[MetaCRS] publishing grid shift files

Siki Zoltan siki at agt.bme.hu
Wed Aug 12 09:18:35 PDT 2015


Dear Sebastian,

thanks for the tip, I've added the Hungarian grid to the github page.

Regards,
Zoltan

On Wed, 12 Aug 2015, Sebastiaan Couwenberg wrote:

> On 12-08-15 09:06, Siki Zoltan wrote:
>> i'm new to this list. At the Budapest University (Hungary) we have
>> created two grid shift files for proj.4 for our local CRS (HD72/EOV
>> EPGS:23700), one for the horizontal coordinates (etrs2eov_notowgs.gsb)
>> and one for the elevations (geoid_eth2014.gtx).  We would like to
>> publish them on the proj.4 website, too. These grid shift files are
>> available on our github page:
>> https://github.com/OSGeoLabBp/eov2etrs
>
> It's great that it's published under the GPL-2+, most national grid
> shift files limit modification like the EPSG dataset does.
>
> I'd love for other national grids to follow your example.
>
>> Is it possible? Can you help me?
>
> I would start by linking to the Hungarian datum shift grid from the
> PROJ.4 wiki where many of the other national grids are listed too:
>
> https://github.com/OSGeo/proj.4/wiki
>
> Kind Regards,
>
> Bas
>
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