How do I fill in colours over land areas?

To: <visad-list@xxxxxxxxxxxxx>
Subject: How do I fill in colours over land areas?
From: "John Low" <crslkkj@xxxxxxxxxx>
Date: Fri, 25 Oct 2002 18:24:58 +0800

Hi,
I used Gridded2DSet to draw a map coastline on the display.  This worked fine. 
How do you now fill the inner region with a colour? I will appreciate if you 
can provide a little code.
Thanks in advance.

John Low

Follow-Ups:
- Re: How do I fill in colours over land areas?
  - From: Bill Hibbard