<!doctype html>
<html>
<head>
<title>Graph | Selections</title>
<script type="text/javascript" src="../../vis.js"></script>
</head>
<body>
<div id="mygraph"></div>
<div id="info"></div>
<script type="text/javascript">
// create an array with nodes
var nodes = [
{id: 1, text: 'Node 1'},
{id: 2, text: 'Node 2'},
{id: 3, text: 'Node 3'},
{id: 4, text: 'Node 4'},
{id: 5, text: 'Node 5'}
];
// create an array with edges
var edges = [
{from: 1, to: 2},
{from: 1, to: 3},
{from: 2, to: 4},
{from: 2, to: 5}
];
// create a graph
var container = document.getElementById('mygraph');
var data = {
nodes: nodes,
edges: edges
};
var options = {
width: '400px',
height: '400px'
};
graph = new vis.Graph(container, data, options);
// add event listener
function onSelect() {
var selection = graph.getSelection();
var info = 'selection: ';
selection.forEach(function (s) {
info += s.row + ' ';
});
document.getElementById('info').innerHTML += info + '<br>';
}
vis.events.addListener(graph, 'select', onSelect);
// set initial selection (row based, zero-based)
var selection = [
{'row': 2},
{'row': 3},
{'row': 4}
];
graph.setSelection(selection);
</script>
</body>
</html>