Hi All, I'm trying trying to draw a colour wheel (a slice of hcl space) in R. Running the code below doesn't give me what I expect - there's some oddly bright colours of the wrong hue around c(0, 0) and I see three coloured circles (a small magenta, a medium sized yellow and a large cyan). Am I doing something wrong or is there a bug in the hcl code?
(Also any suggestions for generating a more evenly spaced grid of colours would be greatly appreciated) Regards, Hadley hcl <- expand.grid(h = seq(0, 360, by = 2), c = 70, l = seq(0, 100, by = 2), fixup=FALSE) hcl <- transform(hcl, angle = h * pi / 180, radius = l / 100 ) hcl <- transform(hcl, x = radius * sin(angle), y = radius * cos(angle) ) hcl$colour <- hcl(hcl$h, hcl$c, hcl$l) with(hcl, plot(x, y, col=colour, pch=20)) -- http://had.co.nz/ ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
