[Qgis-user] QGIS WFS 3D vector layer treated as 2D

[Mike Bundock]

Hi
a 3D vector WFS layer with geometry type MultiLineStringZ, published by
GeoServer is seen as 2D in QGIS but is published correctly as 3D.

QGIS Version 3.40.4-Bratislava
QGIS reports the geometry type for geometry field geom3d as Geometry Line
(MultiLineString)
Identify Results shows no Z values for the geometry:
[image: image.png]

*The source data* is in PostGIS and is 3D - an example is:
[image: image.png]
*WFS queries to the data source show the geometry is 3D* in the geoserver
WFS response:

















*<?xml version="1.0" encoding="UTF-8"?><wfs:FeatureCollection
xmlns:xs="http://www.w3.org/2001/XMLSchema
<http://www.w3.org/2001/XMLSchema>"
xmlns:wfs="http://www.opengis.net/wfs/2.0 <http://www.opengis.net/wfs/2.0>"
xmlns:testns="https://augview.net/testns <https://augview.net/testns>"
xmlns:gml="http://www.opengis.net/gml/3.2 <http://www.opengis.net/gml/3.2>"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance
<http://www.w3.org/2001/XMLSchema-instance>" numberMatched="1"
numberReturned="1" timeStamp="2025-07-31T08:25:23.092Z"
xsi:schemaLocation="http://www.opengis.net/wfs/2.0
<http://www.opengis.net/wfs/2.0>
https://registration.augview.net/geoserver/schemas/wfs/2.0/wfs.xsd
<https://registration.augview.net/geoserver/schemas/wfs/2.0/wfs.xsd>
https://augview.net/testns <https://augview.net/testns>
https://registration.augview.net/geoserver/testns/wfs?service=WFS&version=2.0.0&request=DescribeFeatureType&typeName=testns%3AWater_Pipe_Local
<https://registration.augview.net/geoserver/testns/wfs?service=WFS&version=2.0.0&request=DescribeFeatureType&typeName=testns%3AWater_Pipe_Local>
http://www.opengis.net/gml/3.2 <http://www.opengis.net/gml/3.2>
https://registration.augview.net/geoserver/schemas/gml/3.2.1/gml.xsd
<https://registration.augview.net/geoserver/schemas/gml/3.2.1/gml.xsd>">
<wfs:member>        <testns:Water_Pipe_Local
gml:id="Water_Pipe_Local.726022">            <testns:id>726022</testns:id>
          <testns:subtype>1</testns:subtype>            <testns:geom3d>
            <gml:MultiCurve srsName="urn:ogc:def:crs:EPSG::2193"
srsDimension="3" gml:id="Water_Pipe_Local.726022.geom3d">
  <gml:curveMember>                        <gml:LineString
gml:id="Water_Pipe_Local.726022.geom3d.1">
<gml:posList>5936450.85824186 1754007.66665035 100.6 5936452.36323351
1754005.52882205 101.4 5936455.4422984 1754005.56829724
101.7</gml:posList>                        </gml:LineString>
    </gml:curveMember>                </gml:MultiCurve>
</testns:geom3d>        </testns:Water_Pipe_Local>
</wfs:member></wfs:FeatureCollection>*

Is there something I am not doing correctly when connecting to the data via
WFS?

regards

Mike

*Mike Bundock*  |  CEO

Augview |  P O Box 125046, St Heliers, Auckland 1740, New Zealand

p: +64 9 575 5298 | m: +64 27 575 5298 | e: mailto:mike.bundock at augview.net
<mike.bundock at augview.net>| w: www.augview.net



Winner of Innovation & Commercialisation and Supreme Awards at 2014 NZ
Spatial Excellence Awards

Winner of Innovation & Commercialisation Award at 2014 Asia Pacific Spatial
Excellence Awards
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