Re: [Flightgear-devel] yasim(-test) vs fgfs
Joacim Persson wrote: I've discovered a difference between how fgfs calls the yasim solver, and how the yasim binary (aka yasim-test) does it. I have a -yasim.xml which doesn't pass yasim(-test) but which fgfs accepts... ?:-P So what is the difference? Number of iterations? That sounds like a bug. They are intended to produce identical behavior. Is it possible you have a yasim binary build from a different version of the code than your fgfs? Note specifically the recent incidence fix. Mathias Froelich wrote: I know of one difference: Ground intersection test Indeed. But the solver doesn't do any gear testing. Andy ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
Re: [Flightgear-devel] yasim(-test) vs fgfs
On Sat, 3 Dec 2005, Andy Ross wrote: That sounds like a bug. They are intended to produce identical behavior. Is it possible you have a yasim binary build from a different version of the code than your fgfs? My first thought too. The file I used was the AN-225-yasim.xml with the only modification of negating the sign of wing incidence -- to get a view of what yasim had to say about the model as it was before the recent yasim bugfix. (Reverting the fix, so to speak: setting wing incidence to -4. No twist settings in that file) Much to my surprise, yasim spitted it out again with: Solution results: Iterations: 10002 Drag Coefficient: 0.00 Lift Ratio: 40757985280.00 Cruise AoA: 2.074975 Tail Incidence: -2.490169 Approach Elevator: 0.00 CG: -7.222, -0.000, 3.603 SOLUTION FAILURE: Solution failed to converge after 1 iterations Fgfs, however, happily accepts it. ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
[Flightgear-devel] yasim(-test) vs fgfs
I've discovered a difference between how fgfs calls the yasim solver, and how the yasim binary (aka yasim-test) does it. I have a -yasim.xml which doesn't pass yasim(-test) but which fgfs accepts... ?:-P So what is the difference? Number of iterations? ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
Re: [Flightgear-devel] yasim(-test) vs fgfs
On Samstag 03 Dezember 2005 01:57, Joacim Persson wrote: I've discovered a difference between how fgfs calls the yasim solver, and how the yasim binary (aka yasim-test) does it. I have a -yasim.xml which doesn't pass yasim(-test) but which fgfs accepts... ?:-P So what is the difference? Number of iterations? I know of one difference: Ground intersection tests. The yasim-test uses the standard ellipsoids sea level as ground as it has no scenery. Don't know what else. Greetings Mathias -- Mathias Fröhlich, email: [EMAIL PROTECTED] ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
