FusionCharts - Numeric Legend Based Heatmap Chart

Created using FusionCharts Suite XT - www.fusioncharts.com

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 numeric based Heatmap chart showing score for various smartphones, by features.
-->
<div id="chart-container">FusionCharts will render here</div>

JavaScript

var dataSource = {
  "chart": {
    "theme": "fusion",
    "caption": "Top Smartphone Ratings",
    "subCaption": "By Features",
    "xAxisName": "Features",
    "yAxisName": "Model",
    "showPlotBorder": "1"
  },

  "dataset": [{
    "data": [
    {
        "rowid": "Samsung Galaxy S5",
        "columnid": "Processor",
        "value": "8.7",
        "tlLabel": "Quad Core 2.5 GHz",
        "trLabel": "OS : Android 4.4 Kitkat"
      },
      {
        "rowid": "Samsung Galaxy S5",
        "columnid": "Screen Size",
        "value": "8.5",
        "tlLabel": "5.1 inch",
        "trLabel": "AMOLED Screen Size"
      },
      {
        "rowid": "Samsung Galaxy S5",
        "columnid": "Price",
        "value": "9.3",
        "tlLabel": "$600"
      },
      {
        "rowid": "Samsung Galaxy S5",
        "columnid": "Battery Backup",
        "value": "9.7",
        "tlLabel": "29 Hrs",
        "trLabel": "Battery : 2800 MAH"
      },
      {
        "rowid": "Samsung Galaxy S5",
        "columnid": "Camera",
        "value": "8",
        "tlLabel": "16 MP",
        "trLabel": "Front Camera : 2.1 MP"
      },
      {
        "rowid": "HTC One (M8)",
        "columnid": "Processor",
        "value": "9.2",
        "tlLabel": "Quad Core 2.3 GHz",
        "trLabel": "OS : Android 4.4 Kitkat"
      },
      {
        "rowid": "HTC One (M8)",
        "columnid": "Screen Size",
        "value": "8.3",
        "tlLabel": "5 inch",
        "trLabel": "LCD Screen Size"
      },
      {
        "rowid": "HTC One (M8)",
        "columnid": "Price",
        "value": "7.3",
        "tlLabel": "$600"
      },
      {
        "rowid": "HTC One (M8)",
        "columnid": "Battery Backup",
        "value": "8.8",
        "tlLabel": "20 Hrs",
        "trLabel": "Battery : 2600 MAH"
      },
      {
        "rowid": "HTC One (M8)",
        "columnid": "Camera",
        "value": "8.7",
        "tlLabel": "4 MP",
        "trLabel": "Front Camera : 5 MP"
      },
      {
        "rowid":...