[Xastir] APRS with non APRS equiped stations ?

Andrew Rich vk4tec at tech-software.net
Thu Dec 16 03:35:58 EST 2004


What would be really cool is if you could place points, on an XASTIR
map, and a "packet builder" window would create posit reports and then
you could send them.

I know we have objects, but it is SO SLOW to add them.




On Thu, 2004-12-16 at 14:30, Curt Mills wrote:
> On Wed, 15 Dec 2004, Wes Johnston wrote:
> 
> > Just thinking aloud.... if you were to have a text file that contained one line
> > per 100 feet of $GPGGA data (or other lat/lon data), then your tracking program
> > would would simply have to lookup the correct line inthe text file.  It is
> > entirely possible to set a GPS to record points based on distance.  All the
> > program needs to do (note how I say that as if I could actually write it!!) is
> > calc distance traveled based on time and then divide by 100 feet, fetch that
> > line from the file and display the object at that point.  Easy eh?
> >
> > Heck that would even work for laps around the same course.... just drive the
> > course with your GPS ahead of time and transfer the bread crumb trail points to
> > the text file.
> >
> > Something I do know how to write would be a program that would take arbitrary
> > points from a GPS $GPxxx file, interpolate between the points and output the
> > lat/lon of each 100 foot marker.  Then the recorded data density wouldn't
> > matter... record at any time or distance interval and my program (which has not
> > been written) would output a text file with markers every XX feet.
> 
> Let me see if I can throw this thread way off track:  Why couldn't
> you drive the course ahead-of-time with a GPS, recording the track.
> Then plug the GPS into Xastir, put the GPS into simulator mode and
> track-back mode (Garmin), and have the GPS "drive" around the course
> at whatever speed you want?
> 
> Is that kinda what you're after?  I've used my Garmin GPS-II+ quite
> a bit in that mode to test various Xastir/GPS features.  You can set
> your speed and change it at any time.  The most difficult part might
> be jumping ahead/behind to a new spot if you get off from the lead
> runner's position too much.




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