[gdal-dev] subdatasets of

[Michael Sumner]

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

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
"

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
Driver: WMTS/OGC Web Map Tile Service
Files: /vsicurl/
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
  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
  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
  S

-- 
Michael Sumner
Software and Database Engineer
Australian Antarctic Division
Hobart, Australia
e-mail: mdsumner at gmail.com
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