On Tue, 2002-02-26 at 19:08, David Megginson wrote: > Andy Ross writes: > > > Hrm... I'm not liking the idea of specifying explicit, absolute angles > > as the interface here. First off is the problem of configuration -- > > what are the appropriate angles? If we put them in the property > > interface, then both the FDMs and the model need to know. If we use > > abstract coordinates, only the model cares. > > In fact, the model doesn't have to know if the FDM does, and > vice-versa -- I can just let my models trust the FDM, and any visual > anomalies will indicate an flight-model bug. > > > Also, this ties us to a particular style of surface design. Not all > > control surfaces simply rotate around a joint. In particular, flaps, > > slats, spoilers and speedbrakes often have a translational component. > > Should the FDM worry about this too? > > Good point. > > > And then there's the fact that YASim cares nothing at all about these > > numbers. Adding them to the FDM would do nothing but add complexity; > > there is nothing useful I can do with them. > > I hadn't realised that YASim didn't know the deflection angles. I'm > just as happy either way -- I had thought that the all the FDMs > already did know the angles, it wasn't worth making the 3D models > recalculate them, but it's not a lot of extra trouble (except for > Tony, if he has to change his last checkin).
Having JSBSim calculate normalized control surface positions is the hard part -- once that's done the changes to the property tree are not hard. > > > All the best, > > > David > > -- > David Megginson > [EMAIL PROTECTED] > > > _______________________________________________ > Flightgear-devel mailing list > [EMAIL PROTECTED] > http://mail.flightgear.org/mailman/listinfo/flightgear-devel -- Tony Peden [EMAIL PROTECTED] We all know Linux is great ... it does infinite loops in 5 seconds. -- attributed to Linus Torvalds _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
