How to edit GPX files in a text editor
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Just open it up in a text editor and delete the entire trackpoint entry from the xml.
Here's one of my trackpoints that I don't need:
<trkpt lat="-37.772000" lon="145.024740"> <ele>111.781</ele> </trkpt>
Here are your rough steps:
- Open the track log
$ java -jar josm-latest.jar 20070915.gpx
- put your mouse over the cloud of points to be deleted, and write down the coordinates
- Open the track log in your favourite text editor (or emacs, or Microsoft WordPad, or whatever)
$ vi 20070915.gpx
- Search for the co-ordinates you wrote down, leaving off the last part for precision.
- Delete all points either side, by looking at the time. You should be able to work out when you stopped moving and roughly when you started again.
- If you cross over a
<trkseg>take out the end of the first
</trkseg>and the beginning of the next, so you'd just end up with one
- After editing, you can run the resulting gpx file through GPSBabel going from gpx to gpx, and it will rebuild a correct bounding tag, which is nice if you've chopped a really long file into smaller bits.
- Edit GPS tracks – Editing GPX tracks and list of usable software