Jon S Berndt writes: > If the aircraft is not aligned vertically (or nearly so), > the wingtips (or other contact points) will scrape and > gear location will be irrelevant. Indeed, at extreme > angles the gear will either be inaccessible or will be > treated as a hard contact point. 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.
This is true in extreme cases, but even at angles where the gear would hit first (maybe more so for certain aircraft configurations), the gear extension angle and extension amount will move the lon/lat of the contact point. Perhaps the differences won't be significant enough to significnatly change the resulting ground elevation? If we run the gear code fast enough this will approach reality anyway ... as in the gear extension amount from the last frame allows us to calculate the accurate lat/lon of the contact point for the next frame. And the ground elevation then feeds back into the gear extension amount which can be fed forward to the next frame. Assuming the changes are small from one frame to the next this should work ok ... and as you increase the rate of your gear integration, this will become increasingly valid. Curt. -- Curtis Olson IVLab / HumanFIRST Program FlightGear Project Twin Cities [EMAIL PROTECTED] [EMAIL PROTECTED] Minnesota http://www.menet.umn.edu/~curt http://www.flightgear.org _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
