definition.js•1.3 kB
import convertLabToLch from './convertLabToLch.js';
import convertLchToLab from './convertLchToLab.js';
import convertLabToRgb from '../lab/convertLabToRgb.js';
import convertRgbToLab from '../lab/convertRgbToLab.js';
import parseLch from './parseLch.js';
import { fixupHueShorter } from '../fixup/hue.js';
import { fixupAlpha } from '../fixup/alpha.js';
import { interpolatorLinear } from '../interpolate/linear.js';
import { differenceHueChroma } from '../difference.js';
import { averageAngle } from '../average.js';
const definition = {
mode: 'lch',
toMode: {
lab: convertLchToLab,
rgb: c => convertLabToRgb(convertLchToLab(c))
},
fromMode: {
rgb: c => convertLabToLch(convertRgbToLab(c)),
lab: convertLabToLch
},
channels: ['l', 'c', 'h', 'alpha'],
ranges: {
l: [0, 100],
c: [0, 150],
h: [0, 360]
},
parse: [parseLch],
serialize: c =>
`lch(${c.l !== undefined ? c.l : 'none'} ${
c.c !== undefined ? c.c : 'none'
} ${c.h || 0}${c.alpha < 1 ? ` / ${c.alpha}` : ''})`,
interpolate: {
h: { use: interpolatorLinear, fixup: fixupHueShorter },
c: interpolatorLinear,
l: interpolatorLinear,
alpha: { use: interpolatorLinear, fixup: fixupAlpha }
},
difference: {
h: differenceHueChroma
},
average: {
h: averageAngle
}
};
export default definition;