Create gauge chart - Javascript Google Chart

Javascript examples for Google Chart:Gauge Chart

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Description

Create gauge chart

Demo Code

ResultView the demo in separate window 

<html>
   <head> 
      <script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script> 
      <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script> 
      <script type="text/javascript">
      google.charts.load('current', {'packages':['gauge']});
      google.charts.setOnLoadCallback(drawChart);
      function drawChart() {// w w  w .  j a  va2  s. c o m
        var data = google.visualization.arrayToDataTable([
          ['Label', 'Value'],
          ['Memory', 80],
          ['CPU', 55],
          ['Network', 68]
        ]);
        var options = {
          width: 400, height: 120,
          redFrom: 90, redTo: 100,
          yellowFrom:75, yellowTo: 90,
          minorTicks: 5
        };
        var chart = new google.visualization.Gauge(document.getElementById('chart_div'));
        chart.draw(data, options);
        setInterval(function() {
            $.ajax({
                url: "g.php",
                dataType: "JSON",
                data:{},
                success: function(x){
                  data.setValue(0, 1, x["key"]);
                  chart.draw(data, options);
                }
            });
        }, 2000);
      }
    
      </script> 
   </head> 
   <body> 
      <div id="chart_div" style="width: 400px; height: 120px;"></div>  
   </body>
</html>

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