[gradsusr] Wrong result when plotting hoop shapes

[Oriol Ciurana]

Hello,

I'm trying to plot shapes around some islands to mark the coasts. I have
created a shapefile with all the shapes but I get a wrong result when
trying to plot a hoop shape around a small island, all the shape is filled
by color, the center of the island too. Only the coast should be filled,
not the island, and I'm wondering if this is a GrADS bug or there is
something that I'm doing in the wrong way. The result is attached in the
mail.

Thanks in advance,

Oriol Ciurana
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