[gdal-dev] subdatasets of

[Even Rouault]

Michael,

apart your code not using the same GDAL version as the one of gdalinfo 
(but I can't recall versions having such issues), or a flow in your 
code, I don't see why you'd this.

Even

Le 31/08/2021 à 12:07, Michael Sumner a écrit :
> Hello, I'm having trouble getting subdataset names programatically 
> from the WMTS/OGC Web Map Tile Service
>
> Using
>
> /vsicurl/https://gibs.earthdata.nasa.gov/wmts/epsg3031/best/1.0.0/WMTSCapabilities.xml 
> <https://gibs.earthdata.nasa.gov/wmts/epsg3031/best/1.0.0/WMTSCapabilities.xml>
>
> I see many well named SDS sources from gdalinfo, i.e. listed below.
>
> But when I try to obtain these programatically I only get repeated 
> values : literally
>
> "WMTS:/vsicurl/https://gibs.earthdata.nasa.gov/wmts/epsg3031/best/1.0.0/WMTSCapabilities.xml,layer 
> <https://gibs.earthdata.nasa.gov/wmts/epsg3031/best/1.0.0/WMTSCapabilities.xml,layer>"
>
> I'm using (effectively)
>
> char **SDS = poDataset->GetMetadata("SUBDATASETS");
>
> and that gives me the same value for every SDS, i.e. no layer name.
>
> Is there something extra that needs to be done especially for WMTS? I 
> can't figure it out from the sources.
>
> Thanks for any help!
>
> Best, Mike
>
>
>
> gdalinfo  
> /vsicurl/https://gibs.earthdata.nasa.gov/wmts/epsg3031/best/1.0.0/WMTSCapabilities.xml 
> <https://gibs.earthdata.nasa.gov/wmts/epsg3031/best/1.0.0/WMTSCapabilities.xml>
> Driver: WMTS/OGC Web Map Tile Service
> Files: 
> /vsicurl/https://gibs.earthdata.nasa.gov/wmts/epsg3031/best/1.0.0/WMTSCapabilities.xml 
> <https://gibs.earthdata.nasa.gov/wmts/epsg3031/best/1.0.0/WMTSCapabilities.xml>
> Size is 512, 512
> Origin = (0.000000000000000,0.000000000000000)
> Pixel Size = (1.000000000000000,1.000000000000000)
> Subdatasets:
>   
> SUBDATASET_1_NAME=WMTS:/vsicurl/https://gibs.earthdata.nasa.gov/wmts/epsg3031/best/1.0.0/WMTSCapabilities.xml,layer=AMSRE_Sea_Ice_Concentration_12km 
> <https://gibs.earthdata.nasa.gov/wmts/epsg3031/best/1.0.0/WMTSCapabilities.xml,layer=AMSRE_Sea_Ice_Concentration_12km>
>   SUBDATASET_1_DESC=Layer Sea Ice Concentration (12 km, AMSR-E, Aqua)
>   
> SUBDATASET_2_NAME=WMTS:/vsicurl/https://gibs.earthdata.nasa.gov/wmts/epsg3031/best/1.0.0/WMTSCapabilities.xml,layer=AMSRE_Snow_Depth_Over_Ice 
> <https://gibs.earthdata.nasa.gov/wmts/epsg3031/best/1.0.0/WMTSCapabilities.xml,layer=AMSRE_Snow_Depth_Over_Ice>
>   SUBDATASET_2_DESC=Layer Snow Depth Over Ice (12 km, AMSR-E, Aqua)
>   
> SUBDATASET_3_NAME=WMTS:/vsicurl/https://gibs.earthdata.nasa.gov/wmts/epsg3031/best/1.0.0/WMTSCapabilities.xml,layer=AMSRE_Sea_Ice_Concentration_25km 
> <https://gibs.earthdata.nasa.gov/wmts/epsg3031/best/1.0.0/WMTSCapabilities.xml,layer=AMSRE_Sea_Ice_Concentration_25km>
>   S
>
> -- 
> Michael Sumner
> Software and Database Engineer
> Australian Antarctic Division
> Hobart, Australia
> e-mail: mdsumner at gmail.com <mailto:mdsumner at gmail.com>
>
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-- 
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