Re: [Flightgear-devel] jsbsim wind correction in opposite direction

2009-04-03 Thread gerard robin
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, > >

Re: [Flightgear-devel] jsbsim wind correction in opposite direction

2009-04-02 Thread gerard robin
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

Re: [Flightgear-devel] jsbsim wind correction in opposite direction

2009-04-01 Thread gerard robin
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, > >

Re: [Flightgear-devel] jsbsim wind correction in opposite direction

2009-04-01 Thread jean pellotier
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"

Re: [Flightgear-devel] jsbsim wind correction in opposite direction

2009-03-30 Thread Jon S. Berndt
> Jon S. Berndt wrote: > > This question comes up sometimes, and then a fix is made. There may > be a > > misinterpretation in the interface between FlightGear and JSBSim > about > > winds. For instance, when a wind is specified is that a from > direction or a > > "to" direction? JSBSim interprets

Re: [Flightgear-devel] jsbsim wind correction in opposite direction

2009-03-29 Thread Jari Häkkinen
Jon S. Berndt wrote: > This question comes up sometimes, and then a fix is made. There may be a > misinterpretation in the interface between FlightGear and JSBSim about > winds. For instance, when a wind is specified is that a from direction or a > "to" direction? JSBSim interprets wind specificati

Re: [Flightgear-devel] jsbsim wind correction in opposite direction

2009-03-29 Thread Jon S. Berndt
> hi, > > with last update, i think that jsbsim is applying the wind correction > in > opposite direction. > i tried to follow a tanker first with a F-4N, and it was the same with > the c172p, facing wind from environment, air speed was equal to ground > speed minus wind speed. > that was not the

[Flightgear-devel] jsbsim wind correction in opposite direction

2009-03-29 Thread jean pellotier
hi, with last update, i think that jsbsim is applying the wind correction in opposite direction. i tried to follow a tanker first with a F-4N, and it was the same with the c172p, facing wind from environment, air speed was equal to ground speed minus wind speed. that was not the case last time