How to suppress the warning info "entire grid undefined" in GrADS

Wed Sep 7 15:58:57 EDT 2005

Hi there, 
Is there anyway to suppress the warning information "entire grid undefined" 
in GrADS? 
What I need is just the background world map, not any real data fields. But 
to plot a world map background, I have to display something first. So I 
created a foo.ctl file. Apparently, if I display dummy variable in the 
control file, I got "entire grid undefined". I guess there must be other 
ways to circumvent this problem. 
Thanks for your help.

 Yours,
Haibin
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Haibin Li
Department of Environmental Sciences
Rutgers University
14 College Farm Rd
New Brunswick, NJ, 08901-8551
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