Re: please help with color bar

Hi Hongyan,
lbBoxLineColor = "white"

http://www.ncl.ucar.edu/Document/Graphics/Resources/lb.shtml#lbBoxLineColor

I'm not sure if transparent will work, but you can give it a shot by
setting the above resource to "transparent" or -1 ...
Adam

On 08/16/2011 01:34 PM, H.Dang wrote:
> Hi Adam,
>
> Thanks for your help. Finally I got one in the attachment. Could you
> also please tell me how to make the black lines between the colors
> transparent or white? Thanks again.
>
> Hongyan
> On Tue, Aug 16, 2011 at 11:46 AM, Adam Phillips <asphilli@ucar.edu
> <mailto:asphilli@ucar.edu>> wrote:
>
> Hi Hongyan,
> No, there is no automatic way to do this. If you want to use all 200
> colors from the BlAqGrYeOrReVi200 colormap, and you want the middle
> color
> (representing -.01:.01) to be white, you will have to set that up
> manually:
>
> colors = new(201,integer)
> colors(:99) = ispan(2,101,1)
> colors(100) = 0 ; or -1 if you truly want transparent
> colors(101:) = ispan(102,201,1)
> res@cnFillColors = colors
>
> You would also have to set cnLevels explicitly to whatever you'd like.
> Finally, if you truly want to use all 200 colors in your labelbar,
> you're
> probably going to want to set lbLabelStride = 10 (or somewhere > 10), as
> this will reduce the number of label bar labels to every 10th label...
> Hope that helps.. Adam
>
> > Hi dear all,
> >
> > My current color bar is like the attachment. The NCL code I'm
> using is:
> >
> > gsn_define_colormap(wks,"BlAqGrYeOrReVi200")
> > res = True
> > res@mpFillOn = False ;
> > turn map fill off
> > res@mpOutlineOn = True ;
> > turn the map outline on
> > res@cnLevelSelectionMode = "ExplicitLevels" ;
> > set explicit contour levels
> > res@cnFillOn = True ;
> > turn on color fill
> > res@cnLinesOn = False ;
> > turn off the contour lines
> > res@cnLevels = (/ -5., -1, -0.01, 0.01,1, 5, 10, 15.,20, 25, 30, 35,
> > 40, 45, 50/) ; set levels
> > res@cnFillColors =
> > (/2,16,31,0,56,63,75,84,96,106,115,127,139,150,165,175,191,201/)
> ; set the
> > colors to be used
> >
> > My question is if I can use as many as possible colors, say all
> the color
> > in
> > "BlAqGrYeOrReVi200", and keep the -0.01 and 0.01 labels in the
> color bar,
> > the others can be automatically generated. Since the transparent
> color
> > (white) between -0.01~0.01 is very important for me, I must keep
> them.
> > Appreciate your help!
> >
> > Have a good day.
> > --
> > Cordially,
> > Hongyan(鸿雁)
> > Tel: 1-519-8884567ext36667 <tel:1-519-8884567ext36667>
> > _______________________________________________
> > ncl-talk mailing list
> > List instructions, subscriber options, unsubscribe:
> > http://mailman.ucar.edu/mailman/listinfo/ncl-talk
> >
>
>
> __________________________________________________
> Adam Phillips asphilli@ucar.edu <mailto:asphilli@ucar.edu>
> NCAR/Climate and Global Dynamics Division
> P.O. Box 3000 (303) 497-1726 <tel:%28303%29%20497-1726>
> Boulder, CO 80307-3000
> http://www.cgd.ucar.edu/cas/asphilli
>
>
>
>
> --
> Cordially,
> Hongyan(鸿雁)
> Tel: 1-519-8884567ext36667
>
>
>
>
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> ncl-talk mailing list
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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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