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opengeospatial / 2D-Tile-Matrix-Set

OGC 2D Tile Matrix Set & TileSet Metadata standard
https://www.ogc.org/standards/tms
Apache License 2.0
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Consider adding `Version` in the schema #82

Open vincentsarago opened 1 year ago

vincentsarago commented 1 year ago

Hi, First thanks for the hard work put in defining the specificatio. It's true that I usually mostly complain about OGC specs because I find them hard to follow. Anyway I wanted to propose we add a Version into the TMS specification (maybe it exists but I didn't find it), because right now it's pretty hard to see in which version a TMS is based on. IMO having a simple version: 1.0 or version: 2.0 will make it easier.

I understand this comes late to the party but if this is something that could be considered for later version it will be great IMO.

Thank you

jerstlouis commented 1 year ago

Thank you very much for the feedback @vincentsarago , I agree this would have been a good idea, and we should do this for later versions.

In truth, I don't think we really expected the TileMatrixSet standard to get much use before we (OGC) put out a standard (e.g., OGC API - Tiles) that referenced it, but I realized that projects like TiTiler actually used it :).

For reading both version 1.0 and 2.0, I think the easiest approach would be to support both the old and new name for the properties. The breaking changes between the two is detailed in https://docs.opengeospatial.org/is/17-083r4/21-066r1.html#Clause_Critical .