echarts图例旁边加百分比及百分比对齐

一、效果图

二、代码

import cirle from '@/assets/imgs/dataScree/ybp.png'

let option={
    tooltip: {
      trigger: 'item',
      formatter: function (params) {
        return ''
      }
    },
    legend: {
      orient: 'vertical', 
      left: '230', 
      aligh: 'right',
      top: '20',
      icon: 'circle',
      itemWidth: 8, 
      itemHeight: 8, 
      itemGap: 19,
      textStyle: {
        color: '#FFFFFF',
        fontSize: 11,
        rich: {
        
          oneone: {
            width: 80
          },
          
          twotwo: {
            width: 30,
            color: '#FFFFFF',
            fontSize: 14,
            fontWeight: 'bolder'
          }
        }
      },
      
      formatter(name) {
        let percentage = 0
        for (let i = 0; i  data1.length; i++) {
          percentage += data1[i].value
        }
        let result = data1.find((item) => item.name == name)
        return `{oneone|${result.name}}{twotwo|${Math.round((result.value / percentage) * 100)} %}`
      }
    },
    series: [
      {
        name: '',
        type: 'pie',
        data: data1,
        radius: ['78%', '88%'],
        center: ['30%', '50%'], 
        avoidLabelOverlap: false,
        padAngle: 3,
        itemStyle: {
          normal: {
            backgroundColor: function (params) {
              var colorList = [
                '#20D49F',
                '#EA9F53',
                '#27FFF7',
                '#275EFF',
                '#DCC821'
              ]
              return colorList[params.dataIndex]
            }
          }
        },
        label: {
          show: false,
          position: 'center'
        },
        rich: {
          percent: {
            fontSize: 24
          }
        },
        labelLine: {
          show: true
        }
      }
    ],
    graphic: [
      {
        type: 'image',
        id: 'background',
        left: '26',
        top: 'center',
        z: -9, 
        bounding: 'raw',
        origin: [200, 200],
        style: {
          image: cirle, 
          width: 175,
          height: 175,
          opacity: 1
        }
      }
    ]
  }

三、图例百分比主要是 legend 中的 formatter 这块, 通过 textStyle 中的 rich 调整饼图图例的样式

      formatter(name) {
        let percentage = 0
        for (let i = 0; i  data1.length; i++) {
          percentage += data1[i].value
        }
        let result = data1.find((item) => item.name == name)
        return `{oneone|${result.name}}{twotwo|${Math.round((result.value / percentage) * 100)} %}`
      }

四、如果想实现以下效果，主要是需要配置 label 这个配置项

  series: [
          {
            name: this.bieText,
            type: "pie",
            radius: "50%",
            data: this.bieData,
            label: {
              normal: {
                show: true,
                formatter: '{b}{d}%'
  
              }
            },
            emphasis: {
              itemStyle: {
                shadowBlur: 10,
                shadowOffsetX: 0,
                shadowColor: "rgba(0, 0, 0, 0.5)",
              },
            },
          },
        ],