Pivot Chart Export

The PivotChart can be exported to a file as well. Use the chart's saveImageToFile method to export the chart to an image file. This example shows how to export the PivotChart to PNG, JPEG and SVG file formats.

Learn about OLAP | PivotChart Documentation | PivotChart API Reference

import 'bootstrap.css'; import '@mescius/wijmo.styles/wijmo.css'; import './styles.css'; import * as wjOlap from '@mescius/wijmo.olap'; import { getData } from './data'; import '@mescius/wijmo.chart.render'; // document.readyState === 'complete' ? init() : window.onload = init; // function init() { // // initialize pivot engine var ngChart = new wjOlap.PivotEngine({ itemsSource: getData(), valueFields: ['Amount'], rowFields: ['Buyer', 'Type'], // by buyer and type }); ngChart.fields.getField('Amount').format = 'c0'; // customize field // // show the chart var pivotChart = new wjOlap.PivotChart('#pivotChart', { itemsSource: ngChart, showTitle: true, showLegend: 'Auto' }); // // toggle chart title document.getElementById('chartTitle').addEventListener('click', function (e) { pivotChart.showTitle = e.target.checked; }); // // export the chart to an image document.getElementById('export').addEventListener('click', function (e) { if (e.target instanceof HTMLButtonElement) { var ext = e.target.textContent.trim(); pivotChart.saveImageToFile('FlexChart.' + ext); } }); // }
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>MESCIUS Wijmo OLAP Pivot Chart Export</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- SystemJS --> <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.21.5/system.src.js" integrity="sha512-skZbMyvYdNoZfLmiGn5ii6KmklM82rYX2uWctBhzaXPxJgiv4XBwJnFGr5k8s+6tE1pcR1nuTKghozJHyzMcoA==" crossorigin="anonymous"></script> <script src="systemjs.config.js"></script> <script> System.import('./src/app'); </script> </head> <body> <div class="container-fluid"> <div id="pivotChart"></div> <label> Show Chart Title <input id="chartTitle" type="checkbox" checked="checked"> </label> <div id="export"> Export to <button class="btn btn-default">PNG</button> <button class="btn btn-default">JPEG</button> <button class="btn btn-default">SVG</button> </div> </div> </body> </html>
// get the raw data export function getData() { var yr = new Date().getFullYear(); return [{ date: new Date(yr, 0, 1), buyer: 'Mom', type: 'Fuel', amount: 74 }, { date: new Date(yr, 0, 15), buyer: 'Mom', type: 'Food', amount: 235 }, { date: new Date(yr, 0, 17), buyer: 'Dad', type: 'Sports', amount: 20 }, { date: new Date(yr, 0, 21), buyer: 'Kelly', type: 'Books', amount: 125 }, { date: new Date(yr, 1, 2), buyer: 'Mom', type: 'Food', amount: 235 }, { date: new Date(yr, 1, 20), buyer: 'Kelly', type: 'Music', amount: 20 }, { date: new Date(yr, 1, 25), buyer: 'Kelly', type: 'Tickets', amount: 125 }, ]; }
.wj-pivotchart { margin: auto; max-width: 600px; } .wj-pivotchart .wj-flexchart { border: none; height: 300px; } body { margin-bottom: 48pt; }
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