antv/G6使用记录，实现简单vue组件的demo

 antv/G6是蚂蚁金服数据可视化团队出品的一个功能完备的图可视化引擎。

 介于业务需要，最近在学习G6,特此记录下~~

 简单展示：

功能点：

• 连接关系图表
  • 鼠标控制缩放
  • 节点拖动事件
  • 画布拖动事件
  • 边的状态切换
  • 边动画

特性：

  状态：G6中提供了状态管理，指的是节点或边的状态，包括交互状态和业务状态。
  动画：动画是可视化中非常重要的内容，本例中涉及到边的动画效果
  字体图标：本例中使用iconfont，具体实现参照G6官方文档，比较的详细
  布局:G6提供了一些布局的方法，只需要在实例化G6时进行配置就好，但是本例没有使用布局，而是指定了节点额度坐标

 话不多说，上代码,使用vue写的组件，代码写的比较low~~~
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: 'g6demo',data () {return {data: {randomColor: ''}}},mounted () {setTimeout(() => {this.getInit()}, 100)},methods: {getInit () {const nodes = [];const edges = [];// 中心节点const centerNode = {id: 'center',x: 500,y: 300,// type: 'center-node',size: 86,label: '网络运营商',text: '\ue827',  //对应iconfont.css 里面的content，注意加ustyle: {fill: 'red'},labelCfg: {style: {fill: "blue"}},backgroundConfig: null  // 自定义项，用于判读是否需要圆背景};nodes.push(centerNode);// 左侧一级节点const leftMoudelNode = {id: 'node1',x: 350,y: 300,label: '光纤',text: '\ue78a',style: {fill: 'Coral'},backgroundConfig: null,size: 45,}nodes.push(leftMoudelNode);edges.push({ source: 'node1', target: 'center', type: 'can-running' });let leftGzzNode = {}// 左侧添加 4 个节点for (let i = 0; i < 4; i++) {const id = 'left' + i;nodes.push({id,x: 150,y: (i + 1) * 100 + 50,type: 'leaf-node',text: '\ue60e',label: (i + 1) + '号楼',style: {fill: '#5B8FF9'},backgroundConfig: null,size: 45,});edges.push({ source: id, target: 'node1', type: 'can-running' });}for (let i = 0; i < 4; i++) {const id = 'leftNodeGzz' + i;nodes.push({id,x: 50,y: (i + 1) * 100 + 50,type: 'leaf-node',text: '\ue627',label: '黑网吧',style: {fill: '#c6E5F5'},backgroundConfig: null,size: 45,});edges.push({ source: id, target: 'left' + i, type: 'can-running' });}// 右侧添加 5 个节点for (let i = 0; i < 5; i++) {const id = 'right' + i;const edgesId = 'edgeRight' + inodes.push({id,x: 750,y: i * 100 + 50,type: 'leaf-node',text: '\ue60e',label: (i + 5) + '号楼',relation: '以太网',style: {fill: '#5B8FF9'},backgroundConfig: null,size: 45,linebackgroundConfig: {fill: 'Coral',},});edges.push({id: edgesId,source: 'center',target: id,type: 'can-running',label: id === 'right0' ? '高速宽带' : '以太网',style: {stroke: 'red'},labelCfg: {style: {fill: id === 'right0' ? 'Coral' : 'cyan'}}});}for (let i = 0; i < 5; i++) {const id = 'rightNodeGzz' + i;nodes.push({id,x: 950,y: (i + 1) * 100,type: 'leaf-node',text: '\ue64c',label: '家庭用户',style: {fill: '#c6E5F5'},backgroundConfig: null,size: 45,});edges.push({ source: 'right' + i, target: id, type: 'can-running' });}//G6.registerNode('leaf-node',{draw (cfg, group) {const { backgroundConfig: backgroundStyle, style, labelCfg: labelStyle } = cfg;if (backgroundStyle) {group.addShape('circle', {attrs: {x: 0,y: 0,r: cfg.size,...backgroundStyle,},name: 'circle-shape',});}group.addShape('circle', {attrs: {x: -120,y: 0,r: 30,...backgroundStyle,},name: 'circle-shape',});const keyShape = group.addShape('text', {attrs: {x: 0,y: 0,fontFamily: 'iconfont', // 对应css里面的font-family: "iconfont";textAlign: 'center',textBaseline: 'middle',text: cfg.text,fontSize: cfg.size,...style,},name: 'text-shape1',});const labelY = backgroundStyle ? cfg.size * 2 : cfg.size;group.addShape('text', {attrs: {x: 0,y: labelY,textAlign: 'center',text: cfg.label,...labelStyle.style,},// must be assigned in G6 3.3 and later versions. it can be any value you wantname: 'text-shape1',});return keyShape;},getAnchorPoints () {return [[0, 0.5],[1, 0.5],];},},'circle',);//使用iconfontG6.registerNode('iconfont', {draw (cfg, group) {const { backgroundConfig: backgroundStyle, style, labelCfg: labelStyle } = cfg;if (backgroundStyle) {group.addShape('circle', {attrs: {x: 0,y: 0,r: cfg.size,...backgroundStyle,},// must be assigned in G6 3.3 and later versions. it can be any value you wantname: 'circle-shape',});}group.addShape('circle', {attrs: {x: -12,y: 0,r: 30,...backgroundStyle,},name: 'circle-shape',});const keyShape = group.addShape('text', {attrs: {x: 0,y: 0,fontFamily: 'iconfont', // 对应css里面的font-family: "iconfont";textAlign: 'center',textBaseline: 'middle',text: cfg.text,fontSize: cfg.size,...style,},// must be assigned in G6 3.3 and later versions. it can be any value you wantname: 'text-shape1',});const labelY = backgroundStyle ? cfg.size * 2 : cfg.size;group.addShape('text', {attrs: {x: 0,y: labelY,textAlign: 'center',text: cfg.label,...labelStyle.style,},// must be assigned in G6 3.3 and later versions. it can be any value you wantname: 'text-shape1',});return keyShape;},});// lineDash 的差值，可以在后面提供 util 方法自动计算const dashArray = [[0, 1],[0, 2],[1, 2],[0, 1, 1, 2],[0, 2, 1, 2],[1, 2, 1, 2],[2, 2, 1, 2],[3, 2, 1, 2],[4, 2, 1, 2],];const lineDash = [4, 2, 1, 2];const interval = 9;G6.registerEdge('can-running',{setState (name, value, item) {const shape = item.get('keyShape');if (name === 'running') {if (value) {const length = shape.getTotalLength(); // 后续 G 增加 totalLength 的接口let totalArray = [];for (let i = 0; i < length; i += interval) {totalArray = totalArray.concat(lineDash);}let index = 0;shape.animate(() => {const cfg = {lineDash: dashArray[index].concat(totalArray),};index = (index + 1) % interval;return cfg;},{repeat: true,duration: 3000,},);} else {shape.stopAnimate();shape.attr('lineDash', null);}}},},'cubic-horizontal',);let COLOR = '#40a9ff'const width = document.getElementById('container').scrollWidth * 0.7;const height = document.getElementById('container').scrollHeight || 600;const graph = new G6.Graph({container: 'container',width,height,renderer: 'svg',modes: {default: ['drag-canvas','drag-node','zoom-canvas']},defaultNode: {backgroundConfig: {backgroundType: 'circle',fill: COLOR,stroke: 'LightSkyBlue',},type: 'iconfont',size: 12,style: {fill: '#DEE9FF',stroke: '#5B8FF9',},labelCfg: {style: {fill: COLOR,fontSize: 12,},},},defaultEdge: {style: {stroke: '#b5b5b5',},},});graph.data({ nodes, edges });graph.render();graph.fitView();// 响应 hover 状态graph.on('node:mouseenter', ev => {const node = ev.item;const edges = node.getEdges();edges.forEach(edge => graph.setItemState(edge, 'running', true));});graph.on('node:mouseleave', ev => {const node = ev.item;const edges = node.getEdges();edges.forEach(edge => graph.setItemState(edge, 'running', false));});let model = {type: 'can-running',text: '\ue60e',style: {stroke: 'yellow'},labelCfg: {style: {fill: 'cyan'}}};//增加edge的标识id字段后const item = graph.findById('edgeRight0');const item2 = graph.findById('edgeRight1');const item3 = graph.findById('edgeRight2');const item4 = graph.findById('edgeRight3');const item5 = graph.findById('edgeRight4');setInterval(() => {model.labelCfg.style.fill = this.getRandomColor()model.style.stroke = this.getRandomColor()graph.updateItem(item, model);graph.updateItem(item2, model);graph.updateItem(item3, model);graph.updateItem(item4, model);graph.updateItem(item5, model);}, 1000);},getRandomColor () {var rand = Math.floor(Math.random() * 0xFFFFFF).toString(16);if (rand.length == 6) {return '#' + rand;} else {return this.getRandomColor();}}}
}</script><style scoped>
</style>

  以上就是示例的完整代码，G6的版本为3.5.0，话说G6的团队真的是很勤奋，版本更新的也蛮快的，官方文档也是越来越完善。希望越做越好吧。

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