Re: [Gnuplot-info] Nonlinear color bar question

[Philipp K. J. <ph...@ja...>]

On Wed, 22 Apr 2026 14:43:17 +0000
Patrick Alken via gnuplot-info <gnu...@li...>
wrote:

For gradients:

set palette defined ( 0 "red", 0.1 "white", 1 "blue" )

For sharp transitions, double the position param:

set palette defined ( 0 "red", 0.1 "red", 0.1 "white", 0.2 "white", 0.2
"blue", 1 "blue" )

Either way:

plot "data" u 1:2:3 lc pal

Also check: 

test palette

Note: The positions w/in "set palette" are
relative, they do not (automatically) 
correspond to values from the plot range.

Also consider: 

set cbrange

Best,

		Ph.

> Hello,
> 
>   I am struggling to make a plot with a nonlinear color bar. I want
> the colors themselves to be nonlinear rather than the tic marks. My
> detailed question is here:
> 
> https://stackoverflow.com/questions/79929626/how-to-make-a-nonlinear-color-bar
> 
> Any help is appreciated,
> Patrick
> 
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-- 

Philipp K. Janert
www.janert.me