Discrete Axis Zooming and Panning

Documentation

Discrete data support is one of many strengths of the Chart component. In this example, you can zoom data in the Chart using another DevExtreme JavaScript UI component, the RangeSelector.

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Backend API

import React from 'react'; import Chart, { ValueAxis, Label, Legend, ArgumentAxis, CommonSeriesSettings, Border, Series, } from 'devextreme-react/chart'; import RangeSelector, { Size, Chart as ChartOptions, Margin, Scale, Behavior, CommonSeriesSettings as CommonSeriesSettingsOptions, Series as RsChartSeries, } from 'devextreme-react/range-selector'; import { series, dataSource } from './data.js'; const seriesList = series.map((item) => <Series valueField={item.valueField} name={item.name} key={item.name} />); const rsChartSeriesList = series.map((item) => <RsChartSeries valueField={item.valueField} name={item.name} key={item.name} />); class App extends React.Component { constructor(props) { super(props); this.state = { visualRange: { startValue: 'Inner Core', endValue: 'Upper Crust' }, }; this.updateVisualRange = this.updateVisualRange.bind(this); } render() { return ( <React.Fragment> <Chart id="zoomedChart" palette="Soft" title="The Chemical Composition of the Earth Layers" dataSource={dataSource} > {seriesList} <ValueAxis> <Label customizeText={formatValueAxisLabel} /> </ValueAxis> <ArgumentAxis visualRange={this.state.visualRange} /> <CommonSeriesSettings type="bar" ignoreEmptyPoints={true} /> <Legend visible={true} verticalAlignment="top" horizontalAlignment="right" orientation="horizontal" > <Border visible={true} /> </Legend> </Chart> <RangeSelector dataSource={dataSource} onValueChanged={this.updateVisualRange } > <Size height={120} /> <Margin left={10} /> <Scale minorTickCount={1} startValue="Inner Core" endValue="Upper Crust" /> <Behavior valueChangeMode="onHandleMove" /> <ChartOptions palette="Soft"> {rsChartSeriesList} <Legend visible={false} /> <CommonSeriesSettingsOptions type="bar" ignoreEmptyPoints ={true} /> </ChartOptions> </RangeSelector> </React.Fragment> ); } updateVisualRange(e) { this.setState({ visualRange: e.value }); } } function formatValueAxisLabel() { return `${this.valueText}%`; } 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>

#zoomedChart { margin-bottom: 20px; }