javascriptjqueryhtmlgoogle-gauges

How to print the bottom label of google gauge outside the guage?


I am trying to print the bottom label of the Google gauges outside(just below the respective gauges). Also, I want to provide two different suffixes for the two gauges. I have tried giving separate formatters(formatter1, formatter2) for both and separate data(data1 and data2), but it's not even drawing the gauges(no error). In this case, the draw_data_guage will have a fourth argument.

var e = document.getElementById('draw_chart');
e.onclick = draw_data_gauge(80, 68, '%');

function draw_data_gauge(cpu_data, memory_data, suffix) {
  console.log("in guage")
  google.charts.load('current', {
    'packages': ['gauge']
  });
  google.charts.setOnLoadCallback(drawChart);

  function drawChart() {
    var data1 = google.visualization.arrayToDataTable([
      ['Label', 'Value'],
      ['CPU', cpu_data],
      ['Memory', memory_data],
    ]);
    var options = {
      width: 500,
      height: 150,
      redFrom: 90,
      redTo: 100,
      yellowFrom: 75,
      yellowTo: 90,
      minorTicks: 5,
    };
    var formatter1 = new google.visualization.NumberFormat({
      suffix: suffix,
    });
    formatter1.format(data1, 1);
    var chart = new google.visualization.Gauge(document.getElementById('chart_div'));

    chart.draw(data1, options);
  }
}
<script src="https://www.gstatic.com/charts/loader.js"></script>

<input name="Button" type="button" value="Draw" id="draw_chart" />

<div id="chart_div"></div>

I want the gauge's bottom label to be displayed outside and be able to give separate suffixes for both the gauges. Consider this jsfiddle link. I want to display the percentages(bottom label) outside the gauges just below them. My jsfiddle link is here. Thanks in advance.


Solution

  • Your direction to separate the graphs is right. Here is how to do this:

    div {
      display: inline-block;
    }
    <script type='text/javascript' src='https://www.google.com/jsapi'></script>
    <script type="text/javascript">
      google.load('visualization', '1', {
        packages: ['gauge']
      });
      google.setOnLoadCallback(drawChart);
    
      function drawChart() {
    
        var options = {
          width: 400,
          height: 120,
          redFrom: 90,
          redTo: 100,
          yellowFrom: 75,
          yellowTo: 90,
          minorTicks: 5
        };
    
        var source = [{
            data: ['Memory', 80],
            suffix: '%'
          },
          {
            data: ['CPU', 55],
            suffix: '?'
          },
          {
            data: ['Network', 68],
            suffix: '$'
          },
        ];
    
        source.map((item, index) => {
          var data = google.visualization.arrayToDataTable([
            ['Label', 'Value'],
            item.data
          ]);
    
          var formatter = new google.visualization.NumberFormat({
            suffix: item.suffix,
            fractionDigits: 0
          });
          formatter.format(data, 1);
    
          document.body.innerHTML += '<div id="chart_div_' + index + '"></div>';
          var chart = new google.visualization.Gauge(document.getElementById('chart_div_' + index));
          chart.draw(data, options);
        });
    
    
        // dynamic update, randomly assign new values and redraw
        //setInterval(function() {
        //  data.setValue(0, 1, 40 + Math.round(60 * Math.random()));
        //  formatter.format(data, 1);
        //  chart.draw(data, options);
        //}, 1000);
        //
        //setInterval(function() {
        //  data.setValue(1, 1, 40 + Math.round(60 * Math.random()));
        //  chart.draw(data, options);
        //}, 1000);
        //
        //setInterval(function() {
        //  data.setValue(2, 1, 40 + Math.round(60 * Math.random()));
        //  chart.draw(data, options);
        //}, 1000);
      }
    </script>

    About the text position, I think that it's impossible. You can add a div below each chart with the text.