Bug report #16484
Rendering issue using @geometry_point_num for styling Z values of vertices
|Affected QGIS version:||master||Regression?:||No|
|Operating System:||ALL||Easy fix?:||No|
|Pull Request or Patch supplied:||No||Resolution:||fixed/implemented|
|Crashes QGIS or corrupts data:||No||Copied to github as #:||24392|
I attempt to render Z values on 3D lines and polygons following my work here http://osgeo-org.1560.x6.nabble.com/Z-or-M-styling-in-QGIS-td5301770.html#a5301817, I found a rendering issue.
A video here https://www.youtube.com/edit?video_id=NdoyysCzEUs shows the issue.
I narrowed down the expression that seem to be triggering the error. It's on a marker line renderer, using a geometry generator to materialize the Z value as a vertical line with length in map units.
In my guess @geometry_point_num seems to be affected by current map extent.
qgs and gpkg files to reproduce are joined to the ticket.