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Hi Bill, thanks for the help.Indeed some of my Gridded2DSets from the OUTLUSAM BaseMapAdapter must have been self-intersecting, and others gave a null Irregular2DSet as a result of the fill operation. This makes sense since I supplied a bounding lat/lon box, so I expect some non closed regions.
What i didn't know was that cannot add Gridded2DSets and Irregular2DSets to the same UnionSet object, all manifolds have to match. I was hoping to maintain any coastlines I could not fill.
A better way is to increase my lat/lon boundary to be bigger than the area I am trying to show. Anyways, I get great filled land masses, looks mDSet'such better. Thanks again Stuart ============================================================================== To unsubscribe visad, visit: http://www.unidata.ucar.edu/mailing-list-delete-form.html ==============================================================================
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