Your search did not match any results.
Vector Map

Palette

Documentation

This demo shows how to color specific map areas using a palette. In the VectorMap component, a palette defines a range of colors that are used to paint areas. This range is divided into segments using the value assigned to the colorGroups property. Each segment contributes a color into an array of colors.

The map in this demo represents the top 40 countries by population. Map areas are colored according to the percentage of population.

Apply
Reset
<dx-vector-map id="vector-map" [bounds]="[-180, 85, 180, -60]"> <dxo-tooltip [enabled]="true" [customizeTooltip]="customizeTooltip"></dxo-tooltip> <dxi-layer name="areas" palette="Violet" colorGroupingField="population" [colorGroups]="[0, 0.5, 0.8, 1, 2, 3, 100]" [dataSource]="worldMap" [customize]="customizeLayers"></dxi-layer> <dxi-legend [customizeText]="customizeText"> <dxo-source layer="areas" grouping="color"></dxo-source> </dxi-legend> </dx-vector-map>
import { NgModule, Component, enableProdMode } from '@angular/core'; import { BrowserModule } from '@angular/platform-browser'; import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; import { DxVectorMapModule } from 'devextreme-angular'; import * as mapsData from 'devextreme/dist/js/vectormap-data/world.js'; import { Service } from './app.service'; if(!/localhost/.test(document.location.host)) { enableProdMode(); } @Component({ selector: 'demo-app', providers: [ Service ], templateUrl: 'app/app.component.html', styleUrls: ['app/app.component.css'] }) export class AppComponent { worldMap: any = mapsData.world; populations: Object; constructor(service: Service) { this.populations = service.getPopulations(); this.customizeLayers = this.customizeLayers.bind(this); } customizeTooltip(arg) { if (arg.attribute("population")) { return { text: arg.attribute("name") + ": " + arg.attribute("population") + "% of world population" }; } } customizeLayers(elements) { elements.forEach((element) => { element.attribute("population", this.populations[element.attribute("name")]); }); } customizeText(arg) { let text; if(arg.index === 0) { text = '< 0.5%'; } else if(arg.index === 5) { text = '> 3%'; } else { text = arg.start + '% to ' + arg.end + '%'; } return text; } } @NgModule({ imports: [ BrowserModule, DxVectorMapModule ], declarations: [AppComponent], bootstrap: [AppComponent] }) export class AppModule { } platformBrowserDynamic().bootstrapModule(AppModule);
::ng-deep #vector-map { height: 440px; }
import { Injectable } from '@angular/core'; let populations: Object = { "China": 19, "India": 17.4, "United States": 4.44, "Indonesia": 3.45, "Brazil": 2.83, "Pakistan": 2.62, "Nigeria": 2.42, "Bangladesh": 2.18, "Russia": 2.04, "Japan": 1.77, "Mexico": 1.67, "Philippines": 1.39, "Vietnam": 1.25, "Ethiopia": 1.23, "Egypt": 1.21, "Germany": 1.13, "Iran": 1.08, "Turkey": 1.07, "Congo (Kinshasa)": 0.94, "France": 0.92, "Thailand": 0.9, "United Kingdom": 0.89, "Italy": 0.85, "Burma": 0.84, "South Africa": 0.74, "S. Korea": 0.7, "Colombia": 0.66, "Spain": 0.65, "Tanzania": 0.63, "Kenya": 0.62, "Ukraine": 0.6, "Argentina": 0.59, "Algeria": 0.54, "Poland": 0.54, "Sudan": 0.52, "Canada": 0.49, "Uganda": 0.49, "Iraq": 0.47, "Morocco": 0.46, "Uzbekistan": 0.43 }; @Injectable() export class Service { getPopulations(): Object { return populations; } }
// 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/dist/js/vectormap-data/*': { 'esModule': true }, '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': 'npm:@angular', 'tslib': 'npm:tslib@2.3.0/tslib.js', 'rxjs': 'npm:rxjs@6.4.0', 'devextreme/dist/js/vectormap-data': 'js/vectormap-data', 'rrule': 'npm:rrule@2.6.6/dist/es5/rrule.js', 'luxon': 'npm:luxon@1.27.0/build/global/luxon.min.js', 'es6-object-assign': 'npm:es6-object-assign@1.1.0', 'devextreme': 'npm:devextreme@21.1.4/cjs', 'devextreme/bundles/dx.all': 'npm:devextreme@21.1.4/bundles/dx.all.js', 'jszip': 'npm:jszip@3.6.0/dist/jszip.min.js', 'devextreme-quill': 'npm:devextreme-quill@1.1.4/dist/dx-quill.min.js', 'devexpress-diagram': 'npm:devexpress-diagram@2.1.19', 'devexpress-gantt': 'npm:devexpress-gantt@2.1.42', 'devextreme-angular': 'npm:devextreme-angular@21.1.4', '@devextreme/vdom': 'npm:@devextreme/vdom@1.2.2', 'inferno': 'npm:inferno@7.4.8/dist/inferno.min.js', 'inferno-compat': 'npm:inferno-compat@7.4.8/dist/inferno-compat.min.js', 'inferno-create-element': 'npm:inferno-create-element@7.4.8/dist/inferno-create-element.min.js', 'inferno-dom': 'npm:inferno-dom@1.0.7/dist/inferno-dom.min.js', 'inferno-hydrate': 'npm:inferno-hydrate@7.4.8/dist/inferno-hydrate.min.js', 'inferno-clone-vnode': 'npm:inferno-clone-vnode@7.4.8/dist/inferno-clone-vnode.min.js', 'inferno-create-class': 'npm:inferno-create-class@7.4.8/dist/inferno-create-class.min.js', 'inferno-extras': 'npm:inferno-extras@7.4.8/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:@angular/*/package.json", "npm:@angular/common/*/package.json", "npm:rxjs/package.json", "npm:rxjs/operators/package.json", "npm:devextreme-angular/*/package.json", "npm:devextreme-angular/ui/*/package.json", "npm:devextreme-angular/package.json", "npm:devexpress-diagram/package.json", "npm:devexpress-gantt/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/21.1.4/css/dx.common.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/21.1.4/css/dx.light.css" /> <script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script> <script src="https://unpkg.com/zone.js@0.10.2/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="https://unpkg.com/jquery@3.5.1/dist/jquery.min.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>