Support watts display

[aairey]

Hello,

It seems the gpxtpx:watts is the most standard field for storing the power output within GPX files.

Example:

  <trkseg>
   <trkpt lat="50.8497930" lon="4.5850920">
    <ele>24.8</ele>
    <time>2025-06-23T18:44:50Z</time>
    <extensions>
     <gpxtpx:TrackPointExtension>
      <gpxtpx:atemp>23</gpxtpx:atemp>
      <gpxtpx:watts>None</gpxtpx:watts>
      <gpxtpx:cad>87</gpxtpx:cad>
     </gpxtpx:TrackPointExtension>
    </extensions>
   </trkpt>

I have these stored in my GPX files but GpxPod does not display/graph the values - I can also not select it from the Extensions dropdown like I can do for cad and atemp values.

[julien-nc]

Sorry for the late response. This extension is not supported by the library used by GpxPod to parse GPX files (Sibyx/phpGPX).

Check this out: https://github.com/Sibyx/phpGPX/blob/71312742412f69d1276e5a62adedf25f20f59dd0/src/phpGPX/Models/Extensions/TrackPointExtension.php#L115-L122

This extension value is not in the data returned by phpGPX's parser.
If the watts extension was outside of the <gpxtpx:TrackPointExtension> node, it would be included as an "unsupported" one and GpxPod would show it in the UI.