Hi,

A pure Python PROJJSON (not using pyproj) to WKT2 converter in https://github.com/rouault/projjson_to_wkt

And a Javascript port of it in https://github.com/m-mohr/projjson_to_wkt

Even

Le 21/10/2024 à 22:03, Howard Butler via PROJ a écrit :
All,

I am participating in the OGC CRS SWG [1] who is currently investigating the 
standardization of a JSON-based CRS definition such as PROJJSON [2]. One 
question that came up in our discussion is whether or not there are any 
alternative software implementations of PROJJSON besides PROJ's itself. Did you 
write one? Are you using PROJJSON in commercial or open source software that 
isn't PROJ-based? Is forward/backward compatibility of PROJJSON a priority for 
you? Information about these questions would be useful for us to know regarding 
possible enhancement or evolution of PROJJSON going forward.

There was also some interest in knowing where PROJJSON has been used in 
unexpected or unintentional ways. Are you using it as the CRS definition for 
your custom format or network protocol? We know of it being used by GeoParquet 
at the moment, but are there others?

Please help inform our discussion around standardization of JSON-based CRS 
definitions with some feedback on your use of PROJJSON in the wild.

Regards,

Howard



[1] https://github.com/opengeospatial/CRS-JSON-Encoding
[2] https://proj.org/specifications/projjson.html
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My software is free, but my time generally not.
Butcher of all kinds of standards, open or closed formats. At the end, this is 
just about bytes.

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