gojs
Version:
Interactive diagrams, charts, and graphs, such as trees, flowcharts, orgcharts, UML, BPMN, or business diagrams
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HTML
<html>
<head>
<meta charset="UTF-8">
<title>Sequential Function Chart</title>
<meta name="description" content="A sequential function chart." />
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- Copyright 1998-2020 by Northwoods Software Corporation. -->
<script src="../release/go.js"></script>
<script src="../assets/js/goSamples.js"></script> <!-- this is only for the GoJS Samples framework -->
<script id="code">
function init() {
if (window.goSamples) goSamples(); // init for these samples -- you don't need to call this
var $ = go.GraphObject.make;
myDiagram =
$(go.Diagram, "myDiagramDiv", // must be the ID or reference to an HTML DIV
{
layout: $(go.LayeredDigraphLayout, { direction: 90, layerSpacing: 10, setsPortSpots: false }),
"undoManager.isEnabled": true // enable undo & redo
});
// when the document is modified, add a "*" to the title and enable the "Save" button
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);
}
});
// define the step Node template
myDiagram.nodeTemplateMap.add("step",
$(go.Node, "Spot",
{ locationSpot: go.Spot.Center },
new go.Binding("location", "loc", go.Point.parse).makeTwoWay(go.Point.stringify),
$(go.Shape, "Rectangle",
{
fill: "whitesmoke",
stroke: "gray",
strokeWidth: 2,
desiredSize: new go.Size(160, 60),
portId: "", // so that links connect to the Shape, not to the whole Node
fromSpot: go.Spot.BottomSide,
toSpot: go.Spot.TopSide,
alignment: go.Spot.Center
}),
$(go.TextBlock,
{
font: "bold 16px sans-serif",
alignment: go.Spot.Center,
wrap: go.TextBlock.WrapFit,
editable: true
},
new go.Binding("text", "text").makeTwoWay())
));
// define the transition Node template.
myDiagram.nodeTemplateMap.add("transition",
$(go.Node, "Horizontal",
{ locationSpot: go.Spot.Center, locationObjectName: "BAR" },
new go.Binding("location", "loc", go.Point.parse).makeTwoWay(go.Point.stringify),
$(go.Shape, "Rectangle",
{
name: "BAR",
fill: "black",
stroke: null,
desiredSize: new go.Size(60, 8),
portId: "",
fromSpot: go.Spot.BottomSide,
toSpot: go.Spot.TopSide
}),
$(go.TextBlock,
{ editable: true, margin: 3 },
new go.Binding("text", "text").makeTwoWay())
));
// define the parallel Node template.
myDiagram.nodeTemplateMap.add("parallel",
$(go.Node,
{ locationSpot: go.Spot.Center },
new go.Binding("location", "loc", go.Point.parse).makeTwoWay(go.Point.stringify),
$(go.Shape, "Rectangle",
{
fill: "whitesmoke",
stroke: "black",
fromSpot: go.Spot.Bottom,
toSpot: go.Spot.Top,
desiredSize: new go.Size(200, 6),
portId: "",
fromSpot: go.Spot.BottomSide,
toSpot: go.Spot.TopSide
})
));
// define the Link template
myDiagram.linkTemplate =
$(go.Link,
{ routing: go.Link.Orthogonal },
$(go.Shape,
{ stroke: "black", strokeWidth: 2 })
);
// create the graph by reading the JSON data saved in "mySavedModel" textarea element
load();
}
// Show the diagram's model in JSON format
function save() {
document.getElementById("mySavedModel").value = myDiagram.model.toJson();
myDiagram.isModified = false;
}
function load() {
myDiagram.model = go.Model.fromJson(document.getElementById("mySavedModel").value);
}
</script>
</head>
<body onload="init()" >
<div id="sample">
<div id="myDiagramDiv" style="border: solid 1px black; width: 100%; height: 600px"></div>
<p>
<em>Sequential function charts</em> are used for programmable logic controllers (PLCs) and other control systems.
</p>
<p>
You can edit text in-place by clicking on the text of a selected node. The diagram uses 3 categories of node,
each added to the <a>Diagram.nodeTemplateMap</a>:
<ul>
<li><b>step</b></li>
<li><b>transition</b></li>
<li><b>parallel</b></li>
</ul>
</p>
<p>
See also the <a href="grafcet.html">grafcet diagram sample</a>.
</p>
<div>
<div>
<button id="SaveButton" onclick="save()">Save</button>
<button onclick="load()">Load</button>
Diagram Model saved in JSON format:
</div>
<textarea id="mySavedModel" style="width:100%;height:400px">
{ "class": "go.GraphLinksModel",
"nodeDataArray": [
{"key":"S1", "category":"step", "text":"Step 1"},
{"key":"TR1", "category":"transition", "text":"Transition 1"},
{"key":"S2", "category":"step", "text":"Step 2"},
{"key":"TR2", "category":"transition", "text":"Transition 2"},
{"key":"BAR1", "category":"parallel" },
{"key":"S3", "category":"step", "text":"Step 3"},
{"key":"S4", "category":"step", "text":"Step 4"},
{"key":"BAR2", "category":"parallel" },
{"key":"TR3", "category":"transition", "text":"Transition 3"},
{"key":"S5", "category":"step", "text":"Step 5"}
],
"linkDataArray": [
{"from":"S1", "to":"TR1"},
{"from":"TR1", "to":"S2"},
{"from":"S2", "to":"TR2"},
{"from":"TR2", "to":"BAR1"},
{"from":"BAR1", "to":"S3"},
{"from":"BAR1", "to":"S4"},
{"from":"S3", "to":"BAR2"},
{"from":"S4", "to":"BAR2"},
{"from":"BAR2", "to":"TR3"},
{"from":"TR3", "to":"S5"}
]}
</textarea>
</div>
</div>
</body>
</html>