On Friday, 25 April 2025, 19:50:39 CEST Richard Greenwood via QGIS-User wrote:
> I don't have a TMS z/y/x data set to play with but I do have a vector
> tile {z}/{x}/{y}.pbf data set that's not in epsg:3857 which I had some
> limited success with when I set both the layer and the project coord system
> to that of the tile source. By "limited success" I mean that it was in the
> right place, however the zoom levels are not correct. The OpenLayers
> configurations that consume these tiles have custom min/max resolutions
> defined, not web mercator zoom levels. And I don't see how to accomplish
> that in QGIS.

Yes, your solution is the only one possible currently in QGIS. See also here:
> https://gis.stackexchange.com/questions/376374/displaying-vector-tiles-wmts-tms-in-qgis-3-14

QGIS is presuming that PBF vector tiles are always served in CRS EPSG:3857. 
Which is correct for, wild assumption, 99 % of vector tiles available. The 
Mapbox standard is also not mentioning a CRS anywhere:
> https://docs.mapbox.com/data/tilesets/guides/vector-tiles-standards/
> https://gis.stackexchange.com/a/334338/180846

If you can't live with above solution, you can try to convert the vector tiles 
into a different vector format as outlined here:
> https://gis.stackexchange.com/a/475399/180846

I haven't tried that yet, as the solution outlined by Richard Greenwood works 
for me.


Best regards
-- 
Tobias A Schula
Forestry Expert

geospat...@schula.org

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