Hi! Joacim Persson wrote: > I noticed that the versions of apt.dat, nav.dat etc we have in CVS are > somewhat > outdated (~12 months old). Time for an update perhaps? > > I understand we are using the 810 format for apt.dat -- are there work in > progress for switching to version 850? (Not a trivial task: v850 includes > improved drawing functions like Bezier curves.)
AFAIK no data is yet publically available with apt version 850 (though the new X-Plane version seems to ship some airports with the new format, according to the APT 850 documentation). TaxiDraw is currently being renovated to allow migration to v850 (editing only), but we haven't even started the implementation yet. I hope that the renovation is done somewhen in February so that we can start with new features, but I can't guarantee that. Probably the trickiest part for a new genapts will be the marking stuff. Embedding that into the terrain without polygon offset, decals or similar will probably diminish the framerate heavily. The actual bezier polygons are probably not as tricky, as the current genapts essentially transforms the rectangles to single polygons and clips them to a big polygon. For implementing v850 one will probably have to approximate the beziers with polygons. There are methods out there which can be used to minimize the error (e.g. http://www.antigrain.com/research/adaptive_bezier/index.html) I have a set of different FlightGear-related projects I'd like to get done before end of May to have them presentable at LinuxTag 2007. This includes a v850-capable version of TaxiDraw, but there will be no time for implementing v850 in genapts. Volunteer, anyone? Cheers, Ralf ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
