Radial Gauges

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:

import 'bootstrap.css'; import '@grapecity/wijmo.styles/wijmo.css'; import './styles.css'; import { InputNumber } from '@grapecity/wijmo.input'; import { RadialGauge } from '@grapecity/wijmo.gauge'; document.readyState === 'complete' ? init() : window.onload = init; function init() { // create the gauge let theGauge = new RadialGauge('#theGauge', { isReadOnly: false, min: 0, max: 100, step: 5, value: 75, valueChanged: (s) => { value.value = s.value; }, showRanges: false, ranges: [ { min: 0, max: 33, color: 'red' }, { min: 33, max: 66, color: 'yellow' }, { min: 66, max: 100, color: 'green' }, ] }); // change properties let value = new InputNumber('#value', { min: theGauge.min, max: theGauge.max, step: theGauge.step, value: theGauge.value, valueChanged: (s) => { theGauge.value = s.value; } }); let startAngle = new InputNumber('#startAngle', { step: 10, min: -360, max: 360, value: theGauge.startAngle, valueChanged: (s) => { theGauge.startAngle = s.value; } }); let sweepAngle = new InputNumber('#sweepAngle', { step: 10, min: -360, max: 360, value: theGauge.sweepAngle, valueChanged: (s) => { theGauge.sweepAngle = s.value; } }); document.getElementById('autoScale').addEventListener('click', (e) => { theGauge.autoScale = e.target.checked; }); }
<!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 class="container-fluid"> <div class="row"> <div class="col-xs-6"> <div class="form-group"> <label for="value">value:</label> <div id="value"></div> </div> <div class="form-group"> <label for="startAngle">startAngle:</label> <div id="startAngle"></div> </div> <div class="form-group"> <label for="sweepAngle">sweepAngle:</label> <div id="sweepAngle"></div> </div> <div class="form-check"> <label for="autoScale" class="form-check-label">autoScale:</label> <input id="autoScale" type="checkbox" checked="checked" class="form-check-input"> </div> </div> <div class="col-xs-6"> <div class="gauge-holder"> <div id="theGauge"></div> </div> </div> </div> </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); } .wj-gauge { width: 100%; height: 100%; } .wj-radialgauge { height: 200px; } .wj-inputnumber { width: 120px; } label { width: 100px; text-align: right; margin-right: 3px; } body { margin-bottom: 24pt; }
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