tweak.colourmap

From spatstat v1.34-1 by Adrian Baddeley

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").

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 1.34-1, License: GPL (>= 2)

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