will be a long way off, if it ever happens.
But will the accuracy be any better? SRTM seems to be 3 arc seconds outside the USA = approx 90m of latitude per pixel. David _______________________________________________ talk mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk
