Function hue

external/.d3.js:3745–3751

(a, b)

}

function hue(a, b) {
  var i = hue$1(+a, +b);
  return function(t) {
    var x = i(t);
    return x - 360 * Math.floor(x / 360);
  };
}

function interpolateRound(a, b) {
  return a = +a, b = +b, function(t) {