Function hslConvert

docs/app/js/sanddance-app.js:2455–2470

(o)

    return new Hsl(h, s, l, a);
}
function hslConvert(o) {
    if (o instanceof Hsl) return new Hsl(o.h, o.s, o.l, o.opacity);
    if (!(o instanceof Color)) o = color(o);
    if (!o) return new Hsl;
    if (o instanceof Hsl) return o;
    o = o.rgb();
    var r = o.r / 255, g = o.g / 255, b = o.b / 255, min = Math.min(r, g, b), max = Math.max(r, g, b), h = NaN, s = max - min, l = (max + min) / 2;
    if (s) {
        if (r === max) h = (g - b) / s + (g < b) * 6;
        else if (g === max) h = (b - r) / s + 2;
        else h = (r - g) / s + 4;
        s /= l < 0.5 ? max + min : 2 - max - min;
        h *= 60;
    } else s = l > 0 && l < 1 ? 0 : h;
    return new Hsl(h, s, l, o.opacity);
}
function hsl(h, s, l, opacity) {
    return arguments.length === 1 ? hslConvert(h) : new Hsl(h, s, l, opacity == null ? 1 : opacity);
}