color-blue

color-green

color-red

color-hue

color-saturation

color-value Functions

Summary

Returns the associated component of a color specification.

Package

color

Signatures

color-blue color-spec => color-component

color-green color-spec => color-component

color-red color-spec => color-component

color-hue color-spec => color-component

color-saturation color-spec => color-component

color-value color-spec => color-component

Arguments

color-spec⇩

A color specification.

Values

color-component

A color component from the appropriate color model.

Description

These functions return the specified component of color-spec.

If color-spec is not from the appropriate color model (:rgb in the case of color-red, color-green and color-blue, and :hsv in the case of color-hue, color-saturation and color-value) then the component is calculated.

Examples

CL-USER 31 > (color:make-rgb 1.0s0 0.0s0 0.0s0)
#(:RGB 1.0S0 0.0S0 0.0S0)
 
CL-USER 32 > (color:color-red *)
1.0S0
 
CL-USER 33 > (color:color-green **)
0.0S0
 
CL-USER 34 > (color:color-value ***)
1.0S0
 
CL-USER 35 >