<?xml version="1.0" encoding="UTF-8" ?>
<!-- fichier d'exemple pour if-then-else-en-XSLT.xsl -->
<gpx>
  <trk>
    <trkseg>
      <trkpt lat="49.2090072" lon="0.2504621">
        <ele>136.16</ele>
        <time>2023-08-10T18:24:59.000Z</time>
        <!-- ici il n'y a pas d'élément speed -->
      </trkpt>
      <trkpt lat="49.2089417" lon="0.2507757">
        <ele>139.86</ele>
        <time>2023-08-10T18:25:10.000Z</time>
        <speed>123</speed>
      </trkpt>
      <trkpt lat="49.2088944" lon="0.2510662">
        <ele>141.65</ele>
        <time>2023-08-10T18:25:15.000Z</time>
        <speed>234</speed>
      </trkpt>
    </trkseg>
  </trk>
</gpx>
