Spline Range Area in JavaScript Chart control

08 May 2023 / 2 minutes to read

Spline Range Area

The Spline Range Area Chart is used to display continuous data points as a set of splines that vary between high and low values over intervals of time and across different categories.

To render a spline range area series, use series type as SplineRangeArea and inject SplineRangeAreaSeries module using Chart.Inject(SplineRangeAreaSeries) method.

Source

Preview

index.ts

index.html

import { Chart, SplineRangeAreaSeries, Category } from '@syncfusion/ej2-charts';
import { splinedata } from './datasource.ts';
Chart.Inject(SplineRangeAreaSeries, Category);

let chart: Chart = new Chart({
    primaryXAxis: {
        valueType: 'Category',
        edgeLabelPlacement: 'Shift',
        majorGridLines: { width: 0 },
    },
    primaryYAxis: {
            labelFormat: '{value}˚C',
            lineStyle: { width: 0 },
            minimum: 0,
            maximum: 40,
            majorTickLines: { width: 0 }
    },
    series: [
        {
            type: 'SplineRangeArea',
            name: 'England',
            dataSource: splinedata,
            xName: 'x', high: 'high', low: 'low',
            opacity: 0.4,
        },
        {
            type: 'SplineRangeArea',
            name: 'India',
            dataSource: splinedata,
            xName: 'x', high: 'high1', low: 'low1',
            opacity: 0.4,
        }],
}, '#element');

<!DOCTYPE html>
<html lang="en">

<head>
            
    <title>EJ2 Animation</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>

Series customization

The following properties can be used to customize the spline range area series.

fill – Specifies the color of the area series.
opacity – Specifies the opacity of fill.
dashArray – Specifies the dashes of series.