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GPXanalysis

Analysis of GPX tracks using IgorPro

GPXSimilarPaths

A workflow to find and compare similar running routes from a large database.

The inspiration is the Strava feature that allows runners to compare performance over the same course over time.

Starting point is a long gpx/xml output containing multiple tracks (tested on ~700 tracks). The file is processed using GPX2CSVwithTrackeR.R to give a csv called runDF.csv. This file is read by GPXSimilarPaths.ipf.

Igor parses all the tracks and compares them to find clusters of similar tracks. For each cluster, a comparison of pace is done.

GPX2Igor

Requires XMLUtiles XOP for Igor, available here.

These functions will load and parse a directory of gpx files. Igor will plot out all the tracks and also allow you to pick an interval to make a movie of tracks in that period. It will export a movie (*.mov with jpeg compression) and a sequence of TIFFs at 4X screen resolution (this is so you can assemble a *.gif version).

Now there are versions for looking at Running and Cycling. The running analysis is tested only on GPX tracks exported from rubitrack and recorded using a Garmin watch. Export was automated using Rubitrack Export.scpt. This is an applescript which runs from the Users Scripts folder and works with card view in rubiTrack 4 Pro. The cycling analysis is quite bespoke (sorry) and requires an external procedure to run properly.

CumulativeTime

Rubitrack can output a single GPX file with multiple tracks. This can be read into R and then the cumulative time per year calculated using IGOR. To read in the GPX file use GPX2CSV.R

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Analysis of GPX tracks using IgorPro

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