Step area Chart in EJ2 TypeScript control

28 Sep 20235 minutes to read

Step Area

To render a step area series, use series type as StepArea and inject StepAreaSeries module using Chart.Inject(StepAreaSeries) method.

import { Chart, StepAreaSeries } from '@syncfusion/ej2-charts';
import { numData } from './datasource.ts';
Chart.Inject(StepAreaSeries);

let chart: Chart = new Chart({
   series:[{
        dataSource: numData,
        xName: 'x', yName: 'y',
        type: 'StepArea'
    }],

}, '#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>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

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

</html>

Series customization

The following properties can be used to customize the step area series.

  • fill – Specifies the color of the area series.
  • opacity – Specifies the opacity of fill.
  • dashArray – Specifies the dashes of series.
import {
  Chart, DateTime, StepAreaSeries,
} from '@syncfusion/ej2-charts';
Chart.Inject(StepAreaSeries, DateTime);

let chart: Chart = new Chart(
  {
    series: [
      {
        type: 'StepArea',
        dataSource: [
          { x: 2000, y: 416 }, { x: 2001, y: 490 }, { x: 2002, y: 470 },
          { x: 2003, y: 500 }, { x: 2004, y: 449 }, { x: 2005, y: 470 },
          { x: 2006, y: 437 }, { x: 2007, y: 458 }, { x: 2008, y: 500 },
          { x: 2009, y: 473 }, { x: 2010, y: 520 }, { x: 2011, y: 520 }
        ],
        fill: 'blue', xName: 'x', yName: 'y', border: { width:2, color: 'red'}
      },
    ],
  },
  '#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>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

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

</html>

See Also