基于Taro3.x-Vue2框架构建的微信小程序版本echarts组件,及使用示例
npm i echarts-taro3-vue
引入EChart组件后,拿到EChart组件实例,并调用实例refresh(option)方法设置图标数据,option 格式参照echarts官网
举例:
// 柱状图
<template>
<view class="bar-chart">
<e-chart
ref="vueref0"
canvas-id="bar-canvas"
/>
</view>
</template>
<script lang="js">
import Taro from "@tarojs/taro";
import { EChart } from 'echarts-taro3-vue'
export default {
name: 'Bar',
components: {EChart},
mounted () {
const defaultOption = {
xAxis: {
type: 'category',
data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
},
yAxis: {
type: 'value'
},
series: [
{
data: [120, 200, 150, 80, 70, 110, 130],
type: 'bar',
showBackground: true,
backgroundStyle: {
color: 'rgba(220, 220, 220, 0.8)'
}
}
]
}
Taro.nextTick(() => {
this.$refs.vueref0.refresh(defaultOption)
})
},
}
</script>
<style>
.bar-chart {
width: 100%;
height: 100vh;
}
</style>
// 仪表盘
<template>
<view class="gauge-chart">
<e-chart
ref="vueref0"
canvas-id="gauge-canvas"
/>
</view>
</template>
<script lang="js">
import Taro from "@tarojs/taro";
import { EChart } from 'echarts-taro3-vue'
export default {
name: 'Gauge',
components: {EChart},
mounted () {
const option = {
tooltip: {
formatter: "{a} <br/>{b} : {c}%",
},
toolbox: {
feature: {
restore: {},
saveAsImage: {},
},
},
series: [
{
name: "业务指标",
type: "gauge",
detail: { formatter: "{value}%" },
data: [{ value: 50, name: "完成率" }],
},
],
};
Taro.nextTick(() => {
this.$refs.vueref0.refresh(option)
})
},
}
</script>
<style>
.gauge-chart {
width: 100%;
height: 100vh;
}
</style>
npm run dev:weapp