<!doctype html> <html> <head> <title>Graph | Selections</title> <script type="text/javascript" src="../../dist/vis.js"></script> <style type="text/css"> #mygraph { width: 400px; height: 400px; border: 1px solid lightgray; } </style> </head> <body> <div id="mygraph"></div> <div id="info"></div> <script type="text/javascript"> // create an array with nodes var nodes = [ {id: 1, label: 'Node 1'}, {id: 2, label: 'Node 2'}, {id: 3, label: 'Node 3'}, {id: 4, label: 'Node 4'}, {id: 5, label: '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 = { nodes: { shape: 'box' } }; graph = new vis.Graph(container, data, options); // add event listener graph.on('select', function(properties) { document.getElementById('info').innerHTML += 'selection: ' + JSON.stringify(properties) + '<br>'; }); // set initial selection (id's of some nodes) graph.setSelection([3, 4, 5]); </script> </body> </html>