> Can anyone suggest a way of accessing the methods:
> GetCoefficientValues(...) and
> GetCoefficientStrings(...)
> from a --native socket?
>
> I have a piece of code within flightgear which uses 'globals' and
> 'cur_fdm_state' via a socket similar to the "--native" socket
> provided with flightgear.
> I'd need to access internal JSBSim data but am at a loss how to
> do it from that socket.
>
> any suggestions?
You can access JSBSim aero data via properties if you know the property names.
Problem is,
the aero properties are sort of internal, and there's not a simple way (that I
know of) to
get all aero properties. So, I see you want to try (from FlightGear) to get the
strings
via the FGAerodynamics calls. To do that, you'd need to know the FGFDMExec
pointer in the
interface (FGJSBSim). The value you need is a private attribute, "fdmex". You
could add a
getter for that, GetExec(), perhaps. Then you could use that:
my_string = GetExec()->GetAerodynamics()->GetCoefficientStrings(delimeter);
I haven't tried this, but I think this should work. Is this what you are
looking for?
On the other hand, JSBSim does have a socket output capability, too. Using the
new code
(almost ready for commit to FlightGear CVS) you could do the following and get
all aero
properties:
<output name="localhost" type="SOCKET" port="1139" rate="10">
<coefficients> ON </coefficients>
</output>
The above would go in your aircraft config file at the bottom.
I'll be glad to clarify this if you need more info.
Jon
--
Project Coordinator
JSBSim Flight Dynamics Model
http://www.jsbsim.org
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