Your search did not match any results.
Circular Gauge

Value Indicators API

Documentation

This demo shows how to use the API of the CircularGauge to change its value and subvalue indicators at runtime. To get and set the values of the indicators, the value and subvalues methods are utilized.

Copy to CodeSandBox
Apply
Reset
import React from 'react'; import { CircularGauge, Scale, Label, Tooltip, Title, Font } from 'devextreme-react/circular-gauge'; import { NumberBox } from 'devextreme-react/number-box'; import { Button } from 'devextreme-react/button'; class App extends React.Component { constructor(props) { super(props); this.state = { mainGeneratorValue: 34, additionalGenerator1Value: 12, additionalGenerator2Value: 23 }; this.updateValues = () => { const gauge = this.gaugeRef.instance; gauge.value(this.state.mainGeneratorValue); gauge.subvalues([this.state.additionalGenerator1Value, this.state.additionalGenerator2Value]); }; this.setMainGeneratorValue = (e) => { this.setState({ mainGeneratorValue: e.value }); }; this.setAdditionalGenerator1Value = (e)=>{ this.setState({ additionalGenerator1Value: e.value }); }; this.setAdditionalGenerator2Value = (e)=>{ this.setState({ additionalGenerator2Value: e.value }); }; this.storeGaugeRef = (ref) => { this.gaugeRef = ref; }; } componentDidMount() { this.updateValues(); } render() { return ( <div id={'gauge-demo'}> <div className={'widget-container'}> <CircularGauge id={'gauge'} ref={this.storeGaugeRef} > <Scale startValue={10} endValue={40} tickInterval={5}> <Label customizeText={this.customizeText} /> </Scale> <Tooltip enabled={true} /> <Title text={'Generators Voltage (kV)'}> <Font size={28} /> </Title> </CircularGauge> </div> <div className={'options'}> <div className={'caption'}>Options</div> <div className={'option'}> <span>Main generator</span>&nbsp; <NumberBox id={'main-generator'} value={this.state.mainGeneratorValue} onValueChanged={this.setMainGeneratorValue} min={10} max={40} width={100} showSpinButtons={true} /> </div> <div className={'option'}> <span>Additional generator 1</span>&nbsp; <NumberBox id={'additional-generator-one'} value={this.state.additionalGenerator1Value} onValueChanged={this.setAdditionalGenerator1Value} min={10} max={40} width={100} showSpinButtons={true} /> </div> <div className={'option'}> <span>Additional generator 2</span>&nbsp; <NumberBox id={'additional-generator-two'} value={this.state.additionalGenerator2Value} onValueChanged={this.setAdditionalGenerator2Value} min={10} max={40} width={100} showSpinButtons={true} /> </div> <div className={'option'}> <Button id={'edit'} width={100} text={'Apply'} onClick={this.updateValues} /> </div> </div> </div> ); } customizeText({ valueText }) { return `${valueText} kV`; } } 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/19.1.6/css/dx.common.css" /> <link rel="dx-theme" data-theme="generic.light" href="https://cdn3.devexpress.com/jslib/19.1.6/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>
.widget-container { margin-right: 320px; } .options { padding: 20px; background-color: rgba(191, 191, 191, 0.15); position: absolute; right: 0; top: 0; bottom: 0; width: 260px; } .caption { font-size: 18px; font-weight: 500; } .option { margin-top: 10px; } .option > span { display: inline-block; width: 155px; } .option > .dx-widget { display: inline-block; vertical-align: middle; } .option > .dx-button { float: right; }
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@1.3.6/dist/quill.js', // 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 } });