學習Echart 2.2.7

2018-07-03 01:25:44来源：博客园阅读 ()

<!-- 
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>

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