I have a Garmin GPS that does handy things like waypoint averaging which is very useful in my situation where much of my data collection happens under heavy canopy in deep gullies which leads to inaccurate fixes. I often take several samples on different trips to get accurate positions.
The Garmin gpx files have a samples attribute in the extensions and I would like to be able to get this loaded into QGIS so I can have a script update the geometry if the sample number has changed.
here is a sample point with extension data
<wpt lat="-36.599535" lon="174.887440"> <ele>2499999890505881600000000.000000</ele><time>2017-04-27T00:54:16Z</time><name>TJ B2 1</name> <cmt>Track junction in B2</cmt> <sym>Flag, Blue</sym> <type>Track</type> <extensions><wptx1:WaypointExtension><wptx1:Samples>4</wptx1:Samples></wptx1:WaypointExtension></extensions> </wpt>
to load the file I am using the "add GPX layer" -- the old gps tool.
the GPS exposes the files as a USB file system so I am just reading them as files. I can preprocess the files to, say put the sample data into the 'cmt' field but I would rather have a solution in QGIS because I want others to use this.