aqp: colorContrastPlot – R documentation

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aqp

colorContrastPlot

Color Contrast Plot

Description

A simple display of two sets of colors, NCSS color contrast class and CIE delta-E00.

Usage

colorContrastPlot(
  m1,
  m2,
  col.cex = 1,
  col.font = 2,
  d.cex = 1,
  cc.font = 3,
  dE00.font = 1,
  labels = c("m1", "m2"),
  label.cex = 1,
  label.font = 1,
  printMetrics = TRUE,
  ...
)

Arguments

`m1`	first set of Munsell colors for comparison (e.g. '5YR 3/2')
`m2`	second set of Munsell colors for comparison
`col.cex`	scaling factor for color labels
`col.font`	font for color labels
`d.cex`	contrast for contrast metric labels
`cc.font`	font for contrast class
`dE00.font`	font for delta-E00
`labels`	labels for compared colors, vector length 2
`label.cex`	scaling factor for labels
`label.font`	font for labels
`printMetrics`	logical, print metrics between color swatches
`...`	further arguments to `colorspace::swatchplot`

Details

This function requires the farver package for calculation of CIE delta-E00

Author(s)

D.E. Beaudette

Examples

# two sets of colors to compare
m1 <- c('10YR 6/3', '7.5YR 3/3', '10YR 2/2', '7.5YR 3/4')
m2 <- c('5YR 3/4', '7.5YR 4/4', '2.5YR 2/2', '7.5YR 6/3')

# contrast metrics
colorContrast(m1, m2)

# graphical display
colorContrastPlot(m1, m2)

aqp

Algorithms for Quantitative Pedology

v1.29

GPL (>= 3)

Authors

Dylan Beaudette [aut, cre], Pierre Roudier [aut, ctb], Andrew Brown [aut, ctb]

Initial release

2021-04-05