Re: @gsFillOpacityF does not work

From: Mary Haley <haley_at_nyahnyahspammersnyahnyah>
Date: Tue Feb 26 2013 - 15:51:41 MST

Dear Hongyan,

Not too long ago I implemented a gsnXYFillOpacities resources, but I didn't get around to putting it in V6.1.2.
See example newcolor_16.ncl at:

http://www.ncl.ucar.edu/Applications/rgbacolor.shtml#ex16

To get the code necessary for using this resource, see this posting:

http://www.ncl.ucar.edu/Support/talk_archives/2012/1940.html

The "fill.ncl" script is the main code, and the "gsn_csm_xy_mod.ncl" is the script
you need to load that modifies gsn_csm_xy to recognize this resource.

It will be available in V6.2.0.

--Mary

On Feb 26, 2013, at 3:38 PM, Rick Brownrigg wrote:

> What about trying the following:
>
> rgba = new( (/1,4/), float)
> rgba(:,0:2) = namedcolor2rgb("cornflowerblue") ; note lack of space in name!
> rgba(:,3) = 0.5
> res@gsnXYFillColors = rgba(0,:) ; or possibly just " = rgba"
>
> Untested, but it might get you what you need -- please let us know.
>
> Rick
>
> On Feb 26, 2013, at 3:01 PM, "H.Dang" <danghy@gmail.com> wrote:
>
>> Hi dear NCL'er,
>>
>> I wanted to add shades besides the blue curve on the graph "Resolute_line.png" (please see attached). The way I plot this graph is through:
>>
>> data = new((/2,35/),float, -999.)
>> data(0,:) = ozone_season
>> data(1,:) = model_ozone_season
>> plot=gsn_csm_xy(wks,data,pressure_sonde,res)
>>
>> When I tried to add shades, I added the following code:
>>
>> data_stddev = new((/2,35/),"float",-999.)
>> data_stddev(0,:) = ozone_season - 5
>> data_stddev(1,:) = ozone_season + 5
>> delete(res@gsnXYFillColors)
>> delete(res@xyLineColors)
>> res@gsnXYFillColors = "cornflower blue"
>> res@gsFillOpacityF = 0.5
>> res@xyLineColor = -1 ; We don't want the line, so make it transparent.
>> std_plot = gsn_csm_xy(wks,data_stddev(0:1,:),pressure_sonde,res) ; Create filled XY plot.
>> overlay(std_plot,plot)
>>
>> But res@gsFillOpacityF doesn't work for me, so the blue curve in Resolute_line.png is totally covered by shades (please see attached Resolute_shade.png). The warning message is:
>>
>> warning:gsFillOpacityF is not a valid resource in /Fall_SON_modelEY_ozonesonde024_Resolute_xy at this time.
>>
>> The version of NCL that I'm using is 6.1.0-beta. Is there a way to add the blue line on the shade in this version? Thank you!
>>
>> Hongyan
>> <Resolute_line.png><Resolute_shade.png>_______________________________________________
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Received on Tue Feb 26 15:51:51 2013

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