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opengeospatial / ogcapi-tiles

OGC API - Tiles draft specification
https://ogcapi.ogc.org/tiles
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crs.wkt name confusing #170

Open rouault opened 1 month ago

rouault commented 1 month ago

The mention of "wkt" in the crs.yaml in https://github.com/opengeospatial/ogcapi-tiles/blob/dabbe22ad2eec931a4f32289ffaa3f1a2aea6ed1/openapi/schemas/common-geodata/crs.yaml#L15 is very confusing. The description mentions "An object defining the CRS using the JSON encoding for Well-known text representation of coordinate reference systems 2.0". JSON != WKT . WKT CRS is a well established naming for things like GEOGCS[], GEOGCRS[], PROJCS[], etc. Definitely not appropriate for any JSON encoding, be it PROJJSON or a so-called "improved" version of it

jerstlouis commented 1 month ago

@rouault I wholeheartedly agree.

Although it sits in this common-geodata directory, this is actually only for 2DTMS & TSMD.

Perhaps in a minor revision we could deprecate this wkt and add projjson or crsjson, and perhaps add wkt2crs as well?

In any case, it is much more preferable (and interoperable) to use a registered CRS and use the uri field instead, if at all possible.