饼图与仪表盘组合二

效果图：

类似于套在内环上增长的效果，整个三段加起来100%

代码：

option = {
  tooltip: {
    trigger: 'item'
  },
  series: [
    {  // 最底部的圈层
      type: 'gauge',
      startAngle: 90,
      endAngle: -270,
      clockwise: false,
      radius: '66%',
      pointer: {
        show: false
      },
      progress: {
        show: true,
        overlap: false,
        roundCap: true,
        clip: false,
        itemStyle: {
          borderWidth: 30,
          borderColor: '#daf7f1',
          color: '#daf7f1',
        },
      },
      axisLine: {
        show: false,
        lineStyle: {
          width: 0,
          color: [
            [1, '#fff'],
          ]
        }
      },
      splitLine: {
        show: false,
      },
      axisTick: {
        show: false
      },
      axisLabel: {
        show: false,
      },
      data: [
        {
          value: 100,
        }
      ],
      detail: {
        show: false,
      }
    },
    {
      color: ["#00A2FF", "#00CBD3", "#e5a3a300"],  // 最后一个是透明色
      name: 'Access From',
      type: 'pie',
      radius: ['55%', '75%'],
      minAngle: 15,//最小角度
      startAngle:270, //起始角度
      avoidLabelOverlap: false,
      itemStyle: {
        borderRadius: 10,
        borderColor: '#fff',
        borderWidth: 2
      },
      label: {
        show: false,
        position: 'center'
      },
      emphasis: {
        label: {
          show: true,
          fontSize: 40,
          fontWeight: 'bold'
        }
      },
      labelLine: {
        show: false
      },
      data: [
        { value: 40, name: 'Search Engine' },
        { value: 10, name: 'Direct' },
        { value: 50, name: 'Union Ads' },
      ]
    },
  ]
};