Jim Wilson writes: > > David Megginson said: > > > Roy Vegard Ovesen wrote: > > > > > The GPS instrument does this in the same way as you suggest (as do most > > > real gps devices), take a look at the gps.cxx source file to see the > > > details. I believe the actual formula can be found someplace in SimGear. > > > But if you are just looking for the true flight path the beforementioned > > > GPS instrument provides this. Take a look at /instruments/gps/... in the > > > propertytree. > > > > Oh yeah, I'd forgotten that I'd written that module. > > > > Any objection to my putting that on the bus in generic-electrical.xml?
I hope that you take into consideration that that is a *very* expensive function to call ! You might want to do a test to see how the its result varies from the solutions that the FDM folks offered that are a direct assignment. Even if you don't use the FDM solution I would at least monitor it and only do the geodetic solution when there was 'enough' change in the FDM method to warrant computing a new value. Probably best to do a running average of the FDM value too so as to 'smooth' it a little Cheers Norman _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
