color gradient - part-cw/lambdanative GitHub Wiki

(color-gradient type value)

color-gradient returns a color based on the gradient type

Parameter Description
type Gradient type: GRADIENT_GRAY, GRADIENT_RAINBOW, GRADIENT_THERMAL or GRADIENT_COPPER
value Index value (0-1)

Example

Example 1: Check the red channel value of a grayscale gradient half way through the spectrum.

> (color-red (color-gradient GRADIENT_GRAY 0.5))
127