<template>
    <!--圈形表格-->
    <div>
      <div id="main" ></div>
    </div>
</template>
<script>
    export default {
      data () {
        return {
          charts: '',
          opinion: ['直接访问', '邮件营销', '联盟广告', '视频广告', '搜索引擎'],
          opinionData: [
            {value: 335, name: '直接访问'},
            {value: 310, name: '邮件营销'},
            {value: 234, name: '联盟广告'},
            {value: 135, name: '视频广告'},
            {value: 1548, name: '搜索引擎'}
          ]
        }
      },
      methods: {
        drawPie (id) {
          this.charts = this.$echarts.init(document.getElementById(id))
          this.charts.setOption({
            tooltip: {
              trigger: 'item',
              formatter: '{a}<br/>{b}:{c} ({d}%)'
            },
            legend: {
              orient: 'vertical',
              x: 'left',
              data: this.opinion
            },
            series: [
              {
                name: '访问来源',
                type: 'pie',
                radius: ['50%', '70%'],
                avoidLabelOverlap: false,
                label: {
                  normal: {
                    show: false,
                    position: 'center'
                  },
                  emphasis: {
                    show: true,
                    testStyle: {
                      fontSize: '30',
                      fontWeight: 'bold'
                    }
                  }
                },
                labelLine: {
                  normal: {
                    show: false
                  }
                },
                data: this.opinionData
              }
            ]
          })
        }
      },
      mounted () {
        this.$nextTick(function () {
          this.drawPie('main')
        })
      }
    }
</script>
<style lang="scss" scoped>
  #main {
    width: 400px;
    height: 300px;
  }
</style>