Gauge Chart Example

An example of a Google Gauge Chart.

HTML

<script type="text/javascript" src="https://www.google.com/jsapi?autoload={'modules':[{'name':'visualization','version':'1.1','packages':['gauge']}]}"></script>
       <div id="chart_div" style="width: 400px; height: 120;"></div>

JavaScript

google.setOnLoadCallback(drawChart);
      function drawChart() {

        var data = google.visualization.arrayToDataTable([
          ['Label', 'Value'],
          ['13:43', 80],
          ['CPU', 55],
          ['Network', 68]
        ]);

        var options = {
          width: 400, height: 120,
            greenColor: '#19E334',
            redColor: '#ED2A37',
            yellowColor: '#41C4DC',
            min: 0, max: 100,
          redFrom: 0, redTo: 40,
          greenFrom: 40, greenTo: 60,
          yellowFrom: 60, yellowTo: 100,
          majorTicks: 10,
          minorTicks: 10
        };

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

        chart.draw(data, options);

        setInterval(function() {
          data.setValue(0, 1, 40 + Math.round(60 * Math.random()));
          chart.draw(data, options);
        }, 13000);
        setInterval(function() {
          data.setValue(1, 1, 40 + Math.round(60 * Math.random()));
          chart.draw(data, options);
        }, 5000);
        setInterval(function() {
          data.setValue(2, 1, 60 + Math.round(20 * Math.random()));
          chart.draw(data, options);
        }, 26000);
      }