[gradsusr] GrADS no plot if the domain is small and the data do not vary

[Senorluca]

Hello,


when GrADS run a plot on a very small region, if it encounters a change in
value, omit the script settings that indicate what color to use for that
particular value plots and the background color (white or black depending on
"Set Display color black / white. "


 


I am using the files that contain data on cloud cover with values
​​ranging from 0% to 100%


 


These are the settings of values ​​and colors


'set clevs 30 45 60'


'set ccols 4 5 6'


 


I expect that for values ​​around the "100%" uses the color "6"
and the values ​​around the "0%" uses the color "4", GrADS
default colors instead of the png are rendered totally white.


 


In summary, if the latitude and longitude are set very small, and in that
region the value is for example always 100, GrADS renders a pgn with white
background.


 


Have you any idea how to fix it?


 


Luca


 
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