Radial Gauges (React)

Radial gauges display a metric as a percentage of the length of a circular scale, like a pie or donut chart with a single slice.

By default, the radial scale displays a 180-degree arc. You can change that by adjusting its start and sweep angles. If the autoScale property is set to true, the control will automatically scale the gauge to fill the host element taking onto account the startAngle and sweepAngle properties.

Use the controls below to see the effect of the main RadialGauge properties:

This example uses React.

import './app.css'; import 'bootstrap.css'; import '@grapecity/wijmo.styles/wijmo.css'; import * as React from 'react'; import * as ReactDOM from 'react-dom'; import { RadialGauge, Range } from '@grapecity/wijmo.react.gauge'; import { InputNumber } from '@grapecity/wijmo.react.input'; class App extends React.Component { constructor(props) { super(props); this.state = { step: 5, value: 75, startAngle: 0, sweepAngle: 180, autoScale: true }; } render() { return (<div className="container-fluid"> <div className="row"> <div className="col-xs-6"> <div className="form-group"> <label data-for="value">value:</label> <InputNumber id="value" min={this.state.min} max={this.state.max} step={this.state.step} value={this.state.value} valueChanged={(s) => this.setState({ value: s.value })}/> </div> <div className="form-group"> <label data-for="startAngle">startAngle:</label> <InputNumber id="startAngle" step={10} min={-360} max={360} value={this.state.startAngle} valueChanged={(s) => this.setState({ startAngle: s.value })}/> </div> <div className="form-group"> <label data-for="sweepAngle">sweepAngle:</label> <InputNumber id="sweepAngle" step={10} min={-360} max={360} value={this.state.sweepAngle} valueChanged={(s) => this.setState({ sweepAngle: s.value })}/> </div> <div className="form-check"> <label htmlFor="autoScale" className="form-check-label">autoScale:</label> <input id="autoScale" type="checkbox" className="form-check-input" checked={this.state.autoScale} onChange={e => this.setState({ autoScale: e.target.checked })}/> </div> </div> <div className="col-xs-6"> <div className="gauge-holder"> <RadialGauge isReadOnly={false} min={0} max={100} step={this.state.step} value={this.state.value} showRanges={false} startAngle={this.state.startAngle} sweepAngle={this.state.sweepAngle} autoScale={this.state.autoScale} valueChanged={s => { this.setState({ value: s.value }); }}> <Range min={0} max={33} color="red"/> <Range min={33} max={66} color="yellow"/> <Range min={66} max={100} color="green"/> </RadialGauge> </div> </div> </div> </div>); } } ReactDOM.render(<App />, document.getElementById('app'));
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>Radial Gauges</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- SystemJS --> <script src="node_modules/systemjs/dist/system.src.js"></script> <script src="systemjs.config.js"></script> <script> System.import('./src/app'); </script> </head> <body> <div id="app"></div> </body> </html>
.gauge-holder { width: 80%; padding: 12px; background: rgba(0, 0, 0, .02); box-shadow: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23); } .container-fluid .wj-gauge { width: 100%; height: 100%; } .container-fluid .wj-radialgauge { height: 200px; } .wj-inputnumber { width: 120px; } label { width: 100px; text-align: right; } body { margin-bottom: 24pt; }
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