FusionCharts - Real Time Cylinder Gauge

Created using FusionCharts Suite XT - www.fusioncharts.com

by FusionCharts

HTML

<script src="https://cdn.fusioncharts.com/fusioncharts/latest/fusioncharts.js"></script>
<script src="https://cdn.fusioncharts.com/fusioncharts/latest/themes/fusioncharts.theme.fusion.js"></script>
<div id="chart-container">FusionCharts will render here</div>

JavaScript

FusionCharts.ready(function() {
  var fuelVolume = 110,
    fuelWidget = new FusionCharts({
      type: 'cylinder',
      renderAt: 'chart-container',
      id: 'cs-cylinder-gauge-3',
      width: '250',
      height: '350',
      dataFormat: 'json',
      dataSource: {
        "chart": {
          "theme": "fusion",
          "caption": "Diesel Level in Generator",
          "subcaption": "Bakersfield Central",
          "lowerLimit": "0",
          "upperLimit": "120",
          "dataStreamUrl": "../../../resources/php/gauge-and-widgets-guide-cylinder-gauge-real-time-gauges-php-2.php",
          "lowerLimitDisplay": "Empty",
          "upperLimitDisplay": "Full",
          "numberSuffix": " ltrs",
          "showValue": "1",
          "chartBottomMargin": "45",
          "refreshInterval": "2",
        },
        "value": "110"

      },
      events: {
        "beforeRender": function(evt, args) {
          // creating div for controllers
          var controllers = document.createElement('div'),
            isStopped = false,
            gaugeRef = evt.sender;
          controllers.setAttribute('id', 'controllers');

          // Create checkbox inside div
          controllers.innerHTML = '<input type="button" value="Stop Update" id="toggleBtn" style="margin-left:5px;margin-top:5px;font-size:13px;padding:2px;" />';
          args.container.parentNode.insertBefore(controllers, args.container.nextSibling);

          // setting css styles for controllers div
          controllers.style.cssText = "text-align: center;";
          var btn = document.getElementById('toggleBtn'),
            startStopUpdate = function() {
              if (!isStopped) {
                isStopped = true
                btn.value = "Restart Update";
                gaugeRef.stopUpdate();
              } else {
                isStopped = false;
                btn.value = "Stop Update";
                gaugeRef.restartUpdate();
              }
            }

         ...