echart 动画饼图_echarts构建关系图，节点可收缩和展开，可添加点击事件

echarts下载及使用

ECharts，一个使用 JavaScript 实现的开源可视化库，可以流畅的运行在 PC 和移动设备上，兼容当前绝大部分浏览器（IE8/9/10/11，Chrome，Firefox，Safari等），底层依赖轻量级的矢量图形库 ZRender，提供直观，交互丰富，可高度个性化定制的数据可视化图表。 ECharts 提供了常规的折线图、柱状图、散点图、饼图、K线图，用于统计的盒形图，用于地理数据可视化的地图、热力图、线图，用于关系数据可视化的关系图、旭日图，多维数据可视化的平行坐标，还有用于 BI 的漏斗图，仪表盘，并且支持图与图之间的混搭。

这里我们用echarts来绘制关系图，它长这样。

echarts的使用与配置

1.下载下载地址：https://echarts.apache.org/zh/download.html

从github上下载，我们需要的是这个文件

这里我们可以挑一个下载，一般来说，压缩版的echart.min.js就够用了。

5分钟上手echarts

先用官网的例子做个演示，顺便检查前期的准备是否就绪。 1.首先，创建一个html文件。我使用的是vs_code编辑器。当然方法多种多样，就看大家各显神通了。 2.引入echarts

<!DOCTYPE html>
<html>
<head><meta charset="utf-8"><!-- 引入 ECharts 文件 --><script src="echarts.min.js"></script>
</head>
</html>

这里需要注意，引用echarts时路径要正确，比如

那么我们引用时就要这么写

<script src="D:echartsecharts项目1echarts.min.js"></script>

当然更简单的方法是，将echarts.min.js和html文件放在同一个文件夹里面。这样就可以直接引用

<script src="echarts.min.js"></script>

3.准备一个DOM容器，设置窗口的宽和高（必须有，不然显示不出来）

<body><!-- 为 ECharts 准备一个具备大小（宽高）的 DOM --><div id="main" style="width: 600px;height:400px;"></div>
</body>

4.初始化一个echarts实例。完整代码：

<!DOCTYPE html>
<html>
<head><meta charset="utf-8"><title>ECharts</title><!-- 引入 echarts.js --><script src="echarts.min.js"></script>
</head>
<body><!-- 为ECharts准备一个具备大小（宽高）的Dom --><div id="main" style="width: 600px;height:400px;"></div><script type="text/javascript">// 基于准备好的dom，初始化echarts实例var myChart = echarts.init(document.getElementById('main'));// 指定图表的配置项和数据var option = {title: {text: 'ECharts 入门示例'},tooltip: {},legend: {data:['销量']},xAxis: {data: ["衬衫","羊毛衫","雪纺衫","裤子","高跟鞋","袜子"]},yAxis: {},series: [{name: '销量',type: 'bar',data: [5, 20, 36, 10, 10, 20]}]};// 使用刚指定的配置项和数据显示图表。myChart.setOption(option);</script>
</body>
</html>

5.双击刚刚写好的html。如果你看到这样的图，那么我们可以开始构建关系图了。

echarts使用过程中可能出现的问题及解决办法

1.运行后web上空白，无显示。原因：ecahrts.js文件不对解决办法： 1.http://echarts.baidu.com/build/dist/echarts-all.js 把之前的js换成这个。

<script src="http://echarts.baidu.com/build/dist/echarts.js"></script>

2.下载正确的文件，我之前遇到的坑，用echarts.simple.js和echarts.all.js就不行，所以我建议大家就用ecahrts.min.js或者echarts.js。

节点的收缩与展开

直接上代码

<!DOCTYPE html>
<html><head><meta charset="UTF-8"><title>关系图</title>
</head><body><div id="main" style="width: 1200px; height: 700px"></div><div id="ss"></div><script src="http://echarts.baidu.com/build/dist/echarts.js"></script><script type="text/javascript">require.config({paths: {echarts: 'http://echarts.baidu.com/build/dist'}});require(["echarts", "echarts/chart/force"], function(ec) {var myChart = ec.init(document.getElementById('main'), 'macarons');var option = {tooltip: {show: false},series: [{type: 'force',name: "Force tree",itemStyle: {normal: {label: {show: true},nodeStyle: {brushType: 'both',borderColor: 'rgba(0,215,0,0.4)',borderWidth: 1}}},categories: [{name: 'lol'}, {name: '位置'}, {name: '英雄'}, {name: '技能'}],nodes: [{id: 0,category: 0,name: '0',label: '峡谷之巅',symbolSize: 60,ignore: false,flag: true}, {id: 1,category: 1,name: '1',label: '上单',symbolSize: 40,ignore: true,flag: true}, {id: 2,category: 2,name: '2',label: '剑姬',symbolSize: 20,ignore: true,flag: true}, {id: 3,category: 2,name: '3',label: '贾科斯',symbolSize: 20,ignore: true,flag: true}, {id: 4,category: 1,name: '4',label: '中单',symbolSize: 40,ignore: true,flag: true}, {id: 5,category: 2,name: '5',label: '辛德拉',symbolSize: 20,ignore: true,flag: true}, {id: 6,category: 2,name: '6',label: '阿卡丽',symbolSize: 20,ignore: true,flag: true}, {id: 7,category: 2,name: '7',label: '发条',symbolSize: 20,ignore: true,flag: true}, {id: 8,category: 1,name: '8',label: '打野',symbolSize: 40,ignore: true,flag: true}, {id: 9,category: 2,name: '9',label: '扎克',symbolSize: 20,ignore: true,flag: true}, {id: 10,category: 2,name: '10',label: '男枪',symbolSize: 20,ignore: true,flag: true}, {id: 11,category: 2,name: '11',label: '豹女',symbolSize: 20,ignore: true,flag: true}, {id: 12,category: 2,name: '12',label: '千珏',symbolSize: 20,ignore: true,flag: true}, {id: 13,category: 3,name: '13',label: '隼舞',number: 45,symbolSize: 20,ignore: true,flag: true}, {id: 14,category: 3,name: '14',label: '寒影',number: 52,symbolSize: 20,ignore: true,flag: true}, {id: 15,category: 3,name: '15',label: '霞阵',number: 52,symbolSize: 20,ignore: true,flag: true}, {id: 16,category: 3,name: '16',label: '幻樱杀缭乱',number: 52,symbolSize: 30,ignore: true,flag: true}],links: [{source: 1,target: 0}, {source: 4,target: 0}, {source: 8,target: 0}, {source: 2,target: 1}, {source: 3,target: 1}, {source: 5,target: 4}, {source: 6,target: 4}, {source: 7,target: 4}, {source: 9,target: 8}, {source: 10,target: 8}, {source: 11,target: 8}, {source: 12,target: 8}, {source: 13,target: 6}, {source: 14,target: 6}, {source: 15,target: 6}, {source: 16,target: 6}]}]};myChart.setOption(option);var ecConfig = require('echarts/config');function openOrFold(param) {var option = myChart.getOption();var nodesOption = option.series[0].nodes;var linksOption = option.series[0].links;var data = param.data;var linksNodes = [];var categoryLength = option.series[0].categories.length;if (data != null && data != undefined) {if (data.flag) {for (var m in linksOption) {if (linksOption[m].target == data.id) {linksNodes.push(linksOption[m].source);}}if (linksNodes != null && linksNodes != undefined) {for (var p in linksNodes) {nodesOption[linksNodes[p]].ignore = false;nodesOption[linksNodes[p]].flag = true;}}nodesOption[data.id].flag = false;myChart.setOption(option);} else {for (var m in linksOption) {if (linksOption[m].target == data.id) {linksNodes.push(linksOption[m].source);}if (linksNodes != null && linksNodes != undefined) {for (var n in linksNodes) {if (linksOption[m].target == linksNodes[n]) {linksNodes.push(linksOption[m].source);}}}}if (linksNodes != null && linksNodes != undefined) {for (var p in linksNodes) {nodesOption[linksNodes[p]].ignore = true;nodesOption[linksNodes[p]].flag = true;}}nodesOption[data.id].flag = true;myChart.setOption(option);}}}myChart.on(ecConfig.EVENT.CLICK, openOrFold);});</script></body></html>

点击事件的添加

在这里我添加一个跳转网页的点击事件。点击阿卡丽的技能后，跳转到技能介绍页面。

myChart.on('click', function(param) {url = 'https://www.ruan8.com/wenda/12132.html'if (param.data['category'] == '3') {window.open(url)}});

完整代码：

<!DOCTYPE html>
<html><head><meta charset="UTF-8"><title>关系图</title>
</head><body><div id="main" style="width: 1200px; height: 700px"></div><div id="ss"></div><script src="http://echarts.baidu.com/build/dist/echarts.js"></script><script type="text/javascript">require.config({paths: {echarts: 'http://echarts.baidu.com/build/dist'}});require(["echarts", "echarts/chart/force"], function(ec) {var myChart = ec.init(document.getElementById('main'), 'macarons');var option = {tooltip: {show: false},series: [{type: 'force',name: "Force tree",itemStyle: {normal: {label: {show: true},nodeStyle: {brushType: 'both',borderColor: 'rgba(0,215,0,0.4)',borderWidth: 1}}},categories: [{name: 'lol'}, {name: '位置'}, {name: '英雄'}, {name: '技能'}],nodes: [{id: 0,category: 0,name: '0',label: '峡谷之巅',symbolSize: 60,ignore: false,flag: true}, {id: 1,category: 1,name: '1',label: '上单',symbolSize: 40,ignore: true,flag: true}, {id: 2,category: 2,name: '2',label: '剑姬',symbolSize: 20,ignore: true,flag: true}, {id: 3,category: 2,name: '3',label: '贾科斯',symbolSize: 20,ignore: true,flag: true}, {id: 4,category: 1,name: '4',label: '中单',symbolSize: 40,ignore: true,flag: true}, {id: 5,category: 2,name: '5',label: '辛德拉',symbolSize: 20,ignore: true,flag: true}, {id: 6,category: 2,name: '6',label: '阿卡丽',symbolSize: 20,ignore: true,flag: true}, {id: 7,category: 2,name: '7',label: '发条',symbolSize: 20,ignore: true,flag: true}, {id: 8,category: 1,name: '8',label: '打野',symbolSize: 40,ignore: true,flag: true}, {id: 9,category: 2,name: '9',label: '扎克',symbolSize: 20,ignore: true,flag: true}, {id: 10,category: 2,name: '10',label: '男枪',symbolSize: 20,ignore: true,flag: true}, {id: 11,category: 2,name: '11',label: '豹女',symbolSize: 20,ignore: true,flag: true}, {id: 12,category: 2,name: '12',label: '千珏',symbolSize: 20,ignore: true,flag: true}, {id: 13,category: 3,name: '13',label: '隼舞',number: 45,symbolSize: 20,ignore: true,flag: true}, {id: 14,category: 3,name: '14',label: '寒影',number: 52,symbolSize: 20,ignore: true,flag: true}, {id: 15,category: 3,name: '15',label: '霞阵',number: 52,symbolSize: 20,ignore: true,flag: true}, {id: 16,category: 3,name: '16',label: '幻樱杀缭乱',number: 52,symbolSize: 30,ignore: true,flag: true}],links: [{source: 1,target: 0}, {source: 4,target: 0}, {source: 8,target: 0}, {source: 2,target: 1}, {source: 3,target: 1}, {source: 5,target: 4}, {source: 6,target: 4}, {source: 7,target: 4}, {source: 9,target: 8}, {source: 10,target: 8}, {source: 11,target: 8}, {source: 12,target: 8}, {source: 13,target: 6}, {source: 14,target: 6}, {source: 15,target: 6}, {source: 16,target: 6}]}]};myChart.setOption(option);var ecConfig = require('echarts/config');function openOrFold(param) {var option = myChart.getOption();var nodesOption = option.series[0].nodes;var linksOption = option.series[0].links;var data = param.data;var linksNodes = [];var categoryLength = option.series[0].categories.length;if (data != null && data != undefined) {if (data.flag) {for (var m in linksOption) {if (linksOption[m].target == data.id) {linksNodes.push(linksOption[m].source);}}if (linksNodes != null && linksNodes != undefined) {for (var p in linksNodes) {nodesOption[linksNodes[p]].ignore = false;nodesOption[linksNodes[p]].flag = true;}}nodesOption[data.id].flag = false;myChart.setOption(option);} else {for (var m in linksOption) {if (linksOption[m].target == data.id) {linksNodes.push(linksOption[m].source);}if (linksNodes != null && linksNodes != undefined) {for (var n in linksNodes) {if (linksOption[m].target == linksNodes[n]) {linksNodes.push(linksOption[m].source);}}}}if (linksNodes != null && linksNodes != undefined) {for (var p in linksNodes) {nodesOption[linksNodes[p]].ignore = true;nodesOption[linksNodes[p]].flag = true;}}nodesOption[data.id].flag = true;myChart.setOption(option);}}}myChart.on(ecConfig.EVENT.CLICK, openOrFold);myChart.on('click', function(param) {url = 'https://www.ruan8.com/wenda/12132.html'if (param.data['category'] == '3') {window.open(url)}});});</script></body></html>