201 lines
7.8 KiB
HTML
201 lines
7.8 KiB
HTML
<!DOCTYPE html>
|
|
<html>
|
|
<head>
|
|
<meta name="viewport" content="width=device-width, initial-scale=1">
|
|
<title>Friend Wheel</title>
|
|
<meta name="description" content="Show the relationships between people using a friend wheel diagram, implemented using circular layout." />
|
|
<!-- Copyright 1998-2017 by Northwoods Software Corporation. -->
|
|
<meta charset="UTF-8">
|
|
<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 WheelLayout() {
|
|
go.CircularLayout.call(this);
|
|
}
|
|
go.Diagram.inherit(WheelLayout, go.CircularLayout);
|
|
|
|
// override makeNetwork to set the diameter of each node and ignore the TextBlock label
|
|
/** @override */
|
|
WheelLayout.prototype.makeNetwork = function(coll) {
|
|
var net = go.CircularLayout.prototype.makeNetwork.call(this, coll);
|
|
net.vertexes.each(function(cv) {
|
|
cv.diameter = 20; // because our desiredSize for nodes is (20, 20)
|
|
});
|
|
return net;
|
|
}
|
|
|
|
// override commitNodes to rotate nodes so the text goes away from the center,
|
|
// and flip text if it would be upside-down
|
|
/** @override */
|
|
WheelLayout.prototype.commitNodes = function() {
|
|
go.CircularLayout.prototype.commitNodes.call(this);
|
|
this.network.vertexes.each(function(v) {
|
|
var node = v.node;
|
|
if (node === null) return;
|
|
// get the angle of the node towards the center, and rotate it accordingly
|
|
var a = v.actualAngle;
|
|
if (a > 90 && a < 270) { // make sure the text isn't upside down
|
|
var textBlock = node.findObject("TEXTBLOCK");
|
|
textBlock.angle = 180;
|
|
}
|
|
node.angle = a;
|
|
});
|
|
};
|
|
// end WheelLayout class
|
|
|
|
|
|
var highlightColor = "red"; // color parameterization
|
|
|
|
function init() {
|
|
if (window.goSamples) goSamples(); // init for these samples -- you don't need to call this
|
|
var $ = go.GraphObject.make; // for conciseness in defining templates
|
|
|
|
myDiagram =
|
|
$(go.Diagram, "myDiagramDiv", // must be the ID or reference to div
|
|
{
|
|
initialAutoScale: go.Diagram.Uniform,
|
|
padding: 10,
|
|
contentAlignment: go.Spot.Center,
|
|
layout:
|
|
$(WheelLayout, // set up a custom CircularLayout
|
|
// set some properties appropriate for this sample
|
|
{
|
|
arrangement: go.CircularLayout.ConstantDistance,
|
|
nodeDiameterFormula: go.CircularLayout.Circular,
|
|
spacing: 10,
|
|
aspectRatio: 0.7,
|
|
sorting: go.CircularLayout.Optimized
|
|
}),
|
|
isReadOnly: true,
|
|
click: function(e) { // background click clears any remaining highlighteds
|
|
e.diagram.startTransaction("clear");
|
|
e.diagram.clearHighlighteds();
|
|
e.diagram.commitTransaction("clear");
|
|
}
|
|
});
|
|
|
|
// define the Node template
|
|
myDiagram.nodeTemplate =
|
|
$(go.Node, "Horizontal",
|
|
{
|
|
selectionAdorned: false,
|
|
locationSpot: go.Spot.Center, // Node.location is the center of the Shape
|
|
locationObjectName: "SHAPE",
|
|
mouseEnter: function(e, node) {
|
|
node.diagram.clearHighlighteds();
|
|
node.linksConnected.each(function(l) { highlightLink(l, true); });
|
|
node.isHighlighted = true;
|
|
var tb = node.findObject("TEXTBLOCK");
|
|
if (tb !== null) tb.stroke = highlightColor;
|
|
},
|
|
mouseLeave: function(e, node) {
|
|
node.diagram.clearHighlighteds();
|
|
var tb = node.findObject("TEXTBLOCK");
|
|
if (tb !== null) tb.stroke = "black";
|
|
}
|
|
},
|
|
new go.Binding("text", "text"), // for sorting the nodes
|
|
$(go.Shape, "Ellipse",
|
|
{
|
|
name: "SHAPE",
|
|
fill: "lightgray", // default value, but also data-bound
|
|
stroke: "transparent", // modified by highlighting
|
|
strokeWidth: 2,
|
|
desiredSize: new go.Size(20, 20),
|
|
portId: ""
|
|
}, // so links will go to the shape, not the whole node
|
|
new go.Binding("fill", "color"),
|
|
new go.Binding("stroke", "isHighlighted",
|
|
function(h) { return h ? highlightColor : "transparent"; })
|
|
.ofObject()),
|
|
$(go.TextBlock,
|
|
{ name: "TEXTBLOCK" }, // for search
|
|
new go.Binding("text", "text"))
|
|
);
|
|
|
|
function highlightLink(link, show) {
|
|
link.isHighlighted = show;
|
|
link.fromNode.isHighlighted = show;
|
|
link.toNode.isHighlighted = show;
|
|
}
|
|
|
|
// define the Link template
|
|
myDiagram.linkTemplate =
|
|
$(go.Link,
|
|
{
|
|
routing: go.Link.Normal,
|
|
curve: go.Link.Bezier,
|
|
selectionAdorned: false,
|
|
mouseEnter: function(e, link) { highlightLink(link, true); },
|
|
mouseLeave: function(e, link) { highlightLink(link, false); }
|
|
},
|
|
$(go.Shape,
|
|
new go.Binding("stroke", "isHighlighted",
|
|
function(h, shape) { return h ? highlightColor : shape.part.data.color; })
|
|
.ofObject(),
|
|
new go.Binding("strokeWidth", "isHighlighted",
|
|
function(h) { return h ? 2 : 1; })
|
|
.ofObject())
|
|
);
|
|
|
|
generateGraph();
|
|
}
|
|
|
|
function generateGraph() {
|
|
var names = [
|
|
"Joshua", "Daniel", "Robert", "Noah", "Anthony",
|
|
"Elizabeth", "Addison", "Alexis", "Ella", "Samantha",
|
|
"Joseph", "Scott", "James", "Ryan", "Benjamin",
|
|
"Walter", "Gabriel", "Christian", "Nathan", "Simon",
|
|
"Isabella", "Emma", "Olivia", "Sophia", "Ava",
|
|
"Emily", "Madison", "Tina", "Elena", "Mia",
|
|
"Jacob", "Ethan", "Michael", "Alexander", "William",
|
|
"Natalie", "Grace", "Lily", "Alyssa", "Ashley",
|
|
"Sarah", "Taylor", "Hannah", "Brianna", "Hailey",
|
|
"Christopher", "Aiden", "Matthew", "David", "Andrew",
|
|
"Kaylee", "Juliana", "Leah", "Anna", "Allison",
|
|
"John", "Samuel", "Tyler", "Dylan", "Jonathan",
|
|
];
|
|
|
|
var nodeDataArray = [];
|
|
for (var i = 0; i < names.length; i++) {
|
|
nodeDataArray.push({ key: i, text: names[i], color: go.Brush.randomColor(128, 240) });
|
|
}
|
|
|
|
var linkDataArray = [];
|
|
var num = nodeDataArray.length;
|
|
for (var i = 0; i < num * 2; i++) {
|
|
var a = Math.floor(Math.random() * num);
|
|
var b = Math.floor(Math.random() * num / 4) + 1;
|
|
linkDataArray.push({ from: a, to: (a + b) % num, color: go.Brush.randomColor(0, 127) });
|
|
}
|
|
|
|
myDiagram.model = new go.GraphLinksModel(nodeDataArray, linkDataArray);
|
|
}
|
|
</script>
|
|
</head>
|
|
<body onload="init()">
|
|
<div id="sample">
|
|
<div id="myDiagramDiv" style="border: solid 1px black; background: white; width: 100%; height: 600px" ></div>
|
|
<p>
|
|
This "friend wheel" demonstrates the use of <a>CircularLayout</a>.
|
|
The layout has been customized to make sure each node is considered to have a fixed diameter,
|
|
ignoring the size of any <a>TextBlock</a>.
|
|
</p>
|
|
<p>
|
|
The custom layout also rotates each <a>Node</a> according to the actual angle at which the node was positioned.
|
|
This information is available on the <a>CircularVertex</a> used by the <a>LayoutNetwork</a> that
|
|
the <a>CircularLayout</a> constructs from the nodes and links of the diagram.
|
|
Furthermore, when laying out the nodes it also flips the angle of the <a>TextBlock</a> so that the
|
|
text is not upside-down.
|
|
</p>
|
|
<p>
|
|
<a>GraphObject.mouseEnter</a> and <a>GraphObject.mouseLeave</a> event handlers on the <a>Node</a> template
|
|
highlight both the Node and all of the Links that connect with the Node.
|
|
The same event handlers on the <a>Link</a>s highlight that Link and both connected Nodes.
|
|
Changes made in these event handlers automatically are not recorded in the <a>UndoManager</a>,
|
|
although this sample does not enable the UndoManager anyway.
|
|
</p>
|
|
</div>
|
|
</body>
|
|
</html> |