Gauge Chart Example

An example of a Google Gauge Chart.

by Roberto Remondini

HTML

<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
<div style="width:400px;text-align:center">
  <div id="chart_div" style="width: 400px; height: 400px;">         
  </div>
  <h1>MemoryAfter</h1>
</div>

JavaScript

google.charts.load('current', {'packages':['gauge']});
      google.charts.setOnLoadCallback(drawChart);
      function drawChart() {

        var data = google.visualization.arrayToDataTable([
          ['Label', 'Value'],
          ['MemoryBefore', 95]
         
        ]);

        var options = {
          width: 400, height: 600,
          redFrom: 90, redTo: 100,
          yellowFrom:75, yellowTo: 90,
          minorTicks: 5          
        };

        var chart = new google.visualization.Gauge(document.getElementById('chart_div'));
        chart.draw(data, options);       
        
        $('#chart_div').find('table').append("<h1>ciao</h1>");
        
      }