<?xml version="1.0" encoding="UTF-8"?>
-<gpx version="1.0" creator="libgpx" xsi:schemaLocation="http://www.topografix.com/GPX/1/0 http://www.topografix.com/GPX/1/0/gpx.xsd" xmlns="http://www.topografix.com/GPX/1/0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<gpx version="1.0" creator="libgpx" xsi:schemaLocation="http://www.topografix.com/GPX/1/0 http://www.topografix.com/GPX/1/0/gpx.xsd" xmlns="http://www.topografix.com/GPX/1/0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:custom="https://www.example.com/schema/custom">
<name>full-1.0</name>
<desc>This is a sample file containing all parts of the GPX 1.0 specification supported by libgpx.</desc>
<author>John Doe</author>
<time>2018-11-25T10:07:47Z</time>
<keywords>Example, GPX</keywords>
<bounds minlat="-1.234" minlon="-1.234" maxlat="1.234" maxlon="1.234"/>
+ <wpt lat="50.750130" lon="-1.072391">
+ <ele>10.3</ele>
+ <time>2018-11-25T10:07:47Z</time>
+ <magvar>12.3</magvar>
+ <geoidheight>10</geoidheight>
+ <name>Horse Sands Fort</name>
+ <cmt>Fort</cmt>
+ <desc>A fort in the Solent</desc>
+ <src>Guess</src>
+ <url>https://www.example.com/fort</url>
+ <urlname>More Information</urlname>
+ <sym>Flag, Blue</sym>
+ <type>Nautical</type>
+ <fix>3d</fix>
+ <sat>6</sat>
+ <hdop>1</hdop>
+ <vdop>2</vdop>
+ <pdop>3</pdop>
+ <ageofdgpsdata>86400</ageofdgpsdata>
+ <dgpsid>13</dgpsid>
+ <custom:checkedBy>Jane Doe</custom:checkedBy>
+ </wpt>
</gpx>