G2-mobile - 嵌套饼图

   <!DOCTYPE html>
    <html>
      <head>
        <meta charset="utf-8">
        <title>嵌套饼图</title>
<script src="https://a.alipayobjects.com/g/datavis/g2-mobile-all/2.1.22/index.js"></script>
      </head>
      <body>
          <div style="width:416px;height:218px;margin:0 auto">
              <canvas id="c1" style="width:416px;height:218px;"></canvas>
          </div>
 <script>

GM.Global.pixelRatio = 2;
var  data = [
  {a: '1', b: 0.2, c: '1'},
  {a: '2', b: 0.5, c: '1'},
  {a: '3', b: 0.4, c: '1'},

  {a: '1', b: 0.8, c: '2'},
  {a: '2', b: 0.5, c: '2'},
  {a: '3', b: 0.6, c: '2'}
];

var chart = new GM.Chart({
  id: 'c1'
});

chart.source(data);

chart.coord('polar', {
  transposed: true,
  inner: 0.5
});

chart.axis(false);
chart.intervalStack().position('a*b').color('c');
chart.render();

</script>

      </body>
    </html>
          
嵌套饼图