Lattice visualization demonstrating subtractive mixtures of colors in Munsell notation and associated spectra.
vector of colors in Munsell notation, should not contain duplicates
vector of weights, can sum to any number
approach used to simulate a mixture:
reference
: simulate a subtractive mixture of pigments, selecting n
closest reference spectra
exact
: simulate a subtractive mixture of pigments, color conversion via CIE1931 color-matching functions (see mixMunsell
)
number of closest mixture candidates when mixingMethod = 'reference'
(see mixMunsell
), results can be hard to interpret when n > 2
scaling factor for color swatch
scaling factor for swatch labels
show weighted geometric mean (mixed) spectra as dotted line (only when mixingMethod = 'reference'
)
attempt to "fix" overlapping chip labels via fixOverlap
a lattice
graphics object
If present, names
attribute of x
is used for the figure legend.
# color chips
chips <- c('5B 5/10', '5Y 8/8')
names(chips) <- chips
# weights
wt <- c(1, 1)
plotColorMixture(
x = chips,
w = wt,
swatch.cex = 4,
label.cex = 0.65,
showMixedSpec = TRUE,
mixingMethod = 'reference'
)
plotColorMixture(
x = chips,
w = wt,
swatch.cex = 4,
label.cex = 0.65,
mixingMethod = 'exact'
)