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Gps Filtering





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Gps Filtering

Filtering

Doesn't seem to be a reliable way to filter high velocity points.

Take successive derivatives of all points and filter on that?

  • Comment out the bogus points in the gpx
  • Use gpxplot.py to check for velocity peaks quickly

Segmenting

Splits tracks at long breaks (e.g. lunch).

Split after 30mins:

$ gpsbabel -i gpx -f in.gpx -x track,pack,split=30m -o gpx -F out.gpx

Waypoints

name
short descriptive name
cmt
original GPS name
desc
"Day x: Description"
sym
Garmin waypoint symbols

Symbols

Garmin GPS III+ Garmin GPS III+ icons

Flag
miscellaneous
Drinking Water
Water stops, springs, etc
Swimming Area
Lakes
Residence
Overnight
Campground
Overnight
Picnic Area
Lunch stops
Crossing
Railway crossings

Rendering

  • GpsVisualizer?
  • Google Maps
    • Paste the gpx URL in the google maps search box

Links

Recent Changes (All) | Edit SideBar Page last modified on 19 March 2013, at 07:37 PM UTC Edit Page | Page History
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