Re: Setting Mexico data to _FillValue

Hi Eric,

Dennis mentioned a way you might do this via calculations.

If all you are concerned about is not plotting the areas over the
ocean, Canada, and Mexico, then you can accomplish this by doing
graphical masking.

See example 4 at:

   http://www.ncl.ucar.edu/Applications/mask.shtml

Also see attached script that shows the first frame with no masking,
and the second with. It's a goofy looking plot, but I was in a
hurry. :-)

--Mary

On Thu, 28 May 2009, Eric D. Robinson wrote:

> I have data that covers most of CONUS and part of the ocean, Canada, and
> Mexico. I would like to set all the data that is not over the CONUS to
> _FillValue. but I can't find an efficient way to do this. I know I can
> set the ocean data to _FillValue with the mask function since I have the
> land/sea mask, but I do not have a similar data set for political
> boundaries. Any suggestions would be appreciated. Thanks!
>
> -Eric
>
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