FusionCharts - A simple example of Thermometer gauge with hover effect

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 chart = new FusionCharts({
      type: 'thermometer',
      renderAt: 'chart-container',
      id: 'myThm-3',
      width: '240',
      height: '300',
      dataFormat: 'json',
      dataSource: {
        "chart": {
          "caption": "Temperature Monitor",
          "subcaption": " Central cold store",
          "lowerLimit": "-10",
          "upperLimit": "0",
          "numberSuffix": "°C",
          "decimals": "1",
          "showhovereffect": "1",
          "thmFillColor": "#008ee4",
          "showGaugeBorder": "1",
          "gaugeBorderColor": "#008ee4",
          "gaugeBorderThickness": "2",
          "gaugeBorderAlpha": "30",
          "thmOriginX": "100",
          "dataStreamURL": "https://static.fusioncharts.com/sample/dev2.0/gauge-and-widgets-guide-thermometer-gauge-real-time-gauges-php-2.php",
          "refreshInterval": "5",
          "theme": "fusion"
        },
        "value": "-6"
      },
      "events": {
        'beforeRender': function(evt, args) {
          // creating div for controllers
          var controllers = document.createElement('div');

          // Create button inside div
          controllers.innerHTML = '<input id="btnSU" type="submit" name="Submit" value="Stop Update" >';
          args.container.parentNode.insertBefore(controllers, args.container.nextSibling);
          controllers.setAttribute('id', 'controllers');
        },
        "renderComplete": function(evtObj, argObj) {
          var flag = 0,
            btn = document.getElementById("btnSU"),
            startStopUpdate = function() {
              if (flag === 0) {
                btn.value = "Restart Update";
                evtObj.sender.stopUpdate();
                flag = 1;
              } else {
                btn.value = "Stop Update";
                evtObj.sender.restartUpdate();
                flag = 0;
              }

            };
          btn.addEventListener && btn.addEventListener("click",...