[QGIS-Developer] Regression in LTR: multiple reports about projection/transformation issues

[Nyall Dawson]

On Wed, 26 Feb 2025 at 04:41, Andrea Giudiceandrea via QGIS-Developer
<qgis-developer at lists.osgeo.org> wrote:
>
> Hi all,
> I think it's important to bring to your attention that there are several
> reports regarding a regression occurring in QGIS LTR 3.40.4 about an
> issue in the rendering of layers when a CRS transformation is involved
> in some circumstances.
>
> In such cases the following warning is logged multiple times:
> WARNING    Could not reproject layer extent: Forward transform
> (EPSG:3857 to EPSG:3005) of bounding box failed: Coordinate to transform
> falls outside grid
>
> It looks like the issue didn't occur using QGIS <= 3.40.3, included QGIS
> LTR 3.34 (the users are now updating QGIS LTR from 3.34 to 3.40).
>
> Please see https://github.com/qgis/QGIS/issues/60753
> https://github.com/qgis/QGIS/issues/60737
> https://github.com/qgis/QGIS/issues/60737#issuecomment-2681153366
> https://github.com/qgis/QGIS/issues/60737#issuecomment-2682143620
> https://github.com/qgis/QGIS/issues/60743#issuecomment-2682144834

Fix submitted as https://github.com/qgis/QGIS/pull/60759

Nyall

>
> Best regards.
>
> Andrea
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