var dataUtil = require("../../utils/data_structure_util"); var _constants = require("../../utils/constants"); var PI = _constants.PI; var mathSin = _constants.mathSin; var mathCos = _constants.mathCos; var Shape = require("./Shape"); function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); } function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; } function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); } function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; } function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); } function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); } function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); } /** * @class qrenderer.graphic.shape.Isogon * 正多边形 * @docauthor 大漠穷秋 <damoqiongqiu@126.com> */ var Isogon = /*#__PURE__*/ function (_Shape) { _inherits(Isogon, _Shape); /** * @method constructor Isogon * @param {Object} options */ function Isogon(options) { var _this; _classCallCheck(this, Isogon); _this = _possibleConstructorReturn(this, _getPrototypeOf(Isogon).call(this, dataUtil.merge({ shape: { x: 0, y: 0, r: 0, n: 0 } }, options, true))); /** * @property {String} type */ _this.type = 'isogon'; return _this; } /** * @method buildPath * 绘制元素路径 * @param {Object} ctx * @param {String} shape */ _createClass(Isogon, [{ key: "buildPath", value: function buildPath(ctx, shape) { var n = shape.n; if (!n || n < 2) { return; } var x = shape.x; var y = shape.y; var r = shape.r; var dStep = 2 * PI / n; var deg = -PI / 2; ctx.moveTo(x + r * mathCos(deg), y + r * mathSin(deg)); for (var i = 0, end = n - 1; i < end; i++) { deg += dStep; ctx.lineTo(x + r * mathCos(deg), y + r * mathSin(deg)); } ctx.closePath(); return; } }]); return Isogon; }(Shape); module.exports = Isogon;