Hi all! Best thing to do would be bounding boxes. It's fast to calculate and relative accurate.
You can calculate bounding box for each object one time and use every time! > On Friday 02 June 2006 01:44, Mick - wrote: > > I'm trying to create a type of collision avoidance capability, and would > > need AGL data from in front of the aircraft. > > Could someone suggest where (in the code) I could get "projected elevation" > > information, for example, AGL data 10 meters in front. My understanding is > > that AGL is taken from the nose of the aircraft. > In C++ code src/Scenery/scenery.hxx one of: > > FGScenery::get_elevation_m; > FGScenery::get_cart_elevation_m; > > should do what you need. > Dependent on how often you need to compute that and how far away from the > actual aircraft you need to know that the groundcache accessible from > FGInterface might be faster. > That provides you with the same information in a small area around the > aircraft (usually only the bonunding sphere of the aircraft model plus a few > meters) in a more performant way. > > Greetings > > Mathias > -- Gonzalo Aguilar Delgado - Ingeniero en Informática [ Seguridad & Medios de pago ] _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel