compute a nearby color that can be represented in RGB
color in a format recognized by ColorTools
(optional) equation of the form mode = string, indicating the method used to compute the resulting color
Many colors in the device independent colors spaces, such as CIE Lab, cannot be exactly represented in RGB and displayed on a monitor. The ToDisplayable command computes a nearby color that can be represented in RGB and thus displayed.
A color object that is not exactly displayable will be displayed with asterisks around the color space when the color object is printed.
By default a nearby color is determined by moving along the line towards the 50% gray in the CIE XYZ color space until a displayable color is reached. This can be specified explicitly by specifying the option mode = "XYZ".
Specifying mode = "Lab" will instead move along the line towards the neutral gray point in the CIE Lab color space that has the same L-coordinate as color.
Specifying mode = "HSV" will preserve the hue and truncate the saturation and value coordinates of color in the HSV color space to the range 0..1.
Specifying mode = "RGB" will truncate each of the coordinates of color in the RGB color space to the range 0..1.
Specifying mode = "RGBscale" will represent color in the RGB color space, then add the same minimal positive constant to each coordinate that makes all entries non-negative, and finally, if necessary, divide each coordinate by the maximal coordinate, so that the coordinates are all in the range 0..1.
C ≔ Color⁡0.293,−0.128,0.132
C≔〈*RGB* : 0.293 -0.128 0.132〉
C1 ≔ ToDisplayable⁡C
C1≔〈RGB : 0.31 0 0.172〉
C2 ≔ ToDisplayable⁡C,mode=Lab
C2≔〈RGB : 0.214 0 0.115〉
C3 ≔ ToDisplayable⁡C,mode=HSV
C3≔〈RGB : 0.293 0 0.181〉
C4 ≔ ToDisplayable⁡C,mode=RGB
C4≔〈RGB : 0.293 0 0.132〉
C5 ≔ ToDisplayable⁡C,mode=RGBscale
C5≔〈RGB : 0.421 0 0.26〉
The ColorTools[ToDisplayable] command was introduced in Maple 18.
For more information on Maple 18 changes, see Updates in Maple 18.
Download Help Document
What kind of issue would you like to report? (Optional)