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Tree Map

Plain Data Structure

Documentation

In this demo, the TreeMap widget accepts a data source of a plain structure.

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<template> <dx-tree-map id="treemap" :data-source="citiesPopulation" title="The Most Populated Cities by Continents" id-field="id" parent-field="parentId" > <dx-tooltip :enabled="true" :customize-tooltip="customizeTooltip" format="thousands" /> </dx-tree-map> </template> <script> import DxTreeMap, { DxTooltip } from 'devextreme-vue/tree-map'; import { citiesPopulation } from './data.js'; export default { components: { DxTreeMap, DxTooltip }, data() { return { citiesPopulation }; }, methods: { 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 }; } } }; </script> <style> #treemap { height: 500px; } .city { font-weight: 500; } </style>
import Vue from 'vue'; import App from './App.vue'; new Vue({ el: '#app', components: { App }, template: '<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" /> <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>
export const citiesPopulation = [{ id: '1', name: 'Africa' }, { id: '1_1', parentId: '1', value: 21324000, name: 'Lagos', country: 'Nigeria' }, { id: '1_2', parentId: '1', value: 9735000, name: 'Kinshasa', country: 'Democratic Republic of the Congo' }, { id: '1_3', parentId: '1', value: 9278441, name: 'Cairo', country: 'Egypt' }, { id: '2', name: 'Asia' }, { id: '2_1', parentId: '2', value: 24256800, name: 'Shanghai', country: 'China' }, { id: '2_2', parentId: '2', value: 23500000, name: 'Karachi', country: 'Pakistan' }, { id: '2_3', parentId: '2', value: 21516000, name: 'Beijing', country: 'China' }, { id: '2_4', parentId: '2', value: 16787941, name: 'Delhi', country: 'India' }, { id: '2_5', parentId: '2', value: 15200000, name: 'Tianjin', country: 'China' }, { id: '3', name: 'Australia' }, { id: '3_1', parentId: '3', value: 4840600, name: 'Sydney', country: 'Austraila' }, { id: '3_2', parentId: '3', value: 4440000, name: 'Melbourne', country: 'Austraila' }, { id: '4', name: 'Europe' }, { id: '4_1', parentId: '4', value: 14160467, name: 'Istanbul', country: 'Turkey' }, { id: '4_2', parentId: '4', value: 12197596, name: 'Moscow', country: 'Russia' }, { id: '4_3', parentId: '4', value: 8538689, name: 'London', country: 'United Kingdom' }, { id: '4_4', parentId: '4', value: 5191690, name: 'Saint Petersburg', country: 'Russia' }, { id: '4_5', parentId: '4', value: 4470800, name: 'Ankara', country: 'Turkey' }, { id: '4_6', parentId: '4', value: 3517424, name: 'Berlin', country: 'Germany' }, { id: '5', name: 'North America' }, { id: '5_1', parentId: '5', value: 8874724, name: 'Mexico City', country: 'Mexico' }, { id: '5_2', parentId: '5', value: 8550405, name: 'New York City', country: 'United States' }, { id: '5_3', parentId: '5', value: 3884307, name: 'Los Angeles', country: 'United States' }, { id: '5_4', parentId: '5', value: 2808503, name: 'Toronto', country: 'Canada' }, { id: '6', name: 'South America' }, { id: '6_1', parentId: '6', value: 11895893, name: 'São Paulo', country: 'Brazil' }, { id: '6_2', parentId: '6', value: 8693387, name: 'Lima', country: 'Peru' }, { id: '6_3', parentId: '6', value: 7776845, name: 'Bogotá', country: 'Colombia' }, { id: '6_4', parentId: '6', value: 6429923, name: 'Rio de Janeiro', country: 'Brazil' }];
System.config({ transpiler: 'plugin-babel', paths: { 'npm:': 'https://unpkg.com/' }, map: { vue: 'npm:vue@2.6.3/dist/vue.esm.browser.js', 'vue-loader': 'npm:dx-systemjs-vue-browser@latest/index.js', 'devextreme': 'npm:devextreme@19.2', 'devextreme-vue': 'npm:devextreme-vue@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', 'plugin-babel': 'npm:systemjs-plugin-babel@0/plugin-babel.js', 'systemjs-babel-build': 'npm:systemjs-plugin-babel@0/systemjs-babel-browser.js' }, meta: { '*.vue': { loader: 'vue-loader' } }, packages: { 'devextreme-vue': { main: 'index.js' }, 'devextreme': { defaultExtension: 'js' } }, babelOptions: { sourceMaps: false, stage0: true } });