fit-to-edn

Parsing .fit binary files (leveraging Garmin SDK through Clojure Java interop), retaining the original streaming capabilities of the Java API, exposing them through core.async channels.

All processing is defined as transducer application over channels

Usage

Clone the project, and run lein repl in the project root, the repl will start in the fit-to-edn.core namespace by default and you can start experimenting.

1. Finding maximal 1min power ever achieved in the directory containing .fit records:

fit-to-edn.core> (query-files
                  (list-fit-files "/Users/janherich/Documents/Training-data")
                  (comp q/power (q/max-average-interval 60))
                  q/max-aggregate
                  (f/format-query-result f/power))
566.567 watt

2. The same for speed, but now we also want to know the activity where it happened:

fit-to-edn.core> (query-files
                  (list-fit-files "/Users/janherich/Documents/Training-data")
                  (comp q/speed (q/max-average-interval 60))
                  q/max-aggregate
                  (f/format-query-result f/speed-kmh #(.getName %)))
{:query-result "60.806 km/h" :activity "160726090112.fit"}

3. Finding maximal normalized-power ever achieved, we want to know the activity as well:

fit-to-edn.core> (query-files
                  (list-fit-files "/Users/janherich/Documents/Training-data")
                  (comp q/power q/normalized-average)
                  q/max-aggregate
                  (f/format-query-result f/power #(.getName %)))
{:query-result "304.144 watt", :activity "160820193938.fit"}

4. Overall best average moving speed ever achieved

fit-to-edn.core> (query-files
                  (list-fit-files "/Users/janherich/Documents/Training-data")
                  (comp q/moving-speed q/average)
                  q/max-aggregate
                  (f/format-query-result f/speed-kmh))
39.077 km/h

License

Copyright © 2017 Jan Herich

Distributed under the Eclipse Public License either version 1.0 or (at your option) any later version.