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1<!DOCTYPE html>
2<html lang="en">
3<head>
4<meta charset="utf-8"/>
5<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no, viewport-fit=cover"/>
6<meta name="description" content="TypeScript: Let the user draw a new link by clicking consecutive points through which the link&#39;s route must pass."/>
7<link rel="stylesheet" href="../assets/css/style.css"/>
8<!-- Copyright 1998-2021 by Northwoods Software Corporation. -->
9<title>Polyline Linking Tool</title>
10</head>
11
12<body>
13 <!-- This top nav is not part of the sample code -->
14 <nav id="navTop" class="w-full z-30 top-0 text-white bg-nwoods-primary">
15 <div class="w-full container max-w-screen-lg mx-auto flex flex-wrap sm:flex-nowrap items-center justify-between mt-0 py-2">
16 <div class="md:pl-4">
17 <a class="text-white hover:text-white no-underline hover:no-underline
18 font-bold text-2xl lg:text-4xl rounded-lg hover:bg-nwoods-secondary " href="../">
19 <h1 class="mb-0 p-1 ">GoJS</h1>
20 </a>
21 </div>
22 <button id="topnavButton" class="rounded-lg sm:hidden focus:outline-none focus:ring" aria-label="Navigation">
23 <svg fill="currentColor" viewBox="0 0 20 20" class="w-6 h-6">
24 <path id="topnavOpen" fill-rule="evenodd" d="M3 5a1 1 0 011-1h12a1 1 0 110 2H4a1 1 0 01-1-1zM3 10a1 1 0 011-1h12a1 1 0 110 2H4a1 1 0 01-1-1zM9 15a1 1 0 011-1h6a1 1 0 110 2h-6a1 1 0 01-1-1z" clip-rule="evenodd"></path>
25 <path id="topnavClosed" class="hidden" fill-rule="evenodd" d="M4.293 4.293a1 1 0 011.414 0L10 8.586l4.293-4.293a1 1 0 111.414 1.414L11.414 10l4.293 4.293a1 1 0 01-1.414 1.414L10 11.414l-4.293 4.293a1 1 0 01-1.414-1.414L8.586 10 4.293 5.707a1 1 0 010-1.414z" clip-rule="evenodd"></path>
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30 <li class="p-1 sm:p-0"><a class="topnav-link" href="../learn/">Learn</a></li>
31 <li class="p-1 sm:p-0"><a class="topnav-link" href="../samples/">Samples</a></li>
32 <li class="p-1 sm:p-0"><a class="topnav-link" href="../intro/">Intro</a></li>
33 <li class="p-1 sm:p-0"><a class="topnav-link" href="../api/">API</a></li>
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38 target="_blank" rel="noopener" onclick="getOutboundLink('https://www.nwoods.com/contact.html', 'contact');">Contact</a></li>
39 <li class="p-1 sm:p-0"><a class="topnav-link" href="https://www.nwoods.com/sales/index.html"
40 target="_blank" rel="noopener" onclick="getOutboundLink('https://www.nwoods.com/sales/index.html', 'buy');">Buy</a></li>
41 </ul>
42 </div>
43 </div>
44 <hr class="border-b border-gray-600 opacity-50 my-0 py-0" />
45 </nav>
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47 <div id="navSide" class="flex flex-col w-full md:w-48 text-gray-700 bg-white flex-shrink-0"></div>
48 <!-- * * * * * * * * * * * * * -->
49 <!-- Start of GoJS sample code -->
50
51
52 <div class="p-4 w-full">
53 <div id="sample">
54 <div id="myDiagramDiv" style="border: solid 1px black; width: 100%; height: 600px"></div>
55 <div id="buttons">
56 <button id="SaveButton">Save</button>
57 <button id="LoadButton">Load</button>
58 </div>
59 <p>
60 This sample demonstrates the PolylineLinkingTool, which replaces the standard LinkingTool. The tool is defined in its own
61 file, as <a href="PolylineLinkingTool.ts">PolylineLinkingTool.ts</a>.
62 </p>
63 <p>
64 The user starts drawing a new link from a node in the normal manner, by dragging from a port, which for feedback purposes
65 has a "pointer" cursor. Normally the user would have to release the mouse near the target port/node. However with the
66 PolylineLinkingTool the user may click at various points to cause the new link to be routed along those points. Clicking
67 on the target port completes the new link. Press <b>Escape</b> to cancel, or <b>Z</b> to remove the last point.
68 </p>
69 <p>
70 Furthermore, because <a>Link.resegmentable</a> is true, the user can easily add or remove segments from the route of
71 a selected link. To insert a segment, the user can start dragging the small diamond resegmenting handle. To remove
72 a segment, the user needs to move a regular reshaping handle to cause the adjacent two segments to be in a straight
73 line.
74 </p>
75 <p>
76 The PolylineLinkingTool also works with orthogonally routed links. To demonstrate this, uncomment the two lines that initialize
77 <a>Link.routing</a> to be <a>Link.Orthogonal</a>.
78 </p>
79 <textarea id="mySavedModel" style="width:100%;height:300px">
80{ "class": "go.GraphLinksModel",
81 "nodeDataArray": [
82 { "key": 1, "text": "Node 1", "fill": "blueviolet", "loc": "100 100" },
83 { "key": 2, "text": "Node 2", "fill": "orange", "loc": "400 100" }
84 ],
85 "linkDataArray": [ ]
86}
87 </textarea>
88 </div>
89
90 <script type="module" id="code">
91 import * as go from "../release/go-module.js";
92 import { PolylineLinkingTool } from './PolylineLinkingTool.js';
93
94 if (window.goSamples) goSamples(); // init for the samples -- you don't need to call this
95 const $ = go.GraphObject.make;
96
97 const myDiagram =
98 $(go.Diagram, 'myDiagramDiv',
99 { "undoManager.isEnabled": true });
100
101 // install custom linking tool, defined in PolylineLinkingTool.js
102 const tool = new PolylineLinkingTool();
103 // tool.temporaryLink.routing = go.Link.Orthogonal; // optional, but need to keep link template in sync, below
104 myDiagram.toolManager.linkingTool = tool;
105
106 myDiagram.nodeTemplate =
107 $(go.Node, 'Spot', { locationSpot: go.Spot.Center }, new go.Binding('location', 'loc', go.Point.parse).makeTwoWay(go.Point.stringify), $(go.Shape, {
108 width: 100, height: 100, fill: 'lightgray',
109 portId: '', cursor: 'pointer',
110 fromLinkable: true,
111 fromLinkableSelfNode: true, fromLinkableDuplicates: true,
112 toLinkable: true,
113 toLinkableSelfNode: true, toLinkableDuplicates: true // optional
114 }, new go.Binding('fill')), $(go.Shape, { width: 70, height: 70, fill: 'transparent', stroke: null }), $(go.TextBlock, new go.Binding('text')));
115 myDiagram.linkTemplate =
116 $(go.Link, { reshapable: true, resegmentable: true },
117 // { routing: go.Link.Orthogonal }, // optional, but need to keep LinkingTool.temporaryLink in sync, above
118 { adjusting: go.Link.Stretch }, // optional
119 new go.Binding('points', 'points').makeTwoWay(), $(go.Shape, { strokeWidth: 1.5 }), $(go.Shape, { toArrow: 'OpenTriangle' }));
120 load(); // load a simple diagram from the textarea
121
122 // save a model to and load a model from Json text, displayed below the Diagram
123 export function save() {
124 document.getElementById('mySavedModel').value = myDiagram.model.toJson();
125 myDiagram.isModified = false;
126 }
127 export function load() {
128 myDiagram.model = go.Model.fromJson(document.getElementById('mySavedModel').value);
129 }
130
131 document.getElementById("SaveButton").onclick = save;
132 document.getElementById("LoadButton").onclick = load;
133
134 window.myDiagram = myDiagram; // Attach to the window for console debugging
135 </script>
136 </div>
137 <!-- * * * * * * * * * * * * * -->
138 <!-- End of GoJS sample code -->
139 </div>
140</body>
141<!-- This script is part of the gojs.net website, and is not needed to run the sample -->
142<script src="../assets/js/goSamples.js"></script>
143</html>