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Re: shading MISSING_VALUE in netcdf data
Hi Boyin,
This question is asked previously in the Users List. See this answer:
http://ferret.pmel.noaa.gov/Ferret/Mail_Archives/fu_2000/msg00031.html
Ansley Manke
Boyin Huang wrote:
> Hi, there:
>
> I tried to shade the area of missing_value (land) in
> netcdf data set, but failed.
>
> It seems to me that the missing value is not
> recognized by ferret as a "number".
>
> assume arr is the SST of a netcdf file and
> missing_value is 1.e20.
> I used the following ferret commands:
>
> let land = if arr1 eq 1.e20 then 1
> shade/nolabel/nokey/over/palette=gray land
>
> No shading at all!
>
> I also tried
> shade/nolabel/nokey/over/palette=gray/lev="(100)
> (1.e20)" arr[d=1]
>
> No shading either. I got the expected contour in both
> cases.
>
> Any comments are welcomed.
>
> =====
> Boyin Huang, Massachusetts Institute of Technology, Room 54-1721, 77 Mass. Ave., Cambridge, MA-02139, bhuang@wind.mit.edu, Tel. 617-253-5935 (O), 781-485-0234(H), fax 617-253-6208
>
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Ansley Manke Pacific Marine Environmental Laboratory Seattle WA (206)526-6246
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