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fix(color): output from rgbToHsv and rgbToHsl is now correct (#9933)

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This commit is contained in:
Dimitris-Rafail Katsampas
2022-06-15 18:36:57 +03:00
committed by GitHub
parent aee1d05651
commit ef70956623
1 changed files with 18 additions and 10 deletions
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28
packages/core/color/color-common.ts
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@ -466,8 +466,12 @@ function argbFromHsvOrHsva(value: string): number {
// *Assumes:* r, g, and b are contained in [0, 255]
// *Returns:* { h, s, l } in [0,360] and [0,100]
function rgbToHsl(r, g, b) {
const max = Math.max(r, g, b) / 255,
min = Math.min(r, g, b) / 255;
r /= 255;
g /= 255;
b /= 255;
const max = Math.max(r, g, b),
min = Math.min(r, g, b);
let h, s;
const l = (max + min) / 2;
@ -478,13 +482,13 @@ function rgbToHsl(r, g, b) {
s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
switch (max) {
case r:
h = (g - b) / 255 / d + (g < b ? 6 : 0);
h = (g - b) / d + (g < b ? 6 : 0);
break;
case g:
h = (b - r) / 255 / d + 2;
h = (b - r) / d + 2;
break;
case b:
h = (r - g) / 255 / d + 4;
h = (r - g) / d + 4;
break;
}
@ -530,8 +534,12 @@ function hslToRgb(h1, s1, l1) {
// *Assumes:* r, g, and b are contained in the set [0, 255]
// *Returns:* { h, s, v } in [0,360] and [0,100]
function rgbToHsv(r, g, b) {
const max = Math.max(r, g, b) / 255,
min = Math.min(r, g, b) / 255;
r /= 255;
g /= 255;
b /= 255;
const max = Math.max(r, g, b),
min = Math.min(r, g, b);
let h;
const v = max;
@ -543,13 +551,13 @@ function rgbToHsv(r, g, b) {
} else {
switch (max) {
case r:
h = (g - b) / 255 / d + (g < b ? 6 : 0);
h = (g - b) / d + (g < b ? 6 : 0);
break;
case g:
h = (b - r) / 255 / d + 2;
h = (b - r) / d + 2;
break;
case b:
h = (r - g) / 255 / d + 4;
h = (r - g) / d + 4;
break;
}
h /= 6;