Pie Markers
Documentation
This demo shows how to use markers of the «pie» type in the VectorMap. Values for pie markers are provided by the data field whose name is assigned to the dataField property.
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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"
name="pies"
elementType="pie"
dataField="values"
></dxi-layer>
<dxi-legend [customizeText]="customizeText">
<dxo-source layer="pies" 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 { 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;
names: string[];
constructor(service: Service) {
this.markers = service.getMarkers();
this.names = service.getNames();
this.customizeText = this.customizeText.bind(this);
}
customizeText(arg) {
return this.names[arg.index];
}
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;
}
::ng-deep .country {
font-size: 15px;
font-weight: 500;
}
import { Injectable } from '@angular/core';
export class FeatureCollection {
type: string;
features: Feature[];
}
export class Feature {
type: string;
properties: FeatureProperty;
geometry: FeatureGeometry;
}
export class FeatureProperty {
values: number[];
tooltip: string;
}
export class FeatureGeometry {
type: string;
coordinates: number[];
}
const names: string[] = ['Christian', 'Muslim', 'Unaffiliated', 'Buddhist', 'Jewish'];
const markers: FeatureCollection = {
type: 'FeatureCollection',
features: [{
coordinates: [34.6, -5.1],
values: [61.4, 35.2, 1.4, 0, 0],
country: 'Tanzania',
}, {
coordinates: [18.8, 15],
values: [40.6, 55.3, 2.5, 0, 0],
country: 'Chad',
}, {
coordinates: [7.36, 9.97],
values: [49.3, 48.8, 0.4, 0, 0],
country: 'Nigeria',
}, {
coordinates: [135.61, -24.57],
values: [67.3, 2.4, 24.2, 2.7, 0.5],
country: 'Australia',
}, {
coordinates: [103.3, 34.85],
values: [5.1, 1.8, 52.2, 18.2, 0],
country: 'China',
}, {
coordinates: [139.5, 37],
values: [1.6, 0.2, 57, 36.2, 0],
country: 'Japan',
}, {
coordinates: [100.8, 15.9],
values: [0.9, 5.5, 0.3, 93.2, 0],
country: 'Thailand',
}, {
coordinates: [10.4, 51.4],
values: [68.7, 5.8, 24.7, 0.3, 0.3],
country: 'Germany',
}, {
coordinates: [100.8, 65.3],
values: [73.3, 10, 16.2, 0.1, 0.2],
country: 'Russia',
}, {
coordinates: [-3.48, 40.36],
values: [78.6, 2.1, 19, 0, 0.1],
country: 'Spain',
}, {
coordinates: [-78.01, 21.72],
values: [59.2, 0, 23, 0, 0],
country: 'Cuba',
}, {
coordinates: [-63.7, -31.92],
values: [85.2, 1, 12.2, 0.05, 0.5],
country: 'Argentina',
}, {
coordinates: [-110.53, 60.78],
values: [69, 2.1, 23.7, 0.5, 0.3],
country: 'Canada',
}, {
coordinates: [-100.1, 40.14],
values: [78.3, 0.9, 16.4, 1.2, 1.8],
country: 'United States',
}, {
coordinates: [34.88, 31.16],
values: [2, 18.6, 3.1, 0.3, 75.6],
country: 'Israel',
}].map((data) => {
const list = [`<span class='country'>${data.country}</span>`, ' '];
data.values.forEach((value, i) => {
if (value > 0) {
list.push(`${names[i]}: ${value}%`);
}
});
return {
type: 'Feature',
geometry: {
type: 'Point',
coordinates: data.coordinates,
},
properties: {
tooltip: list.join('\n'),
values: data.values,
},
};
}),
};
@Injectable()
export class Service {
getMarkers(): FeatureCollection {
return markers;
}
getNames(): string[] {
return names;
}
}
// 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/
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typescriptOptions: {
module: 'system',
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experimentalDecorators: true,
},
meta: {
'typescript': {
'exports': 'ts',
},
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'esModule': true,
},
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},
},
paths: {
'npm:': 'https://unpkg.com/',
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'typescript': 'npm:typescript@3.5.3/lib/typescript.js',
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'tslib': 'npm:tslib@2.3.1/tslib.js',
'rxjs': 'npm:rxjs@6.4.0',
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'devexpress-gantt': 'npm:devexpress-gantt@4.0.3',
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'@devextreme/runtime': 'npm:@devextreme/runtime@2.3.14',
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},
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'app': {
main: './app.component.ts',
defaultExtension: 'ts',
},
'devextreme': {
defaultExtension: 'js',
},
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main: 'index',
},
'devextreme/events': {
main: 'index',
},
'es6-object-assign': {
main: './index.js',
defaultExtension: 'js',
},
},
packageConfigPaths: [
'npm:@devextreme/*/package.json',
'npm:@devextreme/runtime@2.3.14/inferno/package.json',
'npm:@angular/*/package.json',
'npm:@angular/common@12.2.15/*/package.json',
'npm:rxjs@6.4.0/package.json',
'npm:rxjs@6.4.0/operators/package.json',
'npm:devextreme-angular@21.2.5/*/package.json',
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'npm:devexpress-diagram@2.1.45/package.json',
'npm:devexpress-gantt@4.0.3/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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