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

In arnejohannesholmin/cpplot3d: 3D-plotting and segmentation of sonar data

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).

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

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 April 14, 2024, 11:36 p.m.