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Angular Vector Map - Image Markers

This demo shows how to use markers of the «image» type in the VectorMap. Each marker on the map represents weather forecast for a particular city.

Backend API
<dx-vector-map id="vector-map" [bounds]="[-118, 52, -80, 20]"> <dxo-vector-map-loading-indicator [show]="true" ></dxo-vector-map-loading-indicator> <dxi-vector-map-layer [dataSource]="usaMap" borderColor="#ffffff" [hoverEnabled]="false" ></dxi-vector-map-layer> <dxi-vector-map-layer [dataSource]="weather" dataField="url" elementType="image" type="marker" [size]="51" > <dxo-vector-map-label dataField="text"> <dxo-vector-map-font [size]="14"></dxo-vector-map-font> </dxo-vector-map-label> </dxi-vector-map-layer> </dx-vector-map>
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/usa.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 { usaMap = mapsData.usa; weather: FeatureCollection; constructor(service: Service) { this.weather = service.getWeatherData(); } } 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; url: string; } export class FeatureGeometry { type: string; coordinates: number[]; } function getImageUrl(name): string { return `../../../../images/VectorMap/${name}.png`; } const weatherData: FeatureCollection = { type: 'FeatureCollection', features: [{ type: 'Feature', geometry: { type: 'Point', coordinates: [-74.007118, 40.71455], }, properties: { url: getImageUrl('Storm'), text: 'New York', }, }, { type: 'Feature', geometry: { type: 'Point', coordinates: [-77.016251, 38.904758], }, properties: { url: getImageUrl('Cloudy'), text: 'Washington', }, }, { type: 'Feature', geometry: { type: 'Point', coordinates: [-81.674782, 30.332251], }, properties: { url: getImageUrl('Storm'), text: 'Jacksonville', }, }, { type: 'Feature', geometry: { type: 'Point', coordinates: [-84.423058, 33.763191], }, properties: { url: getImageUrl('Rain'), text: 'Atlanta', }, }, { type: 'Feature', geometry: { type: 'Point', coordinates: [-97.514839, 35.466179], }, properties: { url: getImageUrl('PartlyCloudy'), text: 'Oklahoma City', }, }, { type: 'Feature', geometry: { type: 'Point', coordinates: [-87.632408, 41.884151], }, properties: { url: getImageUrl('Rain'), text: 'Chicago', }, }, { type: 'Feature', geometry: { type: 'Point', coordinates: [-93.103882, 44.947769], }, properties: { url: getImageUrl('PartlyCloudy'), text: 'St. Paul', }, }, { type: 'Feature', geometry: { type: 'Point', coordinates: [-94.626823, 39.113522], }, properties: { url: getImageUrl('Cloudy'), text: 'Kansas City', }, }, { type: 'Feature', geometry: { type: 'Point', coordinates: [-95.381889, 29.775419], }, properties: { url: getImageUrl('Sunny'), text: 'Houston', }, }, { type: 'Feature', geometry: { type: 'Point', coordinates: [-104.991997, 39.740002], }, properties: { url: getImageUrl('PartlyCloudy'), text: 'Denver', }, }, { type: 'Feature', geometry: { type: 'Point', coordinates: [-116.193413, 43.606979], }, properties: { url: getImageUrl('Sunny'), text: 'Boise', }, }, { type: 'Feature', geometry: { type: 'Point', coordinates: [-118.245003, 34.053501], }, properties: { url: getImageUrl('PartlyCloudy'), text: 'Los Angeles', }, }, { type: 'Feature', geometry: { type: 'Point', coordinates: [-121.886002, 37.3386], }, properties: { url: getImageUrl('PartlyCloudy'), text: 'San Jose', }, }, { type: 'Feature', geometry: { type: 'Point', coordinates: [-123.0252, 44.923199], }, properties: { url: getImageUrl('Sunny'), text: 'Salem', }, }, { type: 'Feature', geometry: { type: 'Point', coordinates: [-122.329437, 47.603561], }, properties: { url: getImageUrl('Sunny'), text: 'Seattle', }, }], }; @Injectable() export class Service { getWeatherData(): FeatureCollection { return weatherData; } }
<!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>