You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
182 lines
5.4 KiB
182 lines
5.4 KiB
<!doctype html>
|
|
<html>
|
|
<head>
|
|
<title>Graph | Navigation</title>
|
|
|
|
<style type="text/css">
|
|
body {
|
|
font: 10pt sans;
|
|
}
|
|
#mygraph {
|
|
width: 600px;
|
|
height: 600px;
|
|
border: 1px solid lightgray;
|
|
}
|
|
table.legend_table {
|
|
font-size: 11px;
|
|
border-width:1px;
|
|
border-color:#d3d3d3;
|
|
border-style:solid;
|
|
}
|
|
table.legend_table,td {
|
|
border-width:1px;
|
|
border-color:#d3d3d3;
|
|
border-style:solid;
|
|
padding: 2px;
|
|
}
|
|
div.table_content {
|
|
width:80px;
|
|
text-align:center;
|
|
}
|
|
div.table_description {
|
|
width:100px;
|
|
}
|
|
</style>
|
|
|
|
<script type="text/javascript" src="../../dist/vis.js"></script>
|
|
<link type="text/css" rel="stylesheet" href="../../dist/vis.css">
|
|
|
|
<script type="text/javascript">
|
|
var nodes = null;
|
|
var edges = null;
|
|
var graph = null;
|
|
|
|
function draw() {
|
|
nodes = [];
|
|
edges = [];
|
|
var connectionCount = [];
|
|
|
|
// randomly create some nodes and edges
|
|
var nodeCount = document.getElementById('nodeCount').value;
|
|
for (var i = 0; i < nodeCount; i++) {
|
|
nodes.push({
|
|
id: i,
|
|
label: String(i)
|
|
});
|
|
|
|
connectionCount[i] = 0;
|
|
|
|
// create edges in a scale-free-graph way
|
|
if (i == 1) {
|
|
var from = i;
|
|
var to = 0;
|
|
edges.push({
|
|
from: from,
|
|
to: to
|
|
});
|
|
connectionCount[from]++;
|
|
connectionCount[to]++;
|
|
}
|
|
else if (i > 1) {
|
|
var conn = edges.length * 2;
|
|
var rand = Math.floor(Math.random() * conn);
|
|
var cum = 0;
|
|
var j = 0;
|
|
while (j < connectionCount.length && cum < rand) {
|
|
cum += connectionCount[j];
|
|
j++;
|
|
}
|
|
|
|
var from = i;
|
|
var to = j;
|
|
edges.push({
|
|
from: from,
|
|
to: to
|
|
});
|
|
connectionCount[from]++;
|
|
connectionCount[to]++;
|
|
}
|
|
}
|
|
|
|
// create a graph
|
|
var container = document.getElementById('mygraph');
|
|
var data = {
|
|
nodes: nodes,
|
|
edges: edges
|
|
};
|
|
/*
|
|
var options = {
|
|
nodes: {
|
|
shape: 'circle'
|
|
},
|
|
edges: {
|
|
length: 50
|
|
},
|
|
stabilize: false
|
|
};
|
|
*/
|
|
var options = {
|
|
edges: {
|
|
length: 50
|
|
},
|
|
stabilize: false,
|
|
navigation: true,
|
|
keyboard: true
|
|
};
|
|
graph = new vis.Graph(container, data, options);
|
|
|
|
// add event listeners
|
|
graph.on('select', function(params) {
|
|
document.getElementById('selection').innerHTML = 'Selection: ' + params.nodes;
|
|
});
|
|
}
|
|
</script>
|
|
</head>
|
|
|
|
<body onload="draw();">
|
|
<h2>Navigation controls and keyboad navigation</h2>
|
|
<div style="width: 700px; font-size:14px;">
|
|
This example is the same as example 2, except for the navigation controls that have been activated. The navigation controls are described below. <br /><br />
|
|
<table class="legend_table">
|
|
<tr>
|
|
<td>Icons: </td>
|
|
<td><div class="table_content"><img src="../../dist/img/graph/upArrow.png" /> </div></td>
|
|
<td><div class="table_content"><img src="../../dist/img/graph/downArrow.png" /> </div></td>
|
|
<td><div class="table_content"><img src="../../dist/img/graph/leftArrow.png" /> </div></td>
|
|
<td><div class="table_content"><img src="../../dist/img/graph/rightArrow.png" /> </div></td>
|
|
<td><div class="table_content"><img src="../../dist/img/graph/plus.png" /> </div></td>
|
|
<td><div class="table_content"><img src="../../dist/img/graph/minus.png" /> </div></td>
|
|
<td><div class="table_content"><img src="../../dist/img/graph/zoomExtends.png" /> </div></td>
|
|
</tr>
|
|
<tr>
|
|
<td><div class="table_description">Keyboard shortcuts:</div></td>
|
|
<td><div class="table_content">Up arrow</div></td>
|
|
<td><div class="table_content">Down arrow</div></td>
|
|
<td><div class="table_content">Left arrow</div></td>
|
|
<td><div class="table_content">Right arrow</div></td>
|
|
<td><div class="table_content">=<br />[<br />Page up</div></td>
|
|
<td><div class="table_content">-<br />]<br />Page down</div></td>
|
|
<td><div class="table_content">None</div></td>
|
|
</tr>
|
|
<tr>
|
|
<td><div class="table_description">Description:</div></td>
|
|
<td><div class="table_content">Move up</div></td>
|
|
<td><div class="table_content">Move down</div></td>
|
|
<td><div class="table_content">Move left</div></td>
|
|
<td><div class="table_content">Move right</div></td>
|
|
<td><div class="table_content">Zoom in</div></td>
|
|
<td><div class="table_content">Zoom out</div></td>
|
|
<td><div class="table_content">Zoom extent</div></td>
|
|
</tr>
|
|
</table>
|
|
<br />
|
|
Apart from clicking the icons, you can also navigate using the keyboard. The buttons are in table above.
|
|
Zoom Extends changes the zoom and position of the camera to encompass all visible nodes. To correctly display the navigation icons, the <b>vis.css</b> file must be included.
|
|
The user is free to alter or overload the CSS classes but without them the navigation icons are not visible.
|
|
|
|
|
|
</div>
|
|
<br />
|
|
|
|
<form onsubmit="draw(); return false;">
|
|
<label for="nodeCount">Number of nodes:</label>
|
|
<input id="nodeCount" type="text" value="25" style="width: 50px;">
|
|
<input type="submit" value="Go">
|
|
</form>
|
|
<br>
|
|
|
|
<div id="mygraph"></div>
|
|
|
|
<p id="selection"></p>
|
|
</body>
|
|
</html>
|