Gantt Chart Example

An example of a Google Gantt Chart.

by Max Shu

HTML

<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
     <div id="chart_div"></div>

JavaScript

google.charts.load('current', {'packages':['gantt'], 'language': 'ru'});
google.charts.setOnLoadCallback(drawChart);

    function daysToMilliseconds(days) {
      return days * 24 * 60 * 60 * 1000;
    }

    function drawChart() {

      var data = new google.visualization.DataTable();
      data.addColumn('string', 'Task ID');
      data.addColumn('string', 'Task Name');
      data.addColumn('date', 'Start Date');
      data.addColumn('date', 'End Date');
      data.addColumn('number', 'Duration');
      data.addColumn('number', 'Percent Complete');
      data.addColumn('string', 'Dependencies');
      data.addColumn({type: 'string', role: 'tooltip'});

      data.addRows([
        ['Research', 'Find sources',
         new Date(2015, 0, 1), new Date(2015, 0, 5), null,  100,  null, 'test tooltip'],
        ['Write', 'Write paper',
         null, new Date(2015, 0, 9), daysToMilliseconds(3), 25, 'Research,Outline', 'test tooltip'],
        ['Cite', 'Create bibliography',
         null, new Date(2015, 0, 7), daysToMilliseconds(1), 20, 'Research', 'test tooltip'],
        ['Complete', 'Hand in paper',
         null, new Date(2015, 0, 10), daysToMilliseconds(1), 0, 'Cite,Write', 'test tooltip'],
        ['Outline', 'Outline paper',
         null, new Date(2015, 0, 6), daysToMilliseconds(1), 100, 'Research', 'test tooltip']
      ]);

      var options = {
        height: 275,
          tooltip: {isHtml: false},
    legend: 'none'
      };

        var chart = new google.visualization.Gantt(document.getElementById('chart_div'));


      chart.draw(data, options);
    }