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src/components/barChart.vue 4.86 KB
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  <template>
    <div :class="className" :style="{height:height,width:width}"></div>
  </template>
  
  <script>
  import echarts from 'echarts'
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  import {debounce} from '../utils/debounce'
  
  export default {
    name: 'barChart',
    props: {
      className: {
        type: String,
        default: 'chart'
      },
      width: {
        type: String,
        default: '100%'
      },
      height: {
        type: String,
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        default: '100%'
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      },
      autoResize: {
        type: Boolean,
        default: true
      },
      chartData: {
        type: Object,
        required: true
      }
    },
    data() {
      return {
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        chart: null
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      }
    },
    watch: {
      chartData: {
        deep: true,
      }
    },
    mounted() {
      this.initChart()
      if (this.autoResize) {
        this.__resizeHandler = debounce(() => {
          if (this.chart) {
            this.chart.resize()
          }
        }, 100)
        window.addEventListener('resize', this.__resizeHandler)
      }
    },
    beforeDestroy() {
      if (!this.chart) {
        return
      }
      if (this.autoResize) {
        window.removeEventListener('resize', this.__resizeHandler)
      }
  
      this.chart.dispose()
      this.chart = null
    },
    methods: {
      setOptions({xData, yData} = {}) {
        this.chart.setOption({
          xAxis: {
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            boundaryGap: true,
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            axisLabel : {
              formatter: '{value}',
              textStyle: {
                color: '#59AAF7'
              }
            },
            axisLine:{
              lineStyle:{
                color:'rgba(89,170,247,.3)'
              }
            },
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            axisTick: {
              show: false
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            },
            splitLine: {
              show: false
            },
            data: [
              {
                value: xData[0],
                textStyle: {
                  fontSize: 12,
                  color: '#59AAF7'
                }
              },
              {
                value: xData[1],
                textStyle: {
                  fontSize: 12,
                  color: '#FFB900'
                }
              },
              {
                value: xData[2],
                textStyle: {
                  fontSize: 12,
                  color: '#FD4B15'
                }
              }
            ]
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          },
          grid: {
            left: 10,
            right: 10,
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            bottom: 10,
            top: 10,
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            containLabel: true
          },
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          tooltip: {
  
          },
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          yAxis: {
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            axisLabel : {
              formatter: '{value}',
              textStyle: {
                color: '#fff'
              }
            },
            axisLine:{
              lineStyle:{
                color:'rgba(89,170,247,.3)'
              }
            },
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            axisTick: {
              show: false
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            },
            splitLine: {
              show: false
            },
            splitNumber:3
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          },
          series: [{
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            type: 'bar',
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            barWidth:25,
            data: [
              {
                name: xData[0],
                value: yData[0],
                label: {
                  show: true,
                  position: 'top',
                  textStyle: {
                    fontSize: 14,
                    color: '#01AEFE'
                  }
                },
                itemStyle: {
                  normal: {
                    color: new echarts.graphic.LinearGradient(
                      0, 0, 0, 1,
                      [
                        { offset: 0, color: '#635BE6' },
                        { offset: 1, color: '#6DB7EF' }
                      ]
                    )
                  }
                }
              },
              {
                name: xData[1],
                value: yData[1],
                label: {
                  show: true,
                  position: 'top',
                  textStyle: {
                    fontSize: 14,
                    color: '#FFB700'
                  }
                },
                itemStyle: {
                  normal: {
                    color: new echarts.graphic.LinearGradient(
                      0, 0, 0, 1,
                      [
                        { offset: 0, color: '#F9B205' },
                        { offset: 1, color: '#F2E34A' }
                      ]
                    )
                  }
                }
              },
              {
                name: xData[2],
                value: yData[2],
                label: {
                  show: true,
                  position: 'top',
                  textStyle: {
                    fontSize: 14,
                    color: '#FD4B15'
                  }
                },
                itemStyle: {
                  normal: {
                    color: new echarts.graphic.LinearGradient(
                      0, 0, 0, 1,
                      [
                        { offset: 0, color: '#F36C00' },
                        { offset: 1, color: '#F4C5A8' }
                      ]
                    )
                  }
                }
              }
            ]
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          }]
        })
      },
      initChart() {
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        this.chart = echarts.init(this.$el)
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        this.setOptions(this.chartData)
      }
    }
  }
  </script>