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.
- They come with various licences.
- .gsb files are usefull for all tools working with proj. So a logical
choice would be to have an optional package for proj4.
Regards,
Marco
On 13.03.2014 18:20, Etienne Tourigny wrote:
On Thu, Mar 13, 2014 at 4:27 AM, Marco Hugentobler
<[email protected]
<mailto:[email protected]>> 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
<[email protected] <mailto:[email protected]>> 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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Dr. Marco Hugentobler
Sourcepole - Linux & Open Source Solutions
Weberstrasse 5, CH-8004 Zürich, Switzerland
[email protected] <mailto:[email protected]>
http://www.sourcepole.ch
Technical Advisor QGIS Project Steering Committee
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--
Dr. Marco Hugentobler
Sourcepole - Linux & Open Source Solutions
Weberstrasse 5, CH-8004 Zürich, Switzerland
[email protected] http://www.sourcepole.ch
Technical Advisor QGIS Project Steering Committee
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