gpxprocessing

Process GPX files

preprocessGPXtracks

A script that takes a gpx file, saving a new one with a standard suffix '_pp' (that can be changed with the --suffix option) after performing the following adjustments to it:

1. Each segment in the original file becomes a track in the new file i.e. tracks and tracksegments become de facto the same thing.

2. Each new track has the name of the timestamp of the first trackpoint.

3. Tracksegments/Tracks with less than the default number of 3 trackpoints are deleted from the processed file. This can be changed with the --minpoints option.

4. Empty track segments in the original file are deleted

5. Duplicate segments (based on the first timestamp occuring more than once) are deleted.

6. Track segments are sorted by time.

7. Trackpoints with a missing 'ele' (elevation) tag get added with a value of 0.

8. The --crop option drops the first and last point from every trackseg (this improves cleaning as these points are often spurious).

There is one argument: the path to the gpx file to process

Options:

• --suffix : change the file suffix
• --destination : specify a destination folder for the processed file
• --crop: turn on cropping of first and last trackpoints
• --minpoints : set the maximum number of points a track must have
• --quiet: don't print any information to STDOUT

See --help for details

I call it preprocesssing because I have several processes to go through before the file is accepted into our spatialite reference database. So this is a preliminary step before running [gpx2spatialite] (https://github.com/ptrv/gpx2spatialite)