[Xastir-dev] xastir as pvd

[Brian D Heaton]

Wendell,

	Take a look at aprsd.  You can feed it UDP data via a socket
interface.  Then connect Xastir to it as a normal Internet Server.  That
way if you restart Xastir you can use the history load from aprsd to
give you an initial dataset for display.

	That lash up will also permit you to hook several client machines to a
single server instance.  Along with the link posted a few days ago to
the NIMA digital versions on the aeronautical charts this might make a
very good combination.

			THX/BDH



On Wed, 2004-04-14 at 22:38, Wendell Turner wrote:
> Maybe I should go over my objectives.
> 
> I'm looking for a "radar display", sometimes called a Plan
> View Display, Plan Position Indicator, etc.  My company's
> radio (VHF/aviation band) will be receiving Automatic Dependent
> Surveillance Broadcast (ADSB, basically GPS position) messages
> from aircraft.  Our radio will decode the bits and output
> messages for each of the targets it receives.  That is, the 
> one radio that the computer is connected to will send out UDP
> messages for ownship and for targets (the format is not
> particular,
> NMEA will suffice, as I don't suppose xastir has any desire
> to input Asterix(!).  I think Garmin has invented some
> proprietary
> NMEA sentences with altitude and callsign.  That would be fine.)
> 
> gpsd is fine for what is designed for (multiplexing
> data from a serial port to multiple receivers), but that does
> not fit my scenario. I don't want a gpsd for each target, as
> they will come & go.  If xastir could just listen to one udp
> port, decode messages it receives over that port, and plot them
> (with heading), that would be great.
> 
> I've already written my own mapping program that does
> this, but it is extremely lame now that I've seen what xastir
> can do.
> 
> Will it be possible for me to include this functionality into
> xastir without perturbing the mainline function?  Maybe as a
> run-time command line option to enable it, or a ./configure
> option to compile it in?
> 
> Thanks,
> 
> Wendell
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