Continuous Data

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In this example, the PolarChart UI component visualizes a curve that has the shape of a petalled flower. This curve is commonly-known as «rose» or «rhodonea». It is visualized by the line series type.

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import React from 'react'; import { PolarChart, Series, ArgumentAxis, Export, Legend } from 'devextreme-react/polar-chart'; import { dataSource } from './data.js'; class App extends React.Component { render() { return ( <PolarChart id="chart" dataSource={dataSource} title="Rose in Polar Coordinates" > <Series type="line" /> <ArgumentAxis inverted={true} startAngle={90} tickInterval={30} /> <Export enabled={true} /> <Legend visible={false} /> </PolarChart> ); } } 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/20.2.5/css/dx.common.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.2.5/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>

#chart { height: 440px; }

export const dataSource = [{ arg: 0, val: 0 }, { arg: 30, val: 1.7 }, { arg: 45, val: 0 }, { arg: 60, val: 1.7 }, { arg: 90, val: 0 }, { arg: 120, val: 1.7 }, { arg: 135, val: 0 }, { arg: 150, val: 1.7 }, { arg: 180, val: 0 }, { arg: 210, val: 1.7 }, { arg: 225, val: 0 }, { arg: 240, val: 1.7 }, { arg: 270, val: 0 }, { arg: 300, val: 1.7 }, { arg: 315, val: 0 }, { arg: 330, val: 1.7 }, { arg: 360, val: 0 }];

System.config({ transpiler: 'plugin-babel', meta: { 'devextreme/localization.js': { "esModule": true }, }, paths: { 'npm:': 'https://unpkg.com/' }, defaultExtension: 'js', map: { 'react': 'npm:react@16.14.0/umd/react.development.js', 'react-dom': 'npm:react-dom@16.14.0/umd/react-dom.development.js', 'prop-types': 'npm:prop-types@15.7.2/prop-types.js', 'rrule': 'npm:rrule@2.6.6/dist/es5/rrule.js', 'luxon': 'npm:luxon@1.25.0/build/global/luxon.min.js', 'es6-object-assign': 'npm:es6-object-assign@1.1.0', 'devextreme': 'npm:devextreme@20.2.5', 'devextreme-react': 'npm:devextreme-react@20.2.5', 'jszip': 'npm:jszip@3.5.0/dist/jszip.min.js', 'devextreme-quill': 'npm:devextreme-quill@0.9.8/dist/dx-quill.min.js', 'devexpress-diagram': 'npm:devexpress-diagram@2.0.11/dist/dx-diagram.js', 'devexpress-gantt': 'npm:devexpress-gantt@2.0.18/dist/dx-gantt.js', 'preact': 'npm:preact@10.5.11/dist/preact.js', 'preact/hooks': 'npm:preact@10.5.11/hooks/dist/hooks.js', // SystemJS plugins 'plugin-babel': 'npm:systemjs-plugin-babel@0.0.25/plugin-babel.js', 'systemjs-babel-build': 'npm:systemjs-plugin-babel@0.0.25/systemjs-babel-browser.js' }, packages: { 'devextreme': { defaultExtension: 'js' }, 'devextreme-react': { main: 'index.js' }, 'devextreme/events/utils': { main: 'index' }, 'devextreme/events': { main: 'index' }, 'es6-object-assign': { main: './index.js', defaultExtension: 'js' } }, babelOptions: { sourceMaps: false, stage0: true, react: true } });