blue-pink-yellow color scheme that prints well on black/white printers
Create a vector of `n' ``contiguous'' colors.
bpy.colors(n = 100, cutoff.tails = 0.1, alpha = 1.0)
- number of colors (>= 1) to be in the palette
- tail fraction to be cut off on each side. If 0, this palette runs from black to white; by cutting off the tails, it runs from blue to yellow, which looks nicer.
- numeric; alpha transparency, 0 is fully transparent, 1 is opaque.
- A character vector, `cv', of color names. This can be used either to create a user-defined color palette for subsequent graphics by `palette(cv)', a `col=' specification in graphics functions or in `par'.
This color map prints well on black-and-white printers.
bpy.colors(10) p <- expand.grid(x=1:30,y=1:30) p$z <- p$x + p$y coordinates(p) <- c("x", "y") gridded(p) <- TRUE image(p, col = bpy.colors(100), asp = 1) # require(lattice) # trellis.par.set("regions", list(col=bpy.colors())) # make this default pallette
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