Polygons with islands are not drawn using plot or spplot

Hi,

I'm beginning with R. Excuse me in case my question has already been asked.

When I plot polygons with a color fill, the fill color is empty for polygons
who have got islands.

Any issue for this?

Please provide a very short reproducible example, if necessary posting 
data files on a web server; also remember to report the output of 
sessionInfo(). The answer is that for some reason the hole slots of the 
component Polygon objects are not being set correctly, and this will 
depend on how the objects were imported or created. If the hole slot is 
set as TRUE, the background colour will be shown. Does setting 
usePolypath=TRUE in the plot() call make a difference?

Roger

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Roger Bivand
Economic Geography Section, Department of Economics, Norwegian School of
Economics and Business Administration, Helleveien 30, N-5045 Bergen,
Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43
e-mail: Roger.Bivand at nhh.no