Function df

resources/vega.min.js:9169–9194

(t)

    );
  }
  function df(t) {
    if (t instanceof gf) return new gf(t.h, t.s, t.l, t.opacity);
    if ((t instanceof Lc || (t = tf(t)), !t)) return new gf();
    if (t instanceof gf) return t;
    var e = (t = t.rgb()).r / 255,
      n = t.g / 255,
      r = t.b / 255,
      i = Math.min(e, n, r),
      o = Math.max(e, n, r),
      a = NaN,
      s = o - i,
      u = (o + i) / 2;
    return (
      s
        ? ((a =
            e === o
              ? (n - r) / s + 6 * (n < r)
              : n === o
                ? (r - e) / s + 2
                : (e - n) / s + 4),
          (s /= u < 0.5 ? o + i : 2 - o - i),
          (a *= 60))
        : (s = u > 0 && u < 1 ? 0 : a),
      new gf(a, s, u, t.opacity)
    );
  }
  function pf(t, e, n, r) {
    return 1 === arguments.length ? df(t) : new gf(t, e, n, null == r ? 1 : r);
  }