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+<template>
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+ <div class="echarts-line" :id="ids"></div>
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+</template>
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+
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+<script>
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+import * as echarts from 'echarts'
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+
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+export default {
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+ props: {
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+ legendChecked: {
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+ // 图例
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+ default: true
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+ },
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+ ids: {
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+ // id
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+ type: String,
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+ default: 'echartsline'
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+ },
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+ fontColor: {
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+ // 字体颜色
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+ type: String,
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+ default: '#89949F'
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+ },
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+ yLine: {
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+ // x轴分割线
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+ default: false
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+ },
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+ chartData: {
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+ // echarts·数据
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+ default: function () {
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+ return []
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+ }
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+ },
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+ // Y轴单位
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+ Yunit: {
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+ type: Boolean,
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+ default: true
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+ },
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+ theme: {
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+ default: function () {
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+ return ['#3da4fe', '#23cef2', '#65b664', '#00FDCB']
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+ }
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+ }
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+ },
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+ watch: {
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+ chartData: {
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+ // 深度监听，可监听到对象、数组的变化
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+ handler() {
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+ this.$nextTick(() => {
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+ if (this.chartData && this.chartData.length > 0) {
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+ this.dataValue(this.chartData)
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+ }
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+ })
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+ },
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+ deep: true, // 深度监听，可监听到对象、数组的变化
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+ immediate: true // 立刻执行
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+ }
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+ },
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+ data() {
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+ return {}
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+ },
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+ mounted() {},
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+ methods: {
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+ dataValue(newVal) {
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+ if (newVal && newVal.length > 0) {
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+ const seriesConfig = []
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+ const Yconfig = []
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+ const unit = []
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+ for (let i = 0; i < newVal.length; i++) {
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+ if (newVal[i].areaStyle) {
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+ const obj = {
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+ type: 'line',
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+ name: newVal[i].name,
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+ data: newVal[i].yData,
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+ smooth: newVal[i].smooth ? newVal[i].smooth : false,
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+ showSymbol: newVal[i].showSymbol ? newVal[i].showSymbol : false,
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+ lineStyle: {
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+ color: newVal[i].lineColor
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+ },
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+ areaStyle: {
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+ color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [
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+ {
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+ offset: 0,
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+ color: newVal[i].areaColor
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+ },
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+ {
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+ offset: 1,
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+ color: 'rgba(0,0,0,0)'
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+ }
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+ ])
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+ }
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+ }
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+ if (i === 1) {
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+ obj.yAxisIndex = 1
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+ }
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+ seriesConfig.push(obj)
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+ if (this.Yunit) {
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+ Yconfig.push({
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+ type: 'value',
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+ name:
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+ (newVal.length > 1 ? newVal[i].name : '单位') +
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+ '：' +
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+ newVal[i].unit,
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+ nameTextStyle: {
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+ fontSize: 12,
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+ color: this.fontColor
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+ },
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+ splitNumber: 5,
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+ axisTick: {
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+ show: false
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+ },
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+ splitLine: {
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+ show: this.yLine,
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+ lineStyle: {
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+ color: 'rgba(153, 153, 153, 0.3)'
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+ }
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+ },
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+ axisLine: {
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+ show: false
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+ },
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+ axisLabel: {
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+ color: this.fontColor,
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+ fontSize: 12
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+ }
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+ })
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+ } else {
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+ Yconfig.push({
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+ type: 'value',
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+ nameTextStyle: {
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+ fontSize: 12,
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+ color: this.fontColor
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+ },
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+ splitNumber: 5,
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+ axisTick: {
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+ show: false
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+ },
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+ splitLine: {
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+ show: this.yLine,
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+ lineStyle: {
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+ color: 'rgba(153, 153, 153, 0.3)'
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+ }
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+ },
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+ axisLine: {
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+ show: false
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+ },
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+ axisLabel: {
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+ color: this.fontColor,
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+ fontSize: 12
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+ }
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+ })
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+ Yconfig[0].name = '（m³/s）'
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+ }
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+
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+ unit.push(newVal[i].unit)
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+ } else {
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+ seriesConfig.push({
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+ type: 'line',
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+ name: newVal[i].name,
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+ data: newVal[i].yData,
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+ smooth: newVal[i].smooth ? newVal[i].smooth : false,
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+ symbolSize: newVal[i].showSymbol ? newVal[i].showSymbol : false,
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+ lineStyle: {
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+ color: newVal[i].lineColor
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+ }
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+ })
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+ Yconfig.push({
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+ type: 'value',
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+ name: newVal[i].name + '：' + newVal[i].unit,
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+ nameTextStyle: {
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+ fontSize: 12,
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+ color: this.fontColor
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+ },
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+ splitNumber: 5,
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+ axisTick: {
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+ show: false
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+ },
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+ splitLine: {
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+ show: this.yLine,
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+ lineStyle: {
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+ color: '#e5e5e5'
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+ }
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+ },
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+ axisLine: {
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+ show: false
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+ },
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+ axisLabel: {
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+ color: this.fontColor,
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+ fontSize: 12
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+ }
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+ })
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+ unit.push(newVal[i].unit)
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+ }
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+ }
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+ this.setEcharts(seriesConfig, Yconfig, newVal[0].xData, unit)
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+ }
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+ },
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+ setEcharts(series, Yconfig, dataAxis, unit) {
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+ let legend = []
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+ if (this.legendChecked) {
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+ legend = this.chartData.map((data, i) => {
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+ return {
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+ name: data.name,
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+ icon: 'roundRect',
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+ itemStyle: series[i].lineStyle
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+ }
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+ })
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+ } else {
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+ legend = []
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+ }
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+ const myChart = echarts.init(document.getElementById(this.ids))
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+ const option = {
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+ color: this.theme,
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+ tooltip: {
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+ trigger: 'axis',
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+ formatter: function (data) {
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+ if (!data.length) return
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+ if (data.length > 1) {
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+ let html = ''
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+ html = `<div class="toolTips"><div style="font-size: 12px;color: #fff">${data[0].axisValue}</div>`
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+ for (let i = 0; i < data.length; i++) {
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+ html += `<div style="font-size: 12px;color: #fff">${series[i].name}: ${data[i].value} ${unit[i]}</div>`
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+ }
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+ html += '</div>'
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+ return html
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+ } else {
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+ return `<div class="toolTips"><div style="font-size: 12px;color: #fff">${data[0].axisValue}: ${data[0].value} ${unit[0]}</div></div>`
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+ }
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+ },
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+ backgroundColor: '#487892',
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+ borderWidth: 0,
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+ padding: [3, 5],
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+ axisPointer: {
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+ lineStyle: {
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+ color: '#299acb'
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+ }
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+ }
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+ },
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+ legend: {
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+ top: 0,
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+ right: 'center',
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+ width: 240,
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+ data: legend,
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+ itemWidth: 15,
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+ itemHeight: 5,
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+ show: true,
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+ selectedMode: false,
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+ textStyle: {
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+ color: this.fontColor
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+ }
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+ },
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+ xAxis: {
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+ type: 'category',
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+ data: dataAxis,
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+ boundaryGap: false,
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+ axisTick: {
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+ show: true,
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+ inside: true
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+ },
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+ splitLine: {
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+ show: false
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+ },
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+ axisLine: {
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+ lineStyle: {
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+ color: 'rgba(135,142,148,0.5)'
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+ }
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+ },
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+ axisLabel: {
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+ color: this.fontColor,
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+ fontSize: 12
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+ }
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+ },
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+ yAxis: Yconfig,
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+ grid: {
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+ left: 20,
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+ right: 35,
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+ top: this.legendChecked ? 30 : 30,
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+ bottom: 0,
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+ containLabel: true
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+ },
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+ series: series
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+ }
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+ myChart.clear()
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+ myChart.setOption(option, true)
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+ }
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+ }
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+}
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+</script>
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+
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+<style scoped lang="scss">
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+.echarts-line {
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+ width: 80%;
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+ height: 80%;
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+}
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+</style>
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