Am Montag, 30. September 2013, 12:52:08 schrieb James Turner:
> On 30 Sep 2013, at 12:29, Eric van den Berg <> 
> > The other stuff I asked Dirk to add as it makes our extra500 (GPSS) AP
> > design a lot easier.
> Incidentally if you (Dirk) are looking at this code, the really great thing
> would be to get the turn-anticipation code enabled. All the pieces are
> there (compute a standard rate turn based on inbound / outbound leg
> courses, compute time before WPT to start turning based on ground-speed),
> but it's always been disabled because I couldn't figure out a stable
> formula for CDI deviation / XTK in the turn, and especially when
> transitioning between turn-anticipation and normal leg modes. (So there was
> an ugly wobble when turn anticipation starts and ends, with the AP did not
> like).
my first thought is a fade in?/out 
XTK leg1 --fade--> XTK turn --fade--> XTK leg2
                            switch next WPT
> Any comments, or contributions to this, would be great, since a few people
> have ended up implementing kludges at turn-anticipation in Nasal, when this
> code should really do it all from C++ nicely.
> Kind regards,
> James

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