153 lines
6.9 KiB
HTML
153 lines
6.9 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>Fault Tree</title>
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<meta name="description" content="A Fault Tree diagram showing gate shapes at each non-root node." />
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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; // for conciseness in defining templates
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myDiagram =
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$(go.Diagram, "myDiagramDiv",
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{
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allowCopy: false,
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allowDelete: false,
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initialContentAlignment: go.Spot.Center,
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"draggingTool.dragsTree": true,
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layout:
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$(go.TreeLayout,
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{ angle: 90, layerSpacing: 30 }),
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"undoManager.isEnabled": true
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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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function nodeFillConverter(figure) {
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switch(figure) {
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case "AndGate":
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// right to left so when it's rotated, it goes from top to bottom
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return $(go.Brush, "Linear", { 0: "#EA8100", 1: "#C66D00", start: go.Spot.Right, end: go.Spot.Left });
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case "OrGate":
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return $(go.Brush, "Linear", { 0: "#0058D3", 1: "#004FB7", start: go.Spot.Right, end: go.Spot.Left });
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case "Circle":
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return $(go.Brush, "Linear", { 0: "#009620", 1: "#007717" });
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case "Triangle":
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return $(go.Brush, "Linear", { 0: "#7A0099", 1: "#63007F" });
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default:
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return "whitesmoke";
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}
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}
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myDiagram.nodeTemplate = // the default node template
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$(go.Node, "Spot",
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{ selectionObjectName: "BODY", locationSpot: go.Spot.Center, locationObjectName: "BODY" },
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// the main "BODY" consists of a Rectangle surrounding some text
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$(go.Panel, "Auto",
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{ name: "BODY", portId: "" },
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$(go.Shape,
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{ fill: $(go.Brush, "Linear", { 0: "#770000", 1: "#600000"}), stroke: null }),
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$(go.TextBlock,
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{ margin: new go.Margin(2, 10, 1, 10), maxSize: new go.Size(100, NaN),
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stroke: "whitesmoke", font: "10pt Segoe UI, sans-serif" },
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new go.Binding("text"))
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), // end "BODY", an Auto Panel
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$("TreeExpanderButton", { alignment: go.Spot.Right, alignmentFocus: go.Spot.Left }),
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$(go.Shape, "LineV",
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new go.Binding("visible", "figure", function(f) { return f !== "None"; }),
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{ strokeWidth: 1.5, height: 20, alignment: new go.Spot(0.5, 1, 0, -1), alignmentFocus: go.Spot.Top }),
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$(go.Shape,
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new go.Binding("visible", "figure", function(f) { return f !== "None"; }),
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{ alignment: new go.Spot(0.5, 1, 0, 5), alignmentFocus: go.Spot.Top, width: 30, height: 30,
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stroke: null },
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new go.Binding("figure"),
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new go.Binding("fill", "figure", nodeFillConverter),
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new go.Binding("angle", "figure", function(f) { return (f === "OrGate" || f === "AndGate") ? -90 : 0; })), // ORs and ANDs should point upwards
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$(go.TextBlock,
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new go.Binding("visible", "figure", function(f) { return f !== "None"; }), // if we don't have a figure, don't display any choice text
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{ alignment: new go.Spot(0.5, 1, 20, 20), alignmentFocus: go.Spot.Left,
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stroke: "black", font: "10pt Segoe UI, sans-serif" },
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new go.Binding("text", "choice"))
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);
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myDiagram.linkTemplate =
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$(go.Link, go.Link.Orthogonal,
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{ layerName: "Background", curviness: 20, corner: 5 },
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$(go.Shape,
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{ strokeWidth: 1.5 })
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);
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load();
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}
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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>Fault trees</em> are used to conduct deductive failure analysis in which an undesired state of a
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system is analyzed using Boolean logic to combine a series of lower-level events.
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</p>
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<p>
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This diagram uses a basic <a>TreeModel</a> and <a>TreeLayout</a> to layout nodes in a tree structure.
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The <a>Diagram.nodeTemplate</a> definition allows for text describing the undesirable states and,
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when necessary, a figure indicating an event/gate.
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</p>
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<p>
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The <b>visible</b> property on some of the node template's <a>Shape</a>s is set based on
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whether a figure is chosen for the node in the <a>Model.nodeDataArray</a>. The nodes also
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display a <b>TreeExpanderButton</b> allowing for expanding/collapsing of subtrees.
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See the <a href="../intro/buttons.html">Intro page on Buttons</a> for more GoJS button information.
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</p>
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<p>
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Related to deductive failure analysis is root cause analysis, or RCA. See the <a href="../extensions/Fishbone.html">fishbone layout</a>
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extension page for a diagram format typically used in root cause analysis.
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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:300px">
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{ "class": "go.TreeModel",
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"nodeDataArray": [
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{"key":1, "text":"No flow to receiver", "figure":"None"},
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{"key":2, "text":"No flow from Component B", "parent":1, "figure":"OrGate", "choice":"G02"},
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{"key":3, "text":"No flow into Component B", "parent":2, "figure":"AndGate", "choice":"G03"},
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{"key":4, "text":"Component B blocks flow", "parent":2, "figure":"Circle", "choice":"B01"},
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{"key":5, "text":"No flow from Component A1", "parent":3, "figure":"OrGate", "choice":"G04"},
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{"key":6, "text":"No flow from Component A2", "parent":3, "figure":"OrGate", "choice":"G05"},
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{"key":7, "text":"No flow from source1", "parent":5, "figure":"Triangle", "choice":"T01"},
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{"key":8, "text":"Component A1 blocks flow", "parent":5, "figure":"Circle", "fill":"green", "choice":"B02"},
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{"key":9, "text":"No flow from source2", "parent":6, "figure":"Triangle", "choice":"T02"},
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{"key":10, "text":"Component A2 blocks flow", "parent":6, "figure":"Circle", "choice":"B03"}
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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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