前言

提示：以下是本篇文章正文内容，下面案例可供参考

一、绘制关系图

关系图通常包含节点和边，节点代表某类实体，边代表其相连的节点具有的某种关系。
1.当鼠标悬停在节点上，会隐藏与当前节点非直接连接的节点，而且节点是可以拖动的。

<!DOCTYPE html>
<html>
<head>
    <meta charset="'utf-8">
    <script src="echarts.min.js"></script>
    <script src="dist_echarts-wordcloud.min.js"></script>
    <!-- <script src="dataTool.js"></script> -->
</head>

<body>
    <div id="main" style="width: 600px; height: 400px;"></div>
    <script type="text/javascript">
        var myChart = echarts.init(document.getElementById('main'));
        var option = {
            title: {
                text: '关系图',
                top: '12%',
                left: 'center'
            },
            label: {
                normal: {
                    show: true
                }
            },
            legend: {
                x: 'center',
                show: true,
                top: '20%',
                data: ['男性', '女性']
            },
            series: [{
                type: 'graph',
                layout: 'force',
                symbolSize: 50,
                focusNodeAdjacency: true,

                categories: [{
                    name: '男性',
                    itemStyle: {
                        normal: {
                            color: '#009800',
                        }
                    }
                }, {
                    name: '女性',
                    itemStyle: {
                        normal: {
                            color: '#4592FF',
                        }
                    }
                }],
                label: {
                    normal: {
                        show: true,
                        textStyle: {
                            fontSize: 20
                        },
                    }
                },
                force: {
                    repulsion: 1000
                },
                edgeLabel: {
                    normal: {
                        show: true,
                        textStyle: {
                            fontSize: 10
                        },
                        formatter: '{c}'
                    }
                },
                data: [{
                    name: 'A',
                    category: 0,
                    draggable: true,
                }, {
                    name: 'B',
                    category: 1,
                    draggable: true,
                }, {
                    name: 'C',
                    category: 0,
                    draggable: true,
                }, {
                    name: 'D',
                    category: 1,
                    draggable: true,
                }, {
                    name: 'E',
                    category: 0,
                    draggable: true,
                }, {
                    name: 'F',
                    category: 1,
                    draggable: true,
                }, {
                    name: 'G',
                    category: 0,
                    draggable: true,
                }, {
                    name: 'H',
                    category: 1,
                    draggable: true,
                }],
                links: [
                    {
                        source: 0,
                        target: 1,
                        value: '夫妻',

                    }, {
                        source: 0,
                        target: 3,
                        value: '父子',
                    }, {
                        source: 0,
                        target: 5,
                        value: '朋友',
                    }, {
                        source: 0,
                        target: 5,
                        value: '同事',
                    }, {
                        source: 0,
                        target: 7,
                        value: '夫妻',
                    }, {
                        source: 1,
                        target: 7,
                        value: '朋友',
                    }, {
                        source: 1,
                        target: 4,
                        value: '朋友',
                    }, {
                        source: 1,
                        target: 6,
                        value: '朋友',
                    }
                ],
                lineStyle: {
                    normal: {
                        opacity: 0.9,
                        width: 3,
                        curveness: 0
                    }
                }
            }
            ]
        };
        myChart.setOption(option);
    </script>
</body>
</html>