Step Area

This demo shows a step area series type. The primary difference between area and step area is that in step area series, data points are connected by perpendicular vertical and horizontal lines.

To create multiple area series, use the series array to declare each series and the commonSeriesSettings object to specify the common series type. In that object you can implement specific parameters to configure step area specifically. For example, this demo disables a border for all series.

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Backend API

import React from 'react'; import Chart, { ArgumentAxis, Series, CommonSeriesSettings, Label, Legend, Border, Export, } from 'devextreme-react/chart'; import { dataSource } from './data.js'; class App extends React.Component { render() { return ( <Chart title="Australian Medal Count" dataSource={dataSource} id="chart"> <Series valueField="bronze" name="Bronze Medals" color="#cd7f32" /> <Series valueField="silver" name="Silver Medals" color="#c0c0c0" /> <Series valueField="gold" name="Gold Medals" color="#ffd700" /> <CommonSeriesSettings argumentField="year" type="steparea"> <Border visible={false} /> </CommonSeriesSettings> <ArgumentAxis valueMarginsEnabled={false}> <Label format="decimal" /> </ArgumentAxis> <Export enabled={true} /> <Legend verticalAlignment="bottom" horizontalAlignment="center" /> </Chart> ); } } export default App;

import React from 'react'; import ReactDOM from 'react-dom'; import App from './App.js'; ReactDOM.render( <App />, document.getElementById('app'), );

<!DOCTYPE html> <html> <head> <title>DevExtreme Demo</title> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/23.1.5/css/dx.light.css" /> <link rel="stylesheet" type="text/css" href="styles.css" /> <script src="https://unpkg.com/core-js@2.6.12/client/shim.min.js"></script> <script src="https://unpkg.com/systemjs@0.21.3/dist/system.js"></script> <script type="text/javascript" src="config.js"></script> <script type="text/javascript"> System.import("./index.js"); </script> </head> <body class="dx-viewport"> <div class="demo-container"> <div id="app"></div> </div> </body> </html>

#chart { height: 440px; }

export const dataSource = [{ year: 1896, gold: 2, silver: 0, bronze: 0, }, { year: 1900, gold: 2, silver: 0, bronze: 3, }, { year: 1904, gold: 0, silver: 0, bronze: 0, }, { year: 1908, gold: 1, silver: 2, bronze: 2, }, { year: 1912, gold: 2, silver: 2, bronze: 3, }, { year: 1916, gold: 0, silver: 0, bronze: 0, }, { year: 1920, gold: 0, silver: 2, bronze: 1, }, { year: 1924, gold: 3, silver: 1, bronze: 2, }, { year: 1928, gold: 1, silver: 2, bronze: 1, }, { year: 1932, gold: 3, silver: 1, bronze: 1, }, { year: 1936, gold: 0, silver: 0, bronze: 1, }, { year: 1940, gold: 0, silver: 0, bronze: 0, }, { year: 1944, gold: 0, silver: 0, bronze: 0, }, { year: 1948, gold: 2, silver: 6, bronze: 5, }, { year: 1952, gold: 6, silver: 2, bronze: 3, }, { year: 1956, gold: 13, silver: 8, bronze: 14, }, { year: 1960, gold: 8, silver: 8, bronze: 6, }, { year: 1964, gold: 6, silver: 2, bronze: 10, }, { year: 1968, gold: 5, silver: 7, bronze: 5, }, { year: 1972, gold: 8, silver: 7, bronze: 2, }, { year: 1976, gold: 0, silver: 1, bronze: 4, }, { year: 1980, gold: 2, silver: 2, bronze: 5, }, { year: 1984, gold: 4, silver: 8, bronze: 12, }, { year: 1988, gold: 3, silver: 6, bronze: 5, }, { year: 1992, gold: 7, silver: 9, bronze: 11, }, { year: 1996, gold: 9, silver: 9, bronze: 23, }, { year: 2000, gold: 16, silver: 25, bronze: 17, }, { year: 2004, gold: 17, silver: 16, bronze: 16, }, { year: 2008, gold: 14, silver: 15, bronze: 17, }, { year: 2012, gold: 8, silver: 15, bronze: 12, }, { year: 2016, gold: 8, silver: 11, bronze: 10, }];