Data label can be added to a chart series by enabling the visible
option in the dataLabel property.
var piechart = new ej.charts.AccumulationChart({
enableSmartLabels: true,
series: [
{
dataSource: [
{ x: 'Jan', y: 3, text: 'Jan: 3' }, { x: 'Feb', y: 3.5, text: 'Feb: 3.5' },
{ x: 'Mar', y: 7, text: 'Mar: 7' }, { x: 'Apr', y: 13.5, text: 'Apr: 13.5' },
{ x: 'May', y: 19, text: 'May: 19' }, { x: 'Jun', y: 23.5, text: 'Jun: 23.5' },
{ x: 'Jul', y: 26, text: 'Jul: 26' }, { x: 'Aug', y: 25, text: 'Aug: 25' },
{ x: 'Sep', y: 21, text: 'Sep: 21' }, { x: 'Oct', y: 15, text: 'Oct: 15' }],
dataLabel: { visible: true, name: 'text', position: 'Outside', template: '<div>${point.x}</div><div>${point.y}</div>' },
xName: 'x',
yName: '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/ej2/21.2.3/dist/ej2.min.js" type="text/javascript"></script>
</head>
<body>
<div id="container">
<div id="element"></div>
</div>
<script>
var ele = document.getElementById('container');
if(ele) {
ele.style.visibility = "visible";
}
</script>
<script src="index.js" type="text/javascript"></script>
</body></html>
Note: To use the data label feature, inject the DataLabel
using the Chart.Inject(DataLabel)
method.
Accumulation chart provides support for placing the data label either inside
or outside
the chart.
var piechart = new ej.charts.AccumulationChart({
enableSmartLabels: true,
series: [
{
dataSource: [
{ x: 'Jan', y: 3, text: 'Jan: 3' }, { x: 'Feb', y: 3.5, text: 'Feb: 3.5' },
{ x: 'Mar', y: 7, text: 'Mar: 7' }, { x: 'Apr', y: 13.5, text: 'Apr: 13.5' },
{ x: 'May', y: 19, text: 'May: 19' }, { x: 'Jun', y: 23.5, text: 'Jun: 23.5' },
{ x: 'Jul', y: 26, text: 'Jul: 26' }, { x: 'Aug', y: 25, text: 'Aug: 25' },
{ x: 'Sep', y: 21, text: 'Sep: 21' }, { x: 'Oct', y: 15, text: 'Oct: 15' }],
dataLabel: { visible: true, name: 'text', position: 'Outside', template: '<div>${point.x}</div><div>${point.y}</div>' },
xName: 'x',
yName: '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/ej2/21.2.3/dist/ej2.min.js" type="text/javascript"></script>
</head>
<body>
<div id="container">
<div id="element"></div>
</div>
<script>
var ele = document.getElementById('container');
if(ele) {
ele.style.visibility = "visible";
}
</script>
<script src="index.js" type="text/javascript"></script>
</body></html>
Data labels will be arranged smartly without overlapping with each other. You can enable or disable this feature using
the enableSmartLabels
property.
var piechart = new ej.cahrts.AccumulationChart({
enableSmartLabels: true,
series: [
{
dataSource: [
{ x: 'Jan', y: 3, text: 'Jan: 3' }, { x: 'Feb', y: 3.5, text: 'Feb: 3.5' },
{ x: 'Mar', y: 7, text: 'Mar: 7' }, { x: 'Apr', y: 13.5, text: 'Apr: 13.5' },
{ x: 'May', y: 19, text: 'May: 19' }, { x: 'Jun', y: 23.5, text: 'Jun: 23.5' },
{ x: 'Jul', y: 26, text: 'Jul: 26' }, { x: 'Aug', y: 25, text: 'Aug: 25' },
{ x: 'Sep', y: 21, text: 'Sep: 21' }, { x: 'Oct', y: 15, text: 'Oct: 15' }],
dataLabel: { visible: true, name: 'text', position: 'Outside' },
xName: 'x',
yName: '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/ej2/21.2.3/dist/ej2.min.js" type="text/javascript"></script>
</head>
<body>
<div id="container">
<div id="element"></div>
</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 content can be formatted by using the template option. Inside the template, you can add the placeholder text
${point.x}
and ${point.y}
to display corresponding data points x & y value. Using
template
property, you can set data label
template in chart.
var piechart = new ej.charts.AccumulationChart({
enableSmartLabels: true,
series: [
{
dataSource: [
{ x: 'Jan', y: 3, text: 'Jan: 3' }, { x: 'Feb', y: 3.5, text: 'Feb: 3.5' },
{ x: 'Mar', y: 7, text: 'Mar: 7' }, { x: 'Apr', y: 13.5, text: 'Apr: 13.5' },
{ x: 'May', y: 19, text: 'May: 19' }, { x: 'Jun', y: 23.5, text: 'Jun: 23.5' },
{ x: 'Jul', y: 26, text: 'Jul: 26' }, { x: 'Aug', y: 25, text: 'Aug: 25' },
{ x: 'Sep', y: 21, text: 'Sep: 21' }, { x: 'Oct', y: 15, text: 'Oct: 15' }],
dataLabel: { visible: true, name: 'text', position: 'Outside', template: '<div>${point.x}</div><div>${point.y}</div>' },
xName: 'x',
yName: '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/ej2/21.2.3/dist/ej2.min.js" type="text/javascript"></script>
</head>
<body>
<div id="container">
<div id="element"></div>
</div>
<script>
var ele = document.getElementById('container');
if(ele) {
ele.style.visibility = "visible";
}
</script>
<script src="index.js" type="text/javascript"></script>
</body></html>
Connector line will be visible when the data label is placed outside
the chart.
The connector line can be customized using the type
, color
, width
, length
and dashArray
properties
var piechart = new ej.cahrts.AccumulationChart({
enableSmartLabels: true,
series: [
{
dataSource: [
{ x: 'Jan', y: 3, text: 'Jan: 3' }, { x: 'Feb', y: 3.5, text: 'Feb: 3.5' },
{ x: 'Mar', y: 7, text: 'Mar: 7' }, { x: 'Apr', y: 13.5, text: 'Apr: 13.5' },
{ x: 'May', y: 19, text: 'May: 19' }, { x: 'Jun', y: 23.5, text: 'Jun: 23.5' },
{ x: 'Jul', y: 26, text: 'Jul: 26' }, { x: 'Aug', y: 25, text: 'Aug: 25' },
{ x: 'Sep', y: 21, text: 'Sep: 21' }, { x: 'Oct', y: 15, text: 'Oct: 15' }],
dataLabel: { visible: true, name: 'text', position: 'Outside' },
xName: 'x',
yName: '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/ej2/21.2.3/dist/ej2.min.js" type="text/javascript"></script>
</head>
<body>
<div id="container">
<div id="element"></div>
</div>
<script>
var ele = document.getElementById('container');
if(ele) {
ele.style.visibility = "visible";
}
</script>
<script src="index.js" type="text/javascript"></script>
</body></html>
Text from the data source can be mapped to data label using name
property.
var piechart = new ej.charts.AccumulationChart({
series: [
{
dataSource: [
{ x: 'Jan', y: 3, text: 'Jan: 3' }, { x: 'Feb', y: 3.5, text: 'Feb: 3.5' },
{ x: 'Mar', y: 7, text: 'Mar: 7' }, { x: 'Apr', y: 13.5, text: 'Apr: 13.5' },
{ x: 'May', y: 19, text: 'May: 19' }, { x: 'Jun', y: 23.5, text: 'Jun: 23.5' },
{ x: 'Jul', y: 26, text: 'Jul: 26' }, { x: 'Aug', y: 25, text: 'Aug: 25' },
{ x: 'Sep', y: 21, text: 'Sep: 21' }, { x: 'Oct', y: 15, text: 'Oct: 15' }],
dataLabel: { visible: true, name: 'text', position: 'Outside' },
startAngle: 270,
endAngle: 90,
xName: 'x',
yName: '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/ej2/21.2.3/dist/ej2.min.js" type="text/javascript"></script>
</head>
<body>
<div id="container">
<div id="element"></div>
</div>
<script>
var ele = document.getElementById('container');
if(ele) {
ele.style.visibility = "visible";
}
</script>
<script src="index.js" type="text/javascript"></script>
</body></html>
Data label for the accumulation chart can be formatted using format
property. You can use the global formatting options, such as ‘n’, ‘p’, and ‘c’.
var piechart = new ej.charts.AccumulationChart({
series: [
{
dataSource: [
{ x: 'Jan', y: 3, text: 'Jan: 3' }, { x: 'Feb', y: 3, text: 'Feb: 3.5' },
{ x: 'Mar', y: 7, text: 'Mar: 7' }, { x: 'Apr', y: 13, text: 'Apr: 13.5' },
{ x: 'May', y: 19, text: 'May: 19' }, { x: 'Jun', y: 23, text: 'Jun: 23.5' },
{ x: 'Jul', y: 26, text: 'Jul: 26' }, { x: 'Aug', y: 25, text: 'Aug: 25' },
{ x: 'Sep', y: 21, text: 'Sep: 21' }, { x: 'Oct', y: 15, text: 'Oct: 15' }],
dataLabel: { visible: true, position: 'Outside' , format: 'n2' },
startAngle: 270,
endAngle: 90,
xName: 'x',
yName: '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/ej2/21.2.3/dist/ej2.min.js" type="text/javascript"></script>
</head>
<body>
<div id="container">
<div id="element"></div>
</div>
<script>
var ele = document.getElementById('container');
if(ele) {
ele.style.visibility = "visible";
}
</script>
<script src="index.js" type="text/javascript"></script>
</body></html>
Value | Format | Resultant Value | Description |
---|---|---|---|
1000 | n1 | 1000.0 | The number is rounded to 1 decimal place. |
1000 | n2 | 1000.00 | The number is rounded to 2 decimal places. |
1000 | n3 | 1000.000 | The number is rounded to 3 decimal place. |
0.01 | p1 | 1.0% | The number is converted to percentage with 1 decimal place. |
0.01 | p2 | 1.00% | The number is converted to percentage with 2 decimal place. |
0.01 | p3 | 1.000% | The number is converted to percentage with 3 decimal place. |
1000 | c1 | $1000.0 | The currency symbol is appended to number and number is rounded to 1 decimal place. |
1000 | c2 | $1000.00 | The currency symbol is appended to number and number is rounded to 2 decimal place. |
Individual text can be customized using the textRender
event.
var piechart = new ej.charts.AccumulationChart({
series: [
{
dataSource: [
{ x: 'Jan', y: 3, text: 'Jan: 3' }, { x: 'Feb', y: 3.5, text: 'Feb: 3.5' },
{ x: 'Mar', y: 7, text: 'Mar: 7' }, { x: 'Apr', y: 13.5, text: 'Apr: 13.5' },
{ x: 'May', y: 19, text: 'May: 19' }, { x: 'Jun', y: 23.5, text: 'Jun: 23.5' },
{ x: 'Jul', y: 26, text: 'Jul: 26' }, { x: 'Aug', y: 25, text: 'Aug: 25' },
{ x: 'Sep', y: 21, text: 'Sep: 21' }, { x: 'Oct', y: 15, text: 'Oct: 15' },
{ x: 'Nov', y: 9, text: 'Nov: 9' }, { x: 'Dec', y: 3.5, text: 'Dec: 3.5' }],
dataLabel: { visible: true, name: 'text', position: 'Outside' },
groupTo: '11',
xName: 'x',
yName: 'y'
}
],
textRender: (args: IAccTextRenderEventArgs) => {
if (args.text.indexOf('Others') > -1) {
args.color = 'red';
args.border.width = 1;
}
},
pointRender: (args: IAccPointRenderEventArgs) => {
if ((args.point.x as string).indexOf('Others') > -1) {
args.fill = '#D3D3D3';
}
},
}, '#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/ej2/21.2.3/dist/ej2.min.js" type="text/javascript"></script>
</head>
<body>
<div id="container">
<div id="element"></div>
</div>
<script>
var ele = document.getElementById('container');
if(ele) {
ele.style.visibility = "visible";
}
</script>
<script src="index.js" type="text/javascript"></script>
</body></html>
When the data label text exceeds the container, the text can be wrapped by using textWrap
property. End user can also wrap the data label text based on maxWidth
property.
var piechart = new ej.charts.AccumulationChart({
enableSmartLabels: true,
series: [
{
dataSource: [
{ x: 'Chrome', y: 100, text: 'Chrome (100M)<br>40%', tooltipMappingName: '40%' },
{ x: 'UC Browser', y: 40, text: 'UC Browser (40M)<br>16%', tooltipMappingName: '16%' },
{ x: 'Opera', y: 30, text: 'Opera (30M)<br>12%', tooltipMappingName: '12%' },
{ x: 'Safari', y: 30, text: 'Safari (30M)<br>12%', tooltipMappingName: '12%' },
{ x: 'Firefox', y: 25, text: 'Firefox (25M)<br>10%', tooltipMappingName: '10%' },
{ x: 'Others', y: 25, text: 'Others (25M)<br>10%', tooltipMappingName: '10%' }
],
xName: 'x',
yName: 'y',
startAngle: 270,
endAngle: 90,
explode: true,radius : '100%',
innerRadius: '40%', tooltipMappingName: 'tooltipMappingName',
dataLabel: {
visible: true, position: 'Inside' ,maxWidth:100,textWrap:'Wrap',
name: 'text', enableRotation:true,
},
}
],
}, '#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/ej2/21.2.3/dist/ej2.min.js" type="text/javascript"></script>
</head>
<body>
<div id="container">
<div id="element"></div>
</div>
<script>
var ele = document.getElementById('container');
if(ele) {
ele.style.visibility = "visible";
}
</script>
<script src="index.js" type="text/javascript"></script>
</body></html>
You can show the percentages in data labels of pie chart using textRender
event and template
option.
You can customize the data label of pie chart using textRender event as follows to show percentage..
var piechart = new ej.charts.AccumulationChart({
enableSmartLabels: true,
series: [
{
dataSource: [
{ x: 'Jan', y: 3, text: 'Jan: 3' }, { x: 'Feb', y: 3.5, text: 'Feb: 3.5' },
{ x: 'Mar', y: 7, text: 'Mar: 7' }, { x: 'Apr', y: 13.5, text: 'Apr: 13.5' },
{ x: 'May', y: 19, text: 'May: 19' }, { x: 'Jun', y: 23.5, text: 'Jun: 23.5' },
{ x: 'Jul', y: 26, text: 'Jul: 26' }, { x: 'Aug', y: 25, text: 'Aug: 25' },
{ x: 'Sep', y: 21, text: 'Sep: 21' }, { x: 'Oct', y: 15, text: 'Oct: 15' }],
dataLabel: { visible: true },
xName: 'x',
yName: 'y'
}
],
textRender: function(args) {
args.text = args.point.percentage + "%";
}
}, '#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/ej2/21.2.3/dist/ej2.min.js" type="text/javascript"></script>
</head>
<body>
<div id="container">
<div id="element"></div>
</div>
<script>
var ele = document.getElementById('container');
if(ele) {
ele.style.visibility = "visible";
}
</script>
<script src="index.js" type="text/javascript"></script>
</body></html>
You can display the percentage values in data label of pie chart using template
option.
var piechart = new ej.charts.AccumulationChart({
enableSmartLabels: true,
series: [
{
dataSource: [
{ x: 'Jan', y: 3, text: 'Jan: 3' }, { x: 'Feb', y: 3.5, text: 'Feb: 3.5' },
{ x: 'Mar', y: 7, text: 'Mar: 7' }, { x: 'Apr', y: 13.5, text: 'Apr: 13.5' },
{ x: 'May', y: 19, text: 'May: 19' }, { x: 'Jun', y: 23.5, text: 'Jun: 23.5' },
{ x: 'Jul', y: 26, text: 'Jul: 26' }, { x: 'Aug', y: 25, text: 'Aug: 25' },
{ x: 'Sep', y: 21, text: 'Sep: 21' }, { x: 'Oct', y: 15, text: 'Oct: 15' }],
dataLabel: { visible: true, template: "<div id='dataLabelTemplate'>${point.percentage}%</div>" },
xName: 'x',
yName: '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/ej2/21.2.3/dist/ej2.min.js" type="text/javascript"></script>
</head>
<body>
<div id="container">
<div id="element"></div>
</div>
<script>
var ele = document.getElementById('container');
if(ele) {
ele.style.visibility = "visible";
}
</script>
<script src="index.js" type="text/javascript"></script>
</body></html>