G2 - The Grammar Of Graphics

饼图 / 嵌套饼图

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源码

<!DOCTYPE html>
  <html>
    <head>
      <meta charset="utf-8">
      <title>嵌套饼图</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>
var data = [
  {value:335,type:'直达',name:'直达'},
  {value:310,type:'营销广告',name:'邮件营销'},
  {value:234,type:'营销广告',name:'联盟广告'},
  {value:135,type:'营销广告',name:'视频广告'},
  {value:1048,type:'搜索引擎',name:'百度'},
  {value:251,type:'搜索引擎',name:'谷歌'},
  {value:147,type:'搜索引擎',name:'必应'},
  {value:102,type:'搜索引擎',name:'其他'}
];
var Stat = G2.Stat;
var chart = new G2.Chart({
  id: 'c1',
  width: 1000,
  height: 500,
  plotCfg: {
    margin: [60, 80]
  }
});
chart.source(data);
chart.legend(false);
chart.coord('theta', {
  radius: 0.5 // 设置饼图的大小
});
// 绘制内部的饼图
chart.intervalStack()
  .position(Stat.summary.percent('value'))
  .color('type',['#4E7CCC', '#36B3C3', '#F9815C'])
  .label('type', {
    offset: -20,
    label: {
      fontSize: 14
    }
  });
// 绘制外圈饼图
var view = chart.createView();
view.source(data);
view.coord('theta', {
  inner: 0.75 // 设置空心部分的大小
});
view.intervalStack()
  .position(Stat.summary.percent('value'))
  .color('name')
  .label('name*type')
  .selected({
    selectedMode: 'multiple' // 设置 geom 的选择模式
  });
chart.render();
// 交互，内部饼图某个部分被点击触发外圈饼图选中
chart.on('plotclick', function(ev) {
  var chartGeom = chart.get('geoms')[0];
  var viewGeom = view.get('geoms')[0];
  viewGeom.clearSelected();
  var selected = chartGeom.getSelected();
  if (selected) {
    var data = selected['_origin'];
    var selectedType = data.type;
    var items = viewGeom.getData();
    for (var i = 0; i < items.length; i++) {
      var item = items[i];
      if (item['_origin'].type === selectedType) {
        viewGeom.setSelected(item);
      }
    }
  }
});
</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>
var data = [
  {value:335,type:'直达',name:'直达'},
  {value:310,type:'营销广告',name:'邮件营销'},
  {value:234,type:'营销广告',name:'联盟广告'},
  {value:135,type:'营销广告',name:'视频广告'},
  {value:1048,type:'搜索引擎',name:'百度'},
  {value:251,type:'搜索引擎',name:'谷歌'},
  {value:147,type:'搜索引擎',name:'必应'},
  {value:102,type:'搜索引擎',name:'其他'}
];
var Stat = G2.Stat;
var chart = new G2.Chart({
  id: 'c1',
  width: 1000,
  height: 500,
  plotCfg: {
    margin: [60, 80]
  }
});
chart.source(data);
chart.legend(false);
chart.coord('theta', {
  radius: 0.5 // 设置饼图的大小
});
// 绘制内部的饼图
chart.intervalStack()
  .position(Stat.summary.percent('value'))
  .color('type',['#4E7CCC', '#36B3C3', '#F9815C'])
  .label('type', {
    offset: -20,
    label: {
      fontSize: 14
    }
  });
// 绘制外圈饼图
var view = chart.createView();
view.source(data);
view.coord('theta', {
  inner: 0.75 // 设置空心部分的大小
});
view.intervalStack()
  .position(Stat.summary.percent('value'))
  .color('name')
  .label('name*type')
  .selected({
    selectedMode: 'multiple' // 设置 geom 的选择模式
  });
chart.render();
// 交互，内部饼图某个部分被点击触发外圈饼图选中
chart.on('plotclick', function(ev) {
  var chartGeom = chart.get('geoms')[0];
  var viewGeom = view.get('geoms')[0];
  viewGeom.clearSelected();
  var selected = chartGeom.getSelected();
  if (selected) {
    var data = selected['_origin'];
    var selectedType = data.type;
    var items = viewGeom.getData();
    for (var i = 0; i < items.length; i++) {
      var item = items[i];
      if (item['_origin'].type === selectedType) {
        viewGeom.setSelected(item);
      }
    }
  }
});
</script>

</body>
  </html>

嵌套饼图

饼图广泛得应用在各个领域，用于表示不同分类的占比情况，通过弧度大小来对比各种分类。了解更多

数据摘自