colscale: Returns a color vector from the function 'fun' matching the...

Description Usage Arguments

View source: R/colscale.R

Description

Returns a color vector from the function 'fun' matching the input numeric object 'x', or a sequence of length 'x' from 'start' to 'end' if 'x' is a single integer value (whole number).

Usage

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colscale(x, fun = c("rainbow", "grey", "fade.colorsx", "heat.colors",
  "terrain.colors", "topo.colors", "cm.colors", "combined"), start = 0,
  end = 0.8, h = 1/6, s = 1, v = 1, sc = c(1, 0.3), vc = c(0.7, 1),
  flip = FALSE, bias = 1, space = c("rgb", "Lab"),
  interpolate = c("linear", "spline", "fadewhite", "fadeblack"),
  breakpoint = NULL, alpha = 1, ...)

Arguments

x

is either a numeric object to which colors should be matched, or the length of the color vector.

fun

is a character giving the name of the color function or the color function itself.

start

and 'end' are the start and end colors, given either as values in [0,1], or as color character strings in which case the output colors are interpolated between the given colors as specified by 'interpolate'.

h

is the value hue at the end point of the heat color vector, defaulted to 1/6 to move from red to yellow.

s

is the saturation parameter, only used in rainbowx(), where lower values suppress saturation.

v

is the value parameter, only used in rainbowx(), heat.colorsx(), topo.colorsx(), and cm.colorsx(), where lower values causes darker colors.

sc

is saturation parameter used in combinedx().

vc

is value parameter used in combinedx().

flip

is TRUE if the color vector is to be reversed.

bias

is a parameter used in colorRampPalette().

space

is a parameter used in colorRampPalette().

interpolate

is a parameter used in colorRampPalette().

breakpoint

is the breakpoint of piecewise colors, defaulted in the different function called by colscale().

alpha

is a parameter used in rainbow(), heat.colors(), terrain.colors(), topo.colors() and cm.colors().

...

methods passed on to sub-functions (not used, but allowing for unused arguments).


arnejohannesholmin/cpplot3d documentation built on March 19, 2018, 9:15 a.m.