<div>
<div class="long-title"><h3>Energy Production (GWh, 2016)</h3></div>
<div class="pies-container">
<dx-pie-chart *ngFor="let country of countries" class="pie"
sizeGroup="piesGroup"
[dataSource]="service.getData(country)"
[animation]="false"
resolveLabelOverlapping="shift"
type="doughnut"
centerTemplate="centerTemplate"
[innerRadius]="0.65">
<dxi-series
argumentField="commodity"
valueField="total">
<dxo-label
backgroundColor="none"
[visible]="true"
format="fixedPoint"
[customizeText]="customizeLabel"
>
<dxo-connector
[visible]="true"
></dxo-connector>
</dxo-label>
</dxi-series>
<dxo-legend [visible]="false">
</dxo-legend>
<svg *dxTemplate="let pieChart of 'centerTemplate'">
<circle cx="100" cy="100" [attr.r]="pieChart.getInnerRadius()-6" fill="#eee"></circle>
<image attr.href="{{getImagePath(country)}}" x="70" y="58" width="60" height="40" />
<text text-anchor="middle" style="font-size: 18px" x="100" y="120" fill="#494949">
<tspan x="100" >{{country}}</tspan>
<tspan x="100" dy="20px" style="font-weight: 600">{{
calculateTotal(pieChart)
}}</tspan>
</text>
</svg>
</dx-pie-chart>
</div>
</div>
import { NgModule, Component, enableProdMode } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { DxPieChartModule } from 'devextreme-angular';
import { DataItem, Service } from './app.service';
import { DecimalPipe } from '@angular/common';
if(!/localhost/.test(document.location.host)) {
enableProdMode();
}
@Component({
selector: 'demo-app',
templateUrl: 'app/app.component.html',
styleUrls: ['app/app.component.css'],
providers: [Service]
})
export class AppComponent {
service: Service;
countries: Iterable<string>;
pipe: any = new DecimalPipe("en-US");
constructor(service: Service) {
this.service = service;
this.countries = new Set(service.getData().map(item => item.country));
}
customizeLabel(e) {
return `${e.argumentText}\n${e.valueText}`;
}
calculateTotal(pieChart) {
const totalValue = pieChart.getAllSeries()[0].getVisiblePoints().reduce((s, p) => s + p.originalValue, 0);
return this.pipe.transform(totalValue, "1.0-0");
}
getImagePath(country) {
return `../../../../images/flags/${country.replace(/\s/, "").toLowerCase()}.svg`;
}
}
@NgModule({
imports: [
BrowserModule,
DxPieChartModule
],
declarations: [AppComponent],
bootstrap: [AppComponent]
})
export class AppModule { }
platformBrowserDynamic().bootstrapModule(AppModule);
::ng-deep .pies-container {
margin: auto;
width: 800px;
}
::ng-deep .pies-container > .pie {
width: 400px;
margin-top: -50px;
float: left;
}
::ng-deep .long-title h3 {
font-weight: 200;
font-size: 28px;
text-align: center;
margin-bottom: 20px;
}
import {
Injectable
} from '@angular/core';
export class DataItem {
country: string;
commodity: string;
total: number;
}
const data:DataItem[] = [
{ country: "France", commodity: "Nuclear", total: 403195 },
{ country: "Germany", commodity: "Nuclear", total: 84634 },
{ country: "France", commodity: "Thermal", total: 57471 },
{ country: "Germany", commodity: "Thermal", total: 419591 },
{ country: "France", commodity: "Wind", total: 21400 },
{ country: "Germany", commodity: "Wind", total: 78598 },
{ country: "France", commodity: "Solar", total: 8160 },
{ country: "Germany", commodity: "Solar", total: 38098 },
{ country: "France", commodity: "Tidal, Wave", total: 501 }
];
var cache = {}
@Injectable()
export class Service {
getData(country?: string): DataItem[] {
if (country) {
return cache[country] = cache[country] || data.filter(item => item.country === country);
}
return data;
}
}
// 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: "system",
emitDecoratorMetadata: true,
experimentalDecorators: true
},
meta: {
'typescript': {
"exports": "ts"
},
'devextreme/localization.js': {
"esModule": true
}
},
paths: {
'npm:': 'https://unpkg.com/'
},
map: {
'ts': 'npm:plugin-typescript@8.0.0/lib/plugin.js',
'typescript': 'npm:typescript@3.5.3/lib/typescript.js',
'@angular': 'npm:@angular',
'tslib': 'npm:tslib@2.0.3/tslib.js',
'rxjs': 'npm:rxjs@6.3.3',
'rrule': 'npm:rrule@2.6.6/dist/es5/rrule.js',
'luxon': 'npm:luxon@1.25.0/build/global/luxon.min.js',
'es6-object-assign': 'npm:es6-object-assign@1.1.0',
'devextreme': 'npm:devextreme@20.2.4',
'jszip': 'npm:jszip@3.5.0/dist/jszip.min.js',
'devextreme-quill': 'npm:devextreme-quill@0.9.7/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.0.5',
'devexpress-gantt': 'npm:devexpress-gantt@2.0.8',
'devextreme-angular': 'npm:devextreme-angular@20.2.4',
'preact': 'npm:preact@10.5.7/dist/preact.js',
'preact/hooks': 'npm:preact@10.5.7/hooks/dist/hooks.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'
}
},
packageConfigPaths: [
"npm:@angular/*/package.json",
"npm:@angular/common/*/package.json",
"npm:rxjs/package.json",
"npm:rxjs/operators/package.json",
"npm:devextreme-angular/*/package.json",
"npm:devextreme-angular/ui/*/package.json",
"npm:devextreme-angular/package.json",
"npm:devexpress-diagram/package.json",
"npm:devexpress-gantt/package.json",
]
});
<!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/20.2.4/css/dx.common.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.2.4/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@0.10.2/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="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>