Jochem, You're most welcome to submit a PR with a solution that fits your needs. Otherwise, I believe the solution to the problem you mention is to have a geometric national system, which you link to the global with a Helmert operation, then a separate step for the geometric-to-geophysical. Alternatively, use a pipeline, which will hide the axisswap steps from the end user.
Den tirs. 7. maj 2024 kl. 14.23 skrev Lesparre, Jochem via PROJ < [email protected]>: > Hi Even, > > > > For the 3 islands of the Dutch Caribbean we have 2 islands with a > time-dependent transformation (with no geoid yet) and 1 island with a (not > yet time-dependent) transformation with a geoid. Using the 4th component > and axisswap for the height would be too confusing. Moreover, we are going > to introduce a time-dependent transformation for the third island as soon > as possible. > > > > The combination of a 7-parameter transformation and a geoid is the most > basic transformation from an international 3D geographic CRS to a national > projected CRS and a national physical height system. Don’t you find it > troublesome that PROJ needs a workaround for that? I really hope you will > be able to choose an approach soon, even if it isn’t entirely your taste. > > > > Jochem > > > > > Disclaimer: > De inhoud van deze e-mail is vertrouwelijk en uitsluitend bestemd voor de > geadresseerde(n). > Gebruik, openbaarmaking, vermenigvuldiging, verspreiding en/of > verstrekking van deze informatie aan derden is niet toegestaan. > Op al onze producten en diensten zijn onze algemene leveringsvoorwaarden > van toepassing > [https://www.kadaster.nl/algemene-leveringsvoorwaarden]. > > Disclaimer: > This email and any files transmitted with it are confidential and intended > solely for the use of the individual or entity to whom they are addressed. > If you are not the intended recipient, you are notified that disclosing, > copying, distributing or taking any action in reliance on the contents of > this information is strictly prohibited. > Our general terms and conditions of delivery apply to all our products and > services > [https://www.kadaster.com/general-terms-and-conditions]. > _______________________________________________ > PROJ mailing list > [email protected] > https://lists.osgeo.org/mailman/listinfo/proj >
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