[ncl-talk] Can't make that color bar show white

[Barry Lynn]

Hi Mary:

Thank you for the suggestions and tip..

I was probably running 6.3, although I have 6.4 installed.

I will add the line you mentioned.

Barry

On Thu, Jun 7, 2018 at 5:35 PM, Mary Haley <haley at ucar.edu> wrote:

> Hi Barry,
>
> I can't run your code because I don't have this file:
>
> /data7/wrf/01052018/RUN/wrfout_d01_2018-01-05_00:00:00
>
> ​It does look like you are defining the colormap correctly.
>
> Here's a tip: If you want to see what a color map looks like, especially
> after you've modified it, use the "draw_color_palette" procedure.  Here's a
> 5-line code that illustrates it:​
>
> wks = gsn_open_wks("x11","test")
> cmap := read_colormap_file("NCV_rainbow2")
> cmap := cmap(50:, :)
> cmap(0,:) = 1.   ; Make first color white
>
> draw_color_palette(wks,cmap,0)
>
> W
> ​hat version of NCL are you running?  I used some dummy WRF data in your
> script which didn't work well because I don't have the correct domain, but
> I did get a labelbar with white on the left if I used NCL V6.4.0. With
> version 6.3.0, I had to set:
>
> res1 at gsnSpreadColorStart = 0
>
> --Mary
>
>
> On Wed, Jun 6, 2018 at 9:46 AM, Barry Lynn <barry.h.lynn at gmail.com> wrote:
>
>> Hi:
>>
>> If you run this program, you'll see that it is a dark blue on the far
>> left hand side.  Yet, I set cmap(0,:) = 1.
>>
>> I am hoping someone can tell me how to truly get the left interval on the
>> color bar to show white.
>>
>> Thanks.
>>
>> --
>> Barry H. Lynn, Ph.D
>> Senior Lecturer,
>> The Institute of the Earth Science,
>> The Hebrew University of Jerusalem,
>> Givat Ram, Jerusalem 91904, Israel
>> Tel: 972 547 231 170
>> Fax: (972)-25662581
>>
>> C.E.O, Weather It Is, LTD
>> Weather and Climate Focus
>> http://weather-it-is.com
>> Jerusalem, Israel
>> Local: 02 930 9525
>> Cell: 054 7 231 170
>> Int-IS: x972 2 930 9525
>> US 914 432 3108
>>
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>>
>


-- 
Barry H. Lynn, Ph.D
Senior Lecturer,
The Institute of the Earth Science,
The Hebrew University of Jerusalem,
Givat Ram, Jerusalem 91904, Israel
Tel: 972 547 231 170
Fax: (972)-25662581

C.E.O, Weather It Is, LTD
Weather and Climate Focus
http://weather-it-is.com
Jerusalem, Israel
Local: 02 930 9525
Cell: 054 7 231 170
Int-IS: x972 2 930 9525
US 914 432 3108
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