Sounds like it'd be useful for debugging aircraft and autopilot configs too.
Best, Jim "Curtis L. Olson" <[EMAIL PROTECTED]> said: > Tony Peden writes: > > In my day job, my own experience has been that > > real-time plotting is useful when you know exactly > > what you are looking for and you only need to see a > > limited number of parameters. The rest of the time, > > recording the data and plotting after the fact works > > out to be better. > > > > That said, it *would* be a very cool thing to be able > > to do. > > Yes, this would be no substitute for data logging and post processing, > but if you know what you are looking for, I do think it could be > useful. > > The immediate thing that comes to my mind is this: > > As a side project I'm working on integrating a 'commercial' fdm with > FlightGear via a network interface. One of the things this code > supports is control loading. The hardware guys are chomping on the > bit wanting to know what range of values the software is going to kick > out. > > Something like a quick and dirty embedded graphing program would be > pretty nifty. > > "cout" probably works just as well, but it's not as pretty. :-) And > once you had the basic graphing mechanism in place, it would be > trivial to let the user specify which property(ies) to graph. > > Maybe we could even hook up the GUI prop-picker to specify which > values we want rather than forcing the user to type them all in. > > FWIW, I think it's important for the FDM guys to frequenty fly their > code in real time. In real time with visuals attached, various > incorrect effects and behaviors can really jump out at you ... stuff > that you'd never notice when looking through tabular data, or even a > graph. Sometimes the trend is correct, but the scale or the sign is > way off. > > I would think that being able to fly in real time, and see some > key graphical data output would be an immensly useful debugging tool. > > For instance, nosing over the c310 causes it to go into an infinite > acceleration cycle. Hmmm I wonder of that is drag related? Ok, pop > up a live graph of thrust, nose over, watch the graph with everything > else going on. Nope, drag looks good. I wonder if it's thrust > related. Oooo, look at that thrust go off the chart ... ok now let's > graph some individual propellor/engine parameters ... etc. etc. > > That's how my mind works anyway ... :-) > > Curt. > -- _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
