FusionCharts - Enabling editing with update event in Linear 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 CSIGauge = new FusionCharts({
      type: 'hlineargauge',
      renderAt: 'chart-container',
      id: 'cpu-linear-gauge-7',
      width: '400',
      height: '170',
      dataFormat: 'json',
      dataSource: {
        "chart": {
          "theme": "fusion",
          "caption": "Server CPU Utilization",
          "lowerLimit": "0",
          "upperLimit": "100",
          "numberSuffix": "%",
          "chartBottomMargin": "40",
          "valueFontSize": "11",
          "valueFontBold": "0",
          "showValue": "0",
          "gaugeFillMix": "{light-10},{light-70},{dark-10}",
          "gaugeFillRatio": "40,20,40"
        },
        "colorRange": {
          "color": [{
            "minValue": "0",
            "maxValue": "35",
            "label": "Low",
          }, {
            "minValue": "35",
            "maxValue": "70",
            "label": "Moderate",
          }, {
            "minValue": "70",
            "maxValue": "100",
            "label": "High",
          }]
        },
        "pointers": {
          "pointer": [{
            "value": "75"
          }]
        },
        "annotations": {
          "origw": "400",
          "origh": "190",
          "autoscale": "1",
          "groups": [{
            "id": "range",
            "items": [{
              "id": "rangeBg",
              "type": "rectangle",
              "x": "$chartCenterX-70",
              "y": "$chartEndY-35",
              "tox": "$chartCenterX +70",
              "toy": "$chartEndY-15",
              "fillcolor": "#ff6650"
            }, {
              "id": "rangeText",
              "type": "Text",
              "fontSize": "11",
              "fillcolor": "#000000",
              "text": "Currently Utilizing 75%",
              "x": "$chartCenterX",
              "y": "$chartEndY-25"
            }]
          }]
        }
      },
      "events": {
        "rendered": function(evtObj, argObj) {
          evtObj.sender.intervalVar...