Compute basic statistics for GPX routes

Computes the distance, duration, and elevation gain for GPX routes.

Statistics are created for each trkseg in a GPX file (most GPX files have a single trkseg). Elevation data must be supplied in the GPX data (no external elevation APIs are used in the calculcation). The final result will be in the same units as the source data (e.g. meters, feet).

Installing with NPM

npm i --save gpx-basic-stats

Example

// load dependencies 
const gpxBasicStats = require('gpx-basic-stats')
const fs = require('fs')

// open sample file
const sampleFile = fs.readFileSync('./sample_data/Sample_Joaquin_Miller.gpx', 'utf8')

// calculate elevation (in same units as source data)
const statistics = gpxBasicStats( sampleFile )

Returns an array of statistics calcuations, one for each trkseg in the GPX file. For example:

[
  {
    startTime: "2019-11-02T17:49:50Z",
    endTime: "2019-11-02T19:15:26Z",
    distance: 2.83252139802459,
    duration: 5136000,
    elevationGain: 172.90000000000026,
    successful: 1,
    message: "Statistics calculated successfully.",
  }
]

Develop / Test

nvm use
npm install
npm test

Publishing to Internal @gritto NPM Registry

This build is published to the @gritto NPM Registry at dev.gritto.net. Ensure your ~/.npmrc file contains configuration for this namespace:

; @gritto NPM registry publish (per project)
//dev-npm-publish.gritto.net/api/v4/projects/64/packages/npm/:_authToken=<gitlab-gritto-group-deploy-token>

This configuration will overlay the publishConfig specified in the package.json file with the proper auth token.

What's Next

It would be great to include a "Moving Time" calculation similar to what Strava does. Also better error handling for GPX data that contains some data elements but not others.