學習Echart 2.2.7
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2022-03-07 16:13:31
Force力导向图实现节点可折叠 ECharts · Example ......
<!--
Echart 2.2.7
http://echarts.baidu.com/echarts2/doc/example/force1.html#macarons
https://github.com/apache/incubator-echarts
https://github.com/apache/incubator-echarts/releases?after=2.2.7
Force力导向图实现节点可折叠
-->
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="ECharts">
<meta name="author" content="geovindu@gmail.com">
<title>Force力导向图实现节点可折叠 ECharts · Example</title>
</head>
<body>
<div id="main" style="width: 850px; height: 500px"></div>
<div id="ss" ></div>
<script src="build/dist/echarts.js"></script>
<script type="text/javascript">
require.config({
paths : {
echarts : 'build/dist', //echarts文件路径
theme: 'theme/',
theme2: 'theme/'
}
});
require([ "echarts", //和实际文件径无关，只是一个对象
'theme/blue', //样式
"echarts/chart/force"
],
function(ec,theme) {
var myChart = ec.init(document.getElementById('main'), 'macarons',theme);
var option = {
title: {
text: '大学概况',//主标题
subtext: '组成部分',//副标题
top: 'top',//相对在y轴上的位置
left: 'center'//相对在x轴上的位置
},
tooltip : {
show : false
},
toolbox: { //显示工具条
show: true,
feature : {
restore : {show: true},
magicType: {show: true, type: ['force', 'chord']},
saveAsImage : {show: true}
}
},
series : [ {
type : 'force',
name : "Force tree",
itemStyle : {
normal : {
label : {show : true},
nodeStyle : {
brushType : 'both',
borderColor : 'rgba(255,215,0,0.4)',
borderWidth : 1
}
}
},
categories : [ {name : '学校'}, {name : '校区'}, {name : '学院'}, {name : '班级'} ],
nodes :
[{id:0,category:0,name:'0',label:'北京理工大学',symbolSize:40,ignore:false,flag:true},
{id:1,category:1,name:'1',label:'海淀校区',symbolSize:30,ignore:true,flag:true},
{id:2,category:2,name:'2',label:'理工学院',symbolSize:20,ignore:true,flag:true},
{id:3,category:2,name:'3',label:'经管学院',symbolSize:20,ignore:true,flag:true},
{id:4,category:1,name:'4',label:'珠海校区',symbolSize:30,ignore:true,flag:true},
{id:5,category:2,name:'5',label:'法学院',symbolSize:20,ignore:true,flag:true},
{id:6,category:2,name:'6',label:'文学院',symbolSize:20,ignore:true,flag:true},
{id:7,category:2,name:'7',label:'理学院',symbolSize:20,ignore:true,flag:true},
{id:8,category:1,name:'8',label:'朝阳校区',symbolSize:30,ignore:true,flag:true},
{id:9,category:2,name:'9',label:'计算机科学学院',symbolSize:20,ignore:true,flag:true},
{id:10,category:2,name:'10',label:'工学院',symbolSize:20,ignore:true,flag:true},
{id:11,category:2,name:'11',label:'艺术学院',symbolSize:20,ignore:true,flag:true},
{id:12,category:2,name:'12',label:'医学院',symbolSize:20,ignore:true,flag:true},
{id:13,category:3,name:'13',label:'一班',number:45,techear:'张三',symbolSize:10,ignore:true,flag:true},
{id:14,category:3,name:'14',label:'二班',number:52,techear:'李四',symbolSize:10,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} ]
} ]
};
myChart.setOption(option);
var ecConfig = require('echarts/config'); //和实际文件径无关，只是一个对象
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.category == (categoryLength - 1)) {
alert(data.label);
}
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>