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node_modules/zrender/src/graphic/shape/Ring.js 512 Bytes
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aaac7fed   liuqimichale   add 
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  /**
   * 圆环
   * @module zrender/graphic/shape/Ring
   */
  
  import Path from '../Path';
  
  export default Path.extend({
  
      type: 'ring',
  
      shape: {
          cx: 0,
          cy: 0,
          r: 0,
          r0: 0
      },
  
      buildPath: function (ctx, shape) {
          var x = shape.cx;
          var y = shape.cy;
          var PI2 = Math.PI * 2;
          ctx.moveTo(x + shape.r, y);
          ctx.arc(x, y, shape.r, 0, PI2, false);
          ctx.moveTo(x + shape.r0, y);
          ctx.arc(x, y, shape.r0, 0, PI2, true);
      }
  });