177 lines
5.9 KiB
HTML
177 lines
5.9 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<title>Sequential Function Chart</title>
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<meta name="description" content="A sequential function chart." />
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<!-- Copyright 1998-2017 by Northwoods Software Corporation. -->
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<meta charset="UTF-8">
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<script src="../release/go.js"></script>
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<script src="../assets/js/goSamples.js"></script> <!-- this is only for the GoJS Samples framework -->
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<script id="code">
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function init() {
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if (window.goSamples) goSamples(); // init for these samples -- you don't need to call this
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var $ = go.GraphObject.make;
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myDiagram =
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$(go.Diagram, "myDiagramDiv", // must be the ID or reference to an HTML DIV
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{
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// start everything in the middle of the viewport
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initialContentAlignment: go.Spot.Center,
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layout: $(go.LayeredDigraphLayout, { direction: 90, layerSpacing: 10, setsPortSpots: false }),
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"undoManager.isEnabled": true // enable undo & redo
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});
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// when the document is modified, add a "*" to the title and enable the "Save" button
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myDiagram.addDiagramListener("Modified", function(e) {
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var button = document.getElementById("SaveButton");
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if (button) button.disabled = !myDiagram.isModified;
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var idx = document.title.indexOf("*");
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if (myDiagram.isModified) {
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if (idx < 0) document.title += "*";
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} else {
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if (idx >= 0) document.title = document.title.substr(0, idx);
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}
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});
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// define the step Node template
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myDiagram.nodeTemplateMap.add("step",
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$(go.Node, "Spot",
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{ locationSpot: go.Spot.Center },
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new go.Binding("location", "loc", go.Point.parse).makeTwoWay(go.Point.stringify),
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$(go.Shape, "Rectangle",
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{
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fill: "whitesmoke",
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stroke: "gray",
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strokeWidth: 2,
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desiredSize: new go.Size(160, 60),
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portId: "", // so that links connect to the Shape, not to the whole Node
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fromSpot: go.Spot.BottomSide,
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toSpot: go.Spot.TopSide,
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alignment: go.Spot.Center
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}),
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$(go.TextBlock,
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{
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font: "bold 16px sans-serif",
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alignment: go.Spot.Center,
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wrap: go.TextBlock.WrapFit,
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editable: true
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},
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new go.Binding("text", "text").makeTwoWay())
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));
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// define the transition Node template.
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myDiagram.nodeTemplateMap.add("transition",
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$(go.Node, "Horizontal",
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{ locationSpot: go.Spot.Center, locationObjectName: "BAR" },
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new go.Binding("location", "loc", go.Point.parse).makeTwoWay(go.Point.stringify),
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$(go.Shape, "Rectangle",
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{
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name: "BAR",
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fill: "black",
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stroke: null,
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desiredSize: new go.Size(60, 8),
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portId: "",
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fromSpot: go.Spot.BottomSide,
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toSpot: go.Spot.TopSide
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}),
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$(go.TextBlock,
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{ editable: true, margin: 3 },
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new go.Binding("text", "text").makeTwoWay())
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));
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// define the parallel Node template.
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myDiagram.nodeTemplateMap.add("parallel",
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$(go.Node,
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{ locationSpot: go.Spot.Center },
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new go.Binding("location", "loc", go.Point.parse).makeTwoWay(go.Point.stringify),
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$(go.Shape, "Rectangle",
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{
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fill: "whitesmoke",
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stroke: "black",
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fromSpot: go.Spot.BottomCenter,
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toSpot: go.Spot.TopCenter,
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desiredSize: new go.Size(200, 6),
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portId: "",
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fromSpot: go.Spot.BottomSide,
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toSpot: go.Spot.TopSide
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})
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));
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// define the Link template
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myDiagram.linkTemplate =
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$(go.Link,
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{ routing: go.Link.Orthogonal },
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$(go.Shape,
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{ stroke: "black", strokeWidth: 2 })
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);
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// create the graph by reading the JSON data saved in "mySavedModel" textarea element
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load();
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}
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// Show the diagram's model in JSON format
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function save() {
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document.getElementById("mySavedModel").value = myDiagram.model.toJson();
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myDiagram.isModified = false;
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}
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function load() {
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myDiagram.model = go.Model.fromJson(document.getElementById("mySavedModel").value);
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}
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</script>
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</head>
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<body onload="init()" >
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<div id="sample">
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<div id="myDiagramDiv" style="border: solid 1px black; width: 100%; height: 600px"></div>
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<p>
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<em>Sequential function charts</em> are used for programmable logic controllers (PLCs) and other control systems.
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</p>
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<p>
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You can edit text in-place by clicking on the text of a selected node. The diagram uses 3 categories of node,
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each added to the <a>Diagram.nodeTemplateMap</a>:
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<ul>
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<li><b>step</b></li>
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<li><b>transition</b></li>
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<li><b>parallel</b></li>
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</ul>
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</p>
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<p>
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See also the <a href="grafcet.html">grafcet diagram sample</a>.
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</p>
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<div>
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<div>
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<button id="SaveButton" onclick="save()">Save</button>
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<button onclick="load()">Load</button>
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Diagram Model saved in JSON format:
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</div>
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<textarea id="mySavedModel" style="width:100%;height:400px">
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{ "nodeDataArray": [
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{"key":"S1", "category":"step", "text":"Step 1"},
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{"key":"TR1", "category":"transition", "text":"Transition 1"},
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{"key":"S2", "category":"step", "text":"Step 2"},
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{"key":"TR2", "category":"transition", "text":"Transition 2"},
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{"key":"BAR1", "category":"parallel" },
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{"key":"S3", "category":"step", "text":"Step 3"},
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{"key":"S4", "category":"step", "text":"Step 4"},
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{"key":"BAR2", "category":"parallel" },
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{"key":"TR3", "category":"transition", "text":"Transition 3"},
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{"key":"S5", "category":"step", "text":"Step 5"}
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],
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"linkDataArray": [
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{"from":"S1", "to":"TR1"},
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{"from":"TR1", "to":"S2"},
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{"from":"S2", "to":"TR2"},
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{"from":"TR2", "to":"BAR1"},
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{"from":"BAR1", "to":"S3"},
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{"from":"BAR1", "to":"S4"},
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{"from":"S3", "to":"BAR2"},
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{"from":"S4", "to":"BAR2"},
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{"from":"BAR2", "to":"TR3"},
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{"from":"TR3", "to":"S5"}
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]}
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</textarea>
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</div>
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</div>
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</body>
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</html>
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