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>
<!-- 
    A simple example of Thermometer gauge with hover effect

-->
<div id="chart-container">FusionCharts will render here</div>

JavaScript

FusionCharts.ready(function() {
  var chart = new FusionCharts({
      type: 'thermometer',
      renderAt: 'chart-container',
      id: 'myThm',
      width: '240',
      height: '300',
      dataFormat: 'json',
      dataSource: {
        "chart": {
          "theme": "fusion",
          "caption": "Temperature Monitor",
          "subcaption": " Central cold store",
          "lowerLimit": "-10",
          "upperLimit": "00",
          "numberSuffix": "°C",
          "decimals": "1",
          "thmFillColor": "#008ee4",
          "thmOriginX": "100",

          //Add hover effect
          "showhovereffect": "1",
          "plotFillHoverColor": "ff0000",
          "theme": "fusion"
        },
        "value": "-6"
      },
      "events": {
        "initialized": function(evt, arg) {
          var dataUpdate = setInterval(function() {
            var value,
              prevTemp = FusionCharts.items["myThm"].getData(),
              mainTemp = (Math.random() * 10) * (-1),
              diff = Math.abs(prevTemp - mainTemp);

            diff = diff > 1 ? (Math.random() * 1) : diff;
            if (mainTemp > prevTemp) {
              value = prevTemp + diff;
            } else {
              value = prevTemp - diff;
            }
            FusionCharts.items["myThm"].feedData("&value=" + value);
          }, 3000);
        }
      }
    })
    .render();
});