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<p>Hi Karl-Magnus,</p>
<p>Thank you for your confirmation.</p>
<p>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.</p>
<p>Maybe it would work fine if we transfer the data to a more modern Postgis-DB ...</p>
<p>QGIS display the Metadata as Polygon (PolygonZ) though ...</p>
<p>Strange ...</p>
<p>Andreas</p>
<p id="reply-intro">On 2022-05-24 11:21, Karl Magnus Jönsson wrote:</p>
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<p class="v1MsoNormal"><a name="T_Default_Reply"></a><span style="mso-fareast-language: EN-US;">Hi!</span></p>
<p class="v1MsoNormal"><span style="mso-bookmark: T_Default_Reply;"><span style="mso-fareast-language: EN-US;">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. </span></span></p>
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<p class="v1MsoNormal"><span style="mso-bookmark: T_Default_Reply;"><strong><span style="font-size: 10.0pt; font-family: 'Franklin Gothic Book',sans-serif; color: black;">Karl-Magnus Jönsson</span></strong></span><span style="mso-bookmark: T_Default_Reply;"><span style="font-size: 10.0pt; font-family: 'Franklin Gothic Book',sans-serif; color: black;"></span></span></p>
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<p class="v1MsoNormal"><strong>Från:</strong> Qgis-user <qgis-user-bounces@lists.osgeo.org> <strong> För </strong>Andreas Neumann via Qgis-user<br /><strong>Skickat:</strong> den 24 maj 2022 10:53<br /><strong>Till:</strong> QGIS User List <Qgis-user@lists.osgeo.org><br /><strong>Ämne:</strong> [Qgis-user] Identify tool and closest vertices (z-values)</p>
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<p><span style="font-size: 10.0pt; font-family: 'Verdana',sans-serif;">Hi,</span></p>
<p><span style="font-size: 10.0pt; font-family: 'Verdana',sans-serif;">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.</span></p>
<p><span style="font-size: 10.0pt; font-family: 'Verdana',sans-serif;">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.</span></p>
<p><span style="font-size: 10.0pt; font-family: 'Verdana',sans-serif;">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?</span></p>
<p><span style="font-size: 10.0pt; font-family: 'Verdana',sans-serif;">Thank you for any hints,</span></p>
<p><span style="font-size: 10.0pt; font-family: 'Verdana',sans-serif;">Andreas</span></p>
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