GPX to geoJson

[Svashta]

Not really an issue, more like a question/help/feature request maybe.

I would like to convert a GPX file to geoJson format and then display it using MapBox.

Maybe it's just my limited knowledge, but I don't find any proper way of doing it, not with this gem or any other similar solutions.

Furthermore, would it be possible to extract, calculate elevation gains and drops from the data in GPX.

Generally, I am using Strava gpx from either activity or routes, and I would like to draw it on a MapBox enabled map plus have some additional information with it.

Sorry for maybe very simple question.
Thx

[niborg]

This gem does allow you to convert GPX to Geojson. Did you look at the README?

[niborg]

Woops got confused, converts GeoJSON to GPX.

If you create a GPX file using this library, you should be able to construct a GeoJSON object using the .tracks and/or .routes methods. Each of those methods will return objects that respond to .lat and .lon. E.g.

coords = gpx.tracks.each_with_object([]) do |point, coll|
  coll << [point.lon, point.lat]
end
geojson_feature = {
  type: 'LineString',
  geometry: {
    coordinates: coords
   }
}