intpalette: color palettes

In shape: Functions for Plotting Graphical Shapes, Colors

Description

Returns color(s) that are a linear interpolation of a given set of colors.

Usage

intpalette(inputcol, numcol = length(x.to), x.from = NULL, x.to = NULL)

Arguments

inputcol	initial colors, *from* where to interpolate.
numcol	number of colors to interpolate *to*.
x.from	x-values *from* where to interpolate.
x.to	x-values where to interpolate *to*.

Details

Return value is a vector of *colors* in hexadecimal format.

This is different from colorRamp(R function), that returns a *function*

Value

a vector of character strings giving the interpolated colors in hexadecimal format

Author(s)

Karline Soetaert <[e-mail]>

See Also

greycol, femmecol, shadepalette, colorRamp for comparable R function

Examples

intpalette(c("white", "black"), n = 10)
grey(seq(1, 0, length.out = 10))
image(matrix(nrow = 1,ncol = 100, data = 1:100),
      col = intpalette(c("red", "blue"), numcol = 100),
      main = "intpalette")
image(matrix(nrow = 1, ncol = 100, data = 1:100),
      col = intpalette(c("red", "blue", "yellow"), numcol = 100),
      main = "intpalette")

Example output

 [1] "#FFFFFF" "#E3E3E3" "#C6C6C6" "#AAAAAA" "#8E8E8E" "#717171" "#555555"
 [8] "#393939" "#1C1C1C" "#000000"
 [1] "#FFFFFF" "#E3E3E3" "#C6C6C6" "#AAAAAA" "#8E8E8E" "#717171" "#555555"
 [8] "#393939" "#1C1C1C" "#000000"

shape documentation built on May 19, 2021, 9:09 a.m.