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<p class="MsoNormal"><span style="color:#1F497D">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> </span><span lang="EN-GB" style="color:#1F497D">I’ve just created a pull request to integrate this change.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:35.4pt"><span style="color:#1F497D"><a href="https://github.com/OSGeo/proj-datumgrid/pull/46"><span lang="EN-GB">https://github.com/OSGeo/proj-datumgrid/pull/46</span></a><o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:35.4pt"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-indent:35.4pt"><span lang="EN-GB" style="color:#1F497D">Tell me if it's done right, this is my first use of git.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:35.4pt"><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-indent:35.4pt"><span lang="EN-GB" style="color:#1F497D">Thanks<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:35.4pt"><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D">Nicolas Simon<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="FR" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">De :</span></b><span lang="FR" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Kristian Evers [mailto:kreve@sdfe.dk]
<br>
<b>Envoyé :</b> jeudi 14 février 2019 16:01<br>
<b>À :</b> Praet Karin; proj@lists.osgeo.org<br>
<b>Objet :</b> SV: [PROJ] request for integration of optimized transformatiegrid BD72 to ETRS89<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="DA" style="color:#1F497D">Hello Karin,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DA" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">As long as your grids are released on a suitable open source compatible license, yes it is possible to add them to PROJ. If you are quick (as in today) and open a pull request in the proj-datumgrid
repository [0] it can become part of the coming version 6 of PROJ. I am not sure if transformations to and from EPSG:31370 will be using the grids by default without also modifying the source code of PROJ. Even Rouault should be able to clear that up though.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">/Kristian<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">[0] <a href="https://github.com/OSGeo/proj-datumgrid">
https://github.com/OSGeo/proj-datumgrid</a> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="DA">Fra:</span></b><span lang="DA"> PROJ <proj-bounces@lists.osgeo.org>
<b>På vegne af </b>Praet Karin<br>
<b>Sendt:</b> 14. februar 2019 15:53<br>
<b>Til:</b> proj@lists.osgeo.org<br>
<b>Emne:</b> [PROJ] request for integration of optimized transformatiegrid BD72 to ETRS89<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="DA"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="NL-BE" style="font-size:10.0pt;font-family:"Verdana","sans-serif"">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="NL-BE" style="font-size:10.0pt;font-family:"Verdana","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="NL-BE" style="font-size:10.0pt;font-family:"Verdana","sans-serif"">The Belgian National Institute of Geography (NGI) has published a more accurate transformationgrid to convert between Belgian Datum 1972 tot ETRS 89.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="NL-BE" style="font-size:10.0pt;font-family:"Verdana","sans-serif"">As Belgian Lambert 1972 (EPSG:31370), based on BD72, is widely used in Belgium – is it possible to integrate this transformationgrid as the default transformation
for this datum?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="NL-BE" style="font-size:10.0pt;font-family:"Verdana","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="NL-BE" style="font-size:10.0pt;font-family:"Verdana","sans-serif"">Documentation in Dutch: <a href="http://www.ngi.be/NL/NL2-1-7.shtm">http://www.ngi.be/NL/NL2-1-7.shtm</a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="NL-BE" style="font-size:10.0pt;font-family:"Verdana","sans-serif"">Documentation in French:
<a href="http://www.ngi.be/FR/FR2-1-7.shtm">http://www.ngi.be/FR/FR2-1-7.shtm</a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="NL-BE" style="font-size:10.0pt;font-family:"Verdana","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="NL-BE" style="font-size:10.0pt;font-family:"Verdana","sans-serif"">The grid is called: bd72lb72_etrs89lb08.gsb
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="NL-BE" style="font-size:10.0pt;font-family:"Verdana","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="NL-BE" style="font-size:10.0pt;font-family:"Verdana","sans-serif"">Regards<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="NL-BE" style="font-size:10.0pt;font-family:"Verdana","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="NL-BE" style="font-size:10.0pt;font-family:"Verdana","sans-serif"">Karin Praet<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="NL-BE" style="font-size:10.0pt;font-family:"Verdana","sans-serif"">Provincie Limburg, Hasselt, Belgium<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="NL-BE" style="font-size:10.0pt;font-family:"Verdana","sans-serif""><o:p> </o:p></span></p>
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