photobiology (version 0.9.6)

color: Color of an object

Description

A function that returns the equivalent RGB color of an object such as a spectrum or wavelength.

Usage

color(x, ...)

## S3 method for class 'default':
color(x, ...)

## S3 method for class 'numeric':
color(x, type = "CMF", ...)

## S3 method for class 'list':
color(x, short.names = TRUE, type = "CMF", ...)

## S3 method for class 'waveband':
color(x, short.names = TRUE, type = "CMF", ...)

## S3 method for class 'source_spct':
color(x, type = "CMF", ...)

## S3 method for class 'source_mspct':
color(x, ..., idx = !is.null(names(x)))

Arguments

x

an R object

...

not used in current version

type

character telling whether "CMF", "CC", or "both" should be returned.

short.names

logical indicating whether to use short or long names for wavebands

idx

logical whether to add a column with the names of the elements of spct

Methods (by class)

• default: Default method (returns always "black").
• numeric: Method that returns Color definitions corresponding to numeric values representing a wavelengths in nm.
• list: Method that returns Color of elements in a list.
• waveband: Color at midpoint of awavebandobject.
• source_spct:
• source_mspct:

Examples

wavelengths <- c(300, 420, 500, 600, NA) # nanometres
color(wavelengths)
color(waveband(c(300,400)))
color(list(blue = waveband(c(400,480)), red = waveband(c(600,700))))
color(numeric())
color(NA_real_)

color(sun.spct)