[Qgis-user] GPX data in QGIS.

[J. M]

Hi Garth,

Thanks a lot for the very complete answer! I'll give it a go as soon as I
resolve an unrelated Ubuntu problem. I hadn't realised that GPX data wasn't
automatically visible in Properties, and that fields had to be created.

Kind regards,
Jimi.

On Fri, Sep 11, 2020 at 4:26 AM Garth Fletcher <garth at jacqcad.com> wrote:

> On 10 Sep 2020 at 20:12, J. M <jimimckay at gmail.com> wrote:
> > I can successfully import .gpx files into QGIS, and they are visible and
> > can be clustered in new groups (waypoints, tracks and routes appear as
> > independent layers). The problem I'm having is that I can't seem to find
> > any way to access the data about the routes (distance, time, etc) which
> is
> > clearly visible in the app I used to create the tracks
>
> The GPX file contains a number of fields whose contents you can see /
> access in the layer's Attribute Table
>   right-click on layer and choose Open Attribute Table
>
> However, these are only the extra fields in the GPX records but
> NOT including the x,y coordinates (Long,Lat)
>
> To access the later, use the Field Calculator
>   select the layer
>   click on Open Field Calculator icon (Abaccus) in the menu bar
>      which is next to the Open Attribute Table icon in menu, or
>    in Processing > GDAL > Vector Table > Field Calculator
>
> create new fields, called Lat and Long, as decimal numbers
> and enter the expression $X or $Y (see Geometry > for details)
> When you click OK, the new fields will be appended and filled in
> with the right values.
>
> You can then access them in the layer's Attribute Table.
>
> With those 2 extra fields you essentially have access to everything
> that was recorded in the GPX file.
>
> You can also use Field Calculator to add more fields and populate
> them with calculation results.
>
> As an aside, Field Calculator cannot create new fields in the GPX
> file; instead it creates them as temporary virtual fields.
>
> A better approach is to first save the data in a shape file
>   right-click on layer, choose Export > Save selected features
> then open that file instead of the original GPX.
> Field Calculator will add new fields to that format.
>
> Cordially,
> --
> Garth Fletcher
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