G2 - The Grammar Of Graphics

treemap / polar treemap

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源码

<!DOCTYPE html>
  <html>
    <head>
      <meta charset="utf-8">
      <title>polar treemap</title>
      <link rel="stylesheet" href="https://os.alipayobjects.com/s/prod/g2/static/doc-b57e62881a0344ecde9e68c4ce312143.css"/>
      
      <script src="https://a.alipayobjects.com/jquery/jquery/1.11.1/jquery.js"></script>

<script src="https://a.alipayobjects.com/g/datavis/g2/2.2.1/g2.js"></script>
    </head>
    <body>
      <div id="c1"></div>
      
      <script>

$.getJSON('../../static/data/mobile.json',function (data) {
  // 因为只有第一层的手机数据存在品牌（brand）字段，所以，将所有手机型号，增加brand字段
  function processData (data) {
    for(var i = 0; i < data.length ; i++) {
      var node = data[i];
      if (node.children) {
        for (var j = 0; j < node.children.length; j++) {
          node.children[j].brand = node.brand;
        }
      }
    }
  }

processData(data);

chart.axis(false);
  chart.legend(false);
  // 需要将显示tooltip的字段加到语法中，否则无法取到对应的字段例如 name
  chart.polygon().position(Stat.treemap('children*value*name')).color('brand')
    .label('brand*..level*value',function(name, level, value){
      if (level === 0 && value > 0.5) { // 只有第一层的，同时占比超过 0.5
        return name;
      }
    },
    {
      offset: 2,
      label:{
        fill: '#000',
        'fontSize': 12,
        'fontWeight': 'bold',
        shadowBlur: 8,
        shadowColor: '#fff'
      }
    }).style({
      stroke: '#fff',
      lineWidth: 1
    });
  chart.render();
});
</script>

</body>
  </html>

<script src="https://a.alipayobjects.com/g/datavis/g2/2.2.1/g2.js"></script>
      <script>
        G2.Global.setTheme('dark');
      </script>
    </head>
    <body>
      <div id="c1"></div>
      <script>

processData(data);

</body>
  </html>

processData(data);

polar treemap

矩形树图的极坐标展示含义及用法与矩形树图类似。了解更多