On Thursday 21 October 2004 11:31, Yu QingRou wrote: > Thanks Arnt. Responses inline. > > Other gents, have time to look into my questions in my > previous email and help me out? > > One question, if I have already know one point's (lat, lon, > alt), how can I calculate a right position to draw it? I know > it needs to be updated as the scenery center is being > changed...I did some investigation but I have to say I messed > up something. Can anyone give me a clarification on what > procedures I should call...is the way I showed in my previous > email correct? > > > > Hi, > > > > > > I am trying to show the trajectory the aircraft just flied > > > when start replaying. Is there anybody who had ever done > > > that? > > > >..like Klog? ' apt-get install klog ', if you use debian > > sid, otherwise see http://kflog.org . > > > > > Or could you give me some ideas about the solution? > > > >..preliminary idea: Ethy Brito asked for help investigating a > > helicopter crash using FG, if you _are_ doing what I think > > you are doing, chk out > > http://baron.flightgear.org/pipermail/flightgear-users/2004- > >October/009104.html > > > >and help us qualify FlightGear as an air crash investigation > > tool, your trajectory code ideas are spot on what we need, > > if they are anywhere near what I think they are. :-) > > > >..updated protocol handler for FG: > >http://www.a1.nl/~ehofman/fgfs/downloads/j3cub > > [QingRou] I saw Erik's email. Sounds like in the coming > release we can have such functionality: save your flight to a > file with the data need to be stored in FGReplayData > (Sim_time, FDM and Ctrls). Then read this file back and replay > the flight. This is useful especially for the instructors to > show the students how a successful/bad flight is. Also it can > be used to save students' flight and give scores. > > >..ca 2 hours Dolphin SA365 real life flight data for FG > > calibration: > > http://www.inexo.com.br/SA365/SA365-flight007-aero-data.tar. > >gz > > http://www.inexo.com.br/SA365/SA365-flight007-engine-data.ta > >r.gz > > > >..bonus extensions could be placing choppers or airplanes > > rather your lines or dots along the trajectory trail, > > [QingRou] Yes with my "point" (spot) solution, you can change > the loading 3D model to anything you want and then you can see > the model showed along the trajectory. I had ever done that to > show a rocket along the flight path! > > maybe showing red wireframe > > >orientations etc "according to the black box recordings", and > > green, blue, yellow etc wireframe orientations "according to > > the black box recordings filtered thru the yasim, JSBSim, > > UIUC etc flight dynamics models" to help understand the > > recordings and say, help identify instrument errors > > disturbing the black box recordings. > > [QingRou] Yeah...actually what I am doing is, read the record > data from Flight Data Recorder (black box), and refine the > data to some format, then input into the replay system of > FlightGear. All the flight recorded by the FDR can be > replayed. In a flight school, this can be used for the > instructors to review the flight with the student and give > some comments to his operation. > > >..Ethy? You're still around? > > > >-- > >..med vennlig hilsen = with Kind Regards from Arnt... ;-) > >...with a number of polar bear hunters in his ancestry... > > Scenarios always come in sets of three: > > best case, worst case, and just in case.
Sorry - a bit late on this one - but if AIballistic submodels are used without the --enable-ai-models parameter the submodels stay at their release point, giving a very good trajectory indicator:) Vivian - would it be tricky to implement this? While we were trying to figure out what I was doing wrong on the Canberra I actually did use this 'feature' to look at trajectories - I especially found it interesting to be able to study the course of the a/c on the glideslope and touch-down. If people thought such a feature might have wider uses it would be easy to make a simple generic marker object that could be used by all a/c. LeeE _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
