[ncl-talk] dividing color map to intervals

[Adam Phillips]

Hi Mark,
By default NCL should span the entire colormap range when plotting. If you
want more control of range of colors in the colormap that NCL uses, Instead
of using gsn_define_colormap you could use a combination of
read_colormap_file and the cnFillPalette resource.
See the text at the top of the Color Fill Example page here:
http://www.ncl.ucar.edu/Applications/color.shtml

If you have any further questions please respond to the ncl-talk email list.
Adam



On Thu, Nov 21, 2019 at 8:11 PM M P via ncl-talk <ncl-talk at ucar.edu> wrote:

> Hello,
> I define a colormap as
>
> gsn_define_colormap(wks,"WhiteBlueGreenYellowRed")
>
> I want to divide it into e.g. 20 equal intervals so I can plot data in
> different ranges
> with different colors.
>
> Can you help how to e.g. create an array colors[i] that would span the
> whole range? Or there is another way to do it?
>
> Thanks,
> Mark
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-- 
Adam Phillips
Associate Scientist,  Climate and Global Dynamics Laboratory, NCAR
www.cgd.ucar.edu/staff/asphilli/   303-497-1726

<http://www.cgd.ucar.edu/staff/asphilli>
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