Taken from README.yasim: The origin can be placed anywhere, so long as you are consistent. I use the nose of the aircraft.
According to this note all aircraft starting off the runway are designed properly :) However we should decide where to put the reference point of the FDM, or recalculate the startup position (maybe by adding the aircraft length as an offset for the startup position). The good news for changing the coordinate system is that only the aircraft-yasim.xml file is affected, the model file measurements are taken from the .ac file, and placed via offset (once). Any other suggestions? Fly on, Markus LeeE wrote: > I guess we should just move the vrp from the nose to the tail of the > aircraft. It doesn't matter where the vrp actually is, as long as > it aligns with the FDM reference point. It's a pity that this > didn't occur to anyone when we were discussing the vrp issue, but > then no one's perfect. > > Adjusting the vrp is really quite trivial to do but can be very time > consuming if there are lots of animations to change - the AN-225 > model file is 4000+ lines and the SU-37 model file has 3800+ > lines :( > > LeeE > > On Tuesday 29 April 2008 10:46, Markus Zojer wrote: > >> Hi all! >> >> This issue still exists. The YASim FDM places the datum of the >> aircraft at the end of the runway as startup position, which >> means that all aircraft with datum=nose start behind the runway. >> Maybe we should use the CG of the aircraft as reference point or >> calculate some offset to the existing solution, as some airports >> are unusable. >> >> Thanks, >> Markus >> >> Bohnert Paul wrote: >> >>> Hi All, >>> >>> I'm not sure when this became an issue. I am running CVS form >>> this week. I noticed it when trying out the recently improved >>> B-1. >>> >>> Aircraft start up at the very end of the runway. Depending on >>> datum point of the aircraft some aircraft are positioned beyond >>> the end of the runway. >>> >>> At KSFO 28R, no problem, it has an apron. 28L does not. The >>> tail of the B-1 ends up in the water when stated on 28L. >>> >>> See the following screen capture. >>> >>> http://pics.ww.com/v/coulee182/fgfs-screen-008.ppm.html?g2_GALL >>> ERYSID=0f38489b61c67a0dabbf9c34a8f124f5 >>> >>> Best Regards, >>> Paul B >>> >>> --------------------------------------------------------------- >>> --------- Be a better friend, newshound, and know-it-all with >>> Yahoo! Mobile. Try it now. >>> <http://us.rd.yahoo.com/evt=51733/*http://mobile.yahoo.com/;_yl >>> t=Ahu06i62sR8HDtDypao8Wcj9tAcJ%20> >>> >>> --------------------------------------------------------------- >>> --------- >>> >>> --------------------------------------------------------------- >>> ---------- This SF.net email is sponsored by: Microsoft >>> Defy all challenges. Microsoft(R) Visual Studio 2008. >>> http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ >>> --------------------------------------------------------------- >>> --------- >>> >>> _______________________________________________ >>> Flightgear-devel mailing list >>> Flightgear-devel@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/flightgear-devel >>> >> ----------------------------------------------------------------- >> -------- This SF.net email is sponsored by the 2008 JavaOne(SM) >> Conference Don't miss this year's exciting event. There's still >> time to save $100. Use priority code J8TL2D2. >> http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.su >> n.com/javaone _______________________________________________ >> Flightgear-devel mailing list >> Flightgear-devel@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/flightgear-devel >> > > ------------------------------------------------------------------------- > This SF.net email is sponsored by the 2008 JavaOne(SM) Conference > Don't miss this year's exciting event. There's still time to save $100. > Use priority code J8TL2D2. > http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone > _______________________________________________ > Flightgear-devel mailing list > Flightgear-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/flightgear-devel > > ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
