[Qgis-developer] [gdal-dev] Fix for QGIS 2.2+ Projection issue with OSGB36 NTv2

[Etienne Tourigny]

On Thu, Mar 13, 2014 at 4:27 AM, Marco Hugentobler <
marco.hugentobler at sourcepole.ch> wrote:

>  Hi
>
> I'm adding the entries for OSGB36 NTv2 to srs.db.
> For the .gsb file, you could probably contact the proj4 project if they
> want it to distribute it togethere with the library (if the license allows
> that).
>


I guess that's unlikely they would add it to the binary packages, as it
would add a few MB to the base install.  But they might add it to
proj-datumgrid-1.5.zip (which contains many free datum files), as the
licence for the grid is BSD.

Makes me think - could QGIS ship with the freely available gsb grids, in an
optional package (say qgis-datum-grids)?  It would be rather convenient,
especially as QGIS now supports them (but does not ship with any grids yet,
unless mistaken).

cheers,
Etienne


>
> Regards,
> Marco
>
>
> On 11.03.2014 18:23, Etienne Tourigny wrote:
>
>  You email should be sent to the qgis-developer list (this is the
> gdal-dev list), which I am forwarding this to.
>
>
> On Tue, Mar 11, 2014 at 7:44 AM, Nicholas Duggan <dragons8mycat at live.co.uk
> > wrote:
>
>>  Hi all,
>>
>> I'm trying to get my fix for the OSGB36 to WGS84 using Ordnance Surveys
>> OSTN02 (NTv2) transformation into the QGIS master. Nathan Woodrow
>> recommended I bring it up with you guys who might be able to implement it.
>>
>> Essentially I've updated the QGIS srs.db and put the OSTN02_NTv2.gsb in
>> the Share/Proj folder, full description and files are here:
>> http://dragons8mycat.wordpress.com/2014/03/03/gis-tips-getting-ostn02-to-work-with-qgis-2-2/
>>
>> Is this something which can be implemented by yourselves or can you point
>> me in the right direction for getting it put in the master/future releases?
>>
>> Thanks,
>>
>> Nick D (@dragons8mycat)
>>
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>>
>
>
>
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> --
> Dr. Marco Hugentobler
> Sourcepole -  Linux & Open Source Solutions
> Weberstrasse 5, CH-8004 Zürich, Switzerlandmarco.hugentobler at sourcepole.ch http://www.sourcepole.ch
> Technical Advisor QGIS Project Steering Committee
>
>
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