en/builder/src/zrender3/graphic/shape/Heart.js

/**
 * 心形
 * @module zrender/graphic/shape/Heart
 */
import Path from '../Path';
export default Path.extend({
  type: 'heart',
  shape: {
    cx: 0,
    cy: 0,
    width: 0,
    height: 0
  },
  buildPath: function (ctx, shape) {
    var x = shape.cx;
    var y = shape.cy;
    var a = shape.width;
    var b = shape.height;
    ctx.moveTo(x, y);
    ctx.bezierCurveTo(x + a / 2, y - b * 2 / 3, x + a * 2, y + b / 3, x, y + b);
    ctx.bezierCurveTo(x - a * 2, y + b / 3, x - a / 2, y - b * 2 / 3, x, y);
  }
});