[ncl-talk] About specify color of specific places, when do contour plotting

Tao Lu hakufu.asano at gmail.com
Mon Jan 16 20:32:46 MST 2017


Dear Mary

Thank you for your reply.
It helps a lot.

If I have two kinds of missing data, is it possible to show different color for two kinds of missing data?

Tao

> El 17 ene 2017, a las 7:21, Mary Haley <haley at ucar.edu> escribió:
> 
> If you simply mean how to fill your missing data values in black, then try:
> 
>   res at cnMissingValFillColor = "black"
> 
> Your data_rain_integer variable must have _FillValue set to whatever the missing values are, in order for this to work.
> 
> 
> 
> --Mary
> 
> 
> 
> 
>> On Sun, Jan 15, 2017 at 2:18 AM, Tao Lu <hakufu.asano at gmail.com> wrote:
>> Dear ncl-talk
>> 
>> I have some data like this:
>> about rain density 0.0 ~ 409.0 mm/h step 0.1 mm/h
>> integer number rain density
>> 0 0.1 mm/h less then
>> 1 0.1 mm/h
>> 2 0.3 mm/h
>>   .
>>   .
>> 4089 409.0 mm/h
>> 4090 409.0 mm/h more then
>> 4091 out of the obsevation region
>> 4092 not observed
>> 
>> I define rain density in this way:
>>     if data_rain_integer == 4090:
>>         rain_density = 500
>>     elif data_rain_integer == 4091:
>>         rain_density = -1000
>>     elif data_rain_integer == 4092:
>>         rain_density = -999
>>     else:
>>         rain_density = data_rain_integer*0.1
>> 
>> Do you know how to specify not observed data as black color when I plot rain density contour?
>> 
>> Yours sincerely,
>> Tao
>> 
>> 
>> -- 
>> ******************************************************
>> 盧 涛 (ル タオ) 修士課程2年
>> 〒112-8551 東京都文京区春日1-13-27
>> 中央大学理工学研究科都市環境学専攻
>> 河川・水文研究室(山田正教授)
>> 
>> TEL: 03-3817-3406;   Phone: 070-2188-7509
>> Email1: hakufu.asano at gmail.com
>> Email2: lutao at civil.chuo-u.ac.jp
>> *******************************************************
>> ******************************************************
>> Tao Lu    (M. Eng)
>> Laboratory of River Engineering and Hydrology,
>> Dept. of Civil and Environmental Engineering,
>> Graduate School of Science and Engineering,
>> Chuo University
>>  
>> 1-13-27,Kasuga,Bunkyo-ku,Tokyo
>> 112-8551, Japan
>> TEL: 03-3817-1805;   Phone: 070-2188-7509
>> Email1: hakufu.asano at gmail.com
>> Email2: lutao at civil.chuo-u.ac.jp
>> *****************************************************
>> 
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