文章目录
- 一、ECharts介绍
- 1. 简介
- 2. 相关网站
- 3. HTML引入方式
- 4. 基本概念
- 二、常见图表
- 1. 柱状图
- 2. 折线图
- 3. 饼图
- 4. 雷达图
- 5. 地图
- 三、应用
- 1. 动画
- 2. 交互
一、ECharts介绍
1. 简介
ECharts是一个使用JavaScript实现的开源可视化库，用于生成各种图表和图形。
ECharts提供了折线图、柱状图、散点图、饼图、地图、时间序列等，以及各种交互功能和数据可视化效果。
ECharts的主要特点包括：
- 高度定制化：用户可以根据自己的需求自定义图表的各种属性和样式，包括颜色、字体、交互等。
- 跨平台：ECharts可以在各种浏览器和设备上运行，包括桌面浏览器、移动设备和嵌入式浏览器。
- 丰富的图表类型和组件：ECharts提供了大量的图表类型和组件，可以满足各种数据可视化的需求。
- 高度兼容性：ECharts支持多种数据格式和数据源，可以与各种数据库和数据服务进行集成。
- 易于使用：ECharts提供了简单易用的API和文档，用户可以快速上手并创建各种图表。
2. 相关网站
ECharts 官网
ECharts CDN
3. HTML引入方式
- 本地引入
<script src="echarts-5.4.3.min.js"></script>
- CDN引入
<script src="https://cdn.bootcdn.net/ajax/libs/echarts/5.4.3/echarts.min.js "></script>
4. 基本概念
echart = echarts.init(document.getElementById("container")); // 初始化类
option = { // 配置类title: { // 标题text: 'Website',left: 'center'},tooltip: { // 提示框trigger: 'item'},legend: { // 配置图例的显示和位置orient: 'vertical',left: 'left'},xAxis: { // 配置X轴（直角坐标才会有）type: 'category',data: []},yAxis: { // 配置Y轴（直角坐标才会有）type: 'value'},series: [ // 配置图表的数据和绘制方式{type: '', // 图表类别，如折线图（line）data: [ // 图表数据，可以是数组或对象数组]}]
};
echart.setOption(option); // 渲染图形
二、常见图表
1. 柱状图
柱状图官方示例
<!DOCTYPE html>
<html lang="en">
<head><title>Test</title><link rel="icon" href="data:;base64,="><meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate"><script src="https://cdn.bootcdn.net/ajax/libs/echarts/5.4.3/echarts.min.js"></script>
</head>
<body><div id="container" style="width: 600px; height: 500px;"></div>
</body>
<script>echart = echarts.init(document.getElementById("container"));option = {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'}]};echart.setOption(option);
</script>
</html>
- HTML页面效果
2. 折线图
折线图官方示例
<!DOCTYPE html>
<html lang="en">
<head><title>Test</title><link rel="icon" href="data:;base64,="><meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate"><script src="https://cdn.bootcdn.net/ajax/libs/echarts/5.4.3/echarts.min.js"></script>
</head>
<body><div id="container" style="width: 600px; height: 500px;"></div>
</body>
<script>echart = echarts.init(document.getElementById("container"));option = {xAxis: {type: 'category',data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']},yAxis: {type: 'value'},series: [{data: [50, 130, 160, 170, 120, 110, 170],type: 'line'}]};echart.setOption(option);
</script>
</html>
- HTML页面效果
3. 饼图
饼图官方示例
<!DOCTYPE html>
<html lang="en">
<head><title>Test</title><link rel="icon" href="data:;base64,="><meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate"><script src="https://cdn.bootcdn.net/ajax/libs/echarts/5.4.3/echarts.min.js"></script>
</head>
<body><div id="container" style="width: 600px; height: 500px;"></div>
</body>
<script>echart = echarts.init(document.getElementById("container"));option = {title: {text: 'Website',left: 'center'},tooltip: {trigger: 'item'},legend: {orient: 'vertical',left: 'left'},series: [{name: 'Access From',type: 'pie',radius: '50%',data: [{ value: 1048, name: 'Search Engine' },{ value: 735, name: 'Direct' },{ value: 580, name: 'Email' },{ value: 484, name: 'Union Ads' },{ value: 300, name: 'Video Ads' }],emphasis: {itemStyle: {shadowBlur: 10,shadowOffsetX: 0,shadowColor: 'rgba(0, 0, 0, 0.5)'}}}]};echart.setOption(option);
</script>
</html>
- HTML页面效果
4. 雷达图
雷达图官方示例
<!DOCTYPE html>
<html lang="en">
<head><title>Test</title><link rel="icon" href="data:;base64,="><meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate"><script src="https://cdn.bootcdn.net/ajax/libs/echarts/5.4.3/echarts.min.js"></script>
</head>
<body><div id="container" style="width: 600px; height: 500px;"></div>
</body>
<script>echart = echarts.init(document.getElementById("container"));option = {title: {text: 'Radar Chart'},legend: {data: ['Allocated Budget', 'Actual Spending']},radar: {indicator: [{ name: 'Sales', max: 6500 },{ name: 'Administration', max: 16000 },{ name: 'Technology', max: 30000 },{ name: 'Customer', max: 38000 },{ name: 'Development', max: 52000 },{ name: 'Marketing', max: 25000 }]},series: [{name: 'Budget vs spending',type: 'radar',data: [{value: [4200, 3000, 20000, 35000, 50000, 18000],name: 'Allocated Budget'},{value: [5000, 14000, 28000, 26000, 42000, 21000],name: 'Actual Spending'}]}]};echart.setOption(option);
</script>
</html>
- HTML页面效果
5. 地图
<!DOCTYPE html>
<html lang="en">
<head><title>Test</title><link rel="icon" href="data:;base64,="><meta charset="UTF-8"><meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate"><meta name="viewport" content="width=device-width, initial-scale=1.0"><script src="https://cdn.bootcdn.net/ajax/libs/echarts/5.4.3/echarts.min.js"></script><script src="https://cdn.jsdelivr.net/npm/echarts/map/js/china.js"></script>
</head>
<body><div id="container" style="width: 800px; height: 600px;"></div><script>data_list = [{name:'黑龙江',value:-2}, {name:'吉林',value:0}, {name:'辽宁',value:5},{name:'北京',value:10}, {name:'天津',value:11}, {name:'山东',value:10},{name:'河北',value:9}, {name:'河南',value:7}, {name:'湖北',value:12},{name:'湖南',value:11}, {name:'江苏',value:12}, {name:'安徽',value:12},{name:'上海',value:12}, {name:'浙江',value:11}, {name:'福建',value:13},{name:'广东',value:17}, {name:'四川',value:11}, {name:'重庆',value:11},{name:'江西',value:10}, {name:'陕西',value:10}, {name:'贵州',value:10},{name:'广西',value:10}, {name:'山西',value:10}, {name:'云南',value:17},{name:'甘肃',value:0}, {name:'内蒙古',value:0}, {name:'海南',value:21},{name:'新疆',value:0}, {name:'宁夏',value:0}, {name:'青海',value:-1},{name:'西藏',value:0}, {name:'香港',value:17}, {name:'澳门',value:17},{name:'台湾',value:12},]data_value_list = [-2,0,5,10,11,10,9,7,12,11,12,12,12,11,13,17,11,11,10,10,10,10,10,17,0,0,21,0,0,-1,0,17,17,12]option = {title: {text: '全国省市温度',x: 'center'},tooltip: {trigger: 'item',formatter: '省市：{b}<br/>温度：{c}'},dataRange: {min: 0,max: Math.max.apply(null, data_value_list),x: 'left',y: 'bottom',text: ['高', '低'],calculable: true,color: ['orangered', 'yellow', 'lightskyblue']},series: [{name: '数据',type: 'map',mapType: 'china',roam: false,itemStyle: {normal: { label: { show: true } },emphasis: { label: { show: true } }},data: data_list}]};echart = echarts.init(document.getElementById('container'));echart.setOption(option);</script>
</body>
</html>
- HTML页面效果
三、应用
1. 动画
- 动画延迟开始
<!DOCTYPE html>
<html lang="en">
<head><title>Test</title><link rel="icon" href="data:;base64,="><meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate"><script src="https://cdn.bootcdn.net/ajax/libs/echarts/5.4.3/echarts.min.js"></script>
</head>
<body><div id="container" style="width: 600px; height: 500px;"></div></body>
<script>echart = echarts.init(document.getElementById("container"));var xAxisData = [];var data1 = [];var data2 = [];for (var i = 0; i < 100; i++) {xAxisData.push('A' + i);data1.push((Math.sin(i / 5) * (i / 5 - 10) + i / 6) * 5);data2.push((Math.cos(i / 5) * (i / 5 - 10) + i / 6) * 5);}option = {legend: {data: ['bar1', 'bar2']},xAxis: {data: xAxisData,splitLine: {show: false}},yAxis: {},series: [{name: 'bar1',type: 'bar',data: data1,emphasis: {focus: 'series'},animationDelay: function(idx) {return idx * 10;}},{name: 'bar2',type: 'bar',data: data2,emphasis: {focus: 'series'},animationDelay: function(idx) {return idx * 10 + 100;}}],animationEasing: 'elasticOut',animationDelayUpdate: function(idx) {return idx * 5;}};echart.setOption(option);
</script>
</html>
- HTML页面效果
2. 交互
- 用鼠标可以拖拽曲线的点，从而改变曲线的形状
<!DOCTYPE html>
<html lang="en">
<head><title>Test</title><link rel="icon" href="data:;base64,="><meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate"><script src="https://cdn.bootcdn.net/ajax/libs/echarts/5.4.3/echarts.min.js"></script>
</head>
<body><div id="container" style="width: 600px; height: 500px;"></div></body>
</body>
<script>var symbolSize = 20;var data = [[15, 0],[-50, 10],[-56.5, 20],[-46.5, 30],[-22.1, 40]];var myChart = echarts.init(document.getElementById('container'));myChart.setOption({tooltip: {triggerOn: 'none',formatter: function(params) {return ('X: ' +params.data[0].toFixed(2) +'<br />Y: ' +params.data[1].toFixed(2));}},xAxis: { min: -100, max: 80, type: 'value', axisLine: { onZero: false } },yAxis: { min: -30, max: 60, type: 'value', axisLine: { onZero: false } },series: [{ id: 'a', type: 'line', smooth: true, symbolSize: symbolSize, data: data }]});myChart.setOption({graphic: echarts.util.map(data, function(item, dataIndex) {return {type: 'circle',position: myChart.convertToPixel('grid', item),shape: { r: symbolSize / 2 },invisible: true,draggable: true,ondrag: echarts.util.curry(onPointDragging, dataIndex),onmousemove: echarts.util.curry(showTooltip, dataIndex),onmouseout: echarts.util.curry(hideTooltip, dataIndex),z: 100};})});window.addEventListener('resize', function() {myChart.setOption({graphic: echarts.util.map(data, function(item, dataIndex) {return { position: myChart.convertToPixel('grid', item) };})});});function showTooltip(dataIndex) {myChart.dispatchAction({type: 'showTip',seriesIndex: 0,dataIndex: dataIndex});}function hideTooltip(dataIndex) {myChart.dispatchAction({ type: 'hideTip' });}function onPointDragging(dataIndex, dx, dy) {data[dataIndex] = myChart.convertFromPixel('grid', this.position);myChart.setOption({series: [{id: 'a',data: data}]});}
</script>
</html>
- HTML页面效果
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