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Pie & Doughnut

Pie Chart

To render a pie series, use the series type as Pie and inject the PieSeries module using AccumulationChart.Inject(PieSeries) method. If the PieSeries module is not injected, this module will be loaded by default.

Source
Preview
index.ts
index.html
import { AccumulationChart, PieSeries } from '@syncfusion/ej2-charts';
AccumulationChart.Inject(PieSeries);

let piechart: AccumulationChart = new AccumulationChart({
    series: [
        {
            dataSource: [{ x: 'Jan', y: 3 }, { x: 'Feb', y: 3.5 }, { x: 'Mar', y: 7 }, { x: 'Apr', y: 13.5 },{ x: 'May', y: 19 }, { x: 'Jun', y: 23.5 }, { x: 'Jul', y: 26 }, { x: 'Aug', y: 25 },
            { x: 'Sep', y: 21 }, { x: 'Oct', y: 15 }],
            type:'Pie',
            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://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>

Radius Customization

By default, radius of the pie series will be 80% of the size (minimum of chart width and height). You can customize this using radius property of the series.

Source
Preview
index.ts
index.html
import { AccumulationChart } from '@syncfusion/ej2-charts';
import { data } from './datasource.ts';
let piechart: AccumulationChart = new AccumulationChart({
    series: [
        {
            dataSource: data,
            radius: '100%',
            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://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>

Doughnut Chart

To achieve a doughnut in pie series, customize the innerRadius property of the series. By setting value greater than 0%, a doughnut will appear. The innerRadius property takes value from 0% to 100% of the pie radius.

Source
Preview
index.ts
index.html
import { AccumulationChart } from '@syncfusion/ej2-charts';
import { data } from './datasource.ts';
let piechart: AccumulationChart = new AccumulationChart({
    series: [
        {
            dataSource: data,
            innerRadius: '40%',
            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://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>

Start and End angles

You can customize the start and end angle of the pie series using the startAngle and endAngle properties. The default value of startAngle is 0 degree, and endAngle is 360 degrees. By customizing this, you can achieve a semi pie series.

Source
Preview
index.ts
index.html
import { AccumulationChart, AccumulationDataLabel  } from '@syncfusion/ej2-charts';
import { dataMapping } from './datasource.ts';
AccumulationChart.Inject(AccumulationDataLabel);

let piechart: AccumulationChart = new AccumulationChart({
    series: [
        {
            dataSource: dataMapping,
            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://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>

Color & Text Mapping

The fill color and the text in the data source can be mapped to the chart using pointColorMapping in series and name in datalabel respectively.

Source
Preview
index.ts
index.html
import { AccumulationChart, AccumulationDataLabel  } from '@syncfusion/ej2-charts';
import { dataMapping } from './datasource.ts';
AccumulationChart.Inject(AccumulationDataLabel);

let piechart: AccumulationChart = new AccumulationChart({
    series: [
        {
            dataSource:dataMapping ,
            //Map the fill color from data source
            pointColorMapping: 'fill',
            //Map the fill color from data source
            name: ''
            xName: 'x',
            yName: 'y',
            dataLabel: { visible: true, name:'text' }
        }
    ]
}, '#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://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>

Customization

Individual points can be customized using the pointRender event.

Source
Preview
index.ts
index.html
import { AccumulationChart, AccumulationDataLabel, IAccPointRenderEventArgs } from '@syncfusion/ej2-charts';
import { dataMapping } from './datasource.ts';
AccumulationChart.Inject(AccumulationDataLabel);
let piechart: AccumulationChart = new AccumulationChart({
    series: [
        {
            dataSource: dataMapping,
            xName: 'x',
            yName: 'y',
            border:{color: 'white', width: 1},
        }
    ],
    pointRender: (args: IAccPointRenderEventArgs) => {
        if ((args.point.x as string).indexOf('Apr') > -1) {
            args.fill = '#f4bc42';
        }
        else {
            args.fill = '#597cf9';
        }
    },
}, '#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://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>

See Also