[Qgis-user] Identify tool and closest vertices (z-values)

[Andreas Neumann]

Hi Karl-Magnus,

Thank you for your confirmation.

It must be something weird about 3D detection from QGIS for Postgis 
layers. I tested with other 3D layers and they work fine, but the layer 
that fails to work with Z-Values is from a much older Postgis-DB.

Maybe it would work fine if we transfer the data to a more modern 
Postgis-DB ...

QGIS display the Metadata as Polygon (PolygonZ) though ...

Strange ...

Andreas

On 2022-05-24 11:21, Karl Magnus Jönsson wrote:

> Hi!
> 
> It seems to work for me in 3.22.5 with Postgis PolygonZ. Can't remember 
> that I've done any custom settings for that.
> 
> Karl-Magnus Jönsson
> 
> Från: Qgis-user <qgis-user-bounces at lists.osgeo.org> För Andreas Neumann 
> via Qgis-user
> Skickat: den 24 maj 2022 10:53
> Till: QGIS User List <Qgis-user at lists.osgeo.org>
> Ämne: [Qgis-user] Identify tool and closest vertices (z-values)
> 
> Hi,
> 
> We have a a Postgis PolygonZ data set an want to query the third 
> dimension of the closest vertex. According to my users, this used to 
> work fine in older QGIS versions, but now we can only see the x/y 
> values and not z-values anymore.
> 
> I just tested it on QGIS 3.22 (LTR) and can conform that the z-values 
> are not displayed in the derived data of the identify tool.
> 
> Is there any hidden setting that helps us to display the z-values again 
> - or a connection parameter that forces QGIS to treat it correctly as a 
> 3d data set?
> 
> Thank you for any hints,
> 
> Andreas
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