In message <[EMAIL PROTECTED]>, Greg Long <[EMAIL PROTECTED]> writes: > OK, NOW we're talking - do you have any of that more precise data you could > avail derived from the PEDR files? (Did you generate your own EGDR?) the > 1/64 EGDR data is 506mb as I recall - yours would be close to 2gb. >
The process went roughly like this:- download all PEDR TAB files (took a couple of days) Convert from binary to ascii (easier to work with) (3 hours) Sort into lattitude/longitude (24 hours) Combine all the data to produce 1x1 degree files for the whole surface (48hr) Interpolate across all the files to give a 30 arc second regular grid (1wk) Convert each 1x1 degree interpolated file into a 30 arc second DEM (48hr) Run Terragear (4 days) The final flightgear scenery is about 15gigs. It must be said though, there are some bad orbits in the mola data which show up as obvious lines across the globe following the orbital path - we're working on a way of removing them. Phil ****************************************************************** * Phil Summers MEng, * "Getting right to the * * Computer Science Dept * heart of matters... * * University of Wales, Aberystwyth * It's the heart that * * [EMAIL PROTECTED] * matters more" * ****************************************************************** * Tel: +44 (0)1970 621528 * * Fax: +44 (0)1970 622455 * * WWW: http://users.aber.ac.uk/prs94 * ****************************************************************** _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
