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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D">Marco,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D"> I think that is a great idea to ship GSB files with QGIS. If the developers of GDAL were to make a decision to bundle them then QGIS should just make
use of them. We often encounter datasets in older datums/adjustments and need to use these files.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D"> Bob Bruce
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext"> qgis-developer-bounces@lists.osgeo.org
[mailto:qgis-developer-bounces@lists.osgeo.org] <b>On Behalf Of </b>Marco Hugentobler<br>
<b>Sent:</b> March-14-14 8:45 AM<br>
<b>Cc:</b> qgis-developer<br>
<b>Subject:</b> Re: [Qgis-developer] [gdal-dev] Fix for QGIS 2.2+ Projection issue with OSGB36 NTv2<o:p></o:p></span></p>
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<p class="MsoNormal">Hi<br>
<br>
The info for OSGB36 NTv2 is in srs.db now.<br>
<br>
>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).<br>
<br>
I'm receiving frequent suggestions of bundling .gsb files with QGIS. The problems I see with this are:<br>
- It adds the extra MB for QGIS too.<br>
- They come with various licences.<br>
- .gsb files are usefull for all tools working with proj. So a logical choice would be to have an optional package for proj4.<br>
<br>
Regards,<br>
Marco<br>
<br>
On 13.03.2014 18:20, Etienne Tourigny wrote:<o:p></o:p></p>
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<p class="MsoNormal">On Thu, Mar 13, 2014 at 4:27 AM, Marco Hugentobler <<a href="mailto:marco.hugentobler@sourcepole.ch" target="_blank">marco.hugentobler@sourcepole.ch</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">Hi<br>
<br>
I'm adding the entries for OSGB36 NTv2 to srs.db.<br>
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).<o:p></o:p></p>
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<p class="MsoNormal">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.<o:p></o:p></p>
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<p class="MsoNormal">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).<o:p></o:p></p>
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<p class="MsoNormal">cheers,<o:p></o:p></p>
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<p class="MsoNormal">Etienne<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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Regards,<br>
Marco <o:p></o:p></p>
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<br>
On 11.03.2014 18:23, Etienne Tourigny wrote:<o:p></o:p></p>
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<p class="MsoNormal">You email should be sent to the qgis-developer list (this is the gdal-dev list), which I am forwarding this to.<o:p></o:p></p>
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<p class="MsoNormal">On Tue, Mar 11, 2014 at 7:44 AM, Nicholas Duggan <<a href="mailto:dragons8mycat@live.co.uk" target="_blank">dragons8mycat@live.co.uk</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">Hi all,<br>
<br>
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.
<br>
<br>
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:
<a href="http://dragons8mycat.wordpress.com/2014/03/03/gis-tips-getting-ostn02-to-work-with-qgis-2-2/" target="_blank">
http://dragons8mycat.wordpress.com/2014/03/03/gis-tips-getting-ostn02-to-work-with-qgis-2-2/</a>
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<br>
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?<br>
<br>
Thanks,<br>
<br>
Nick D (@dragons8mycat)<o:p></o:p></p>
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<pre>-- <o:p></o:p></pre>
<pre>Dr. Marco Hugentobler<o:p></o:p></pre>
<pre>Sourcepole - Linux & Open Source Solutions<o:p></o:p></pre>
<pre>Weberstrasse 5, CH-8004 Zürich, Switzerland<o:p></o:p></pre>
<pre><a href="mailto:marco.hugentobler@sourcepole.ch" target="_blank">marco.hugentobler@sourcepole.ch</a> <a href="http://www.sourcepole.ch" target="_blank">http://www.sourcepole.ch</a><o:p></o:p></pre>
<pre>Technical Advisor QGIS Project Steering Committee <o:p></o:p></pre>
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<pre>-- <o:p></o:p></pre>
<pre>Dr. Marco Hugentobler<o:p></o:p></pre>
<pre>Sourcepole - Linux & Open Source Solutions<o:p></o:p></pre>
<pre>Weberstrasse 5, CH-8004 Zürich, Switzerland<o:p></o:p></pre>
<pre><a href="mailto:marco.hugentobler@sourcepole.ch">marco.hugentobler@sourcepole.ch</a> <a href="http://www.sourcepole.ch">http://www.sourcepole.ch</a><o:p></o:p></pre>
<pre>Technical Advisor QGIS Project Steering Committee <o:p></o:p></pre>
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