Demos
OLAP(React)
PivotChart
Export

Pivot Chart Export (React)

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

This example uses React.

JavaScript
Angular
Vue
React
app.jsx
index.html
app.css
data.jsx
Copy to CodeMine
import 'bootstrap.css';
import '@mescius/wijmo.styles/wijmo.css';
import ReactDOM from 'react-dom/client';
import React, { useRef, useState } from 'react';
import useEvent from 'react-use-event-hook';
import * as Olap from '@mescius/wijmo.react.olap';
import * as wjcOlap from '@mescius/wijmo.olap';
import '@mescius/wijmo.chart.render';
import './app.css';
import { data } from './data';
const ngChart = new wjcOlap.PivotEngine({
    itemsSource: data,
    valueFields: ['Amount'],
    rowFields: ['Buyer', 'Type'], // by buyer and type
});
function App() {
    const [showTitle, setShowTitle] = useState(true);
    const pivotChartRef = useRef();
    const handleInputChange = (input) => {
        setShowTitle(input.target.checked);
    };
    const initializePivotChart = useEvent((pivotChart) => {
        pivotChartRef.current = pivotChart;
        pivotChartRef.current.engine.fields.getField('Amount').format = 'c0';
    });
    const onExportClick = (e) => {
        if (e.target instanceof HTMLButtonElement) {
            pivotChartRef.current.saveImageToFile('FlexChart.' + e.target.textContent.trim());
        }
    };
    return (<div className="container-fluid">
      <Olap.PivotChart showTitle={showTitle} itemsSource={ngChart} initialized={initializePivotChart} showLegend="Auto"/>
      <br />
      <label>
        Show Chart Title <input id="chartTitle" type="checkbox" defaultChecked onChange={handleInputChange}/>
      </label>
      <div className="btn-container" onClick={onExportClick}>
        Export to
        <button className="btn btn-default">PNG</button>
        <button className="btn btn-default">JPEG</button>
        <button className="btn btn-default">SVG</button>
      </div>
    </div>);
}
const container = document.getElementById('app');
if (container) {
    const root = ReactDOM.createRoot(container);
    root.render(<App />);
}
import 'bootstrap.css'; import '@mescius/wijmo.styles/wijmo.css'; import ReactDOM from 'react-dom/client'; import React, { useRef, useState } from 'react'; import useEvent from 'react-use-event-hook'; import * as Olap from '@mescius/wijmo.react.olap'; import * as wjcOlap from '@mescius/wijmo.olap'; import '@mescius/wijmo.chart.render'; import './app.css'; import { data } from './data'; const ngChart = new wjcOlap.PivotEngine({ itemsSource: data, valueFields: ['Amount'], rowFields: ['Buyer', 'Type'], // by buyer and type }); function App() { const [showTitle, setShowTitle] = useState(true); const pivotChartRef = useRef(); const handleInputChange = (input) => { setShowTitle(input.target.checked); }; const initializePivotChart = useEvent((pivotChart) => { pivotChartRef.current = pivotChart; pivotChartRef.current.engine.fields.getField('Amount').format = 'c0'; }); const onExportClick = (e) => { if (e.target instanceof HTMLButtonElement) { pivotChartRef.current.saveImageToFile('FlexChart.' + e.target.textContent.trim()); } }; return (<div className="container-fluid"> <Olap.PivotChart showTitle={showTitle} itemsSource={ngChart} initialized={initializePivotChart} showLegend="Auto"/> <br /> <label> Show Chart Title <input id="chartTitle" type="checkbox" defaultChecked onChange={handleInputChange}/> </label> <div className="btn-container" onClick={onExportClick}> Export to <button className="btn btn-default">PNG</button> <button className="btn btn-default">JPEG</button> <button className="btn btn-default">SVG</button> </div> </div>); } const container = document.getElementById('app'); if (container) { const root = ReactDOM.createRoot(container); root.render(<App />); }
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>MESCIUS Wijmo 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/0.19.40/system.src.js" integrity="sha512-G6mEj6h18+m3MvzdviSDfPle/TfH0//cXcB33AKlNR/Rha0yQsKefDZKRTkIZos97HEGq2JMV1RT5ybMoQ3WsQ==" crossorigin="anonymous"></script> <script src="systemjs.config.js"></script> <script> System.import('./src/app'); </script> </head> <body> <div id="app"></div> </body> </html>
.wj-pivotchart { margin: auto; } .wj-pivotchart .wj-flexchart { border: none; height: 300px; } .wj-combobox { margin-left: 10px; } .btn-default { margin-left: 3px; }
// list of country GDP and populations https://en.wikipedia.org/wiki/List_of_IMF_ranked_countries_by_GDP 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 }, ]; } export const data = getData();
(function (global) { window.process = { env: { NODE_ENV: "production" } } System.config({ transpiler: 'plugin-babel', babelOptions: { es2015: true, react: true }, meta: { '*.css': { loader: 'css' } }, paths: { // paths serve as alias 'npm:': 'node_modules/' }, // map tells the System loader where to look for things map: { 'jszip': 'npm:jszip/dist/jszip.js', '@mescius/wijmo': 'npm:@mescius/wijmo/index.js', '@mescius/wijmo.input': 'npm:@mescius/wijmo.input/index.js', '@mescius/wijmo.styles': 'npm:@mescius/wijmo.styles', '@mescius/wijmo.cultures': 'npm:@mescius/wijmo.cultures', '@mescius/wijmo.chart': 'npm:@mescius/wijmo.chart/index.js', '@mescius/wijmo.chart.analytics': 'npm:@mescius/wijmo.chart.analytics/index.js', '@mescius/wijmo.chart.animation': 'npm:@mescius/wijmo.chart.animation/index.js', '@mescius/wijmo.chart.annotation': 'npm:@mescius/wijmo.chart.annotation/index.js', '@mescius/wijmo.chart.finance': 'npm:@mescius/wijmo.chart.finance/index.js', 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'systemjs-babel-build':'npm:systemjs-plugin-babel/systemjs-babel-browser.js', "react-use-event-hook": "npm:react-use-event-hook/dist/esm/useEvent.js", }, // packages tells the System loader how to load when no filename and/or no extension packages: { src: { defaultExtension: 'jsx' }, "node_modules": { defaultExtension: 'js' }, } }); })(this);