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 option.
Feel free to share demo-related thoughts here.
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<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 } 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,
DxVectorMapModule
],
declarations: [AppComponent],
bootstrap: [AppComponent]
})
export class AppModule { }
platformBrowserDynamic().bootstrapModule(AppModule);
::ng-deep #vector-map {
height: 440px;
width: 100%;
display: block;
}
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[];
}
let 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(function (data) {
return {
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/
System.config({
transpiler: 'ts',
typescriptOptions: {
module: "commonjs",
emitDecoratorMetadata: true,
experimentalDecorators: true
},
meta: {
'typescript': {
"exports": "ts"
},
'devextreme/dist/js/vectormap-data/*': {
'esModule': true
}
},
paths: {
'npm:': 'https://unpkg.com/'
},
map: {
'ts': 'npm:plugin-typescript@8.0.0/lib/plugin.js',
'typescript': 'npm:typescript@3.4.5/lib/typescript.js',
'@angular/core': 'npm:@angular/core@8.0.0/bundles/core.umd.js',
'@angular/common': 'npm:@angular/common@8.0.0/bundles/common.umd.js',
'@angular/compiler': 'npm:@angular/compiler@8.0.0/bundles/compiler.umd.js',
'@angular/platform-browser': 'npm:@angular/platform-browser@8.0.0/bundles/platform-browser.umd.js',
'@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic@8.0.0/bundles/platform-browser-dynamic.umd.js',
'@angular/router': 'npm:@angular/router@8.0.0/bundles/router.umd.js',
'@angular/forms': 'npm:@angular/forms@8.0.0/bundles/forms.umd.js',
'@angular/common/http': 'npm:@angular/common@8.0.0/bundles/common-http.umd.js',
'tslib': 'npm:tslib/tslib.js',
'rxjs': 'npm:rxjs@6.3.3',
'rxjs/operators': 'npm:rxjs@6.3.3/operators',
'devextreme': 'npm:devextreme@19.1',
'devextreme/dist/js/vectormap-data': 'npm:devextreme@19.1/dist/js/vectormap-data',
'jszip': 'npm:jszip@3.1.3/dist/jszip.min.js',
'quill': 'npm:quill@1.3.7/dist/quill.js',
'devexpress-diagram': 'npm:devexpress-diagram',
'devextreme-angular': 'npm:devextreme-angular@19.1'
},
packages: {
'app': {
main: './app.component.ts',
defaultExtension: 'ts'
},
'devextreme': {
defaultExtension: 'js'
},
'rxjs': { main: 'index.js', defaultExtension: 'js' },
'rxjs/operators': { main: 'index.js', defaultExtension: 'js' },
'devextreme-angular': {
main: 'index.js',
defaultExtension: 'js'
}
}
});
<!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/19.1.7/css/dx.common.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/19.1.7/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@0.6.25/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://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<script>window.jQuery || document.write(decodeURIComponent('%3Cscript src="js/jquery.min.js"%3E%3C/script%3E'))</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>