React Charts - Spline Area

Spline area series display smooth lines that connect data points. This demo shows different spline area series types. Use the drop-down editor below the Chart to select the type.

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TS JS

Backend API

import React, { useCallback, useState } from 'react'; import SelectBox, { SelectBoxTypes } from 'devextreme-react/select-box'; import { Chart, Series, ArgumentAxis, CommonSeriesSettings, ICommonSeriesSettingsProps, Margin, Export, Legend, } from 'devextreme-react/chart'; import { dataSource, seriesTypeLabel } from './data.ts'; const types: (ICommonSeriesSettingsProps['type'])[] = ['splinearea', 'stackedsplinearea', 'fullstackedsplinearea']; function App() { const [type, setType] = useState(types[0]); const handleChange = useCallback((e: SelectBoxTypes.ValueChangedEvent) => { setType(e.value); }, [setType]); return ( <div id="chart-demo"> <Chart palette="Harmony Light" title="Corporations with Highest Market Value" dataSource={dataSource}> <CommonSeriesSettings argumentField="company" type={type} /> <Series valueField="y2005" name="2005"></Series> <Series valueField="y2004" name="2004"></Series> <ArgumentAxis valueMarginsEnabled={false} /> <Legend verticalAlignment="bottom" horizontalAlignment="center" /> <Margin bottom={20} /> <Export enabled={true} /> </Chart> <div className="options"> <div className="caption">Options</div> <div className="option"> <span>Series Type </span> <SelectBox dataSource={types} inputAttr={seriesTypeLabel} value={type} onValueChanged={handleChange} /> </div> </div> </div> ); } export default App;

import React, { useCallback, useState } from 'react'; import SelectBox from 'devextreme-react/select-box'; import { Chart, Series, ArgumentAxis, CommonSeriesSettings, Margin, Export, Legend, } from 'devextreme-react/chart'; import { dataSource, seriesTypeLabel } from './data.js'; const types = ['splinearea', 'stackedsplinearea', 'fullstackedsplinearea']; function App() { const [type, setType] = useState(types[0]); const handleChange = useCallback( (e) => { setType(e.value); }, [setType], ); return ( <div id="chart-demo"> <Chart palette="Harmony Light" title="Corporations with Highest Market Value" dataSource={dataSource} > <CommonSeriesSettings argumentField="company" type={type} /> <Series valueField="y2005" name="2005" ></Series> <Series valueField="y2004" name="2004" ></Series> <ArgumentAxis valueMarginsEnabled={false} /> <Legend verticalAlignment="bottom" horizontalAlignment="center" /> <Margin bottom={20} /> <Export enabled={true} /> </Chart> <div className="options"> <div className="caption">Options</div> <div className="option"> <span>Series Type </span> <SelectBox dataSource={types} inputAttr={seriesTypeLabel} value={type} onValueChanged={handleChange} /> </div> </div> </div> ); } export default App;

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

export const dataSource = [{ company: 'ExxonMobil', y2005: 377.28, y2004: 270.25, }, { company: 'GeneralElectric', y2005: 353.49, y2004: 311.43, }, { company: 'Microsoft', y2005: 269.86, y2004: 273.32, }, { company: 'Citigroup', y2005: 252.95, y2004: 280.50, }, { company: 'Royal Dutch Shell plc', y2005: 197.67, y2004: 165.89, }, { company: 'Procted & Gamble', y2005: 184.72, y2004: 130.52, }]; export const seriesTypeLabel = { 'aria-label': 'Series Type' };

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

export const dataSource = [ { company: 'ExxonMobil', y2005: 377.28, y2004: 270.25, }, { company: 'GeneralElectric', y2005: 353.49, y2004: 311.43, }, { company: 'Microsoft', y2005: 269.86, y2004: 273.32, }, { company: 'Citigroup', y2005: 252.95, y2004: 280.5, }, { company: 'Royal Dutch Shell plc', y2005: 197.67, y2004: 165.89, }, { company: 'Procted & Gamble', y2005: 184.72, y2004: 130.52, }, ]; export const seriesTypeLabel = { 'aria-label': 'Series Type' };

<!DOCTYPE html> <html lang="en"> <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=5.0" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/24.1.7/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.tsx"); </script> </head> <body class="dx-viewport"> <div class="demo-container"> <div id="app"></div> </div> </body> </html>

.options { padding: 20px; background-color: rgba(191, 191, 191, 0.15); margin-top: 20px; } .option { margin-top: 10px; } .caption { font-size: 18px; font-weight: 500; } .option > span { margin-right: 10px; } .option > .dx-widget { display: inline-block; vertical-align: middle; }

splinearea
The spline area series draws a line between neighboring data points and fills the area under the line. If the Chart contains multiple area series, they overlap.
stackedsplinearea
The Chart displays areas stacked on top of each other without overlapping. This type of Chart is useful if you need to compare the contribution of each series to the overall value.
fullstackedsplinearea
The Chart stacks the areas. Values are displayed as percentages of the total for each argument, as opposed to absolute values. The topmost series points are always plotted at 100%, and the graph completely fills the Chart's pane.

To create multiple spline area series, use the series array to declare each series and the commonSeriesSettings object to specify the common series type.