[Echarts] Use echarts to draw scatter plots in vue3 (to be updated)

1. Use npm to download

npm install echarts --save

2. Create a new echarts.ts file in vue

The following is the echarts.ts file code

// 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and折线图图表and散点图，图表后缀都为 Chart  */
import { BarChart, LineChart,ScatterChart } from "echarts/charts";
 
// 引入提示框，标题，直角坐标系，数据集，内置数据转换器组件，组件后缀都为 Component
import {
  TitleComponent,
  TooltipComponent,
  GridComponent,
  DatasetComponent,
  TransformComponent,
} from "echarts/components";
 
// 标签自动布局，全局过渡动画等特性
import { LabelLayout, UniversalTransition } from "echarts/features";
 
// 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,
  DatasetComponent,
  TransformComponent,
  BarChart,
  LabelLayout,
  UniversalTransition,
  CanvasRenderer,
  LineChart,
  ScatterChart
]);
 
// 导出
export default echarts;

3. Import echarts in main.ts, and then mount it into the vue instance

Below is the main.ts code

import { createApp } from 'vue'
// vue-router
import router from './router/index'
// Element
import ElementPlus from 'element-plus'
import 'element-plus/dist/index.css'
import zhCn from 'element-plus/es/locale/lang/zh-cn'

import echarts from './util/echarts'

// app.sass
import './assets/style/app.sass'
// 根组件
import App from './App.vue'

const app = createApp(App)

// 挂载到vue实例中
app.provide('$echarts', echarts);

app.use(router).use(ElementPlus, { locale: zhCn }).mount('#app')

1. The following is the echarts.vue code

<template>
    <div id="chartcontainer"></div>
</template>
  
<script lang="ts" setup>
import { reactive, ref, defineComponent, inject, onMounted} from 'vue';

const echarts = inject('$echarts');
onMounted(() => {
    const myChart = (echarts as any).init(document.getElementById('chartcontainer'));
    myChart.setOption({
        title: {
            text: 'ECharts 散点图',
        },
        xAxis: {
            data: ['1', '5', '10', '15', '20', '25'],
        },
        yAxis: {},
        series: [
            {
                type: 'scatter',
                data: [220, 182, 191, 234, 290, 310],
            },
        ],
    });
});

</script>
  
<style lang="scss" scoped>
#chartcontainer {
    width: 800px;
    height: 600px;
}
</style>
  
  

Renderings: