color_chart: Create a color checker chart

In ggspectra: Extensions to 'ggplot2' for Radiation Spectra

Create a color checker chart

Description

Color-checker-chart ggplot labelled with color names or with indexes of the colors in the vector passed as first argument.

Usage

color_chart(
  colors = grDevices::colors(),
  ncol = NULL,
  use.names = NULL,
  text.size = 2,
  text.color = NULL,
  grid.color = "white"
)

Arguments

colors	character A vector of color definitions.
ncol	integer Number of column in the checker grid.
use.names	logical Force use of names or indexes.
text.size	numeric Size of the text labels drawn on each color tile.
text.color	character Color definition, used for text on tiles.
grid.color	character Color definition, used for grid lines between tiles.

Note

Default text.color uses black_or_white() to ensure enough contrast. Default for use.names depends on number of columns in the grid, indexes are used when columns are seven or more.

Examples

color_chart()
color_chart(grep("dark", colors(), value = TRUE), text.size = 3.5)

ggspectra documentation built on Oct. 22, 2023, 1:07 a.m.