[PROJ] Fwd: PROJ 9.6.0RC3

[Javier Jimenez Shaw]

Just some context:
AFAIK (somebody from the Finnish agency may have more information), there
was a long discussion between keeping the same code (changing the
geographic system), or creating a new CRS in EPSG.
The former option (change the CRS) was more convenient in the sense that
users do not have to use a different EPSG code. EPSG:3067 is well known,
and it is essentially the same thing (of course, this is opinable). The
disadvantage are the problems you are finding now.
The latter (create a new CRS) was more consistent with the principle of not
changing the CRS definition, that was the rule in EPSG. The disadvantage is
that people should move to the new one, having two "tween" systems. That
could also be confusing.

As you can see, the first option was finally adopted.

On Fri, 14 Mar 2025 at 14:03, Roger Bivand <Roger.Bivand at nhh.no> wrote:

> On Fri, 14 Mar 2025, Javier Jimenez Shaw wrote:
>
> > You don't often get email from j1 at jimenezshaw.com. Learn why this is
> > important<https://aka.ms/LearnAboutSenderIdentification>
>
> > That makes sense, because the definition of of EPSG:3067 changed. Before
> > was based on ETRS89, now on EUREF-FIN.
>
> Yes, I reported this as it may be found by others using CRS for Finland,
> and linked to an issue at the geofi repo. It may be that the Comprehensive
> R Archive Network (CRAN) will update to 9.6.0 shortly after release on
> some platforms, which would lead to geofi failing and having 14 days to
> correct - at least now the maintainer will be forewarned if they track new
> issues.
>
> Some users think that EPSG are fixed, though.
>
> Roger
>
>
> >
> > On Fri, 14 Mar 2025 at 13:48, Roger Bivand via PROJ <
> proj at lists.osgeo.org<mailto:proj at lists.osgeo.org>> wrote:
> > Standard build with RC3 OK (for manual build on Fedora 41 on which RC2
> > flipped to embedded resource file without this being chosen).
> >
> > Only one regression among 1100 R packages using PROJ/GDAL through the R
> > packages sf and terra is geofi, which compares the current definition of
> > EPSG:3067 with that from earlier PROJ/EPSG versions, and fails on
> > topological operations checking that CRS are the same where one object is
> > instantiated on-th-fly, and the one it is compared with was created and
> > serialized using an earlier PROJ/EPSG version:
> > https://github.com/rOpenGov/geofi/issues/52. geofi will need to
> condition
> > on PROJ/EPSG version.
> >
> > Roger
> >
> > --
> > Roger Bivand
> > Emeritus Professor
> > Department of Economics, Norwegian School of Economics,
> > Postboks 3490 Ytre Sandviken, 5045 Bergen, Norway.
> > e-mail: Roger.Bivand at nhh.no<mailto:Roger.Bivand at nhh.no>
> >
> > _______________________________________________
> > PROJ mailing list
> > PROJ at lists.osgeo.org<mailto:PROJ at lists.osgeo.org>
> > https://lists.osgeo.org/mailman/listinfo/proj
> >
>
> --
> Roger Bivand
> Emeritus Professor
> Department of Economics, Norwegian School of Economics,
> Postboks 3490 Ytre Sandviken, 5045 Bergen, Norway.
> e-mail: Roger.Bivand at nhh.no
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/proj/attachments/20250314/7a4c06d5/attachment-0001.htm>