[Qgis-user] Lat Lon Tools question

[chris hermansen]

Eric and list,

On Sat, Feb 6, 2021, 10:18 Eric Sorensen <e.b.s at me.com> wrote:

> Hi,
>
> I have waypoints from a Garmin GPS that I import from a gpx file into a
> vector layer.
>
> In the gpx file, they are of the form;
>
>   <wpt lat="35.908381976187229" lon="-106.282681999728084">
>     <ele>2262.188964999999826</ele>
>     <time>2021-02-05T18:03:05Z</time>
>     <name>Park</name>
>     <sym>Flag, Blue</sym>
>     <type>user</type>
>     <extensions>
>       <gpxx:WaypointExtension>
>         <gpxx:DisplayMode>SymbolAndName</gpxx:DisplayMode>
>       </gpxx:WaypointExtension>
>       <wptx1:WaypointExtension>
>         <wptx1:DisplayMode>SymbolAndName</wptx1:DisplayMode>
>       </wptx1:WaypointExtension>
>       <ctx:CreationTimeExtension>
>         <ctx:CreationTime>2021-02-05T18:03:05Z</ctx:CreationTime>
>       </ctx:CreationTimeExtension>
>     </extensions>
>   </wpt>
>
>
> They appear in the correct location in my project.  Now, I am trying to
> display a label at each point using rule-based labeling with the following
> expression;
>
> concat(name, ', ', utm($Y, $X))
>
> The labels appear as expected, except one small problem.  I know the
> points are in UTM zone 13S, yet the label shows zone 13N.
>

Your lat long 35,-106 are far west in the northern hemisphere. Therefore
the UTM zone is 13N not 13S.

This is somewhere near Memphis Tennessee if I am not wrong.


If you're expecting -35,-106 that's somewhere out in the Pacific far west
of Santiago Chile


> Any thoughts on what I am doing wrong.
>

Maybe you want -35,+106?

>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/qgis-user/attachments/20210206/4571e5f0/attachment.html>