FlightGear KML protocol

kml.xml

<?xml version="1.0"?>

<!-- Export to KML -->

<PropertyList>

 <generic>

  <output>
   <line_separator>newline</line_separator>
   <var_separator> </var_separator>

   <preamble><![CDATA[<?xml version="1.0" encoding="UTF-8"?>
<kml xmlns="http://www.opengis.net/kml/2.2" xmlns:gx="http://www.google.com/kml/ext/2.2">
  <Document>
    <name>2015-03-08T15:15:57Z</name>
    <Placemark>
    <gx:Track>
      <extrude>1</extrude>
      <altitudeMode>absolute</altitudeMode>
]]></preamble>
  <postamble><![CDATA[      </gx:Track>
    </Placemark>
  </Document>
</kml>]]></postamble>

   <chunk>
    <name>time</name>
    <format>        &lt;when&gt;%s&lt;/when&gt;</format>
    <type>string</type>
    <node>/sim/time/gmt</node>
   </chunk>

   <chunk>
    <name>lon</name>
    <format>\n        &lt;gx:coord&gt;%f</format>
    <type>float</type>
    <node>/position/longitude-deg</node>
   </chunk>

   <chunk>
    <name>lat</name>
    <format>%f</format>
    <type>float</type>
    <node>/position/latitude-deg</node>
   </chunk>

   <chunk>
    <name>altitude</name>
    <factor>0.3048</factor>
    <format>%f&lt;/gx:coord&gt;</format>
    <type>float</type>
    <node>/position/altitude-ft</node>
   </chunk>
   
  </output>

 </generic>

</PropertyList>