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). -- Spatialys - Geospatial professional services http://www.spatialys.com
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