[gdal-dev] WMS supported SRS

[Even Rouault]

Michał,

Le 10/09/2024 à 14:14, Michał Kowalczuk via gdal-dev a écrit :
> I found that there was a similar issue in 2021 without any specific 
> answer:
> https://www.mail-archive.com/gdal-dev@lists.osgeo.org/msg35549.html
>
> I wonder if getting SUBDATASETS shouldn't return the result in a 
> similar way as it does for WMTS service,
> where GDAL generates paths to all layer/tilematrix/tilematrixset 
> combination.
> For example if layer is available in 3 SRS, GDAL produces 3 
> subdatasets, so using only SUBDATASE_NAME property user has access to 
> all map services shared by WMTS server.
> In my opinion, GDAL should use the same approach for WMS.
>
> Does anyone object?
> I will then submit a new feature request/bug report.

That sounds useful. However I'm wondering if users won't be overwhelmed 
by a tons of possible SRS. WMS GetCapabilities tend sometimes to list 
tons of possible SRS. With WMTS, as you need to provide TileMatrixSet 
definitions, that's less likely to happen. So perhaps add a 
LIST_ALL_SRS=YES/NO open option, possibly defaulting to NO.

Even

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