[Qgis-user] Z($geometry), CRS and transforms: buggy?

[Andrea Giudiceandrea]

> Greg Troxel gdt at lexort.com
> Mon Sep 2 06:24:36 PDT 2024

> I think that's unfortunate, or that the other way being missing is a bug.

I don't think so. AFAIK it is the intended behaviour. QGIS has usually a 
modular approach.
Having a geometry object, you can transform the coordinates of such 
geometry using the transform function [1]. I don't think there is the 
need of having XP, YP and PZ functions alongside X, Y and Z functions.
Anyway AFAIK the support for vertical datum handling in QGIS is being 
implemented [2] [3] and the actual implementation depends on the QGIS 
version used.

Regards.

Andrea


[1] 
https://docs.qgis.org/3.34/en/docs/user_manual/expressions/functions_list.html#transform
[2] https://github.com/qgis/QGIS-Enhancement-Proposals/issues/267
[3] 
https://github.com/qgis/QGIS/pulls?q=is%3Apr+author%3Anyalldawson+vertical