Vue+G6: 开箱即用的树形图组件

本文主要是介绍Vue+G6: 开箱即用的树形图组件，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

利用树形图展示数据、父组件中使用props传值，传递展示的数据、线条颜色、布局方式等

1 组件效果展示

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2 使用组件步骤

2.1在项目中引用G6

Step 1: 使用命令行在项目目录下执行以下命令：

npm install --save @antv/g6

Step 2: 在需要用的 G6 的 JS 文件中导入：

import G6 from '@antv/g6';

Step 3: 在 HTML 中使用 CDN 引入

// version <= 3.2
<script src="https://gw.alipayobjects.com/os/antv/pkg/_antv.g6-{$version}/build/g6.js"></script>
// version >= 3.3
<script src="https://gw.alipayobjects.com/os/lib/antv/g6/{$version}/dist/g6.min.js"></script>
// version >= 4.0
<script src="https://gw.alipayobjects.com/os/lib/antv/g6/4.3.11/dist/g6.min.js"></script>

⚠️ 注意:
在 {$version} 中填写版本号，例如 3.7.1；

2.2 ctrl c + ctrl v此自定义组件

复制博主的自定义组件代码（treeDiagram）到自己的项目中
代码在文章最下面

2.3 引用组件treeDiagram

2.3.1 引用组件

import treeDiagram from '@/components/treeDiagram/treeDiagram.vue';

在这里插入图片描述

2.3.2 参数说明

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2.3.3 传入的数据举例

getDatas: {"name": "Information A","children": [{"name": "Information","percentage": "60%","children": [{"name": "Information C","percentage": "80%","children": [{"name": "Information C","percentage": "80%"},{"name": "Information D","percentage": "20%"}]},{"name": "Information D","percentage": "20%"}]},{"name": "Information C","percentage": "10%"},{"name": "Information B","percentage": "20%"},{"name": "Information C","percentage": "20%"},{"name": "Information C","percentage": "20%","children": [{"name": "Information","percentage": "20%"},{"name": "Information A","percentage": "20%"}]}]}

2.3.4 完整代码

<template><div class="main-content-box"><div id="container"></div></div>
</template><script>import G6 from '@antv/g6';export default {name: 'treeDiagram',props: {staticDatas: {type: Object,required: true},//线条颜色lineColor: {type: String,default: "#00BFFF"},//布局treeDirection: {type: String,default: "LR"},//有孩子节点的标签边框颜色strokeColor1: {type: String,default: "#00BFFF"},//无孩子节点的标签边框颜色strokeColor2: {type: String,default: "#7CFC00"},// 文字颜色textColor: {type: String,default: "#666"}},data () {return {}},mounted() {this.getInit();},methods: {getInit () {let vm = this;G6.registerNode('tree-node', {drawShape: function drawShape(cfg, group) {// console.log(cfg)// --------------------标签内容节点----------------------let hasChildren = cfg.children && cfg.children.length > 0;   // 是否有孩子节点let strokeColor =  hasChildren == true ? vm.strokeColor1 : vm.strokeColor2;     // 有无孩子节点 的边框颜色不同// 节点设置 const rect = group.addShape('rect', {attrs: {fill: '#fff',stroke: strokeColor,  // 边框颜色lineWidth: 1,       // 边框粗细radius: 8,shadowBlur: 15,shadowColor: '#666',// shadowOffsetX: 2,// shadowOffsetY: 2},name: 'rect-shape',});// 文本设置const text = group.addShape('text', {attrs: {text: cfg.name,       // 赋值name属性fontFamily: 'normal',fontSize: 11,fontWeight: 800,x: 0,y: 0,textAlign: 'left',textBaseline: 'middle',fill: vm.textColor},name: 'text-shape',});const bbox = text.getBBox();   // 获得文本的盒子 之后的两个节点的xy轴坐标参考bbox//const minbbox = rect.getBBox();// 设置 rect方框和text文本 的 x y坐标轴// rect主节点的长度由其中的文本影响rect.attr({x: -bbox.width / 2 - 5,y: -bbox.height,// width: bbox.width + (hasChildren ? 20 : 12),width: bbox.width +  12 ,height: bbox.height + 8,});text.attr({x: -bbox.width / 2,y: -bbox.height / 2 + 3,})// -----------百分比节点----------var hasPercentage = cfg.percentage;var rect2 = 0;if(hasPercentage){// 节点设置 2rect2 = group.addShape('rect', {attrs: {fill: '#fff',stroke: '',  // 边框颜色lineWidth: 0,       // 边框粗细radius: 2,shadowBlur: 15,shadowColor: '#666'},name: 'rect-shape2',});// 文本设置 2const text2 = group.addShape('text', {attrs: {text: cfg.percentage,       // 赋值name属性fontFamily: 'normal',fontSize: 5,fontWeight: 700,textAlign: 'left',textBaseline: 'middle',fill: '#666'},name: 'text-shape2',});// 设置坐标轴和宽高rect2.attr({x: -bbox.width / 2 - 24,y: -bbox.height / 2 - 1,width: 14,height: 10,});text2.attr({x: -bbox.width / 2 - 23,y: -bbox.height / 2 + 4,})// -------连接两个节点的小节点----------// const rect3 = group.addShape('rect', {//     attrs: {//         fill: '#00BFFF',//         stroke: '',  // 边框颜色//         lineWidth: 0,       // 边框粗细//         shadowBlur: 0,//         shadowColor: '',//     },//     name: 'rect-shape3',// });// rect3.attr({//     x: -bbox.width / 2 - 24 + 14,   // 即：rect的坐标 + rect的宽 //     y: -bbox.height / 4 + 1,//     width: 4,//     height: 4// });// -------连接两个节点的小节点 三角形----------// 需要设置svg才能使用group.addShape('dom', {attrs: {x: -bbox.width / 2 - 24 + 14,   // 即：rect的坐标 + rect的宽 y: -bbox.height / 2 - 1,width: 10,height: 10,html: `<div style="border-left: 5px solid #00BFFF; border-right: 5px solid transparent;border-top: 5px solid transparent;border-bottom: 5px solid transparent;"></div>`,},draggable: true,});}// 小圆圈if (hasChildren) {const redcircle = group.addShape('marker', {attrs: {symbol: cfg.collapsed ? G6.Marker.expand : G6.Marker.collapse,// symbol: cfg.collapsed ? COLLAPSE_ICON : EXPAND_ICON,stroke: '#00BFFF',fill: '#00BFFF',lineWidth: 1.8,},name: 'collapse-icon',});redcircle.attr({x: bbox.width / 2 + 7,y: -3 ,r: 4,})}return rect;},update: (cfg, item) => {const group = item.getContainer();const icon = group.find((e) => e.get('name') === 'collapse-icon');icon.attr('symbol', cfg.collapsed ? G6.Marker.expand : G6.Marker.collapse);},},'single-node',);const container = document.getElementById('container');const width = container.scrollWidth;const height = container.scrollHeight || 500;const graph = new G6.TreeGraph({renderer : 'svg',     // 创建自定义DMO时定义 会报一个错 但好像不影响 container: 'container',width,height,modes: {default: [{type: 'collapse-expand',onChange: function onChange(item, collapsed) {const data = item.get('model');graph.updateItem(item, {collapsed,});data.collapsed = collapsed;return true;},},'drag-canvas',    // 拖动'zoom-canvas',    // 收缩],},defaultNode: {type: 'tree-node',anchorPoints: [[0, 0.5],[1, 0.5],],},// 设置边的参数defaultEdge: {type: 'cubic-horizontal',style: {stroke: this.lineColor},},layout: {type: 'indented',direction: this.treeDirection,dropCap: false,indent: 190,getHeight: () => {return 13;},getVGap: function getVGap () {return 10;},},});graph.data(this.staticDatas);graph.render();graph.fitView();if (typeof window !== 'undefined')window.onresize = () => {if (!graph || graph.get('destroyed')) return;if (!container || !container.scrollWidth || !container.scrollHeight) return;graph.changeSize(container.scrollWidth, container.scrollHeight);};},}}</script><style scoped></style>