Sample GPX

A simple GPX+ file (with laps included) looks like:

<gpx xmlns="http://www.topografix.com/GPX/1/1" 
  xmlns:gpxdata="http://www.cluetrust.com/XML/GPXDATA/1/0" 
  creator="pytrainer http://sourceforge.net/projects/pytrainer" version="1.1">
  <metadata>
    <name>Run 2009-06-19</name>
    <link href="http://sourceforge.net/projects/pytrainer"/>
    <time>2009-06-19T10:13:04Z</time>
  </metadata>
  <trk>
    <trkseg>
      <trkpt lat="51.219983" lon="6.765224">
        <ele>52.048584</ele>
        <time>2009-06-19T10:13:04Z</time>
        <extensions>
          <gpxdata:hr>164</gpxdata:hr>
          <gpxdata:cadence>99</gpxdata:cadence> 
        </extensions>
      </trkpt>
      <trkpt lat="51.220137" lon="6.765098">
        <ele>52.529175</ele>
        <time>2009-06-19T10:13:09Z</time>
        <extensions>
          <gpxdata:hr>161</gpxdata:hr>
          <gpxdata:cadence>95</gpxdata:cadence> 
        </extensions>
      </trkpt>
      <trkpt lat="51.219983" lon="6.765224">
        <ele>52.048584</ele>
        <time>2009-06-19T10:13:15Z</time>
        <extensions>
          <gpxdata:hr>164</gpxdata:hr>
          <gpxdata:cadence>99</gpxdata:cadence> 
        </extensions>
      </trkpt>
      <trkpt lat="51.220137" lon="6.765098">
        <ele>52.529175</ele>
        <time>2009-06-19T10:13:19Z</time>
        <extensions>
          <gpxdata:hr>161</gpxdata:hr>
          <gpxdata:cadence>96</gpxdata:cadence> 
        </extensions>
      </trkpt>
    </trkseg>
  </trk>
  <extensions> 
    <gpxdata:lap>
      <gpxdata:index>1</gpxdata:index>
      <gpxdata:startPoint lat="51.219983" lon="6.765224"/>
      <gpxdata:endPoint lat="51.220137" lon="6.765098" />
      <gpxdata:startTime>2009-06-19T10:13:04Z</gpxdata:startTime>
      <gpxdata:elapsedTime>4.6700000</gpxdata:elapsedTime>
      <gpxdata:calories>1</gpxdata:calories>
      <gpxdata:distance>0.5881348</gpxdata:distance>
      <gpxdata:summary name="AverageHeartRateBpm" kind="avg">163</gpxdata:summary>
      <gpxdata:trigger kind="manual" />
      <gpxdata:intensity>active</gpxdata:intensity>
    </gpxdata:lap>
    <gpxdata:lap>
      <gpxdata:index>2</gpxdata:index>
      <gpxdata:startPoint lat="51.219983" lon="6.765224"/>
      <gpxdata:endPoint lat="51.220137" lon="6.765098" />
      <gpxdata:startTime>2009-06-19T10:13:15Z</gpxdata:startTime>
      <gpxdata:elapsedTime>4.6700000</gpxdata:elapsedTime>
      <gpxdata:calories>1</gpxdata:calories>
      <gpxdata:distance>0.5881348</gpxdata:distance>
      <gpxdata:summary name="AverageHeartRateBpm" kind="avg">163</gpxdata:summary>
      <gpxdata:trigger kind="manual" />
      <gpxdata:intensity>active</gpxdata:intensity>
    </gpxdata:lap>
  </extensions>
</gpx>