本文实例为大家分享了VUE项目中封装Echart折线图的具体代码，供大家参考，具体内容如下
封装Echart折线图，可显示多条折线
1. 首先在项目中全局引入Echarts，main.js中：
import * as echarts from 'echarts' Vue.prototype.$echarts = echarts
2.components中新建组件baseLineChart.vue，以下代码直接复制：
<template>
<div
id="baseLineChart"
ref="baseLineChart"
:style="{ width: chartWidth, height: chartHeight }"
/>
</template>
<script>
export default {
props: {
chartData: {
type: Array,
default: () => []
},
timeX: {
type: Array,
default: () => []
},
chartName: {
type: String,
default: ''
},
chartWidth: {
type: String,
default: ''
},
chartHeight: {
type: String,
default: ''
},
seriesName: {
type: Array,
default: () => []
},
chartUnit: {
type: String,
default: ''
}
},
data() {
return {
baseLineChart: null,
newChartData: {}
}
},
computed: {
chartOptions() {
const options = {
grid: {
left: '4%',
bottom: '8%',
top: '15%',
right: '0'
},
tooltip: {
trigger: 'axis'
},
color: ['#1879BD', '#03B8DF', '#7B879A'],
legend: {
show: true,
right: '0',
top: '-1%',
icon: 'circle'
},
xAxis: [
{
type: 'category',
axisTick: { show: false },
data: []
}
],
yAxis: [
{
type: 'value',
name: '',
nameTextStyle: {
padding: [0, 15, 0, 0]
}
}
],
series: []
}
return options
}
},
watch: {
chartData: {
handler(newValue, oldValue) {
this.newChartData = newValue
this.initData()
},
deep: true
}
},
mounted() {
this.$nextTick(() => {
this.initChart()
if (this.chartData) {
this.initData()
}
})
},
methods: {
initChart() {
const _this = this
_this.baseLineChart = _this.$echarts.init(this.$refs.baseLineChart)
window.addEventListener('resize', function () {
_this.baseLineChart.resize()
})
},
initData() {
let sData = []
if (this.chartData) {
sData = this.chartData.map((val, index) => {
return {
data: val,
name: this.seriesName[index],
type: 'line'
}
})
this.chartOptions.series = sData
}
this.chartOptions.xAxis[0].data = this.timeX
this.chartOptions.yAxis[0].name = `单位(${this.chartUnit})`
this.baseLineChart.setOption(this.chartOptions, true)
}
}
}
</script>配置项根据自身项目来定制。
3、在组件中引入：
<template>
<div>
<baseLine
:chart-data="chartData"
:time-x="timeX"
chart-name="OEE"
chart-width="1700px"
chart-height="350px"
:series-name="seriesName"
chart-unit="%"
/>
</div>
</template>
import baseLine from '@/components/charts/baseLineChart.vue'
<script>
export default {
components: {
baseLine
},
data() {
return {
timeX: [],
chartData：[]
seriesName: ['白班', '晚班']
}
},
}
</script>chart-width 图表宽度
chart-height 图表高度
chart-unit 图表数据的显示单位
timeX为X轴数据，一般为时间数组 [‘1-1’,‘1-2’,‘1-3’ ]；
chartData为折线数据，多条数据格式 [ [1,2,3],[4,5,6] ]
seriesName为每条折线对应名称
同理可封装其他图表
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持Devmax。