Specified interpolation method for coverages is not being used
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Key: GEOS-828
URL: http://jira.codehaus.org/browse/GEOS-828
Project: GeoServer
Issue Type: Bug
Components: WCS
Affects Versions: 1.5.x
Environment: Linux with Java 1.4, JAI and ImageIO
Reporter: Alex Petkov
Assigned To: Andrea Aime
Specified interpolation method for coverages doesn't seem to be used for the rendering of a coverage. For example, one of the sample datasets (Img_Sample) has "nearest neigbor" for supported interpolation. During a GetMap request, however, "interpolation null" is passed to Geotools' GridCoverageRenderer, in which case the renderer assumes Bilinear interpolation.
The WCS spec states that the interpolation method for the coverage should be the one listed in the optional supportedInterpolations element. If this optional element is missing, "nearest neighbor" should be assumed by clients.
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