great, if you have a "GPX file of single-point trkseg elements" i can start with as an example that would be extremely helpful. email it to me at tlove@dfg.ca.gov if i can get an example i will probably just hack out a solution that covers my stuff, so i doubt it will be globally useful so to speak.
<?xml version="1.0"?> <gpx version="1.0" xmlns="http://www.topografix.com/GPX/1/0"> <trk> <trkseg> <trkpt lat="XX.XXXX" lon="YY.YYYY"/> </trkseg> <trkseg> <trkpt lat="XX.XXXX" lon="YY.YYYY"/> </trkseg> <trkseg> <trkpt lat="XX.XXXX" lon="YY.YYYY"/> </trkseg> </trk> </gpx>