Bubble Markers
Documentation
This example demonstrates how you can flag specific locations on the VectorMap using markers of the «bubble» type. Marker size depends upon the attribute specified by the dataField property.
Feel free to share demo-related thoughts here.
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Backend API
<dx-vector-map id="vector-map" [bounds]="[-180, 85, 180, -60]">
<dxo-tooltip
[enabled]="true"
[customizeTooltip]="customizeTooltip"
></dxo-tooltip>
<dxi-layer [dataSource]="worldMap" [hoverEnabled]="false"></dxi-layer>
<dxi-layer
[dataSource]="markers"
[minSize]="20"
[maxSize]="40"
[sizeGroups]="[0, 8000, 10000, 50000]"
[opacity]="0.8"
name="bubbles"
elementType="bubble"
dataField="value"
></dxi-layer>
<dxi-legend
markerShape="circle"
[customizeText]="customizeText"
[customizeItems]="customizeItems"
>
<dxo-source layer="bubbles" grouping="size"></dxo-source>
</dxi-legend>
</dx-vector-map>
import { NgModule, Component, enableProdMode } from '@angular/core';
import { BrowserModule, BrowserTransferStateModule } 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 { FeatureCollection, 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;
markers: FeatureCollection;
constructor(service: Service) {
this.markers = service.getMarkers();
}
customizeText(arg) {
return ['< 8000K', '8000K to 10000K', '> 10000K'][arg.index];
}
customizeItems(items) {
return items.reverse();
}
customizeTooltip(arg) {
if (arg.layer.type === 'marker') {
return {
text: arg.attribute('tooltip'),
};
}
}
}
@NgModule({
imports: [
BrowserModule,
BrowserTransferStateModule,
DxVectorMapModule,
],
declarations: [AppComponent],
bootstrap: [AppComponent],
})
export class AppModule { }
platformBrowserDynamic().bootstrapModule(AppModule);
::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;
}
}
// 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.exports = window.exports || {};
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@4.2.4/lib/plugin.js',
'typescript': 'npm:typescript@4.2.4/lib/typescript.js',
'@angular/core': 'npm:@angular/core@12.2.17',
'@angular/platform-browser': 'npm:@angular/platform-browser@12.2.17',
'@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic@12.2.17',
'@angular/forms': 'npm:@angular/forms@12.2.17',
'@angular/common': 'npm:@angular/common@12.2.17',
'@angular/compiler': 'npm:@angular/compiler@12.2.17',
'tslib': 'npm:tslib@2.3.1/tslib.js',
'rxjs': 'npm:rxjs@7.5.3/dist/bundles/rxjs.umd.js',
'rxjs/operators': 'npm:rxjs@7.5.3/dist/cjs/operators/index.js',
'devextreme-dist/js/vectormap-data': 'npm:devextreme-dist@23.1.6/js/vectormap-data',
'rrule': 'npm:rrule@2.6.4/dist/es5/rrule.js',
'luxon': 'npm:luxon@1.28.1/build/global/luxon.min.js',
'es6-object-assign': 'npm:es6-object-assign@1.1.0',
'devextreme': 'npm:devextreme@23.1.6/cjs',
'devextreme/bundles/dx.all': 'npm:devextreme@23.1.6/bundles/dx.all.js',
'jszip': 'npm:jszip@3.7.1/dist/jszip.min.js',
'devextreme-quill': 'npm:devextreme-quill@1.6.2/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.2.2',
'devexpress-gantt': 'npm:devexpress-gantt@4.1.49',
'devextreme-angular': 'npm:devextreme-angular@23.1.6',
'@devextreme/runtime': 'npm:@devextreme/runtime@3.0.12',
'inferno': 'npm:inferno@7.4.11/dist/inferno.min.js',
'inferno-compat': 'npm:inferno-compat/dist/inferno-compat.min.js',
'inferno-create-element': 'npm:inferno-create-element@7.4.11/dist/inferno-create-element.min.js',
'inferno-dom': 'npm:inferno-dom/dist/inferno-dom.min.js',
'inferno-hydrate': 'npm:inferno-hydrate@7.4.11/dist/inferno-hydrate.min.js',
'inferno-clone-vnode': 'npm:inferno-clone-vnode/dist/inferno-clone-vnode.min.js',
'inferno-create-class': 'npm:inferno-create-class/dist/inferno-create-class.min.js',
'inferno-extras': 'npm:inferno-extras/dist/inferno-extras.min.js',
// Prettier
'prettier/standalone': 'npm:prettier@2.8.4/standalone.js',
'prettier/parser-html': 'npm:prettier@2.8.4/parser-html.js',
},
packages: {
'app': {
main: './app.component.ts',
defaultExtension: 'ts',
},
'devextreme': {
defaultExtension: 'js',
},
'devextreme/events/utils': {
main: 'index',
},
'devextreme/events': {
main: 'index',
},
'es6-object-assign': {
main: './index.js',
defaultExtension: 'js',
},
'rxjs': {
defaultExtension: 'js',
},
'rxjs/operators': {
defaultExtension: 'js',
},
},
packageConfigPaths: [
'npm:@devextreme/*/package.json',
'npm:@devextreme/runtime@3.0.12/inferno/package.json',
'npm:@angular/*/package.json',
'npm:@angular/common@12.2.17/*/package.json',
'npm:rxjs@7.5.3/package.json',
'npm:rxjs@7.5.3/operators/package.json',
'npm:devextreme-angular@23.1.6/*/package.json',
'npm:devextreme-angular@23.1.6/ui/*/package.json',
'npm:devextreme-angular@23.1.6/package.json',
'npm:devexpress-diagram@2.2.2/package.json',
'npm:devexpress-gantt@4.1.49/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" />
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<div class="demo-container">
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</div>
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