Center label in EJ2 JavaScript Accumulation chart control

8 May 202311 minutes to read

Using centerLabel it is now possible to place a label at the center of a pie or doughnut chart. To configure the default text rendered on the center label for the pie and doughnut charts, use the text property in the centerLabel.

var piechart = new ej.charts.AccumulationChart({
    series: [
        {
            dataSource: [   { x: 'Chrome', y: 61.3, text: 'Chrome: 61.3%' },
            { x: 'Safari', y: 24.6, text: 'Safari: 24.6%' },
            { x: 'Edge', y: 5.0, text: 'Edge: 5.0%' },
            { x: 'Samsung Internet', y: 2.7, text:  'Samsung Internet: 2.7%' },
            { x: 'Firefox', y: 2.6, text: 'Firefox: 2.6%' },
            { x: 'Others', y: 3.6, text:  'Others: 3.6%' }],
            innerRadius: '65%',
            xName: 'x',
            yName: 'y'
        }
    ],
    centerLabel:{
        text : 'Mobile<br>Browsers<br>Statistics'
    }
}, '#element');
<!DOCTYPE html><html lang="en"><head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Typescript UI Controls">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    
    
<script src="https://cdn.syncfusion.com/ej2/29.1.33/dist/ej2.min.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    
    <div id="container">
        <div id="element"></div>
    </div>
     <script id="Unemployment" type="text/x-template">
      <div id='templateWrap'>
     <table style="width:100%;  border: 1px solid black;">
     <tr><th colspan="2" bgcolor="#00FFFF">Unemployment</th></tr>
     <tr><td bgcolor="#00FFFF">${x}:</td><td bgcolor="#00FFFF">${y}</td></tr>
    </table>
    </div>
  </script>


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

Hover text

The default text in the center label can be changed when the mouse pointer hovers over the pie and doughnut charts slice using the hoverTextFormat property.

var piechart = new ej.charts.AccumulationChart({
    series: [
        {
            dataSource: [   { x: 'Chrome', y: 61.3, text: 'Chrome: 61.3%' },
            { x: 'Safari', y: 24.6, text: 'Safari: 24.6%' },
            { x: 'Edge', y: 5.0, text: 'Edge: 5.0%' },
            { x: 'Samsung Internet', y: 2.7, text:  'Samsung Internet: 2.7%' },
            { x: 'Firefox', y: 2.6, text: 'Firefox: 2.6%' },
            { x: 'Others', y: 3.6, text:  'Others: 3.6%' }],
            innerRadius: '65%',
            xName: 'x',
            yName: 'y'
        }
    ],
    centerLabel:{
        text : 'Mobile<br>Browsers<br>Statistics',
        hoverTextFormat: '${point.x} <br> Browser Share <br> ${point.y}%'
    }
}, '#element');
<!DOCTYPE html><html lang="en"><head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Typescript UI Controls">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    
    
<script src="https://cdn.syncfusion.com/ej2/29.1.33/dist/ej2.min.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    
    <div id="container">
        <div id="element"></div>
    </div>
     <script id="Unemployment" type="text/x-template">
      <div id='templateWrap'>
     <table style="width:100%;  border: 1px solid black;">
     <tr><th colspan="2" bgcolor="#00FFFF">Unemployment</th></tr>
     <tr><td bgcolor="#00FFFF">${x}:</td><td bgcolor="#00FFFF">${y}</td></tr>
    </table>
    </div>
  </script>


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

Customization

Customize the center label text using the textStyle property.

var piechart = new ej.charts.AccumulationChart({
    series: [
        {
            dataSource: [   { x: 'Chrome', y: 61.3, text: 'Chrome: 61.3%' },
            { x: 'Safari', y: 24.6, text: 'Safari: 24.6%' },
            { x: 'Edge', y: 5.0, text: 'Edge: 5.0%' },
            { x: 'Samsung Internet', y: 2.7, text:  'Samsung Internet: 2.7%' },
            { x: 'Firefox', y: 2.6, text: 'Firefox: 2.6%' },
            { x: 'Others', y: 3.6, text:  'Others: 3.6%' }],
            innerRadius: '65%',
            xName: 'x',
            yName: 'y'
        }
    ],
    centerLabel:{
        text : 'Mobile<br>Browsers<br>Statistics',
        textStyle: {
            fontWeight: 600
        }
    }
}, '#element');
<!DOCTYPE html><html lang="en"><head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Typescript UI Controls">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    
    
<script src="https://cdn.syncfusion.com/ej2/29.1.33/dist/ej2.min.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    
    <div id="container">
        <div id="element"></div>
    </div>
     <script id="Unemployment" type="text/x-template">
      <div id='templateWrap'>
     <table style="width:100%;  border: 1px solid black;">
     <tr><th colspan="2" bgcolor="#00FFFF">Unemployment</th></tr>
     <tr><td bgcolor="#00FFFF">${x}:</td><td bgcolor="#00FFFF">${y}</td></tr>
    </table>
    </div>
  </script>


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