Re: [Gpsbabel-misc] Filtering waypoints from inaccurate GPS

[<gps...@he...>]

Den 29.03.10 03.57, skrev Robert Lipe:
> I don't know anything about the iGotu.  If it stores some kind of DOP
> information in whatever format you're using and the GPS is smart
> enough to know when the points probably shouldn't be truested, you can
> use the 'discard' filter to toss the zingers.  See: 
> http://www.gpsbabel.org/htmldoc-development/filter_discard.html

Thanks, I've used the discard filter to remove waypoints with a low
satellite count:

gpsbabel -t -i gpx -f in.gpx -x discard,sat=7 -o gpx -F out.gpx

The result is a bit better, but I still see waypoints where the cat is
flying or digging far under ground.   Thus I'd like to discard waypoints
that are above or below a certain elevation, but I can't find any
filters for it.  Are there any?

Best regards,
Henrik