Explore technical feasibility to retrieve RectifiedGridCoverages generated from ReferenceableGridCoverages

[Schpidi]

Reporter: meissls Date: 2012/04/17 17:07

Explore the technical feasibility of integrating an ad-hoc solution to support the retrieval of !RectifiedGridCoverages generated from !ReferenceableGridCoverages i.e. to reproject !ReferenceableGridCoverages to a geographic CRS.

Note that such an ad-hoc solution is NOT covered by the current WCS specification and thus not interoperable.

[Schpidi]

Date: 2012/04/17 17:15

A possibility is to use the outputCRS parameter to trigger the change i.e. outputCRS not present or set to imageCRS leaves the type as is and outputCRS set (e.g. "http://www.opengis.net/def/crs/EPSG/0/4326") always results in a !RectifiedGridCoverage.

Here's a possible test case for this:

class WCS20GetCoverageReferenceableDatasetGeogCRSSubsetOutputCRSTestCase(eoxstest.WCS20GetCoverageReferenceableGridCoverageMultipartTestCase):
    def getRequest(self):
        params = "service=wcs&version=2.0.0&request=GetCoverage&CoverageId=ASA_WSM_1PNDPA20050331_075939_000000552036_00035_16121_0775&format=image/tiff&mediatype=multipart/mixed&subset=x,http://www.opengis.net/def/crs/EPSG/0/4326(19.1,20.1)&subset=y,http://www.opengis.net/def/crs/EPSG/0/4326(-35,-32.9)&outputcrs=http://www.opengis.net/def/crs/EPSG/0/4326"
        return (params, "kvp")

[Schpidi]

Date: 2012/04/19 12:09

Moving to future as we decided to first start discussion in OGC.