On jeudi 02 avril 2009, gerard robin wrote: > On mercredi 01 avril 2009, jean pellotier wrote: > > Jon S. Berndt a écrit : > > > Yes, the difference stems from the need to know what the wind is > > > bringing, and the vectorial definition of where it's going. The problem > > > was that sometimes we just had a vector where we expected to see North, > > > East, and Down, wind components. Well ... fine, but is that "to" or > > > "from". The convention was unspecified, and that caused confusion. From > > > the FlightGear side, I can see winds being specified either way. In the > > > flight dynamics code, however, I expect to see a wind velocity vector - > > > the direction it's going. The question is, where does the conversion to > > > the wind velocity vector form break? > > > > > > Jon > > > > After having seen in some places in last JSBSim code that wind direction > > is the direction the wind is toward, here's a patch that revert the > > values used in wind vector for JSBSim, that work for me, wind is now > > correctly applied. > > i didn't tested vertical composante . > > > > hope that helps > > > > jano > > I don' t exactly understand the problem, with JSBSim aircrafts if we have > a cross wind, the direction of the force is correct according to the > direction of the wind. > I did not noticed any error .
ooops, you are right , i mistmatched the aircraft behaviour and the from to wind . -- Gérard http://pagesperso-orange.fr/GRTux/ J'ai décidé d'être heureux parce que c'est bon pour la santé. Voltaire ------------------------------------------------------------------------------ _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
