xiangan_pc/src/components/echarts/follow-up-line.vue

<template>
  <div>
    <div :id="idName" :style="{ height: height, width: width }" />
  </div>
</template>
<script>
export default {
  props: {
    idName: { type: String, default: 'chart' },
    width: { type: String, default: '100%' },
    height: { type: String, default: '200px' },
    chartData: { type: Array, default: () => [] },
    desc: { type: String, default: '' }
  },
  data() {
    return {
      legendData: [],
      seriesData: [],
      disabled: false
    }
  },
  watch: {
    chartData: {
      handler(val, olVal) {
        console.log(val)
        this.initFun()
      },
      deep: true
    }
  },
  mounted() {
    this.initFun()
  },
  methods: {
    initFun() {
      this.legendData = []
      if (this.chartData && this.chartData.length > 0) {
        this.chartData.forEach((item, index) => {
          this.legendData.push(item.type)
          item.dataList = []
          item.dateList = []
          item.echartsVo.forEach((iten, i) => {
            item.dataList.push(iten.value)
            item.dateList.push(iten.data)
            if (index === this.chartData.length - 1 && i === item.echartsVo.length - 1) {
              this.visionFun()
            }
          })
        })
      }
    },
    visionFun() {
      // 基于准备好的dom，初始化echarts实例
      const followUpBar = this.$echarts.init(document.getElementById(this.idName))
      this.chartData.forEach(item => {
        this.seriesData.push({
          name: item.type,
          type: 'line',
          data: item.dataList
        })
      })
      // 基于准备好的dom，初始化echarts实例
      followUpBar.setOption({
        tooltip: {
          trigger: 'axis',
          formatter: function(params, ticket, callback) {
            let result = `${params[0].name} <br/>`
            params.forEach(item => {
              if (item.value) {
                result += `${item.marker}${item.seriesName} : ${item.value}% <br/>`
              } else {
                result += `${item.marker}${item.seriesName} : - <br/>`
              }
            })
            return result
          }
        },
        legend: {
          data: this.legendData,
          top: 30
        },
        dataZoom: [
          {
            type: 'inside',
            disabled: this.disabled,
            start: 0,
            end: 100
          }
        ],
        grid: {
          top: 80,
          left: 50,
          right: 50,
          bottom: 30,
          containLabel: false
        },
        xAxis: {
          type: 'category',
          boundaryGap: false,
          data: this.chartData[0].dateList
        },
        yAxis: {
          type: 'value',
          axisLabel: {
            show: true,
            interval: 'auto',
            formatter: '{value}%'
          }
        },
        series: [...this.seriesData]
      })
      window.addEventListener('resize', () => { followUpBar.resize() })
    }
  }
}

</script>
<style style="scss" scoped>
</style>