This seems to work for me : var FPangle = math.asin( VS/math.abs(TAS) ) * 90;
On 28/01/2010 04:28, syd adams wrote: > Good point , I'll try the abs . That formula continuously calculates the > flight path angle from vertical and forward speed fpm ... I saw the error > but hadnt figured it out yet .... didnt even think about a negative velocity > ... > Thanks for that tip :) > > > I experience a nasal error when using the pushback or thrust reverse to > > >> get off the dock : >> >> Nasal runtime error: floating point error in math.sqrt() >> at >> >> /home/d2r2/archives/games/flightgear/CVS/Flightgear-CVS/data/Nasal/math.nas, >> line 12 >> called from: >> >> /home/d2r2/archives/games/flightgear/CVS/Flightgear-CVS/data/Aircraft/777-200/Nasal/AFDS.nas, >> line 121 >> called from: >> >> /home/d2r2/archives/games/flightgear/CVS/Flightgear-CVS/data/Aircraft/777-200/Nasal/AFDS.nas, >> line 215 >> >> line 121 is : var FPangle = math.asin(VS/TAS) * 90; >> >> so I presume some value gets negative or null when making the plane go >> backwards, the math is not happy, the script hangs, resulting in the AP >> panel becoming unusable. >> >> I'm not sure what VS and TAS are, I'd be tempted to take a abs() before >> taking asin, but I'm just guessing without knowing. >> ------------------------------------------------------------------------------ The Planet: dedicated and managed hosting, cloud storage, colocation Stay online with enterprise data centers and the best network in the business Choose flexible plans and management services without long-term contracts Personal 24x7 support from experience hosting pros just a phone call away. http://p.sf.net/sfu/theplanet-com _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
