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Tree Map

Hierarchical Data Structure

Documentation

The TreeMap widget visualizes hierarchical data as a set of nested rectangles whose sizes are proportional to the visualized values. In this demo, the widget accepts a data source of a hierarchical structure.

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import React from 'react'; import { citiesPopulation } from './data.js'; import TreeMap, { Tooltip } from 'devextreme-react/tree-map'; function App() { return ( <TreeMap id="treemap" dataSource={citiesPopulation} title="The Most Populated Cities by Continents" > <Tooltip enabled={true} format="thousands" customizeTooltip={customizeTooltip} /> </TreeMap> ); } function customizeTooltip(arg) { const data = arg.node.data; return { text: arg.node.isLeaf() ? `<span class="city">${data.name}</span> (${data.country})<br/>Population: ${arg.valueText}` : null }; } export default App;
import React from 'react'; import ReactDOM from 'react-dom'; import App from './App.js'; ReactDOM.render( <App />, document.getElementById('app') );
<!DOCTYPE html> <html> <head> <title>DevExtreme Demo</title> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/19.2.4/css/dx.common.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/19.2.4/css/dx.light.css" /> <link rel="stylesheet" type="text/css" href="styles.css" /> <script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script> <script src="https://unpkg.com/systemjs@0.21.3/dist/system.js"></script> <script type="text/javascript" src="config.js"></script> <script type="text/javascript"> System.import('./index.js'); </script> </head> <body class="dx-viewport"> <div class="demo-container"> <div id="app"></div> </div> </body> </html>
#treemap { height: 500px; } .city { font-weight: 500; }
export const citiesPopulation = [{ name: 'Africa', items: [{ value: 21324000, name: 'Lagos', country: 'Nigeria' }, { value: 9735000, name: 'Kinshasa', country: 'Democratic Republic of the Congo' }, { value: 9278441, name: 'Cairo', country: 'Egypt' }] }, { name: 'Asia', items: [{ value: 24256800, name: 'Shanghai', country: 'China' }, { value: 23500000, name: 'Karachi', country: 'Pakistan' }, { value: 21516000, name: 'Beijing', country: 'China' }, { value: 16787941, name: 'Delhi', country: 'India' }, { value: 15200000, name: 'Tianjin', country: 'China' }] }, { name: 'Australia', items: [{ value: 4840600, name: 'Sydney', country: 'Austraila' }, { value: 4440000, name: 'Melbourne', country: 'Austraila' }] }, { name: 'Europe', items: [{ value: 14160467, name: 'Istanbul', country: 'Turkey' }, { value: 12197596, name: 'Moscow', country: 'Russia' }, { value: 8538689, name: 'London', country: 'United Kingdom' }, { value: 5191690, name: 'Saint Petersburg', country: 'Russia' }, { value: 4470800, name: 'Ankara', country: 'Turkey' }, { value: 3517424, name: 'Berlin', country: 'Germany' }] }, { name: 'North America', items: [{ value: 8874724, name: 'Mexico City', country: 'Mexico' }, { value: 8550405, name: 'New York City', country: 'United States' }, { value: 3884307, name: 'Los Angeles', country: 'United States' }, { value: 2808503, name: 'Toronto', country: 'Canada' }] }, { name: 'South America', items: [{ value: 11895893, name: 'São Paulo', country: 'Brazil' }, { value: 8693387, name: 'Lima', country: 'Peru' }, { value: 7776845, name: 'Bogotá', country: 'Colombia' }, { value: 6429923, name: 'Rio de Janeiro', country: 'Brazil' }] }];
System.config({ transpiler: 'plugin-babel', paths: { 'npm:': 'https://unpkg.com/' }, defaultExtension: 'js', map: { 'react': 'npm:react@16/umd/react.development.js', 'react-dom': 'npm:react-dom@16/umd/react-dom.development.js', 'prop-types': 'npm:prop-types/prop-types.js', 'devextreme': 'npm:devextreme@19.2', 'devextreme-react': 'npm:devextreme-react@19.2', 'jszip': 'npm:jszip@3.1.3/dist/jszip.min.js', 'quill': 'npm:quill@1.3.7/dist/quill.js', 'devexpress-diagram': 'npm:devexpress-diagram', 'devexpress-gantt': 'npm:devexpress-gantt', // SystemJS plugins 'plugin-babel': 'npm:systemjs-plugin-babel@0/plugin-babel.js', 'systemjs-babel-build': 'npm:systemjs-plugin-babel@0/systemjs-babel-browser.js' }, packages: { 'devextreme': { defaultExtension: 'js' }, 'devextreme-react': { main: 'index.js' } }, babelOptions: { sourceMaps: false, stage0: true, react: true } });