tweak.colourmap {spatstat.geom}

Change Colour Values in a Colour Map

Description

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

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").

Author(s)

Adrian Baddeley [e-mail], Rolf Turner [e-mail] and Ege Rubak [e-mail].

See Also

colourmap, interp.colourmap, colouroutputs, colourtools.

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"))