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

[Diane Stokes]

Haibin,

... and if you want to stick with your dummy file, foo.ctl, you can use
the predefined variables "lat" or "lon".  They exist even for dummy data
sets.

'set clevs 999'  (or any out of range value)
'd lat'

     Diane


Mary Jo Nath wrote:
> Haibin,
>
> I don't know if there is a way to suppress the undefined message, but you
> can get just the background if you open a real data file,  then use "set clevs"
> to set a contour value that is  out of range of that data, and then display the variable.
>
> Mary Jo
>
> On Wednesday 07 September 2005 15:58, Haibin Li wrote:
>
>>> 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.
>
>

--
Diane Stokes
Environmental Modeling Center
National Weather Service/NOAA