Hi,
I am having difficulties executing a WCS getCoverage query when converting
from the native coverage CRS (EPSG:26911) to EPSG4326. If I make a query
using the WCS Request Builder over the entire coverage bbox, I get an
Illegal grid range exception.
If I make the query for a smaller region within the coverage bbox I don't
get an exception, but the query never seems to return a response. Here is
the request XML:
<?xml version="1.0" encoding="UTF-8"?>
<GetCoverage version="1.1.1" service="WCS"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xmlns="http://www.opengis.net/wcs/1.1.1";
xmlns:ows="http://www.opengis.net/ows/1.1";
xmlns:gml="http://www.opengis.net/gml";
xmlns:ogc="http://www.opengis.net/ogc";
xsi:schemaLocation="http://www.opengis.net/wcs/1.1.1
http://schemas.opengis.net/wcs/1.1.1/wcsAll.xsd";>
<ows:Identifier>USGS:ortho</ows:Identifier>
<DomainSubset>
<ows:BoundingBox crs="urn:ogc:def:crs:EPSG::26911">
<ows:LowerCorner>477024.0 3656511.0</ows:LowerCorner>
<ows:UpperCorner>477124.0 3656611.0</ows:UpperCorner>
</ows:BoundingBox>
</DomainSubset>
<Output store="true" format="image/tiff;subtype="geotiff"">
<GridCRS>
<GridBaseCRS>urn:ogc:def:crs:EPSG::4326</GridBaseCRS>
<GridType>urn:ogc:def:method:WCS:1.1:2dSimpleGrid</GridType>
<GridOffsets>3.2238674990922263E-6 -2.715107510245265E-6</GridOffsets>
<GridCS>urn:ogc:def:cs:OGC:0.0:Grid2dSquareCS</GridCS>
</GridCRS>
</Output>
</GetCoverage>
If I make the same query specified as a URL:
localhost:8080/geoserver/wcs?request=GetCoverage&version=1.1.1&identifier=USGS:ortho&SERVICE=wcs&FORMAT=image/geotiff&BOUNDINGBOX=477024,3656511,477124,3656611,EPSG:26911&gridbasecrs=EPSG:4326
I get back an all black image. The requested bbox is within the coverage
bbox and I have added EPSG:4326 to the response SRS list for the layer. As
a sanity check, I made the same query without the CRS conversion and the
results were as expected.
Also is there a link to an explanation of GridType and GridOffset
parameters? It seems to be required by the XML request, but not in a
URL-based request.
I am using GeoServer 2.1.4, btw.
Any help would be greatly appreciated.
Thanks.
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