rgb2hex | R Documentation |
Convert an RGB color to '#RRGGBB' representation.
Useful e.g. to use a mixed color (as mixed by the mixcolor
function) as a color in calls to raw graphics function. See examples.
see https://gist.github.com/mbannert/e9fcfa86de3b06068c83
rgb2hex(r, g = NULL,
b = NULL)
r |
red color component, or a column 3-element vector of R,G,B values, or an object of class 'RGB' |
g |
optional green color component |
b |
optional blue color component |
Tomas Sieger
require(colorspace)
col1<-RGB(t(col2rgb('yellow')))
col2<-RGB(t(col2rgb('black')))
mixCol<-mixcolor(.3,col1,col2)
col<-rgb2hex(mixCol)
plot(c(0,1,2),c(0,0,0),xlim=c(-.5,2.5),ty='p',pch=21,cex=15,col='black',
bg=c('yellow',col,'black'),frame=FALSE,xlab='',ylab='',xaxt='n',yaxt='n')
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