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Funnel in JavaScript Accumulation Chart control

20 Apr 2021 / 5 minutes to read

To render a funnel series, use the series type as Funnel and inject, the FunnelSeries module using the AccumulationChart.Inject(FunnelSeries) method.

Source
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index.ts
index.html
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import { AccumulationChart, FunnelSeries} from '@syncfusion/ej2-charts';
AccumulationChart.Inject(FunnelSeries);

let chart: AccumulationChart = new AccumulationChart({
    series: [{
        type: 'Funnel',
        dataSource: [{ x: 'Renewed', y: 18.20, text: 'Renewed 18.20%' }, { x: 'Subscribe', y: 27.3, text: 'Subscribe 27.3%' }, { x: 'Support', y: 55.9, text: 'Support 55.9%' }, { x: 'Downloaded', y: 76.8, text: 'Downloaded 76.8%' },
        { x: 'Visited', y: 100, text: 'Visited 100%' }],
        xName: 'x', yName: 'y',
        }],
}, '#element');
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<!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>

Size

The size of the funnel chart can be customized by using the width and height properties.

Source
Preview
index.ts
index.html
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import { AccumulationChart, FunnelSeries} from '@syncfusion/ej2-charts';
import { funnelData } from './datasource.ts';
AccumulationChart.Inject(FunnelSeries);

let chart: AccumulationChart = new AccumulationChart({
    series: [{
        type: 'Funnel',
        dataSource: funnelData,
        xName: 'x', yName: 'y',
        //Width of the funnel will be 100% of the chart area
        width: '60%',
        //Height of the funnel will be 100% of the chart area
        height: '80%',
        }],
}, '#element');
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<!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>

Neck Size

The funnel’s neck size can be customized by using the neckWidth and neckHeight properties.

Source
Preview
index.ts
index.html
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import { AccumulationChart, FunnelSeries} from '@syncfusion/ej2-charts';
import { funnelData } from './datasource.ts';
AccumulationChart.Inject(FunnelSeries);

let chart: AccumulationChart = new AccumulationChart({
    series: [{
        type: 'Funnel',
        dataSource: funnelData,
        xName: 'x', yName: 'y',

        //Width of the neck will be set as 25% of the chart area
        neckWidth: '25%', neckHeight:'5%',
        }],
}, '#element');
Copied to clipboard
<!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>

Gap Between the Segments

Funnel chart provides options to customize the space between the segments by using the gapRatio property of the series. It ranges from 0 to 1.

Source
Preview
index.ts
index.html
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import { AccumulationChart, FunnelSeries} from '@syncfusion/ej2-charts';
import { funnelData } from './datasource.ts';
AccumulationChart.Inject(FunnelSeries);

let pyramidchart: AccumulationChart = new AccumulationChart({
series: [{
    type: 'Funnel',
    dataSource: funnelData,
    xName: 'x', yName: 'y',
    // Defines the gap to be left between the segments
    gapRatio: 0.08,
    }],
}, '#element');
Copied to clipboard
<!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>

Explode

Points can be exploded on mouse click by setting the explode property to true. You can also explode the point on load using explodeIndex. Explode distance can be set by using explodeOffset property.

Source
Preview
index.ts
index.html
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import { AccumulationChart, FunnelSeries, IAccPointRenderEventArgs } from '@syncfusion/ej2-charts';
import { funnelData } from './datasource.ts';
AccumulationChart.Inject(FunnelSeries);
let funnelChart: AccumulationChart = new AccumulationChart({
series: [{
    type: 'Funnel',
    dataSource: funnelData,
    xName: 'x', yName: 'y',

    explode: true,

    //Specifies the distance of the point from the center during explode, which takes values in both pixels and percentage
    explodeOffset: '10',

    //If set true, all the points in the series will get exploded on load
    explodeAll: false,

    //Specifies index of the point, to be exploded on load
    explodeIndex:3

    }]
});
funnelChart.appendTo('#element')
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<!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>

Smart Data Label

It provides the data label smart arrangement of the funnel and pyramid series. The overlap data label will be placed on left side of the funnel/pyramid series.

Source
Preview
index.ts
index.html
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import {
AccumulationChart, AccumulationLegend, FunnelSeries, AccumulationTooltip, IAccLoadedEventArgs,
AccumulationDataLabel, IAccResizeEventArgs, AccumulationTheme
} from '@syncfusion/ej2-charts';
AccumulationChart.Inject(AccumulationLegend, FunnelSeries, AccumulationTooltip, AccumulationDataLabel);

let data: object[] = [
    { 'x': 'China', y: 1409517397, text: 'China' },
    { 'x': 'India', y: 1339180127, text: 'India' },
    { 'x': 'United States', y: 324459463, text: 'United States' },
    { 'x': 'Indonesia', y: 263991379, text: 'Indonesia' },
    { 'x': 'Brazil', y: 209288278, text: 'Brazil' },
    { 'x': 'Pakistan', y: 197015955, text: 'Pakistan' },
    { 'x': 'Nigeria', y: 190886311, text: 'Nigeria' },
    { 'x': 'Bangladesh', y: 164669751, text: 'Bangladesh' },
    { 'x': 'Russia', y: 143989754, text: 'Russia' },
    { 'x': 'Mexico', y: 129163276, text: 'Mexico' },
    { 'x': 'Japan', y: 127484450, text: ' Japan' },
    { 'x': 'Ethiopia', y: 104957438, text: 'Ethiopia' },
    { 'x': 'Philippines', y: 104918090, text: 'Philippines' },
    { 'x': 'Egypt', y: 97553151, text: 'Egypt' },
    { 'x': 'Vietnam', y: 95540800, text: 'Vietnam' },
    { 'x': 'Germany', y: 82114224, text: 'Germany' }];
let chart: AccumulationChart = new AccumulationChart({
    //Initializing Chart Series
    series: [{
        type: 'Funnel', dataSource: data, xName: 'x', yName: 'y',
        neckWidth: '15%',
        neckHeight: '18%',
        name: '2017 Population',
        dataLabel: {
            visible: true, position: 'Outside',
            connectorStyle: { length: '6%' }, name: 'text',
        },
        explode: false,
    }],
    legendSettings: {visible: false},
    //Initializing tooltip
    tooltip: { enable: true, format: '${point.x} : <b>${point.y}</b>' },
    load: (args: IAccLoadedEventArgs) => {
        let selectedTheme: string = location.hash.split('/')[1];
        selectedTheme = selectedTheme ? selectedTheme : 'Material';
        args.accumulation.theme = <AccumulationTheme>(selectedTheme.charAt(0).toUpperCase() +
        selectedTheme.slice(1)).replace(/-dark/i, 'Dark');
        if (args.accumulation.availableSize.width < args.accumulation.availableSize.height) {
            args.accumulation.series[0].width = '80%';
            args.accumulation.series[0].height = '70%';
        }
    },
    resized: (args: IAccResizeEventArgs) => {
        let bounds: ClientRect = document.getElementById('container').getBoundingClientRect();
        if (bounds.width < bounds.height) {
            args.accumulation.series[0].width = '80%';
            args.accumulation.series[0].height = '70%';
        } else {
            args.accumulation.series[0].width = '60%';
            args.accumulation.series[0].height = '80%';
        }
    },
    //Initializing Chart title
    title: 'Top population countries in the world 2017',
});
chart.appendTo('#element');
Copied to clipboard
<!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>

Customization

Individual points can be customized using the pointRender event.

Source
Preview
index.ts
index.html
Copied to clipboard
import { AccumulationChart, FunnelSeries, IAccPointRenderEventArgs } from '@syncfusion/ej2-charts';
import { funnelData } from './datasource.ts';
AccumulationChart.Inject(FunnelSeries);
let funnelChart: AccumulationChart = new AccumulationChart({
series: [{
    type: 'Funnel',
    dataSource: funnelData,
    xName: 'x', yName: 'y', gapRatio: 0.08}],

pointRender: (args: IAccPointRenderEventArgs) => {
    if ((args.point.x as string).indexOf('Downloaded') > -1) {
        args.fill = '#f4bc42';
    }
    else {
        args.fill = '#597cf9';
    }
},
}, '#element');
Copied to clipboard
<!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>

See Also