masking subregions in a country shapefile

Hi all,   does anybody know how to easily mask subregions using the info from a shape file? It is not simply Germany but Brandenburg, Saxony, etc, therefore I guess the FillAreaSpecifiers do not know about these regions. If I use gc_inout and loop over specified lat/lons NCL complains about the large dimensionsize of the lats from the shapefile and goes down.   But I can see that the shapefile (DEU_adm1 from gadm.org)  is providing the attribute "Features" which might be the subregions. I wonder If I could use the example shapefiles_6.ncl and extend it for a mask plot.   But how to do this efficiently?   Grateful for any comments, Kristina

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Received on Wed Nov 30 09:43:17 2011