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<p class="MsoNormal" style="margin-left:35.4pt"><span lang="EN-GB">ER wrote:<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:35.4pt"><span lang="EN-GB">> Changing from ETRS89 to ETRF2000 could (potentially) negatively impact workflows RDNAP to ETRS89 that behave properly currently. Anyway you can simulate that by hacking your proj.db and modifying
the existing records or adding ones to see the effect of your changes<br>
<br>
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">I will check that. This kind of risk is exactly the reason I asked the question here, before I send a request to EPSG. Thanks!<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:35.4pt"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:35.4pt"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:35.4pt"><span lang="EN-GB">ER wrote:<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:35.4pt"><span lang="EN-GB">></span><span lang="EN-GB"> The null transformation between ETRS89 and ETRF2014 comes with the definition of the datum ensemble ETRS89 (cf change
</span><a href="https://github.com/OSGeo/PROJ/issues/3263"><span lang="EN-GB">https://github.com/OSGeo/PROJ/issues/3263</span></a><span lang="EN-GB">)</span><span lang="EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">The problem is not the null transformation between the ensemble and its members, but that the transformation route through ETRF2014 is recommended. In my opinion, the route trough ETRF2000 should be the default. Not only
for the Netherlands but, for Europe in general. <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Thus ETRS89 -> ETRF2000 -> ITRF2000 -> ITRF2014
</span><span lang="EN-GB">instead of </span><span lang="EN-GB">ETRS89 -> ETRF2014 -> ITRF2014. What makes PROJ choose the latter?</span><span lang="EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Jochem<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
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