vue项目中如何封装echarts
图表,下面web建站小编给大家详细介绍一下封装方法!
具体代码如下:
复制代码<template>
<div class="chart">
<div ref="chart" :style="{ height: height, width: width }" />
</div>
</template>
<script>
// 引入 echarts 核心模块,核心模块提供了 echarts 使用必须要的接口。
import * as echarts from 'echarts/core'
// 引入柱状图图表,图表后缀都为 Chart
import {
BarChart
} from 'echarts/charts'
// 引入提示框,标题,直角坐标系组件,组件后缀都为 Component
import {
TitleComponent,
TooltipComponent,
GridComponent
} from 'echarts/components'
// 引入 Canvas 渲染器,注意引入 CanvasRenderer 或者 SVGRenderer 是必须的一步
import {
CanvasRenderer
} from 'echarts/renderers'
// 注册必须的组件
echarts.use(
[TitleComponent, TooltipComponent, GridComponent, BarChart, CanvasRenderer]
)
export default {
name: 'ChartView',
props: {
width: {
type: String,
default: '100%'
},
height: {
type: String,
default: '350px'
},
autoResize: {
type: Boolean,
default: true
},
chartOption: {
type: Object,
required: true
},
type: {
type: String,
default: 'canvas'
}
},
data() {
return {
chart: null
}
},
watch: {
chartOption: {
deep: true,
handler(newVal) {
this.setOptions(newVal)
}
}
},
mounted() {
this.initChart()
if (this.autoResize) {
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: {
resizeHandler() {
this.chart.resize()
},
initChart() {
this.chart = echarts.init(this.$refs.chart, '', {
renderer: this.type
})
this.chart.setOption(this.chartOption)
this.chart.on('click', this.handleClick)
},
handleClick(params) {
this.$emit('click', params)
},
setOptions(option) {
this.clearChart()
this.resizeHandler()
if (this.chart) {
this.chart.setOption(option)
}
},
refresh() {
this.setOptions(this.chartOption)
},
clearChart() {
this.chart && this.chart.clear()
}
}
}
</script>
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标签: echarts图表
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