Angular Vector Map - Bubble Markers

import { bootstrapApplication } from '@angular/platform-browser'; import { Component, enableProdMode, provideZoneChangeDetection } from '@angular/core'; import { DxVectorMapModule } from 'devextreme-angular'; import * as mapsData from 'devextreme-dist/js/vectormap-data/world.js'; import { FeatureCollection, Service } from './app.service'; if (!/localhost/.test(document.location.host)) { enableProdMode(); } @Component({ selector: 'demo-app', providers: [Service], templateUrl: './app.component.html', styleUrls: ['./app.component.css'], imports: [ DxVectorMapModule, ], }) export class AppComponent { worldMap = mapsData.world; markers: FeatureCollection; constructor(service: Service) { this.markers = service.getMarkers(); } customizeText = ({ index }) => ['< 8000K', '8000K to 10000K', '> 10000K'][index]; customizeItems = (items: unknown[]) => items.reverse(); customizeTooltip({ layer: { type }, attribute }) { if (type === 'marker') { return { text: attribute('tooltip'), }; } return null; } } bootstrapApplication(AppComponent, { providers: [ provideZoneChangeDetection({ eventCoalescing: true, runCoalescing: true }), ], });

::ng-deep #vector-map { height: 440px; }

import { Injectable } from '@angular/core'; export class FeatureCollection { type: string; features: Feature[]; } export class Feature { type: string; properties: FeatureProperty; geometry: FeatureGeometry; } export class FeatureProperty { text: string; value: number; tooltip: string; } export class FeatureGeometry { type: string; coordinates: number[]; } const markers: FeatureCollection = { type: 'FeatureCollection', features: [ { coordinates: [-74, 40.7], text: 'New York City', value: 8406, }, { coordinates: [100.47, 13.75], text: 'Bangkok', value: 8281, }, { coordinates: [44.43, 33.33], text: 'Baghdad', value: 7181, }, { coordinates: [37.62, 55.75], text: 'Moscow', value: 12111, }, { coordinates: [121.5, 31.2], text: 'Shanghai', value: 24150, }, { coordinates: [-43.18, -22.9], text: 'Rio de Janeiro', value: 6429, }, { coordinates: [31.23, 30.05], text: 'Cairo', value: 8922, }, { coordinates: [28.95, 41], text: 'Istanbul', value: 14160, }, { coordinates: [127, 37.55], text: 'Seoul', value: 10388, }, { coordinates: [139.68, 35.68], text: 'Tokyo', value: 9071, }, { coordinates: [103.83, 1.28], text: 'Singapore', value: 5399, }, { coordinates: [30.3, 59.95], text: 'Saint Petersburg', value: 5131, }, { coordinates: [28.03, -26.2], text: 'Johannesburg', value: 4434, }, { coordinates: [144.95, -37.8], text: 'Melbourne', value: 4252, }, ].map((data) => ({ type: 'Feature', geometry: { type: 'Point', coordinates: data.coordinates, }, properties: { text: data.text, value: data.value, tooltip: `<b>${data.text}</b>\n${data.value}K`, }, })), }; @Injectable() export class Service { getMarkers(): FeatureCollection { return markers; } }

<!DOCTYPE html> <html lang="en"> <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=5.0" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/26.1.5/css/dx.light.css" /> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script> <script>window.jQuery || document.write(decodeURIComponent('%3Cscript src="js/jquery.min.js"%3E%3C/script%3E'))</script> </head> <body class="dx-viewport"> <div class="demo-container"> <demo-app>Loading...</demo-app> </div> <script src="https://cdn.jsdelivr.net/npm/zone.js@0.16.2/bundles/zone.umd.js"></script> <script src="./bundle.js" type="module"></script> </body> </html>