Print and export in EJ2 TypeScript Treemap control

19 Apr 202316 minutes to read

Print

To use the print functionality, we should inject the Print module and set the allowPrint property to true. The rendered treemap can be printed directly from the browser by calling the method print.

index.ts
index.html
import { TreeMap, Print } from '@syncfusion/ej2-treemap';
TreeMap.Inject(Print);
let treemap: TreeMap = new TreeMap({
    allowPrint: true,
     dataSource: [
    {State:"United States", GDP:17946, percentage:11.08, Rank:1},
    {State:"China", GDP:10866, percentage: 28.42, Rank:2},
    {State:"Japan", GDP:4123, percentage:-30.78, Rank:3},
    {State:"Germany", GDP:3355, percentage:-5.19, Rank:4},
    {State:"United Kingdom", GDP:2848, percentage:8.28, Rank:5},
    {State:"France", GDP:2421, percentage:-9.69, Rank:6},
    {State:"India", GDP:2073, percentage:13.65, Rank:7},
    {State:"Italy", GDP:1814, percentage:-12.45, Rank:8},
    {State:"Brazil", GDP:1774, percentage:-27.88, Rank:9},
    {State:"Canada", GDP:1550, percentage:-15.02, Rank:10}
],
        weightValuePath: 'GDP',
        leafItemSettings: {
            labelPath: 'State',
            labelFormat: '${State}<br>$${GDP} Trillion<br>(${percentage} %)',
            labelStyle: {
                color: '#000000'
            },
            border: {
                color: '#000000',
                width: 0.5
            },
      }
}, '#container');
document.getElementById('print').onclick = () => {
        treemap.print();
};
<!DOCTYPE html>
<html lang="en">

<head>
    <title>Essential JS 2 for Treemap </title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Essential JS 2 for treemap UI Control" />
    <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>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
    </div>
    <button id= "print" type="button" width ='15%' style="float: right">Print</button>
</body>

</html>

Export

Image Export

To use the image export functionality, we should inject the ImageExport module and set the allowImageExport property to true. The rendered treemap can be exported as an image using the export method. The method requires two parameters: image type and file name. The treemap can be exported as an image in the following formats.

JPEG
PNG
SVG

index.ts
index.html
import { TreeMap, ImageExport } from '@syncfusion/ej2-treemap';
TreeMap.Inject(ImageExport);
let treemap: TreeMap = new TreeMap({
    allowImageExport: true,
     dataSource: [
    {State:"United States", GDP:17946, percentage:11.08, Rank:1},
    {State:"China", GDP:10866, percentage: 28.42, Rank:2},
    {State:"Japan", GDP:4123, percentage:-30.78, Rank:3},
    {State:"Germany", GDP:3355, percentage:-5.19, Rank:4},
    {State:"United Kingdom", GDP:2848, percentage:8.28, Rank:5},
    {State:"France", GDP:2421, percentage:-9.69, Rank:6},
    {State:"India", GDP:2073, percentage:13.65, Rank:7},
    {State:"Italy", GDP:1814, percentage:-12.45, Rank:8},
    {State:"Brazil", GDP:1774, percentage:-27.88, Rank:9},
    {State:"Canada", GDP:1550, percentage:-15.02, Rank:10}
],
        weightValuePath: 'GDP',
        leafItemSettings: {
            labelPath: 'State',
            labelFormat: '${State}<br>$${GDP} Trillion<br>(${percentage} %)',
            labelStyle: {
                color: '#000000'
            },
            border: {
                color: '#000000',
                width: 0.5
            },
      }
}, '#container');
document.getElementById('export').onclick = () => {
        treemap.export("PNG","TreeMap");
};
<!DOCTYPE html>
<html lang="en">

<head>
    <title>Essential JS 2 for Treemap </title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Essential JS 2 for treemap UI Control" />
    <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>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
    </div>
    <button id= "export" type="button" width ='15%' style="float: right">Export</button>
</body>

</html>

We can get the image file as base64 string for the JPEG and PNG formats. The treemap can be exported to image as a base64 string using the export method. There are four parameters required: image type, file name, orientation of the exported PDF document which must be set as null for image export and finally allowDownload which should be set as false to return base64 string.

index.ts
index.html
import { TreeMap, ImageExport} from '@syncfusion/ej2-treemap';
TreeMap.Inject(ImageExport);
let treemap: TreeMap = new TreeMap({
    allowImageExport: true,
     dataSource: [
    {State:"United States", GDP:17946, percentage:11.08, Rank:1},
    {State:"China", GDP:10866, percentage: 28.42, Rank:2},
    {State:"Japan", GDP:4123, percentage:-30.78, Rank:3},
    {State:"Germany", GDP:3355, percentage:-5.19, Rank:4},
    {State:"United Kingdom", GDP:2848, percentage:8.28, Rank:5},
    {State:"France", GDP:2421, percentage:-9.69, Rank:6},
    {State:"India", GDP:2073, percentage:13.65, Rank:7},
    {State:"Italy", GDP:1814, percentage:-12.45, Rank:8},
    {State:"Brazil", GDP:1774, percentage:-27.88, Rank:9},
    {State:"Canada", GDP:1550, percentage:-15.02, Rank:10}
],
        weightValuePath: 'GDP',
        leafItemSettings: {
            labelPath: 'State',
            labelFormat: '${State}<br>$${GDP} Trillion<br>(${percentage} %)',
            labelStyle: {
                color: '#000000'
            },
            border: {
                color: '#000000',
                width: 0.5
            },
      }
}, '#container');
document.getElementById('export').onclick = () => {
        treemap.export('JPEG', 'TreeMap', null, false).then((data) => {
            let base64 = data;
            document.writeln(base64);
        });
};
<!DOCTYPE html>
<html lang="en">

<head>
    <title>Essential JS 2 for Treemap </title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Essential JS 2 for treemap UI Control" />
    <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>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
    </div>
    <button id= "export" type="button" width ='15%' style="float: right">Export</button>
</body>

</html>

PDF Export

To use the PDF export functionality, we should inject the PdfExport module and set the allowPdfExport property to true. The rendered treemap can be exported as PDF using the export method. The export method requires three parameters: file type, file name and orientation of the PDF document. The orientation setting is optional and 0 indicates portrait and 1 indicates landscape.

index.ts
index.html
import { TreeMap, PdfExport } from '@syncfusion/ej2-treemap';
TreeMap.Inject(PdfExport);
let treemap: TreeMap = new TreeMap({
    allowPdfExport: true,
     dataSource: [
    {State:"United States", GDP:17946, percentage:11.08, Rank:1},
    {State:"China", GDP:10866, percentage: 28.42, Rank:2},
    {State:"Japan", GDP:4123, percentage:-30.78, Rank:3},
    {State:"Germany", GDP:3355, percentage:-5.19, Rank:4},
    {State:"United Kingdom", GDP:2848, percentage:8.28, Rank:5},
    {State:"France", GDP:2421, percentage:-9.69, Rank:6},
    {State:"India", GDP:2073, percentage:13.65, Rank:7},
    {State:"Italy", GDP:1814, percentage:-12.45, Rank:8},
    {State:"Brazil", GDP:1774, percentage:-27.88, Rank:9},
    {State:"Canada", GDP:1550, percentage:-15.02, Rank:10}
],
        weightValuePath: 'GDP',
        leafItemSettings: {
            labelPath: 'State',
            labelFormat: '${State}<br>$${GDP} Trillion<br>(${percentage} %)',
            labelStyle: {
                color: '#000000'
            },
            border: {
                color: '#000000',
                width: 0.5
            },
      }
}, '#container');
document.getElementById('export').onclick = () => {
        treemap.export("PDF", "TreeMap", 0);
};
<!DOCTYPE html>
<html lang="en">

<head>
    <title>Essential JS 2 for Treemap </title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Essential JS 2 for treemap UI Control" />
    <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>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
    </div>
    <button id= "export" type="button" width ='15%' style="float: right">Export</button>
</body>

</html>

The exporting of the treemap as base64 string is not supported in the PDF export.