Re: retrieve named colors

Thanks Adam, I knew there was user error involved. The cnMonoLineColor =
False was my hangup.
Thanks too Saji!
jimmyc

On Thu, Sep 22, 2011 at 11:05 AM, Adam Phillips <asphilli@ucar.edu> wrote:

> Hi Jimmy,
> The numbers are directly associated with the colormap. I see that you
> are merging your colors array with the radar color map. In that case,
> your colors will map like this:
> 0 = white
> 1 = black
> 2 = white
> 3 = blue
> 4 = first color in radar colormap, = "light blue"
> 5 = second color in radar colormap, = "medium blue"
> ....
> 18 = 2nd to last color in radar colormap, = light purple
> 19 = last color in radar colormap, = white
> http://www.ncl.ucar.edu/Document/Graphics/ColorTables/radar.shtml
>
> Looking at the documentation of cnLineColors:
> http://www.ncl.ucar.edu/Document/Graphics/Resources/cn.shtml#cnLineColors
>
> you also need to set cnMonoLineColor = False if you're coloring each
> contour differently.
>
> for example:
>
> colors=(/"white","black","white","blue"/)
> gsn_merge_colormaps(wks,colors,"radar")
> <snip>
> res@cnLevelSelectionMode = "ExplicitLevels"
> res@cnLevels = ispan(1,5,1)
> res@cnMonoLineColor = False
> res@cnLineColors = (/4,11,12,13,14/) ; color your contours light
> ; blue, green,yellow,orange,red
> Adam
>
> On 09/22/2011 09:38 AM, James Correia wrote:
> > Hi Saji-
> > I didn't have any luck with that resource.
> >
> > In the example, the colors are specified with numbers. Are those numbers
> > directly associated with the colors from the colormap (eg Where 0 is the
> > first color in that colormap, or does it refer to the color "0"?)
> >
> > jimmyc
> >
> >
> > On Wed, Sep 21, 2011 at 3:16 PM, Saji Hameed <saji.nh@gmail.com
> > <mailto:saji.nh@gmail.com>> wrote:
> >
> > Hi James,
> >
> > You should use cnLineColors
> >
> http://www.ncl.ucar.edu/Document/Graphics/Resources/cn.shtml#cnFillColors
> >
> > See the example below that explicitly assigns color levels for each
> > contour.
> > http://www.ncl.ucar.edu/Applications/Scripts/conLev_3.ncl
> >
> > saji
> >
> > On Thu, Sep 22, 2011 at 4:35 AM, James Correia <jimmyc42@gmail.com
> > <mailto:jimmyc42@gmail.com>> wrote:
> > > Hi-
> > > I am trying to use the existing colors in my colormap to color
> > specific
> > > contours in my contour plot. How do I assign the value for col(q)
> > in the
> > > example below? Or should I be using the gsnSpreadColorStart (and
> > End) to use
> > > the different colors individually for each specific contour?
> > >
> > > colors=(/"white","black","white","blue"/)
> > > gsn_merge_colormaps(wks,colors,"radar")
> > >
> > > res@cnLineColor = col(q)
> > >
> > > --
> > >
> > > James Correia Jr.
> > > OU CIMMS Research Associate
> > > SPC HWT Liaison
> > >
> > > "The highest function of the teacher consists not so much in
> > imparting
> > > knowledge as in stimulating the pupil in its love and pursuit. To
> > know how
> > > to suggest is the art of teaching."
> > >
> > >
> >
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> > > the National Weather Service, or the University of Oklahoma.
> > >
> >
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> >
> > --
> >
> > James Correia Jr.
> > OU CIMMS Research Associate
> > SPC HWT Liaison
> >
> > "The highest function of the teacher consists not so much in imparting
> > knowledge as in stimulating the pupil in its love and pursuit. To know
> > how to suggest is the art of teaching."
> >
> >
> ------------------------------------------------------------------------------------------
> > The views expressed in this email do not necessarily reflect those of
> > NOAA, the National Weather Service, or the University of Oklahoma.
> >
> ------------------------------------------------------------------------------------------
> >
> >
> >
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> --
> ______________________________________________________________
> Adam Phillips asphilli@ucar.edu
> NCAR/Climate and Global Dynamics Division (303) 497-1726
> P.O. Box 3000
> Boulder, CO 80307-3000 http://www.cgd.ucar.edu/cas/asphilli
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-- 
James Correia Jr.
OU CIMMS Research Associate
SPC HWT Liaison
"The highest function of the teacher consists not so much in imparting
knowledge as in stimulating the pupil in its love and pursuit. To know how
to suggest is the art of teaching."
------------------------------------------------------------------------------------------
The views expressed in this email do not necessarily reflect those of NOAA,
the National Weather Service, or the University of Oklahoma.
------------------------------------------------------------------------------------------

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Received on Thu Sep 22 12:08:53 2011