Hi Even,
(Sorry mispelled your name in last email).
On 17-09-20 21:54, Even Rouault wrote:
On jeudi 17 septembre 2020 21:20:56 CEST Just van den Broecke wrote:
> Hi Evan,
>
> Thanks for your quick reply! Will try out other combinations of proj and
> MS with custom compiles and let you know here.
>
> I did not quite grasp your last paragraph, but I am no expert in the
> subject. For The Netherlands the expert is Lennard Huisman, formerly
> from Dutch Kadaster. IMHO he donated to proj the most accurate
> transformation with an NTV2 grid for the "real" Dutch coordinate system
> (another EPSG code), which was set out by hand via triangulation.
I suspect you're speaking about the rdtrans2008 or rdtrans2018 grids
that are for transformations between the Amersfoort datum and ETRS89. I
can't see any grids between Amersfoort and WGS84 registered in EPSG,
because of the time-dependent nature of WGS84 (well you could use the
grids for transformation to WGS84 if you're ready to consider ETRS89 ==
WGS84 for your purposes).
Yes, referring to those grids, indeed using ETRS89 for the reasons you
give (Eurasian tectonic plate I think). A sidestep.
EPSG:28992 is accurate enough for our purposes and easier to deploy.
Jeff gave some MS-Proj version combination compile hints we are going to
try out (thanks Jeff!). Thanks again, Even, also for your hard work on Proj.
Best,
Just
--
Spatialys - Geospatial professional services
http://www.spatialys.com
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