[gradsusr] Shaded plot only for values above a minmum

[Thomas Robinson]

Thank you Jeff.  I actually have a plot of terrain, and I would like to
plot 'var' on top of that with the terrain in the background.  So I really
want to make a shaded plot overlaid on a shaded plot.  Just using a
background value won't work for that.  It there any way to just eliminate
the lower values?


On Fri, Feb 28, 2014 at 1:13 PM, Jeff Duda <jeffduda319 at gmail.com> wrote:

> use the ccols command to manually set the color levels.  If you have N
> contour values, you need N+1 colors, the first one in the list is the color
> corresponding to values below the lowest contour.  Set that to 0
> (background), so that it will appear not to color values below your minimum
> contour value.  See the controlling colors<http://www.iges.org/grads/gadoc/colorcontrol.html> section
> of the documentation index for more information.
>
> Jeff Duda
>
>
> On Fri, Feb 28, 2014 at 4:58 PM, Thomas Robinson <ter at hawaii.edu> wrote:
>
>> Aloha Grads Users,
>>
>> I am trying to make a shaded plot where values only show up if they are
>> greater than 9.  So I do:
>>
>> set clevs 9 10 11 12 13 14 15
>> d val
>> cbarn
>>
>> That works great, but it fills in purple (default) for everything below 9
>> which is most of the plot.  Is there a way to turn off coloring in the
>> areas below 9?
>>
>> Thanks,
>> Tom
>>
>> --
>> Tom Robinson
>> President - Graduate Student Organization
>> Chair - Student Athletic Fee Committee
>> Graduate Student - Department of Meteorology
>>
>>
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>>
>>
>
>
> --
> Jeff Duda
> Graduate research assistant
> University of Oklahoma School of Meteorology
> Center for Analysis and Prediction of Storms
>
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>
>


-- 
Tom Robinson
President - Graduate Student Organization
Chair - Student Athletic Fee Committee
Graduate Student - Department of Meteorology
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