Wavelength-to-Color Scale for Spectral Plots

Maps wavelength values to approximate visible light colors for spectral line coloring. Returns a ggplot2 continuous color scale.

Usage

scale_color_wavelength(...)

scale_colour_wavelength(...)

Arguments

...

Additional arguments passed to ggplot2::scale_color_gradientn().

Value

A ggplot2::Scale object.

Examples

cube <- hs_example_cube()
library(ggplot2)
df <- data.frame(
  wavelength = cube$wavelengths,
  value = cube$data[15, 15, ]
)
ggplot(df, aes(wavelength, value, color = wavelength)) +
  geom_line() +
  scale_color_wavelength()