compare_gpx is a python3 script that uses the Needleman-Wunsch algorithm to align GPS tracks in GPX files so they can be compared.

Running the following commands should be enough to setup a virtual environment to run the script:

python3 -m venv --without-pip venv
source venv/bin/activate
curl https://bootstrap.pypa.io/get-pip.py | python
deactivate
source venv/bin/activate
pip install -r requirements

More information about the implementation can be found on my blog in the post How to compare GPS tracks.

The image below is an example of a comparison between thun_1_even.gpx and thun_2_even.gpx with the distance cutoff set to 10. The blue points indicate matches, whereas the red and orange indicate differences.

This is free and unencumbered software released into the public domain. See UNLICENSE for more information.