Jukka,
I don't understand how you get a non-error on the below request on your
WCS service:
https://beta-karttakuva.maanmittauslaitos.fi/wcs/service/ows?SERVICE=WCS&REQUEST=DescribeCoverage&VERSION=2.0.1&COVERAGEID=korkeusmalli__korkeusmalli&FORMAT=text/xml
advertizes 3 bands
but the GeoTIFF returned by
https://beta-karttakuva.maanmittauslaitos.fi/wcs/service/ows?SERVICE=WCS&REQUEST=GetCoverage&VERSION=2.0.1&COVERAGEID=korkeusmalli__korkeusmalli&SUBSET=E%28498656,500704%29&SUBSET=N%287542384,7543408%29&Format=image/tiff
has just one band.
Or maybe you have in your ~/gdal/wcs_cache a previous version of the
DescribeCoverage response that advertizes just one band ?
And for what is worth,
gdallocationinfo
"WCS:https://elevation.nationalmap.gov:443/arcgis/services/3DEPElevation/ImageServer/WCSServer?version=2.0.1&coverage=DEP3Elevation
<https://elevation.nationalmap.gov:443/arcgis/services/3DEPElevation/ImageServer/WCSServer?version=2.0.1&coverage=DEP3Elevation>"
-wgs84 -122.086 42.948 --debug ON
returns 1882.00549316406 for me
The multipart answer doesn't seem to be an issue.
Le 21/10/2021 à 20:16, Rahkonen Jukka (MML) a écrit :
Hi,
At least it seems to work with our WCS service
gdallocationinfo
WCS:https://beta-karttakuva.maanmittauslaitos.fi/wcs/service/ows?version=2.0.1&coverage=korkeusmalli__korkeusmalli
<https://beta-karttakuva.maanmittauslaitos.fi/wcs/service/ows?version=2.0.1&coverage=korkeusmalli__korkeusmalli>
-wgs84 27 68
Report:
Location: (228000P,119567L)
Band 1:
Value: 303.463989257812
-Jukka Rahkonen-
*Lähettäjä:* gdal-dev <[email protected]> *Puolesta
*Carl Godkin
*Lähetetty:* torstai 21. lokakuuta 2021 18.47
*Vastaanottaja:* [email protected]
*Aihe:* [gdal-dev] gdallocationinfo + WCS question...
Hi,
I am trying to use gdallocationinfo to query point locations from a
WCS server and not having any luck. I don't see anything in the docs
that says this is unsupported but I can't make it work.
First of all, is there a better way to get an elevation from a given
lat,lon using WCS?
Here's an example query using the USGS National Map server:
gdallocationinfo
"WCS:https://elevation.nationalmap.gov:443/arcgis/services/3DEPElevation/ImageServer/WCSServer?version=2.0.1&coverage=DEP3Elevation
<https://elevation.nationalmap.gov:443/arcgis/services/3DEPElevation/ImageServer/WCSServer?version=2.0.1&coverage=DEP3Elevation>"
-wgs84 -122.086 42.948 --debug ON
This is a point in the middle of Crater Lake which I picked since it's
flat and I know what to expect.
Anyway, looking at the debug output it appears that the program is
querying for a GeoTIFF of a VERY large area and that's failing.
I actually want to do this with my own WCS server but thought it might
be mis-configured somehow so I tried the USGS server. With my own
server, gdallocationinfo seems to be requesting a strange shape from
the server (as I can see through the debug output).
Thanks for any help,
carl
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