[Qgis-user] Lat/long for polygon points

[Árni Geirsson]

Hi Tony
If I understand correctly, you want to make the coordinates of the vertices
of the polygon visible. I can think of two ways to do this:

A: Use "Extract nodes" under "Geometry tools" to make a point layer out of
the vertices and then label them using the expression builder, for
example:  $x  || ', '  ||   $y

B: If you use PostGIS, you can use a view to expose the vertices (with
ST_DumpPoints) and then label these points in the same way.

Arni


Árni Geirsson
*Alta ehf* // +354 582 5000 // +354 897 9549

On 6 December 2017 at 23:57, Qld Drones <qlddrones at gmail.com> wrote:

> Hi all
>
> Is there a way to view the reference latitude and longitude of polygon
> points in QGIS where they have been imported from, say, a geo-referenced
> KMZ or GDB cadastral data file?
>
> I know I can do it by pointing my mouse at the corners but I'm looking for
> some way to view the actual underlying data points forming the polygon or
> lines which should be the most accurate coordinates.
>
> Is there a tutorial somewhere that covers this?
>
> Regards, Tony
>
> [image: Queensland Drones website] <http://www.qlddrones.com.au/>
>
> *CASA ReOC No 6466. Precision aerial mapping, photography and video across
> South East Queensland and Northern NSW.*
>
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