Thanks John for the reply.  I was hoping that there existed a simple
solution to this issue but I have no problem enjoying flightgear as is
on the linux platform.

Just a thought, is there an accessible (i.e., downloadable) and
pre-built combination of flightgear and opengc that would allow me to
establish the control channel executing on the windows xp platform?

Rick 

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:flightgear-devel-admin@;flightgear.org] On Behalf Of John
Wojnaroski
Sent: Tuesday, October 29, 2002 3:40 PM
To: [EMAIL PROTECTED]
Subject: Re: [Flightgear-devel] flightgear 0.8 under linux and --opengc
option


----- Original Message -----
From: Rick Marsico
To: [EMAIL PROTECTED]
Sent: Tuesday, October 29, 2002 9:34 AM
Subject: [Flightgear-devel] flightgear 0.8 under linux and --opengc
option


<When attempting to use -opengc. I see repeated data errors and errors
attempting to write to socket.  This is the only <network option that
I've
come across so far that does not want to cooperate.  Is anyone
successfully
using the linux-<based fgfs 0.8.0 with opengc?  If so, did you do
anything
special (related to opengc) at flightgear build time?
<
<Rick

Sigh... the fgfs and opengc versions are out-of-sync.  Changes to the
socket
code in May broke the interface and I've had to resort to a work around
using older Simgear socket code. Obviously, such a local solution is not
suitable for general consumption and things have only gotten worse.

If you are interested in only sending data from fgfs to the glass
displays
you should be able to set up a UDP channel. Probably also need to check
the
data structures(classes) across the interface. In flightgear take a look
at
opengc_data.hxx in ~/src/Network and in the opengc source look in
~/Source/DataSources for the file with the same name. Chances are these
are
not the same

If you want to setup a control channel from opengc to fgfs via TCP
things
are a little more messy since the new socket code forks and something is
amiss in binding the child to the port or whatever such that the data
packets are lost. One of these days I'll find the time to dig into the
problem. Again, using an earlier veresion of the SimGear socket code
(pre-May) is possible.

Sorry, the source is out of sync, but it gets a little frustrating to
set up
a working interface and have folks come by willy-nilly and break it.
After
about the fourth time, one just gives up.

If you still want to get a working version, I'll try to help, but it
will
most likely not be in sync with the stable or development version.

Regards
John W.


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