> Another thing, the raster size. Since the real raster, whose size is > given in GridEnvelope in CoverageDescription, may be rotated relative to > the GDAL dataset, the GDAL dataset size is in general case not the size > of the real raster. It's just a computation but the result is that the > size of the WCS dataset raster may be an approximation.
Ah, i think I see your point If the grid offsetVector express a rotation. WCSParseGMLCoverage() currently expose as dimension the value of limits.GridEnvelope.high[] - limits.GridEnvelope.low[] + 1 and the offsetVector's in the geotransform. So this is consistant. But when you do a RasterIO() request which translates to a WCS GetCoverage request you express a BBOX, and not something in grid/image coordinates. Wondering what kind of response a server would return then... Would it be a "straigth" grid our would it keep the rotation exposed in the CoverageDescription -- Spatialys - Geospatial professional services http://www.spatialys.com
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