planeModelDefaultRange

function planeModelDefaultRange(
  model: PlaneModel,
  channel: PlaneChannel,
): [number, number] | undefined;

Some defaults are descending (OKLCH and HCT chroma, HCT tone, HSL/HSV saturation, lightness and value, OKLab b) so that larger values sit at y = 0, the top of a screen-space plane.

Parameters

modelPlaneModel

Plane model to inspect.

channelPlaneChannel

Channel whose default range should be read.

Returns

[number, number] | undefinedA new [start, end] tuple, or undefined when the model has no such channel.

Throws

• When model is not a supported plane model.

Example

import { planeModelDefaultRange } from '@pbroom/color-kit/plane';

planeModelDefaultRange('oklch', 'c'); // → [0.4, 0]
planeModelDefaultRange('hsl', 'l'); // → [100, 0]
planeModelDefaultRange('oklch', 'r'); // → undefined

See also

Also exported from

• @pbroom/color-kitthe same declaration, re-exported