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Leaf Item in JavaScript (ES5) TreeMap control

The leaf item defines a visualized data element. Leaf item does not contain child nodes, but contains parent node if it specifies the levels in tree map. Leaf nodes can be customized.

Leaf label

Label is represented by item name or value. Label will be appeared by specifying the [labelPath] property. You can customize the label style using the [labelStyle] property.

Source
Preview
index.js
index.html
var treemap = new ej.treemap.TreeMap({
    dataSource: [
        {State:"United States", GDP:17946, percentage:11.08, Rank:1},
        {State:"China", GDP:10866, percentage: 28.42, Rank:2},
        {State:"Japan", GDP:4123, percentage:-30.78, Rank:3},
        {State:"Germany", GDP:3355, percentage:-5.19, Rank:4},
        {State:"United Kingdom", GDP:2848, percentage:8.28, Rank:5},
        {State:"France", GDP:2421, percentage:-9.69, Rank:6},
        {State:"India", GDP:2073, percentage:13.65, Rank:7},
        {State:"Italy", GDP:1814, percentage:-12.45, Rank:8},
        {State:"Brazil", GDP:1774, percentage:-27.88, Rank:9},
        {State:"Canada", GDP:1550, percentage:-15.02, Rank:10}
    ],
    weightValuePath: 'GDP',
    leafItemSettings: {
        labelPath: 'State',
        labelStyle: {
            color: '#000000'
        },
        border: {
            color: '#000000',
            width: 0.5
        }
    },
}, '#container');
<!DOCTYPE html><html lang="en"><head>
    <title>Essential JS 2 for Treemap </title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Essential JS 2 for treemap UI Control">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    
    
<script src="https://cdn.syncfusion.com/ej2/dist/ej2.min.js" type="text/javascript"></script>
</head>

<body>
    
    <div id="container">
    </div>


<script>
var ele = document.getElementById('container');
if(ele) {
    ele.style.visibility = "visible";
 }   
        </script>
<script src="index.js" type="text/javascript"></script>
</body></html>

Label position and format

You can position the label using the [labelPosition] property and format the text by specifying data values using the [labelFormat] property.

Source
Preview
index.js
index.html
var treemap = new ej.treemap.TreeMap({
    dataSource: [
        {State:"United States", GDP:17946, percentage:11.08, Rank:1},
        {State:"China", GDP:10866, percentage: 28.42, Rank:2},
        {State:"Japan", GDP:4123, percentage:-30.78, Rank:3},
        {State:"Germany", GDP:3355, percentage:-5.19, Rank:4},
        {State:"United Kingdom", GDP:2848, percentage:8.28, Rank:5},
        {State:"France", GDP:2421, percentage:-9.69, Rank:6},
        {State:"India", GDP:2073, percentage:13.65, Rank:7},
        {State:"Italy", GDP:1814, percentage:-12.45, Rank:8},
        {State:"Brazil", GDP:1774, percentage:-27.88, Rank:9},
        {State:"Canada", GDP:1550, percentage:-15.02, Rank:10}
    ],
    weightValuePath: 'GDP',
    leafItemSettings: {
        labelPath: 'State',
        labelPosition:'TopCenter',
        labelFormat: '${State}<br>${GDP} Trillion<br>(${percentage} %)',
    }
}, '#container');
<!DOCTYPE html><html lang="en"><head>
    <title>Essential JS 2 for Treemap </title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Essential JS 2 for treemap UI Control">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    
    
<script src="https://cdn.syncfusion.com/ej2/dist/ej2.min.js" type="text/javascript"></script>
</head>

<body>
    
    <div id="container">
    </div>


<script>
var ele = document.getElementById('container');
if(ele) {
    ele.style.visibility = "visible";
 }   
        </script>
<script src="index.js" type="text/javascript"></script>
</body></html>

Label template and position

You can display both text and image in leaf node using the [template] property, which can be placed anywhere in node using the [templatePosition] property.

Source
Preview
index.js
index.html
var treemap = new ej.treemap.TreeMap({
    dataSource: [
        { Sport: "Swimming", Gold: 16, GameImage: 'Swimming.svg', ItemHeight: "180px", ItemWidth: '180px' },
        { Sport: "Athletics", Gold: 13, GameImage: 'Athletics.svg', ItemHeight: "70px", ItemWidth: '70px' },
        { Sport: "Gymnastics", Gold: 4, GameImage: 'Gymnastics.svg', ItemHeight: "80px", ItemWidth: '80px' },
        { Sport: "Cycling", Gold: 2, GameImage: 'Cycling.svg', ItemHeight: "50px", ItemWidth: '50px' },
        { Sport: "Wrestling", Gold: 2, GameImage: 'Wrestling.svg', ItemHeight: "60px", ItemWidth: '50px' },
        { Sport: "Basketball", Gold: 2, GameImage: 'Basketball.svg', ItemHeight: "50px", ItemWidth: '50px' },
        { Sport: "Boxing", Gold: 1, GameImage: 'Boxing.svg', ItemHeight: "40px", ItemWidth: '30px' },
        { Sport: "Tennis", Gold: 1, GameImage: 'Tennis.svg', ItemHeight: "40px", ItemWidth: '40px' },
        { Sport: "Judo", Gold: 1, GameImage: 'Judo.svg', ItemHeight: "40px", ItemWidth: '40px' },
        { Sport: "Rowing", Gold: 1, GameImage: 'Rowing.svg', ItemHeight: "40px", ItemWidth: '40px' },
        { Sport: "Shooting", Gold: 1, GameImage: 'Shooting.svg', ItemHeight: "40px", ItemWidth: '40px' },
        { Sport: "Triathlon", Gold: 1, GameImage: 'Triathlon.svg', ItemHeight: "40px", ItemWidth: '40px' },
        { Sport: "Water polo", Gold: 1, GameImage: 'Water polo.svg', ItemHeight: "40px", ItemWidth: '40px' }
    ],
    weightValuePath: 'Gold',
    leafItemSettings: {
    labelPath: 'Sport',
        fill: '#993399',
        templatePosition: 'Center',
        labelTemplate: '<div style="pointer-events: none;">{{:Sport}} - {{:Gold}}</div>'
    }
}, '#container');
<!DOCTYPE html><html lang="en"><head>
    <title>Essential JS 2 for Treemap </title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Essential JS 2 for treemap UI Control">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    
    
<script src="https://cdn.syncfusion.com/ej2/dist/ej2.min.js" type="text/javascript"></script>
</head>

<body>
    
    <div id="container">
    </div>


<script>
var ele = document.getElementById('container');
if(ele) {
    ele.style.visibility = "visible";
 }   
        </script>
<script src="index.js" type="text/javascript"></script>
</body></html>

Item gap

The [gap] property is used to separate an item from another item. Each item rectangle is split into equal space with specified gap.

Source
Preview
index.js
index.html
var treemap = new ej.treemap.TreeMap({
    dataSource: [
        {State:"United States", GDP:17946, percentage:11.08, Rank:1},
        {State:"China", GDP:10866, percentage: 28.42, Rank:2},
        {State:"Japan", GDP:4123, percentage:-30.78, Rank:3},
        {State:"Germany", GDP:3355, percentage:-5.19, Rank:4},
        {State:"United Kingdom", GDP:2848, percentage:8.28, Rank:5},
        {State:"France", GDP:2421, percentage:-9.69, Rank:6},
        {State:"India", GDP:2073, percentage:13.65, Rank:7},
        {State:"Italy", GDP:1814, percentage:-12.45, Rank:8},
        {State:"Brazil", GDP:1774, percentage:-27.88, Rank:9},
        {State:"Canada", GDP:1550, percentage:-15.02, Rank:10}
    ],
    weightValuePath: 'GDP',
    leafItemSettings: {
        labelPath: 'State',
        gap:20
    }
}, '#container');
<!DOCTYPE html><html lang="en"><head>
    <title>Essential JS 2 for Treemap </title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Essential JS 2 for treemap UI Control">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    
    
<script src="https://cdn.syncfusion.com/ej2/dist/ej2.min.js" type="text/javascript"></script>
</head>

<body>
    
    <div id="container">
    </div>


<script>
var ele = document.getElementById('container');
if(ele) {
    ele.style.visibility = "visible";
 }   
        </script>
<script src="index.js" type="text/javascript"></script>
</body></html>