[QGIS-Developer] GRIB files projection errors

Saber Razmjooei saber.razmjooei at lutraconsulting.co.uk
Tue Jan 9 12:37:49 PST 2018


Hi Paolo,

You can download the files directly from ECMWF. Maybe it is a bug with the
ZyGrib data processing.

For Crayfish you can compile it yourself:
https://github.com/lutraconsulting/qgis-crayfish-plugin/blob/master/README.md#installing-crayfish-on-linux


Regards
Saber


On 9 Jan 2018 8:14 pm, "Paolo Cavallini" <cavallini at faunalia.it> wrote:

Hi Saber,
thanks for checking. The sample mentioned in the ticket loads fine, but
its SRS is not recognized correctly (it appears as a custom EPSG,
whereas it should be 4326, I guess).
Further tests reveal that other gribs (downloaded with ZyGrib) have an
incorrect extent, and there fore are not loaded correctly. You can check
yourself or use this sample:
http://www.faunalia.eu/~paolo/grib2.bz2
As for crayfish, I'd need a solution using plain QGIS, as I'd like to
build a plugin based on grib. Furthermore, I would not like to use
non-Debian binaries on my system.
All the best.

Il 09/01/2018 14:53, Saber Razmjooei ha scritto:
> Hi Paolo,
>
> It works fine for me.
> Have you tried to open it with Crayfish as it will handle the bands
> properly?
>
> Regards
> Saber
>
> On 9 January 2018 at 12:08, Paolo Cavallini <cavallini at faunalia.it
> <mailto:cavallini at faunalia.it>> wrote:
>
>     Hi all,
>     loading a GRIB file does not work properly, because of a projection
and
>     extent issue (mentioned in https://issues.qgis.org/issues/17219
>     <https://issues.qgis.org/issues/17219>).
>     The issue may reside in GDAL. Has anyone already worked on this?
>     Thanks.
>     --
>     Paolo Cavallini - www.faunalia.eu <http://www.faunalia.eu>
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--
Paolo Cavallini - www.faunalia.eu
QGIS & PostGIS courses: http://www.faunalia.eu/training.html
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