[PROJ] conversion from northing-easing system

[Javier Jimenez Shaw]

Thanks Even.

I understand that AXIS tag is not supported in some WKT1 standards (well,
that is what "I understand" reading WKT2 standard).
However,
 projinfo EPSG:25833 -o wkt1_gdal
generates a WKT with the two AXIS tags (easting-northing). Is that valid?

Javier

On Tue, 14 Mar 2023 at 19:11, Even Rouault <even.rouault at spatialys.com>
wrote:

> Hi Javier,
> >
> > Is that normal?
>
> yes, WKT1_GDAL emulates the behaviour of the GDAL <= 2.4 era. In
> particular GDAL <= 2.4 by default didn't include the AXIS[] definitions,
> so when importing from such WKT, easting/northing order is assumed.
>
> Note: GDAL 2.4 supported the EPSGA (A for AXIS) pseudo authority, so
> when resolving EPSGA:31467, it outputed a WKT1 with AXIS[]. But I didn't
> try to emulate that rather esoteric behaviour in the PROJ 6 rewrite.
>
> Bottom line: only use WKT1_GDAL for legacy purposes, understanding that
> there are a number of potential stumbling points in doing so.
>
> Even
>
> --
>
> http://www.spatialys.com
> My software is free, but my time generally not.
>
>
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