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

[Etienne Tourigny]

On Fri, Mar 14, 2014 at 10:44 AM, Marco Hugentobler <
marco.hugentobler at sourcepole.ch> wrote:

>  Hi
>
> The info for OSGB36 NTv2 is in srs.db now.
>
>
> >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).
>
> I'm receiving frequent suggestions of bundling .gsb files with QGIS. The
> problems I see with this are:
> - It adds the extra MB for QGIS too.
>

it should be an extra package, not part of main QGIS packages (for osgeo4w
and linux)


> - They come with various licences.
>

that would require a bit of time to make sure all added packages are ok to
distribute, but it's a one-time process.


> - .gsb files are usefull for all tools working with proj. So a logical
> choice would be to have an optional package for proj4.
>

Yes, but that would be up to others not QGIS, so adding them to the QGIS
packages would have more chances of actually happening.

It would be nice to have a point of view from those responsible for
packaging QGIS.

cheers,
Etienne


>
> Regards,
> Marco
>
>
> On 13.03.2014 18:20, Etienne Tourigny wrote:
>
>
> 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)
>>>
>>> _______________________________________________
>>> gdal-dev mailing list
>>> gdal-dev at lists.osgeo.org
>>> http://lists.osgeo.org/mailman/listinfo/gdal-dev
>>>
>>
>>
>>
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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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>> Qgis-developer at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/qgis-developer
>>
>
>
>
> --
> 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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> Qgis-developer at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/qgis-developer
>
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