[gdal-dev] WCS driver

[jratike80]

Ari Jolma-2 wrote
> Ari Jolma kirjoitti 27.10.2017 klo 19:38:
>>
>>
>> * I'm testing against existing ArcGIS, GeoServer and MapServer servers 
>> on the net
> 
> Version 1.0.0 seems to be usually understandable/ok but strangeness 
> begins with 1.1
> 
> For example this request to a MapServer WCS (I'm not responsible for 
> that server so don't know much about it), which is generated in the 
> driver during a DescribeCoverage for the coverage,
> 
> http://194.66.252.155/cgi-bin/BGS_EMODnet_bathymetry/ows?SERVICE=WCS&VERSION=1.1.1&REQUEST=GetCoverage&IDENTIFIER=BGS_EMODNET_CentralMed-MCol&FORMAT=image%2Ftiff&BOUNDINGBOX=9.833333335,46.183333325,9.837500005,46.187499995,urn:ogc:def:crs:EPSG::4326&RangeSubset=band
> 
> gets the response
> 
> WCS server error. Requested BBOX 
> (46.183333325,9.833333335,46.187499995,9.837500005) is outside requested 
> coverage BBOX (9.83125,30.01040372,22.23542659,46.18958333)
> 
> If I change the order of X and Y in the bounding box in the request, the 
> reply is ok. I'm thinking MapServer is in error here, for example 
> similar request to ArcGIS WCS server
> 
> http://paikkatieto.ymparisto.fi/arcgis/services/Testit/Velmu_wcs_testi/MapServer/WCSServer?SERVICE=WCS&VERSION=1.1.2&REQUEST=GetCoverage&IDENTIFIER=1&FORMAT=image%2FGeoTIFF&BOUNDINGBOX=61686.0383772501,7302181.14320843,61706.0383772501,7302201.14320843,urn:ogc:def:crs:EPSG::3067&RangeSubset=Field_1
> 
> gets an ok response.
> 
> The case of GeoServer is also strange
> 
> https://msp.smartsea.fmi.fi/geoserver/wcs?SERVICE=WCS&VERSION=1.1.1&REQUEST=GetCoverage&IDENTIFIER=smartsea%3Aeusm2016&FORMAT=image%2Ftiff&BOUNDINGBOX=61610,7303970,61630,7303990,urn:ogc:def:crs:EPSG::3067&RangeSubset=contents
> 
> -- GeoServer does not seem to understand that GDAL wants only a 2 x 2 
> sample - the response is huge (the whole geotiff?).
> 
> Ari

Hi,

BoundingBoxes in WCS 1.1.x and 2.x must follow the axis order of the
coordinate system, so with urn:ogc:def:crs:EPSG::4326 it must be
latitude-longitude. EPSG:3067 is natively an easting-northing system and
therefore it can make you believe that everything works fine but if you test
the Finnish services also with northing-easting system EPSG:2393 you may get
more frustration.

An open Geoserver with a DEM of Finland is available for testing at
http://avoindata.maanmittauslaitos.fi/geoserver/wcs?service=WCS&version=2.0.1&request=GetCapabilities

-Jukka Rahkonen-




--
Sent from: http://osgeo-org.1560.x6.nabble.com/GDAL-Dev-f3742093.html