wheel

Get an RGB color by picking a color wheel position.

rgb.wheel(99)

A color wheel is a way choosing a color by thinking that all the different colors have a place somewhere around a wheel. The wheel has 255 spots all around it. Each spot is a different color. The numbers start at 0 on the top of the wheel and go around clockwise to the top again where 225 sits next to 0 on the top.

On the top of the wheel, 0 is light blue and next to it 255 which is also light blue. One-third the distance down the wheel on the right side is the purple color at 85. The color yellow is two-thirds the distance around the wheel at 170. All the other colors have there own place on the wheel somewhere in-between these colors.

Parameters

• wheelPos: a number which is a position on the RGB color wheel. This is a number between 0 and 255.

Returns

• an RGB color value for the color at the color wheel position.

Example

Get the yellow RGB color from it’s color wheel position. If it the color matches the built-in color value, flash the color on the RGB LED.

let wheelColor = rgb.wheel(170)
if (wheelColor == rgb.colors(Colors.Yellow))
{
    for (let i = 0; i <= 3; i++) {
        rgb.setColor(wheelColor)
        loops.pause(1000)
        rgb.setColor(rgb.colors(Colors.Black))
        loops.pause(1000)
    }
}

See also

||rgb||, ||colors||