<!DOCTYPE HTML> <html> <head> <title>Timeline | Groups ordering</title> <style> body, html { font-family: arial, sans-serif; font-size: 11pt; } #visualization { box-sizing: border-box; width: 100%; height: 300px; } </style> <script src="../../../dist/vis.js"></script> <link href="../../../dist/vis-timeline-graph2d.min.css" rel="stylesheet" type="text/css" /> <script src="../../googleAnalytics.js"></script> </head> <body> <p> This example demonstrates custom ordering of groups. </p> <div id="visualization"></div> <script> var groups = new vis.DataSet([ {id: 0, content: 'First', value: 1}, {id: 1, content: 'Third', value: 3}, {id: 2, content: 'Second', value: 2} ]); // create a dataset with items // note that months are zero-based in the JavaScript Date object, so month 3 is April var items = new vis.DataSet([ {id: 0, group: 0, content: 'item 0', start: new Date(2014, 3, 17), end: new Date(2014, 3, 21)}, {id: 1, group: 0, content: 'item 1', start: new Date(2014, 3, 19), end: new Date(2014, 3, 20)}, {id: 2, group: 1, content: 'item 2', start: new Date(2014, 3, 16), end: new Date(2014, 3, 24)}, {id: 3, group: 1, content: 'item 3', start: new Date(2014, 3, 23), end: new Date(2014, 3, 24)}, {id: 4, group: 1, content: 'item 4', start: new Date(2014, 3, 22), end: new Date(2014, 3, 26)}, {id: 5, group: 2, content: 'item 5', start: new Date(2014, 3, 24), end: new Date(2014, 3, 27)} ]); // create visualization var container = document.getElementById('visualization'); var options = { // option groupOrder can be a property name or a sort function // the sort function must compare two groups and return a value // > 0 when a > b // < 0 when a < b // 0 when a == b groupOrder: function (a, b) { return a.value - b.value; }, editable: true }; var timeline = new vis.Timeline(container); timeline.setOptions(options); timeline.setGroups(groups); timeline.setItems(items); </script> </body> </html>