Google Gauges

by Renan Ribeiro Brando

HTML

<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
   <script type="text/javascript">
      google.charts.load('current', {'packages':['gauge']});
      google.charts.setOnLoadCallback(drawChart);

      function drawChart() {

        var data = google.visualization.arrayToDataTable([
          ['Label', 'Value'],
          ['Memory', 120],
          ['CPU', 55],
          ['Network', 68]
        ]);

        var options = {
          width: 400, height: 120,
          redFrom: 170, redTo: 200,
          yellowFrom:130, yellowTo: 170,
          minorTicks: 10,
          max: 200,
          min:20
        };

        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);
      }
    </script>

    <div id="chart_div" style="width: 400px; height: 120px;"></div>