Pythagorean distance is confusing and not useful about gpx

[andrewhao]

Hi @moveson - thanks for your feedback. I believe you're correct - pythagorean distance is not useful for nearly all use cases (unless someone here chimes in otherwise). I'll take that into consideration that we may want to delete the method, or at least update the documentation.

[moveson]

That sounds good. To be clear, though, the method in its current state is not useful in any case. I spent a bit of time figuring out that it was broken, and then I spent quite a bit more time figuring out why it was broken. I'd like to avoid others spending that unnecessary time.

I'm happy to make the changes and submit a PR if that would be helpful.

[andrewhao]

If you could make a PR, that would be great. Thanks!

[moveson]

If you would authorize me to push to a new branch, I'll make a PR.

[andrewhao]

Hey @moveson - typically we accept PRs from forks - please feel free to fork this repo, make a change on a branch and open a PR from there. Thank you!