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Pie Charts

Pie

Documentation

This demo illustrates the PieChart widget that is often used when comparing the percentage values of different point arguments within a series.

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import React from 'react'; import PieChart, { Series, Label, Connector, Size, Export } from 'devextreme-react/pie-chart'; import { areas } from './data.js'; class App extends React.Component { constructor(props) { super(props); this.pointClickHandler = this.pointClickHandler.bind(this); this.legendClickHandler = this.legendClickHandler.bind(this); } render() { return ( <PieChart id={'pie'} dataSource={areas} palette={'Bright'} title={'Area of Countries'} onPointClick={this.pointClickHandler} onLegendClick={this.legendClickHandler} > <Series argumentField={'country'} valueField={'area'} > <Label visible={true}> <Connector visible={true} width={1} /> </Label> </Series> <Size width={500} /> <Export enabled={true} /> </PieChart> ); } pointClickHandler(e) { this.toggleVisibility(e.target); } legendClickHandler(e) { let arg = e.target; let item = e.component.getAllSeries()[0].getPointsByArg(arg)[0]; this.toggleVisibility(item); } toggleVisibility(item) { item.isVisible() ? item.hide() : item.show(); } } 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/19.1.7/css/dx.common.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/19.1.7/css/dx.light.css" /> <link rel="stylesheet" type="text/css" href="styles.css" /> <script src="https://unpkg.com/core-js@2.4.1/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>
#pie { height: 440px; } #pie * { margin: 0 auto; }
export const areas = [{ country: 'Russia', area: 12 }, { country: 'Canada', area: 7 }, { country: 'USA', area: 7 }, { country: 'China', area: 7 }, { country: 'Brazil', area: 6 }, { country: 'Australia', area: 5 }, { country: 'India', area: 2 }, { country: 'Others', area: 55 }];
System.config({ transpiler: 'plugin-babel', paths: { 'npm:': 'https://unpkg.com/' }, defaultExtension: 'js', map: { 'react': 'npm:react@16/umd/react.development.js', 'react-dom': 'npm:react-dom@16/umd/react-dom.development.js', 'prop-types': 'npm:prop-types/prop-types.js', 'devextreme': 'npm:devextreme@19.1', 'devextreme-react': 'npm:devextreme-react@19.1', 'jszip': 'npm:jszip@3.1.3/dist/jszip.min.js', 'quill': 'npm:quill@1.3.7/dist/quill.js', 'devexpress-diagram': 'npm:devexpress-diagram', // SystemJS plugins 'plugin-babel': 'npm:systemjs-plugin-babel@0/plugin-babel.js', 'systemjs-babel-build': 'npm:systemjs-plugin-babel@0/systemjs-babel-browser.js' }, packages: { 'devextreme': { defaultExtension: 'js' }, 'devextreme-react': { main: 'index.js' } }, babelOptions: { sourceMaps: false, stage0: true, react: true } });