Change Colour Values in a Colour Map
Assign new colour values to some of the entries in a colour map.
tweak.colourmap(m, col, ..., inputs=NULL, range=NULL)
m |
A colour map (object of class |
inputs |
Input values to the colour map, to be assigned new colours.
Incompatible with |
range |
Numeric vector of length 2 specifying a range of numerical values
which should be assigned a new colour.
Incompatible with |
col |
Replacement colours for the specified |
... |
Other arguments are ignored. |
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.
Another colour map (object of class "colourmap").
Adrian Baddeley Adrian.Baddeley@curtin.edu.au, Rolf Turner r.turner@auckland.ac.nz and Ege Rubak rubak@math.aau.dk.
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"))
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