I see differences between "WKT Version 2" from EPSG (e.g. https://epsg.org/crs/wkt/id/10764) and "WKT2:2019" from projinfo (e.g. projinfo epsg:10764).
1. A lot of IDs that are mentioned in the EPSG version are missing in projinfo. What I personally miss mostly is the IDs for PROJCRS and VERTCRS in a COMPOUNDCRS. Confusingly, the ID["EPSG",8806] for the LENGTHUNIT["metre",1] is not given by projinfo for ELLIPSOID, but is given for PARAMETER["False easting" etc. in projinfo. 1. Some other data like PRIMEM and USAGE are mentioned by projinfo, but not in the EPSG version. Why the differences, and is there a correct way? It seems to me that most of the information is redundant anyway, just the EPSG code could do: e.g. COMPOUNDCRS["Bonaire DPnet + Bonaire height",ID["EPSG",10764]]. What elements are mandatory and what not? This is relevant to me because we might want to change the CONVERSION of some PROJCRSs in EPSG in the future without changing the ID of the PROJCRS. Omitting the CONVERSION and only mentioning the ID of the PROJCRS in the WKT therefore seems a saver choice for the metadata of geo-information. Is this allowed? 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].
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