Re: [Gnuplot-info] color string

[Thomas S. <t.s...@fz...>]

gnuplot> col(r, g, b) = sprintf('#%X%X%X', r, g, b)
gnuplot> print col(255, 23.4, 255) 
#FF17FF
gnuplot> plot sin(x) w l lc rgb col(255, 23.4, 255) 

works
'sprintf' returns a string, you don't have to enclose it in quotes.


renzresearch wrote:
> 
> Why can't I do this?  How can I fix it?  Thank you.
> 
> Zhong
> 
> 
> 
> gnuplot> col(r, g, b) = sprintf('"#%X%X%X"', r, g, b)
> gnuplot> print col(255, 23.4, 255)
> "#FF17FF"
> gnuplot> plot sin(x) w l lc rgb col(255, 23.4, 255)
>                                                    ^
>          expected a known color name or a string of form "#RRGGBB"
> 
> 
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