[QGIS-Developer] Dealing with datum shift grids in QGIS

Bernd Vogelgesang bernd.vogelgesang at gmx.de
Wed Oct 24 15:58:08 PDT 2018

Am 11.10.18 um 20:31 schrieb Kristian Evers:
>> On 11 Oct 2018, at 18:55, Martin Dobias <wonder.sk at gmail.com 
>> <mailto:wonder.sk at gmail.com>> wrote:
>> ...
> This would compliment or perhaps even replace the current
> proj-datumgrid packages that we maintain at the moment. It would
> still be based on a curated set of grids making sure that they are
> free to distribute. For the ones that are not available for 
> redistribution,
> well… I guess the makers of those grids don’t really want you to use
> them in the first place :-) In all seriousness though, there’s not much
> we can do. They are quite often behind a login so direct links can’t
> be offered. We do keep a non-exhaustive list of non-free grids here:
> https://proj4.org/resource_files.html#non-free-grids

I saw the German grid in the list of non-free grids. I already contacted 
the responsible administration in 2015 and they told me that the 
http://crs.bkg.bund.de/crseu/crs/descrtrans/BeTA/BETA2007.gsb is 
definately free to be distributed with any kind of software.

> If a feature like this  is something that might be useful to users of
> PROJ I we should look into this more closely.
> /Kristian
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