tweak.colourmap

0th

Percentile

Change Colour Values in a Colour Map

Assign new colour values to some of the entries in a colour map.

Keywords
color, spatial
Usage
tweak.colourmap(m, col, ..., inputs=NULL, range=NULL)
Arguments
m
A colour map (object of class "colourmap").
inputs
Input values to the colour map, to be assigned new colours. Incompatible with range.
range
Numeric vector of length 2 specifying a range of numerical values which should be assigned a new colour. Incompatible with inputs.
col
Replacement colours for the specified inputs or the specified range of values.
...
Other arguments are ignored.
Details

This function changes the colour map m by assigning new colours to each of the input values specified by inputs, or by assigning a single new colour to the range of input values specified by range. The modified colour map is returned.

Value

  • Another colour map (object of class "colourmap").

See Also

colourmap, interp.colourmap, colourtools.

Aliases
  • tweak.colourmap
Examples
co <- colourmap(rainbow(32), range=c(0,1))
  plot(tweak.colourmap(co, inputs=c(0.5, 0.6), "white"))
  plot(tweak.colourmap(co, range=c(0.5,0.6), "white"))
Documentation reproduced from package spatstat, version 1.42-2, License: GPL (>= 2)

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