On dimanche 07 décembre 2008, Ron Jensen wrote:
> On Mon, 2008-12-08 at 03:44 +0900, Tatsuhiro Nishioka wrote:
> > Hi Gérard, and James,
> >
> > Thanks for the info,
> > I tried some other JSBSim aircraft like A6M2-jsbsim, f18, f15, etc, and
> > found many fall into either black out or white out, which never happens
> > on fgfs without the JSBSim update.
> >
> > As this update is included in Durk's tarball, we definitely need to
> > either cut out the JSBSim update on 11/30 or fix this issue before the
> > release. I think latter is better but I don't know if we can fix this
> > easily.... need many helps from you guys.
> >
> > I now feel very much that I wish we had a release branch for separating
> > two things, concentrating on bug-hunting for release and actively
> > committing new features that might be buggy but very attractive.
> >
> > Best,
> >
> > Tat
>
> Anders found this bug. It was uninitialized variables in FGTank. The
> change is already in CVS, but here's the patch anyway:
>
> Index: src/FDM/JSBSim/models/propulsion/FGTank.cpp
> ===================================================================
> RCS file:
> /var/cvs/FlightGear-0.9/source/src/FDM/JSBSim/models/propulsion/FGTank.cpp,
>v retrieving revision 1.6
> diff -u -p -r1.6 FGTank.cpp
> --- src/FDM/JSBSim/models/propulsion/FGTank.cpp 30 Nov 2008 10:44:30
> -0000 1.6 +++ src/FDM/JSBSim/models/propulsion/FGTank.cpp 7 Dec 2008
> 19:41:38 -0000 @@ -59,6 +59,7 @@ FGTank::FGTank(FGFDMExec* exec, Element*
> Element* element_Grain;
> Area = 1.0;
> Temperature = -9999.0;
> + Ixx = Iyy = Izz = 0.0;
> Auxiliary = exec->GetAuxiliary();
> Radius = Capacity = Contents = Standpipe = Length = InnerRadius = 0.0;
> PropertyManager = exec->GetPropertyManager();
>
>
I hope that solve the problem for you.
Here i have rebuilt FG with that patch and recovered one of my old JSBSim
Aircraft FDM which did not worked,
i am longer getting the same error , black screen and
CullVisitor::apply(Geode&) detected NaN,
depth=nan, center=(-3.09272 -0.110464 -0.924417),
matrix={
nan nan nan nan
nan nan nan nan
nan nan nan nan
nan nan nan nan
}
Anyhow, as i told before i have solved it in a different way.
Cheers
--
Gérard
http://pagesperso-orange.fr/GRTux/
J'ai décidé d'être heureux parce que c'est bon pour la santé.
Voltaire
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