Your search did not match any results.
Tree Map

Hierarchical Data Structure

Documentation

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

www.wikipedia.org
Backend API
Copy to CodeSandBox
Apply
Reset
<dx-tree-map id="treemap" [dataSource]="citiesPopulations" title="The Most Populated Cities by Continents" > <dxo-tooltip [enabled]="true" format="thousands" [customizeTooltip]="customizeTooltip" ></dxo-tooltip> </dx-tree-map>
import { NgModule, Component, enableProdMode } from '@angular/core'; import { BrowserModule } from '@angular/platform-browser'; import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; import { DxTreeMapModule } from 'devextreme-angular'; import { CitiesPopulation, Service } from './app.service'; if (!/localhost/.test(document.location.host)) { enableProdMode(); } @Component({ selector: 'demo-app', templateUrl: 'app/app.component.html', styleUrls: ['app/app.component.css'], providers: [Service], }) export class AppComponent { citiesPopulations: CitiesPopulation[]; constructor(service: Service) { this.citiesPopulations = service.getCitiesPopulations(); } customizeTooltip(arg) { const data = arg.node.data; let result = null; if (arg.node.isLeaf()) { result = `<span class='city'>${data.name}</span> (${ data.country})<br/>Population: ${arg.valueText}`; } return { text: result, }; } } @NgModule({ imports: [ BrowserModule, DxTreeMapModule, ], declarations: [AppComponent], bootstrap: [AppComponent], }) export class AppModule { } platformBrowserDynamic().bootstrapModule(AppModule);
::ng-deep #treemap { height: 500px; } ::ng-deep .city { font-weight: 500; }
import { Injectable } from '@angular/core'; export interface CityPopulation { value: number; name: string; country: string; } export interface CitiesPopulation { name: string; items: CityPopulation[]; } const citiesPopulations: 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', }], }]; @Injectable() export class Service { getCitiesPopulations() { return citiesPopulations; } }
// In real applications, you should not transpile code in the browser. // You can see how to create your own application with Angular and DevExtreme here: // https://js.devexpress.com/Documentation/Guide/Angular_Components/Getting_Started/Create_a_DevExtreme_Application/ window.config = { transpiler: 'ts', typescriptOptions: { module: 'system', emitDecoratorMetadata: true, experimentalDecorators: true, }, meta: { 'typescript': { 'exports': 'ts', }, 'devextreme/localization.js': { 'esModule': true, }, }, paths: { 'npm:': 'https://unpkg.com/', }, map: { 'ts': 'npm:plugin-typescript@8.0.0/lib/plugin.js', 'typescript': 'npm:typescript@3.5.3/lib/typescript.js', '@angular/core': 'npm:@angular/core@12.2.13', '@angular/platform-browser': 'npm:@angular/platform-browser@12.2.13', '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic@12.2.13', '@angular/forms': 'npm:@angular/forms@12.2.13', '@angular/common/http': 'npm:@angular/common@12.2.13/bundles/common-http.umd.js', '@angular/common': 'npm:@angular/common@12.2.13', '@angular/compiler': 'npm:@angular/compiler@12.2.13', 'tslib': 'npm:tslib@2.3.1/tslib.js', 'rxjs': 'npm:rxjs@6.4.0', 'rrule': 'npm:rrule@2.6.6/dist/es5/rrule.js', 'luxon': 'npm:luxon@1.28.0/build/global/luxon.min.js', 'es6-object-assign': 'npm:es6-object-assign@1.1.0', 'devextreme': 'npm:devextreme@21.2.3/cjs', 'devextreme/bundles/dx.all': 'npm:devextreme@21.2.3/bundles/dx.all.js', 'jszip': 'npm:jszip@3.7.1/dist/jszip.min.js', 'devextreme-quill': 'npm:devextreme-quill@1.5.5/dist/dx-quill.min.js', 'devexpress-diagram': 'npm:devexpress-diagram@2.1.37', 'devexpress-gantt': 'npm:devexpress-gantt@3.1.24', 'devextreme-angular': 'npm:devextreme-angular@21.2.3', '@devextreme/vdom': 'npm:@devextreme/vdom@2.2.3', '@devextreme/runtime': 'npm:@devextreme/runtime@2.3.8', 'inferno': 'npm:inferno@7.4.10/dist/inferno.min.js', 'inferno-compat': 'npm:inferno-compat@7.4.10/dist/inferno-compat.min.js', 'inferno-create-element': 'npm:inferno-create-element@7.4.10/dist/inferno-create-element.min.js', 'inferno-dom': 'npm:inferno-dom@1.0.7/dist/inferno-dom.min.js', 'inferno-hydrate': 'npm:inferno-hydrate@7.4.10/dist/inferno-hydrate.min.js', 'inferno-clone-vnode': 'npm:inferno-clone-vnode@7.4.10/dist/inferno-clone-vnode.min.js', 'inferno-create-class': 'npm:inferno-create-class@7.4.10/dist/inferno-create-class.min.js', 'inferno-extras': 'npm:inferno-extras@7.4.10/dist/inferno-extras.min.js', }, packages: { 'app': { main: './app.component.ts', defaultExtension: 'ts', }, 'devextreme': { defaultExtension: 'js', }, '@devextreme/vdom': { defaultExtension: 'js', }, 'devextreme/events/utils': { main: 'index', }, 'devextreme/events': { main: 'index', }, 'es6-object-assign': { main: './index.js', defaultExtension: 'js', }, }, packageConfigPaths: [ 'npm:@devextreme/*/package.json', 'npm:@devextreme/runtime@2.3.8/inferno/package.json', 'npm:@angular/*/package.json', 'npm:@angular/common/*/package.json', 'npm:rxjs@6.4.0/package.json', 'npm:rxjs@6.4.0/operators/package.json', 'npm:devextreme-angular/*/package.json', 'npm:devextreme-angular@21.2.3/ui/*/package.json', 'npm:devextreme-angular@21.2.3/package.json', 'npm:devexpress-diagram@2.1.37/package.json', 'npm:devexpress-gantt@3.1.24/package.json', ], }; System.config(window.config);
<!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <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/21.2.3/css/dx.common.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/21.2.3/css/dx.light.css" /> <script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script> <script src="https://unpkg.com/zone.js@0.11.4/dist/zone.js"></script> <script src="https://unpkg.com/reflect-metadata@0.1.3/Reflect.js"></script> <script src="https://unpkg.com/systemjs@0.21.3/dist/system.js"></script> <script src="config.js"></script> <script> System.import("app").catch(console.error.bind(console)); </script> </head> <body class="dx-viewport"> <div class="demo-container"> <demo-app>Loading...</demo-app> </div> </body> </html>