[ncl-talk] a question on masking missing values using grey shading or hatch in time-longitude section

[Mary Haley]

Dear Hui Ding,

Try these resources:

  res1 at cnMissingValPerimOn     = True             ; turn on perimeter

  res1 at cnMissingValFillPattern = 16               ; choose a fill pattern

  res1 at cnMissingValFillColor   = "gray"          ; choose a pattern color

You can see the various fill patterns at:

http://www.ncl.ucar.edu/Document/Graphics/Images/fillpatterns.png

If you set the fill pattern to 0, which is the default, then you just get a
solid color fill.

--Mary



On Wed, Mar 15, 2017 at 6:02 PM, Hui Ding <hding101 at googlemail.com> wrote:

> Dear Sir or Madam,
>  I plotted a longitude-time figure. Please see the attached figure. While
> area in the figure is due to missing values in continent. Could you please
> show me how to mask the while areas using grey shading or hatch?
>
> I also attach my NCL script and input data. Thank you very much!
> Best,
> Hui Ding
>
>
>
>
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