@chayns/colors/cjs/converter/hsv/hsvToRgb1.js

JavaScript utility functions for the calculation of colors for chayns

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = hsvToRgb1;
var _is = require("../../utils/is");
function hsvToRgb1(hsv) {
  if (!(0, _is.isHsv)(hsv)) {
    return null;
  }
  var s = hsv.s,
    v = hsv.v;
  var h = hsv.h;
  h /= 360;
  var r;
  var g;
  var b;
  var i = Math.floor(h * 6);
  var f = h * 6 - i;
  var p = v * (1 - s);
  var q = v * (1 - f * s);
  var t = v * (1 - (1 - f) * s);
  switch (i % 6) {
    case 0:
      r = v;
      g = t;
      b = p;
      break;
    case 1:
      r = q;
      g = v;
      b = p;
      break;
    case 2:
      r = p;
      g = v;
      b = t;
      break;
    case 3:
      r = p;
      g = q;
      b = v;
      break;
    case 4:
      r = t;
      g = p;
      b = v;
      break;
    case 5:
      r = v;
      g = p;
      b = q;
      break;
    default:
      r = v;
      g = t;
      b = p;
      break;
  }
  if ('a' in hsv && (0, _is.isNumber)(hsv.a)) {
    return {
      r: r,
      g: g,
      b: b,
      a: hsv.a
    };
  }
  return {
    r: r,
    g: g,
    b: b
  };
}
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