David Megginson wrote: > I think we've always used +z up. YASim uses +z down internally, if > I recall correctly, but that shouldn't affect anything else.
Heh, actually... YASim is +z up too. For the record, the YASim internal aircraft coordinate frame: + Take your right hand. + Point your index finger away from you. + You thumb goes up in the air, like you're about to shoot an imaginary gun. + You middle finger now points of to your left at right angles. You are the pilot. Your index finger, thumb, and middle finger point along the X (forward), Y (left), and Z (up) axis respectively. Since one's right hand is typically the tool used to figure out axis conventions, and since this is the simples way to hold it, it seemed like the natural choice. To boot, I'm a lefty, so I can do this while holding a pen. :) Andy -- Andrew J. Ross NextBus Information Systems Senior Software Engineer Emeryville, CA [EMAIL PROTECTED] http://www.nextbus.com "Men go crazy in conflagrations. They only get better one by one." - Sting (misquoted) _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
