Jon S Berndt writes: >. We can get complicated at >some point in the future. Right now all we want is to be >able to determine the elevation at a given lat/lon.
Jon I URGE you and everyone else to think in terms of 'direction cosine' XYZ's instead of lat/lons and where possible to use the preexisting matrices to convert between your local xyz space and the global FGFS xyz space. Usually this will consist of nothing more then a translation and a rotation. Otherwise you end up taking the sin/cos atan etc of the same angles repetitively on both sides of the 'Module divide'. I believe the necessary Matrices are all exposed by the global->view pointer so your Interface routine can grab whatever it needs Cheers Norman _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
