GOJS使用--前端拓扑图
1.基础版:
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引入go.js
<script src="./js/go.js" type="text/javascript"></script>
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定义html标签
<!--每个go.js图都包含在html元素中,我们需要给出一个显示的大小--> <div id="myDiagramDiv" style="400px; height:150px;background-color: #DAE4E4"></div>
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js
<script> // make构建gojs对象,使$缩写go.GraphObject var $ = go.GraphObject.make; // JS中,绘制图标时需要传递html标签的ID var myDiagram = $(go.Diagram, "myDiagramDiv", { "undoManager.isEnabled": true //启动ctrl+z撤销 和 ctrk+y 重做 } ); // 在模型数据中,每个节点都由一个JavaScript对象表示 var Mymodel = $(go.Model); Mymodel.nodeDataArray = [ {key: "Alpha"}, {key: "Beta"}, {key: "Gamma"}, ]; myDiagram.model = Mymodel </script>
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效果如下显示:可以在go.js图的范围内任意拖动三个模块,但是不难发现html上多了几行水印:
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去除水印方式:
在go.js搜索7eba17a4ca3b1a8346 # 注释掉该行 a.zr = b.V[Ra("7eba17a4ca3b1a8346")][Ra("78a118b7")](b.V, Ik, 4, 4); # 下一行添加 a.zr = function(){return true;}
2.拓扑图模块添置图片
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js
<script> // make构建gojs对象,使$缩写go.GraphObject var $ = go.GraphObject.make; // JS中,绘制图标时需要传递html标签的ID var myDiagram = $(go.Diagram, "myDiagramDiv", { "undoManager.isEnabled": true //启动ctrl+z撤销 和 ctrk+y 重做 } ); // 定义node myDiagram.nodeTemplate = $(go.Node, "Horizontal", // 添加北京颜色 此为当前节点对象 {background:"#44CCFF"}, $(go.Picture, // 图片的宽高,包括图片背景(在未设置情况下显示) {margin:10,50,height:50,background:"red"}, // Picture.source 绑定模型数据source属性的数据 new go.Binding("source") ), $(go.TextBlock, // TextBlock.text初始值 "默认值..", // 文本一些样式设置字体颜色,字体大小。。。 {margin:12,stroke:"white",font:"bold 16px sans-serif"}, // TextBlock.text 是绑定到模型数据的 name属性的数据 new go.Binding("text","name") ) ); // 在模型数据中,每个节点都由一个JavaScript对象表示 var Mymodel = $(go.Model); Mymodel.nodeDataArray = [ {name: "Alpha", "source":"img/cat1.png"}, {name: "Beta", "source":"img/cat2.png"}, {name: "Gamma", "source":"img/cat2.png"}, {/* Emoty node data */} ]; myDiagram.model = Mymodel </script>
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显示效果:
3.添置连接线
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只需要将Model模型改成TreeModel.并将定义每条数据key和parent来确定每个节点之间关系。
// key 和oarent来确定每个节点之间关系 var Mymodel = $(go.TreeModel); Mymodel.nodeDataArray = [ {name: "Alpha", "source":"img/cat1.png", key:"1"}, {name: "Beta", "source":"img/cat2.png", key:"2", parent:"1"}, {name: "Gamma", "source":"img/cat2.png", key:"3",parent:"1"}, ];
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显示效果
4.图标布局 树形结构先似乎
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需要定义layout.来构建树形结构
<script> // make构建gojs对象,使$缩写go.GraphObject var $ = go.GraphObject.make; // JS中,绘制图标时需要传递html标签的ID var myDiagram = $(go.Diagram, "myDiagramDiv", { "undoManager.isEnabled": true, //启动ctrl+z撤销 和 ctrk+y 重做 // 指定一个树形结构:从上到下 // TreeLayout 默认未从左到右流动,当设置90从上到下,当设置180,从右向左,当设置270表示从下到上 // layerSpacing 实行结构每一层的间距 layout: $(go.TreeLayout, {angle:90,layerSpacing:50} ) } ); // 定义node myDiagram.nodeTemplate = $(go.Node, "Horizontal", // 添加北京颜色 此为当前节点对象 {background:"#44CCFF"}, $(go.Picture, // 图片的宽高,包括图片背景(在未设置情况下显示) {margin:10,50,height:50,background:"red"}, // Picture.source 绑定模型数据source属性的数据 new go.Binding("source") ), $(go.TextBlock, // TextBlock.text初始值 "默认值..", // 文本一些样式设置字体颜色,字体大小。。。 {margin:12,stroke:"white",font:"bold 16px sans-serif"}, // TextBlock.text 是绑定到模型数据的 name属性的数据 new go.Binding("text","name") ) ); // 在模型数据中,每个节点都由一个JavaScript对象表示 var Mymodel = $(go.TreeModel); Mymodel.nodeDataArray = [ {name: "Alpha", "source":"img/cat1.png", key:"1"}, {name: "Beta", "source":"img/cat2.png", key:"2", parent:"1"}, {name: "Gamma", "source":"img/cat3.png", key:"3",parent:"1"}, {name: "Jellylorum", "source":"img/cat4.png", key:"4",parent:"3"}, {name: "Alonzo", "source":"img/cat5.png", key:"5",parent:"3"}, {name: "Munkustrap", "source":"img/cat6.png", key:"6",parent:"2"}, ]; myDiagram.model = Mymodel </script>
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显示效果
5.链接模式
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需要定义路线模板和箭头模板
<script> // make构建gojs对象,使$缩写go.GraphObject var $ = go.GraphObject.make; // JS中,绘制图标时需要传递html标签的ID var myDiagram = $(go.Diagram, "myDiagramDiv", { "undoManager.isEnabled": true, //启动ctrl+z撤销 和 ctrk+y 重做 // 指定一个树形结构:从上到下 // TreeLayout 默认未从左到右流动,当设置90从上到下,当设置180,从右向左,当设置270表示从下到上 // layerSpacing 实行结构每一层的间距 layout: $(go.TreeLayout, {angle:90,layerSpacing:50} ) } ); // 定义node myDiagram.nodeTemplate = $(go.Node, "Horizontal", // 添加北京颜色 此为当前节点对象 {background:"#44CCFF"}, $(go.Picture, // 图片的宽高,包括图片背景(在未设置情况下显示) {margin:10,50,height:50,background:"red"}, // Picture.source 绑定模型数据source属性的数据 new go.Binding("source") ), $(go.TextBlock, // TextBlock.text初始值 "默认值..", // 文本一些样式设置字体颜色,字体大小。。。 {margin:12,stroke:"white",font:"bold 16px sans-serif"}, // TextBlock.text 是绑定到模型数据的 name属性的数据 new go.Binding("text","name") ) ); // 定义一个有箭头路线模板 myDiagram.linkTemplate = $(go.Link, // routing默认未go.Link.Normal // corner 为转角值,就是线置交转交的弧度 {routing:go.Link.Orthogonal, corner:5}, // strokeWidth 线的粗细,stroke 线的颜色 $(go.Shape,{strokeWidth:3, stroke: "#555"}), // 生成箭头模板toArrow:Standard,OpenTriangle... stroke为箭头颜色 $(go.Shape,{toArrow:"Standard",stroke:null}) ); // 在模型数据中,每个节点都由一个JavaScript对象表示 var Mymodel = $(go.TreeModel); Mymodel.nodeDataArray = [ {name: "Alpha", "source":"img/cat1.png", key:"1"}, {name: "Beta", "source":"img/cat2.png", key:"2", parent:"1"}, {name: "Gamma", "source":"img/cat3.png", key:"3",parent:"1"}, {name: "Jellylorum", "source":"img/cat4.png", key:"4",parent:"3"}, {name: "Alonzo", "source":"img/cat5.png", key:"5",parent:"3"}, {name: "Munkustrap", "source":"img/cat6.png", key:"6",parent:"2"}, ]; myDiagram.model = Mymodel </script>
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显示效果:
6.自定义:
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js版本:
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Flowchart</title> <meta name="description" content="Interactive flowchart diagram implemented by GoJS in JavaScript for HTML."/> <meta name="viewport" content="width=device-width, initial-scale=1"> <!-- Copyright 1998-2020 by Northwoods Software Corporation. --> <script src="./js/go.js"></script> <link href='https://fonts.googleapis.com/css?family=Lato:300,400,700' rel='stylesheet' type='text/css'> <!--<script src="../assets/js/goSamples.js"></script> <!– this is only for the GoJS Samples framework –>--> <script id="code"> function init() { // 初始化示例 // if (window.goSamples) goSamples(); // init for these samples -- you don't need to call this // make构建模板 var $ = go.GraphObject.make; // for conciseness in defining templates myDiagram = $(go.Diagram, document.getElementById("myDiagramDiv"), // must name or refer to the DIV HTML element { // 每次画线后调用的事件:为条件连线加上标签 "LinkDrawn": showLinkLabel, // this DiagramEvent listener is defined below // 每次重画线后调用的事件 "LinkRelinked": showLinkLabel, // 启用Ctrl-Z和Ctrl-Y撤销重做功能 "undoManager.isEnabled": true, // enable undo & redo // 居中显示内容 initialContentAlignment: go.Spot.Center, // 是否允许从Palette面板拖入元素 allowDrop: true, }); // 当图有改动时,在页面标题后加*,且启动保存按钮 myDiagram.addDiagramListener("Modified", function (e) { var button = document.getElementById("SaveButton"); if (button) button.disabled = !myDiagram.isModified; var idx = document.title.indexOf("*"); if (myDiagram.isModified) { if (idx < 0) document.title += "*"; } else { if (idx >= 0) document.title = document.title.substr(0, idx); } }); // 设置节点位置风格,并与模型"loc"属性绑定,该方法会在初始化各种节点模板时使用 function nodeStyle() { return [ // 将节点位置信息 Node.location 同节点模型数据中 "loc" 属性绑定: // 节点位置信息从 节点模型 "loc" 属性获取, 并由静态方法 Point.parse 解析. // 如果节点位置改变了, 会自动更新节点模型中"loc"属性, 并由 Point.stringify 方法转化为字符串 new go.Binding("location", "loc", go.Point.parse).makeTwoWay(go.Point.stringify), { // 节点位置 Node.location 定位在节点的中心 locationSpot: go.Spot.Center } ]; } // 创建"port"方法,"port"是一个透明的长方形细长图块,在每个节点的四个边界上,如果鼠标移到节点某个边界上,它会高亮 // "name": "port" ID,即GraphObject.portId, // "align": 决定"port" 属于节点4条边的哪条 // "spot": 控制连线连入/连出的位置,如go.Spot.Top指, go.Spot.TopSide // "output" / "input": 布尔型,指定是否允许连线从此"port"连入或连出 function makePort(name, align, spot, output, input) { // 表示如果是上,下,边界则是水平的"port" var horizontal = align.equals(go.Spot.Top) || align.equals(go.Spot.Bottom); return $(go.Shape, { fill: "transparent", // 默认透明不现实 strokeWidth: 0, // 无边框 horizontal ? NaN : 8, // 垂直"port"则8像素宽 height: !horizontal ? NaN : 8, // 水平"port"则8像素 alignment: align, // 同其节点对齐 stretch: (horizontal ? go.GraphObject.Horizontal : go.GraphObject.Vertical),//自动同其节点一同伸缩 portId: name, // 声明ID fromSpot: spot, // 声明连线头连出此"port"的位置 fromLinkable: output, // 布尔型,是否允许连线从此"port"连出 toSpot: spot, // 声明连线尾连入此"port"的位置 toLinkable: input, // 布尔型,是否允许连线从此"port"连出 cursor: "pointer", // 鼠标由指针改为手指,表示此处可点击生成连线 mouseEnter: function (e, port) { //鼠标移到"port"位置后,高亮 if (!e.diagram.isReadOnly) port.fill = "rgba(255,0,255,0.5)"; }, mouseLeave: function (e, port) {// 鼠标移出"port"位置后,透明 port.fill = "transparent"; } }); } // 定义图形上的文字风格 function textStyle() { return { font: "bold 11pt Lato, Helvetica, Arial, sans-serif", stroke: "#F8F8F8" } } // 定义步骤(默认类型)节点的模板 myDiagram.nodeTemplateMap.add("", // the default category $(go.Node, "Table", nodeStyle(), // 步骤节点是一个包含可编辑文字块的长方形图块 $(go.Panel, "Auto", $(go.Shape, "Rectangle", {fill: "#282c34", stroke: "#00A9C9", strokeWidth: 3.5}, new go.Binding("figure", "figure")), $(go.TextBlock, textStyle(), { margin: 8, maxSize: new go.Size(160, NaN), wrap: go.TextBlock.WrapFit,// 尺寸自适应 editable: true// 文字可编辑 }, new go.Binding("text").makeTwoWay())// 双向绑定模型中"text"属性 ), // 上、左、右可以入,左、右、下可以出 // "Top"表示中心,"TopSide"表示上方任一位置,自动选择 makePort("T", go.Spot.Top, go.Spot.TopSide, false, true), makePort("L", go.Spot.Left, go.Spot.LeftSide, true, true), makePort("R", go.Spot.Right, go.Spot.RightSide, true, true), makePort("B", go.Spot.Bottom, go.Spot.BottomSide, true, false) )); // 定义条件节点的模板 myDiagram.nodeTemplateMap.add("Conditional", $(go.Node, "Table", nodeStyle(), // 条件节点是一个包含可编辑文字块的菱形图块 $(go.Panel, "Auto", $(go.Shape, "Diamond", {fill: "#282c34", stroke: "#00A9C9", strokeWidth: 3.5}, new go.Binding("figure", "figure")), $(go.TextBlock, textStyle(), { margin: 8, maxSize: new go.Size(160, NaN), wrap: go.TextBlock.WrapFit, editable: true }, new go.Binding("text").makeTwoWay()) ), // 上、左、右可以入,左、右、下可以出 makePort("T", go.Spot.Top, go.Spot.Top, false, true), makePort("L", go.Spot.Left, go.Spot.Left, true, true), makePort("R", go.Spot.Right, go.Spot.Right, true, true), makePort("B", go.Spot.Bottom, go.Spot.Bottom, true, false) )); // 定义开始节点的模板 myDiagram.nodeTemplateMap.add("Start", $(go.Node, "Table", nodeStyle(), $(go.Panel, "Spot", $(go.Shape, "Circle", {desiredSize: new go.Size(70, 70), fill: "#282c34", stroke: "#09d3ac", strokeWidth: 3.5}), $(go.TextBlock, "Start", textStyle(), new go.Binding("text")) ), // 左、右、下可以出,但都不可入 makePort("L", go.Spot.Left, go.Spot.Left, true, false), makePort("R", go.Spot.Right, go.Spot.Right, true, false), makePort("B", go.Spot.Bottom, go.Spot.Bottom, true, false) )); // 定义结束节点的模板 myDiagram.nodeTemplateMap.add("End", $(go.Node, "Table", nodeStyle(), // 结束节点是一个圆形图块,文字不可编辑 $(go.Panel, "Spot", $(go.Shape, "Circle", {desiredSize: new go.Size(60, 60), fill: "#282c34", stroke: "#DC3C00", strokeWidth: 3.5}), $(go.TextBlock, "End", textStyle(), new go.Binding("text")) ), // 上、左、右可以入,但都不可出 makePort("T", go.Spot.Top, go.Spot.Top, false, true), makePort("L", go.Spot.Left, go.Spot.Left, false, true), makePort("R", go.Spot.Right, go.Spot.Right, false, true) )); // taken from ../extensions/Figures.js: go.Shape.defineFigureGenerator("File", function (shape, w, h) { var geo = new go.Geometry(); var fig = new go.PathFigure(0, 0, true); // starting point geo.add(fig); fig.add(new go.PathSegment(go.PathSegment.Line, .75 * w, 0)); fig.add(new go.PathSegment(go.PathSegment.Line, w, .25 * h)); fig.add(new go.PathSegment(go.PathSegment.Line, w, h)); fig.add(new go.PathSegment(go.PathSegment.Line, 0, h).close()); var fig2 = new go.PathFigure(.75 * w, 0, false); geo.add(fig2); // The Fold fig2.add(new go.PathSegment(go.PathSegment.Line, .75 * w, .25 * h)); fig2.add(new go.PathSegment(go.PathSegment.Line, w, .25 * h)); geo.spot1 = new go.Spot(0, .25); geo.spot2 = go.Spot.BottomRight; return geo; }); // 定义注释节点的模板 myDiagram.nodeTemplateMap.add("Comment", // 注释节点是一个包含可编辑文字块的文件图块 $(go.Node, "Auto", nodeStyle(), $(go.Shape, "File", {fill: "#282c34", stroke: "#DEE0A3", strokeWidth: 3}), $(go.TextBlock, textStyle(), { margin: 8, maxSize: new go.Size(200, NaN), wrap: go.TextBlock.WrapFit,// 尺寸自适应 textAlign: "center", editable: true// 文字可编辑 }, new go.Binding("text").makeTwoWay()) // 不支持连线入和出 )); // 初始化连接线的模板 myDiagram.linkTemplate = $(go.Link, // 所有连接线 { routing: go.Link.AvoidsNodes,// 连接线避开节点 curve: go.Link.JumpOver, corner: 5, toShortLength: 4,// 直角弧度,箭头弧度 relinkableFrom: true,// 允许连线头重设 relinkableTo: true,// 允许连线尾重设 reshapable: true,// 允许线形修改 resegmentable: true,// 允许连线分割(折线)修改 // 鼠标移到连线上后高亮 mouseEnter: function (e, link) { link.findObject("HIGHLIGHT").stroke = "rgba(30,144,255,0.2)"; }, mouseLeave: function (e, link) { link.findObject("HIGHLIGHT").stroke = "transparent"; }, selectionAdorned: false }, new go.Binding("points").makeTwoWay(), // 双向绑定模型中"points"数组属性 $(go.Shape, // 隐藏的连线形状,8个像素粗细,当鼠标移上后显示 {isPanelMain: true, strokeWidth: 8, stroke: "transparent", name: "HIGHLIGHT"}), $(go.Shape, // 连线规格(颜色,选中/非选中,粗细) {isPanelMain: true, stroke: "gray", strokeWidth: 2}, new go.Binding("stroke", "isSelected", function (sel) { return sel ? "dodgerblue" : "gray"; }).ofObject()), $(go.Shape, // 箭头规格 {toArrow: "standard", strokeWidth: 0, fill: "gray"}), $(go.Panel, "Auto", // 连线标签,默认不显示 {visible: false, name: "LABEL", segmentIndex: 2, segmentFraction: 0.5}, new go.Binding("visible", "visible").makeTwoWay(),// 双向绑定模型中"visible"属性 $(go.Shape, "RoundedRectangle", // 连线中显示的标签形状 {fill: "#F8F8F8", strokeWidth: 0}), $(go.TextBlock, "Yes", // // 连线中显示的默认标签文字 { textAlign: "center", font: "10pt helvetica, arial, sans-serif", stroke: "#333333", editable: true }, new go.Binding("text").makeTwoWay()) // 双向绑定模型中"text"属性 ) ); // 此事件方法由整个画板的LinkDrawn和LinkRelinked事件触发 // 如果连线是从"conditional"条件节点出发,则将连线上的标签显示出来 function showLinkLabel(e) { var label = e.subject.findObject("LABEL"); if (label !== null) label.visible = (e.subject.fromNode.data.category === "Conditional"); } // 临时的连线(还在画图中),包括重连的连线,都保持直角 myDiagram.toolManager.linkingTool.temporaryLink.routing = go.Link.Orthogonal; myDiagram.toolManager.relinkingTool.temporaryLink.routing = go.Link.Orthogonal; load(); // load an initial diagram from some JSON text // 在图形页面的左边初始化图例Palette面板 myPalette = $(go.Palette, "myPaletteDiv", // 必须同HTML中Div元素id一致 { // Instead of the default animation, use a custom fade-down "animationManager.initialAnimationStyle": go.AnimationManager.None, "InitialAnimationStarting": animateFadeDown, // 使用此函数设置动画 nodeTemplateMap: myDiagram.nodeTemplateMap, // 同myDiagram公用一种node节点模板 model: new go.GraphLinksModel([ // 初始化Palette面板里的内容 {category: "Start", text: "Start"}, {text: "Step"}, {category: "Conditional", text: "???"}, {category: "End", text: "End"}, {category: "Comment", text: "Comment"} ]) }); // 动画效果 function animateFadeDown(e) { var diagram = e.diagram; var animation = new go.Animation(); animation.isViewportUnconstrained = true; // So Diagram positioning rules let the animation start off-screen animation.easing = go.Animation.EaseOutExpo; animation.duration = 900; // Fade "down", in other words, fade in from above animation.add(diagram, 'position', diagram.position.copy().offset(0, 200), diagram.position); animation.add(diagram, 'opacity', 0, 1); animation.start(); } } // end init // 将go模型以JSon格式保存在文本框内 function save() { document.getElementById("mySavedModel").value = myDiagram.model.toJson(); myDiagram.isModified = false; } // 初始化模型范例 function load() { myDiagram.model = go.Model.fromJson(document.getElementById("mySavedModel").value); } // 在新窗口中将图形转化为SVG,并分页打印 function printDiagram() { var svgWindow = window.open(); if (!svgWindow) return; // failure to open a new Window var printSize = new go.Size(700, 960); var bnds = myDiagram.documentBounds; var x = bnds.x; var y = bnds.y; while (y < bnds.bottom) { while (x < bnds.right) { var svg = myDiagram.makeSVG({scale: 1.0, position: new go.Point(x, y), size: printSize}); svgWindow.document.body.appendChild(svg); x += printSize.width; } x = bnds.x; y += printSize.height; } setTimeout(function () { svgWindow.print(); }, 1); } </script> </head> <body onload="init()"> <div id="sample"> <div style=" 100%; display: flex; justify-content: space-between"> <div id="myPaletteDiv" style=" 100px; margin-right: 2px; background-color: #282c34;"></div> <div id="myDiagramDiv" style="flex-grow: 1; height: 750px; background-color: #282c34;"></div> </div> <button id="SaveButton" onclick="save()">Save</button> <button onclick="load()">Load</button> Diagram Model saved in JSON format: <textarea id="mySavedModel" style="100%;height:300px"> { "class": "go.GraphLinksModel", "linkFromPortIdProperty": "fromPort", "linkToPortIdProperty": "toPort", "nodeDataArray": [ ], "linkDataArray": [ ]} </textarea> <button onclick="printDiagram()">Print Diagram Using SVG</button> </div> </body> </html>
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vue版
<template> <el-card> <my-bread level1='拓扑图' level2='拓扑图绘制'></my-bread> <div id='sample'> <div style=' 100%; display: flex; justify-content: space-between'> <div ref='myPaletteDiv' style=' 100px; margin-right: 2px; background-color: #282c34;'></div> <div ref='myDiagramDiv' style='flex-grow: 1; height: 750px; background-color: #282c34;'></div> </div> <button id='SaveButton' @click='save()'>Save</button> <button @click='load()'>Load</button> Diagram Model saved in JSON format: <textarea ref='mySavedModel' style='100%;height:300px'> {{this.diagramData}} </textarea> <button @click='printDiagram()'>Print Diagram Using SVG</button> </div> </el-card> <!-- <button @click='init()'></button>--> </template> <script> import go from 'gojs' let $ = go.GraphObject.make export default { data () { return { diagramData : { 'class': 'go.GraphLinksModel', 'linkFromPortIdProperty': 'fromPort', 'linkToPortIdProperty': 'toPort', 'nodeDataArray': [ ], 'linkDataArray': [ ]}, myDiagram: null, myPalette: null } }, mounted () { this.myDiagram = $(go.Diagram, this.$refs.myDiagramDiv, { // 每次画线后调用的事件:为条件连线加上标签 'LinkDrawn': this.showLinkLabel, // 每次重画线后调用的事件 'LinkRelinked': this.showLinkLabel, // 启用Ctrl-Z和Ctrl-Y撤销重做功能 'undoManager.isEnabled': true, // 居中显示内容 initialContentAlignment: go.Spot.Center, // 是否允许从Palette面板拖入元素 allowDrop: true, }) // console.log(this.$refs.SaveButton) // 当图有改动时,在页面标题后加*,且启动保存按钮 // this.myDiagram.addDiagramListener('Modified', function (e) { // // var button = this.$refs.SaveButton // var button = document.getElementById('SaveButton') // if (button) button.disabled =! this.myDiagram.isModified // var idx = document.title.indexOf('*') // if (this.myDiagram.isModified) { // if (idx < 0) document.title += '*' // } else { // if (idx >= 0) document.title = document.title.substr(0, idx) // } // }) // 定义步骤(默认类型)节点的模板 this.myDiagram.nodeTemplateMap.add('', $(go.Node, 'Table', this.nodeStyle(), // 步骤节点是一个包含可编辑文字块的长方形图块 $(go.Panel, 'Auto', $(go.Shape, 'Rectangle', {fill: '#282c34', stroke: '#00A9C9', strokeWidth: 3.5}, new go.Binding('figure', 'figure')), $(go.TextBlock, this.textStyle(), { margin: 8, maxSize: new go.Size(160, NaN), wrap: go.TextBlock.WrapFit,// 尺寸自适应 editable: true// 文字可编辑 }, new go.Binding('text').makeTwoWay())// 双向绑定模型中'text'属性 ), // 上、左、右可以入,左、右、下可以出 // 'Top'表示中心,'TopSide'表示上方任一位置,自动选择 this.makePort('T', go.Spot.Top, go.Spot.TopSide, false, true), this.makePort('L', go.Spot.Left, go.Spot.LeftSide, true, true), this.makePort('R', go.Spot.Right, go.Spot.RightSide, true, true), this.makePort('B', go.Spot.Bottom, go.Spot.BottomSide, true, false) )) // 定义条件节点的模板 this.myDiagram.nodeTemplateMap.add('Conditional', $(go.Node, 'Table', this.nodeStyle(), // 条件节点是一个包含可编辑文字块的菱形图块 $(go.Panel, 'Auto', $(go.Shape, 'Diamond', {fill: '#282c34', stroke: '#00A9C9', strokeWidth: 3.5}, new go.Binding('figure', 'figure')), $(go.TextBlock, this.textStyle(), { margin: 8, maxSize: new go.Size(160, NaN), wrap: go.TextBlock.WrapFit, editable: true }, new go.Binding('text').makeTwoWay()) ), // 上、左、右可以入,左、右、下可以出 this.makePort('T', go.Spot.Top, go.Spot.Top, false, true), this.makePort('L', go.Spot.Left, go.Spot.Left, true, true), this.makePort('R', go.Spot.Right, go.Spot.Right, true, true), this.makePort('B', go.Spot.Bottom, go.Spot.Bottom, true, false) )) // 定义开始节点的模板 this.myDiagram.nodeTemplateMap.add('Start', $(go.Node, 'Table', this.nodeStyle(), $(go.Panel, 'Spot', $(go.Shape, 'Circle', {desiredSize: new go.Size(70, 70), fill: '#282c34', stroke: '#09d3ac', strokeWidth: 3.5}), $(go.TextBlock, 'Start', this.textStyle(), new go.Binding('text')) ), // 左、右、下可以出,但都不可入 this.makePort('L', go.Spot.Left, go.Spot.Left, true, false), this.makePort('R', go.Spot.Right, go.Spot.Right, true, false), this.makePort('B', go.Spot.Bottom, go.Spot.Bottom, true, false) )) // 定义结束节点的模板 this.myDiagram.nodeTemplateMap.add('End', $(go.Node, 'Table', this.nodeStyle(), // 结束节点是一个圆形图块,文字不可编辑 $(go.Panel, 'Spot', $(go.Shape, 'Circle', {desiredSize: new go.Size(60, 60), fill: '#282c34', stroke: '#DC3C00', strokeWidth: 3.5}), $(go.TextBlock, 'End', this.textStyle(), new go.Binding('text')) ), // 上、左、右可以入,但都不可出 this.makePort('T', go.Spot.Top, go.Spot.Top, false, true), this.makePort('L', go.Spot.Left, go.Spot.Left, false, true), this.makePort('R', go.Spot.Right, go.Spot.Right, false, true) )); // taken from go.Shape.defineFigureGenerator('File', function (shape, w, h) { var geo = new go.Geometry(); var fig = new go.PathFigure(0, 0, true); // starting point geo.add(fig); fig.add(new go.PathSegment(go.PathSegment.Line, .75 * w, 0)); fig.add(new go.PathSegment(go.PathSegment.Line, w, .25 * h)); fig.add(new go.PathSegment(go.PathSegment.Line, w, h)); fig.add(new go.PathSegment(go.PathSegment.Line, 0, h).close()); var fig2 = new go.PathFigure(.75 * w, 0, false); geo.add(fig2); // The Fold fig2.add(new go.PathSegment(go.PathSegment.Line, .75 * w, .25 * h)); fig2.add(new go.PathSegment(go.PathSegment.Line, w, .25 * h)); geo.spot1 = new go.Spot(0, .25); geo.spot2 = go.Spot.BottomRight; return geo; }) // 定义注释节点的模板 this.myDiagram.nodeTemplateMap.add('Comment', // 注释节点是一个包含可编辑文字块的文件图块 $(go.Node, 'Auto', this.nodeStyle(), $(go.Shape, 'File', {fill: '#282c34', stroke: '#DEE0A3', strokeWidth: 3}), $(go.TextBlock, this.textStyle(), { margin: 8, maxSize: new go.Size(200, NaN), wrap: go.TextBlock.WrapFit,// 尺寸自适应 textAlign: 'center', editable: true// 文字可编辑 }, new go.Binding('text').makeTwoWay()) // 不支持连线入和出 )) // 初始化连接线的模板 this.myDiagram.linkTemplate = $(go.Link, // 所有连接线 { routing: go.Link.AvoidsNodes,// 连接线避开节点 curve: go.Link.JumpOver, corner: 5, toShortLength: 4,// 直角弧度,箭头弧度 relinkableFrom: true,// 允许连线头重设 relinkableTo: true,// 允许连线尾重设 reshapable: true,// 允许线形修改 resegmentable: true,// 允许连线分割(折线)修改 // 鼠标移到连线上后高亮 mouseEnter: function (e, link) { link.findObject('HIGHLIGHT').stroke = 'rgba(30,144,255,0.2)'; }, mouseLeave: function (e, link) { link.findObject('HIGHLIGHT').stroke = 'transparent'; }, selectionAdorned: false }, new go.Binding('points').makeTwoWay(), // 双向绑定模型中'points'数组属性 $(go.Shape, // 隐藏的连线形状,8个像素粗细,当鼠标移上后显示 {isPanelMain: true, strokeWidth: 8, stroke: 'transparent', name: 'HIGHLIGHT'}), $(go.Shape, // 连线规格(颜色,选中/非选中,粗细) {isPanelMain: true, stroke: 'gray', strokeWidth: 2}, new go.Binding('stroke', 'isSelected', function (sel) { return sel ? 'dodgerblue' : 'gray'; }).ofObject()), $(go.Shape, // 箭头规格 {toArrow: 'standard', strokeWidth: 0, fill: 'gray'}), $(go.Panel, 'Auto', // 连线标签,默认不显示 {visible: false, name: 'LABEL', segmentIndex: 2, segmentFraction: 0.5}, new go.Binding('visible', 'visible').makeTwoWay(),// 双向绑定模型中'visible'属性 $(go.Shape, 'RoundedRectangle', // 连线中显示的标签形状 {fill: '#F8F8F8', strokeWidth: 0}), $(go.TextBlock, 'Yes', // // 连线中显示的默认标签文字 { textAlign: 'center', font: '10pt helvetica, arial, sans-serif', stroke: '#333333', editable: true }, new go.Binding('text').makeTwoWay()) // 双向绑定模型中'text'属性 ) ); // 临时的连线(还在画图中),包括重连的连线,都保持直角 this.myDiagram.toolManager.linkingTool.temporaryLink.routing = go.Link.Orthogonal; this.myDiagram.toolManager.relinkingTool.temporaryLink.routing = go.Link.Orthogonal; // 读取json数据 this.load() // 在图形页面的左边初始化图例Palette面板 this.myPalette = $(go.Palette, this.$refs.myPaletteDiv, // 必须同HTML中Div元素id一致 { // Instead of the default animation, use a custom fade-down 'animationManager.initialAnimationStyle': go.AnimationManager.None, 'InitialAnimationStarting': this.animateFadeDown, // 使用此函数设置动画 nodeTemplateMap: this.myDiagram.nodeTemplateMap, // 同myDiagram公用一种node节点模板 model: new go.GraphLinksModel([ // 初始化Palette面板里的内容 {category: 'Start', text: '开始'}, {text: '步骤'}, {category: 'Conditional', text: '选择'}, {category: 'End', text: '结束'}, {category: 'Comment', text: '标识'} ]) }) }, methods : { showLinkLabel (e) { var label = e.subject.findObject('LABEL') if (label !== null) label.visible = (e.subject.fromNode.data.category === 'Conditional') }, // 设置节点位置风格,并与模型'loc'属性绑定,该方法会在初始化各种节点模板时使用 nodeStyle () { return [ // 将节点位置信息 Node.location 同节点模型数据中 'loc' 属性绑定: // 节点位置信息从 节点模型 'loc' 属性获取, 并由静态方法 Point.parse 解析. // 如果节点位置改变了, 会自动更新节点模型中'loc'属性, 并由 Point.stringify 方法转化为字符串 new go.Binding('location', 'loc', go.Point.parse).makeTwoWay(go.Point.stringify), { // 节点位置 Node.location 定位在节点的中心 locationSpot: go.Spot.Center } ] }, // 创建'port'方法,'port'是一个透明的长方形细长图块,在每个节点的四个边界上,如果鼠标移到节点某个边界上,它会高亮 // 'name': 'port' ID,即GraphObject.portId, // 'align': 决定'port' 属于节点4条边的哪条 // 'spot': 控制连线连入/连出的位置,如go.Spot.Top指, go.Spot.TopSide // 'output' / 'input': 布尔型,指定是否允许连线从此'port'连入或连出 makePort (name, align, spot, output, input) { // 表示如果是上,下,边界则是水平的'port' var horizontal = align.equals(go.Spot.Top) || align.equals(go.Spot.Bottom); return $(go.Shape, { fill: 'transparent', // 默认透明不现实 strokeWidth: 0, // 无边框 horizontal ? NaN : 8, // 垂直'port'则8像素宽 height: !horizontal ? NaN : 8, // 水平'port'则8像素 alignment: align, // 同其节点对齐 stretch: (horizontal ? go.GraphObject.Horizontal : go.GraphObject.Vertical),//自动同其节点一同伸缩 portId: name, // 声明ID fromSpot: spot, // 声明连线头连出此'port'的位置 fromLinkable: output, // 布尔型,是否允许连线从此'port'连出 toSpot: spot, // 声明连线尾连入此'port'的位置 toLinkable: input, // 布尔型,是否允许连线从此'port'连出 cursor: 'pointer', // 鼠标由指针改为手指,表示此处可点击生成连线 mouseEnter: function (e, port) { //鼠标移到'port'位置后,高亮 if (!e.diagram.isReadOnly) port.fill = 'rgba(255,0,255,0.5)'; }, mouseLeave: function (e, port) {// 鼠标移出'port'位置后,透明 port.fill = 'transparent'; } }) }, // 定义图形上的文字风格 textStyle() { return { font: 'bold 11pt Lato, Helvetica, Arial, sans-serif', stroke: '#F8F8F8' } }, load () { this.myDiagram.model = go.Model.fromJson(this.$refs.mySavedModel.value) // console.log(this.$refs.mySavedModel.value) }, animateFadeDown(e) { var diagram = e.diagram; var animation = new go.Animation(); animation.isViewportUnconstrained = true; // So Diagram positioning rules let the animation start off-screen animation.easing = go.Animation.EaseOutExpo; animation.duration = 900; // Fade 'down', in other words, fade in from above animation.add(diagram, 'position', diagram.position.copy().offset(0, 200), diagram.position); animation.add(diagram, 'opacity', 0, 1); animation.start(); }, // 初始化模型范例 save () { this.$refs.mySavedModel.value = this.myDiagram.model.toJson() this.myDiagram.isModified = false }, // 在新窗口中将图形转化为SVG,并分页打印 printDiagram() { var svgWindow = window.open(); if (!svgWindow) return; // failure to open a new Window var printSize = new go.Size(700, 960); var bnds = this.myDiagram.documentBounds; var x = bnds.x; var y = bnds.y; while (y < bnds.bottom) { while (x < bnds.right) { var svg = this.myDiagram.makeSVG({scale: 1.0, position: new go.Point(x, y), size: printSize}); svgWindow.document.body.appendChild(svg); x += printSize.width; } x = bnds.x; y += printSize.height; } setTimeout(function () { svgWindow.print(); }, 1); } } } </script> <style scoped> </style>
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