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[];
}
let names: string[] = ["Christian", "Muslim", "Unaffiliated", "Buddhist", "Jewish"];
let 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(function (data) {
let list = ["<span class='country'>" + data.country + "</span>", " "];
data.values.forEach(function (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;
}
}
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