John Barrett writes: > > If each client instance specified "I'm only interested in events which > happen within 20deg of my current position" (use a square around current > lat/lon offset by the range specified, rather than circular) -- should be > very fast for the server to do that check before forwarding data to a given > client
Please - remember FGFS is not a flat earth system so get rid of the degrees and the square degree block concepts, as these are very inefficient and inaccurate when operating on a sphere. Position is an ECF vector and distance can be degrees of arc if you insist, but 'chord distance' is a one to one mapping and is *much* quicker to compute. http://www.flightgear.org/Docs/Scenery/CoordinateSystem/CoordinateSystem.html Norman _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
