FusionCharts -Configuring major minor tick marks 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>
<!-- Configuring number of major and minor tick marks in a Horizontal Linear Gauge showing Server CPU Utilization using attributes:

    # majorTMNumber - To add number of ticks needed in major tickmarks
    # minorTMNumber -  To add number of ticks needed in minor tickmarks
    # adjustTM - Automatically adjust the number of major ticks and their values to a best feasible value if set to 1

    Note : Attribute majorTMNumber intensionally set to 9 so as to show how adjustTM automatically adjust it to 10.

    Deviation from theme
    # valueFontSize
    # valueFontBold
-->
<div id="chart-container">FusionCharts will render here</div>
<div id="checkbox-container">
  <input type="checkbox" id="tMarkCB" checked>Adjust Tickmark ?</input>
</div>

JavaScript

FusionCharts.ready(function() {
  var adjustTickCB = document.getElementById('tMarkCB'),
    cpuGauge = new FusionCharts({
      type: 'hlineargauge',
      renderAt: 'chart-container',
      id: 'cpu-linear-gauge',
      width: '400',
      height: '170',
      dataFormat: 'json',
      dataSource: {
        "chart": {
          "theme": "fusion",
          "caption": "Server CPU Utilization",
          "lowerLimit": "0",
          "upperLimit": "100",
          "numberSuffix": "%",
          "chartBottomMargin": "20",
          "valueFontSize": "11",
          "valueFontBold": "0",
          //To set the number of major tickmarks
          "majorTMNumber": "9",
          //To set the number of minor tick marks 
          //in between major tick marks
          "minorTMNumber": "5",
          //To adjust the tickmark and values automatically 
          //to a best feasible value
          "adjustTM": "1",
          "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"
          }]
        }
      }
    })
    .render();
  //Set event listener for check boxes
  adjustTickCB.addEventListener && adjustTickCB.addEventListener("click", adjustTicks);
  //Function to show/hide labels
  function adjustTicks(evt, obj) {
    //Using adjustTM attribute to adjust the 
    //number of major ticks to a best feasible value
    if (adjustTickCB.checked) {
      cpuGauge.setChartAttribute('adjustTM', 1);
    } else {
     ...