Demos
Chart(Angular)
Performance
WebGL
Scatter

ScatterGL (Angular)

The sample shows a scatter chart with large data which uses high performance WebGL rendering.

This example uses Angular.

import 'bootstrap.css'; import '@mescius/wijmo.styles/wijmo.css'; import './styles.css'; // import '@angular/compiler'; import { Component, enableProdMode, Inject, ɵresolveComponentResources } from '@angular/core'; import { FormsModule } from '@angular/forms'; import { BrowserModule, bootstrapApplication } from '@angular/platform-browser'; import { WjInputModule } from '@mescius/wijmo.angular2.input'; import { WjChartModule } from '@mescius/wijmo.angular2.chart'; import { WjChartInteractionModule } from '@mescius/wijmo.angular2.chart.interaction'; import { isIE } from '@mescius/wijmo'; import * as wjChart from '@mescius/wijmo.chart'; import { DataService } from './app.data'; import { WebGLRenderEngine } from '@mescius/wijmo.chart.webgl'; // // @Component({ standalone: true, providers: [DataService], imports: [BrowserModule, FormsModule, WjInputModule, WjChartModule, WjChartInteractionModule], selector: 'app-component', templateUrl: 'src/app.component.html' }) export class AppComponent { private _numberOfPoints: number = isIE() ? 10000 : 100000; private _numberOfSeries: number = 1; private _seriesSymbol: string = 'Dot'; symbolSize: number = 3; useWebGL: boolean = true; data: any[] = []; notIE: boolean = !isIE(); // private _chart: wjChart.FlexChart; private _webglEng = new WebGLRenderEngine(); private _svgEng = new wjChart.SvgRenderEngine(); // constructor(@Inject(DataService) private dataService: DataService) {} // get numberOfPoints(): number { return this._numberOfPoints; } set numberOfPoints(value: number) { this._numberOfPoints = value; this.updateData(); } // get numberOfSeries(): number { return this._numberOfSeries; } set numberOfSeries(value: number) { this._numberOfSeries = value; this.updateData(); } // get seriesSymbol(): string { return this._seriesSymbol; } set seriesSymbol(value: string) { this._seriesSymbol = value; } // get renderEngine(): wjChart.IRenderEngine { return this.useWebGL ? this._webglEng : this._svgEng; } // chartInitialized(chart: wjChart.FlexChart) { this._chart = chart; this.updateData(); } // updateData() { if (this._chart) { const data = []; const nser = this.numberOfSeries; const npts = this.numberOfPoints; for (let i = 0; i < nser; i++) { data.push(this.dataService.getData(Math.random() - 0.5, Math.random() - 0.5, npts / nser, 0.5 * (1 - i / nser))); } this.data = data; } } } // // enableProdMode(); // Resolve resources (templateUrl, styleUrls etc), After resolution all URLs have been converted into `template` strings. ɵresolveComponentResources(fetch).then(() => { // Bootstrap application bootstrapApplication(AppComponent).catch(err => console.error(err)); });
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>WebGL</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- Polyfills --> <script src="node_modules/core-js/client/shim.min.js"></script> <script src="node_modules/zone.js/fesm2015/zone.min.js"></script> <!-- SystemJS --> <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.21.5/system.src.js" integrity="sha512-skZbMyvYdNoZfLmiGn5ii6KmklM82rYX2uWctBhzaXPxJgiv4XBwJnFGr5k8s+6tE1pcR1nuTKghozJHyzMcoA==" crossorigin="anonymous"></script> <script src="systemjs.config.js"></script> <script> // workaround to load 'rxjs/operators' from the rxjs bundle System.import('rxjs').then(function (m) { System.set(SystemJS.resolveSync('rxjs/operators'), System.newModule(m.operators)); System.import('./src/app.component'); }); </script> </head> <body> <app-component></app-component> </body> </html>
<div class='container-fluid'> <div class="row"> <div class="col-sm-12"> <wj-menu header="NumPoints" [(value)]="numberOfPoints"> <wj-menu-item [value]="1000">1K</wj-menu-item> <wj-menu-item [value]="10000">10K</wj-menu-item> <wj-menu-item [value]="100000">100K</wj-menu-item> <wj-menu-item *ngIf="notIE" [value]="200000">200K</wj-menu-item> <wj-menu-item *ngIf="notIE" [value]="500000">500K</wj-menu-item> </wj-menu> <wj-menu header="NumSeries" [(value)]="numberOfSeries"> <wj-menu-item [value]="1">1</wj-menu-item> <wj-menu-item [value]="2">2</wj-menu-item> <wj-menu-item [value]="4">4</wj-menu-item> <wj-menu-item [value]="8">8</wj-menu-item> </wj-menu> <wj-menu header="Symbol" [(value)]="seriesSymbol"> <wj-menu-item [value]="'Dot'">Dot</wj-menu-item> <wj-menu-item [value]="'Box'">Box</wj-menu-item> </wj-menu> <wj-menu header="Size" [(value)]="symbolSize"> <wj-menu-item [value]="3">3</wj-menu-item> <wj-menu-item [value]="5">5</wj-menu-item> <wj-menu-item [value]="10">10</wj-menu-item> <wj-menu-item [value]="20">20</wj-menu-item> <wj-menu-item [value]="50">50</wj-menu-item> </wj-menu> <label> Use WebGL <input id="webgl" type="checkbox" [(ngModel)]="useWebGL" /> </label> </div> </div> <div class="row"> <div class="col-sm-12"> <wj-flex-chart #chart [renderEngine]="renderEngine" chartType="Scatter" bindingX="x" binding="y" [symbolSize]="symbolSize" (initialized)="chartInitialized(chart)" > <wj-flex-chart-axis wjProperty="axisX" [min]="-2" [max]="2"></wj-flex-chart-axis> <wj-flex-chart-axis wjProperty="axisY" [min]="-2" [max]="2" [axisLine]="true" [majorGrid]="false"></wj-flex-chart-axis> <wj-flex-chart-gestures #gestures interactiveAxes="XY" mouseAction="Zoom" [scaleY]="1" [posY]="0.5" [scaleX]="1" [posX]="0.5"></wj-flex-chart-gestures> <wj-flex-chart-series *ngFor="let series of data; let i = index" [itemsSource]="series" [name]="'ser ' + (i + 1)" [symbolStyle] = "{strokeWidth: 0}" [symbolMarker]="seriesSymbol"></wj-flex-chart-series> </wj-flex-chart> </div> </div> <div class="row"> <div class="col-sm-12"> <button id="btnNew" (click)="updateData()">Refresh Data</button> <button id="btnReset" (click)="gestures.reset()">Reset Zoom</button> </div> </div> </div>
import { Injectable } from '@angular/core'; // @Injectable() export class DataService { getData(cx: number, cy: number, n: number, maxr: number) { let data = new Array(n); let r0 = 0.1 + maxr; for (let i = 0; i < data.length; i++) { let a = 2 * Math.PI * Math.random(); let r = r0 * Math.sqrt(-2 * Math.log(Math.random())); data[i] = { x: cx + r * Math.cos(a), y: cy + r * Math.sin(a) }; } return data; } }
.wj-flexchart { width: 600px; height: 500px; margin: 0; }
(function (global) { SystemJS.config({ transpiler: './plugin-typescript.js', typescriptOptions: { "target": "ES2022", "module": "system", "emitDecoratorMetadata": true, "experimentalDecorators": true, }, baseURL: 'node_modules/', meta: { 'typescript': { "exports": "ts" }, '*.css': { loader: 'systemjs-plugin-css' } }, paths: { // paths serve as alias 'npm:': '' }, packageConfigPaths: [ '/node_modules/*/package.json', "/node_modules/@angular/*/package.json", "/node_modules/@mescius/*/package.json" ], map: { 'core-js': 'https://cdn.jsdelivr.net/npm/core-js@2.6.12/client/shim.min.js', 'typescript': 'https://cdnjs.cloudflare.com/ajax/libs/typescript/5.2.2/typescript.min.js', "rxjs": "https://cdnjs.cloudflare.com/ajax/libs/rxjs/7.8.1/rxjs.umd.min.js", 'systemjs-plugin-css': 'https://cdn.jsdelivr.net/npm/systemjs-plugin-css@0.1.37/css.js', '@mescius/wijmo': 'npm:@mescius/wijmo/index.js', '@mescius/wijmo.input': 'npm:@mescius/wijmo.input/index.js', '@mescius/wijmo.styles': 'npm:@mescius/wijmo.styles', '@mescius/wijmo.cultures': 'npm:@mescius/wijmo.cultures', '@mescius/wijmo.chart': 'npm:@mescius/wijmo.chart/index.js', '@mescius/wijmo.chart.analytics': 'npm:@mescius/wijmo.chart.analytics/index.js', '@mescius/wijmo.chart.animation': 'npm:@mescius/wijmo.chart.animation/index.js', '@mescius/wijmo.chart.annotation': 'npm:@mescius/wijmo.chart.annotation/index.js', '@mescius/wijmo.chart.finance': 'npm:@mescius/wijmo.chart.finance/index.js', '@mescius/wijmo.chart.finance.analytics': 'npm:@mescius/wijmo.chart.finance.analytics/index.js', '@mescius/wijmo.chart.hierarchical': 'npm:@mescius/wijmo.chart.hierarchical/index.js', '@mescius/wijmo.chart.interaction': 'npm:@mescius/wijmo.chart.interaction/index.js', '@mescius/wijmo.chart.radar': 'npm:@mescius/wijmo.chart.radar/index.js', '@mescius/wijmo.chart.render': 'npm:@mescius/wijmo.chart.render/index.js', '@mescius/wijmo.chart.webgl': 'npm:@mescius/wijmo.chart.webgl/index.js', '@mescius/wijmo.chart.map': 'npm:@mescius/wijmo.chart.map/index.js', '@mescius/wijmo.gauge': 'npm:@mescius/wijmo.gauge/index.js', '@mescius/wijmo.grid': 'npm:@mescius/wijmo.grid/index.js', '@mescius/wijmo.grid.detail': 'npm:@mescius/wijmo.grid.detail/index.js', '@mescius/wijmo.grid.filter': 'npm:@mescius/wijmo.grid.filter/index.js', '@mescius/wijmo.grid.search': 'npm:@mescius/wijmo.grid.search/index.js', '@mescius/wijmo.grid.style': 'npm:@mescius/wijmo.grid.style/index.js', '@mescius/wijmo.grid.grouppanel': 'npm:@mescius/wijmo.grid.grouppanel/index.js', '@mescius/wijmo.grid.multirow': 'npm:@mescius/wijmo.grid.multirow/index.js', '@mescius/wijmo.grid.transposed': 'npm:@mescius/wijmo.grid.transposed/index.js', '@mescius/wijmo.grid.transposedmultirow': 'npm:@mescius/wijmo.grid.transposedmultirow/index.js', '@mescius/wijmo.grid.pdf': 'npm:@mescius/wijmo.grid.pdf/index.js', '@mescius/wijmo.grid.sheet': 'npm:@mescius/wijmo.grid.sheet/index.js', '@mescius/wijmo.grid.xlsx': 'npm:@mescius/wijmo.grid.xlsx/index.js', '@mescius/wijmo.grid.selector': 'npm:@mescius/wijmo.grid.selector/index.js', '@mescius/wijmo.grid.cellmaker': 'npm:@mescius/wijmo.grid.cellmaker/index.js', '@mescius/wijmo.nav': 'npm:@mescius/wijmo.nav/index.js', '@mescius/wijmo.odata': 'npm:@mescius/wijmo.odata/index.js', '@mescius/wijmo.olap': 'npm:@mescius/wijmo.olap/index.js', '@mescius/wijmo.rest': 'npm:@mescius/wijmo.rest/index.js', '@mescius/wijmo.pdf': 'npm:@mescius/wijmo.pdf/index.js', '@mescius/wijmo.pdf.security': 'npm:@mescius/wijmo.pdf.security/index.js', '@mescius/wijmo.viewer': 'npm:@mescius/wijmo.viewer/index.js', '@mescius/wijmo.xlsx': 'npm:@mescius/wijmo.xlsx/index.js', '@mescius/wijmo.undo': 'npm:@mescius/wijmo.undo/index.js', '@mescius/wijmo.interop.grid': 'npm:@mescius/wijmo.interop.grid/index.js', '@mescius/wijmo.touch': 'npm:@mescius/wijmo.touch/index.js', '@mescius/wijmo.cloud': 'npm:@mescius/wijmo.cloud/index.js', '@mescius/wijmo.barcode': 'npm:@mescius/wijmo.barcode/index.js', '@mescius/wijmo.barcode.common': 'npm:@mescius/wijmo.barcode.common/index.js', '@mescius/wijmo.barcode.composite': 'npm:@mescius/wijmo.barcode.composite/index.js', '@mescius/wijmo.barcode.specialized': 'npm:@mescius/wijmo.barcode.specialized/index.js', "@mescius/wijmo.angular2.chart.analytics": "npm:@mescius/wijmo.angular2.chart.analytics/index.js", "@mescius/wijmo.angular2.chart.animation": "npm:@mescius/wijmo.angular2.chart.animation/index.js", "@mescius/wijmo.angular2.chart.annotation": "npm:@mescius/wijmo.angular2.chart.annotation/index.js", "@mescius/wijmo.angular2.chart.finance.analytics": "npm:@mescius/wijmo.angular2.chart.finance.analytics/index.js", "@mescius/wijmo.angular2.chart.finance": "npm:@mescius/wijmo.angular2.chart.finance/index.js", "@mescius/wijmo.angular2.chart.hierarchical": "npm:@mescius/wijmo.angular2.chart.hierarchical/index.js", "@mescius/wijmo.angular2.chart.interaction": "npm:@mescius/wijmo.angular2.chart.interaction/index.js", "@mescius/wijmo.angular2.chart.radar": "npm:@mescius/wijmo.angular2.chart.radar/index.js", '@mescius/wijmo.angular2.chart.map': 'npm:@mescius/wijmo.angular2.chart.map/index.js', "@mescius/wijmo.angular2.chart": "npm:@mescius/wijmo.angular2.chart/index.js", "@mescius/wijmo.angular2.core": "npm:@mescius/wijmo.angular2.core/index.js", "@mescius/wijmo.angular2.gauge": "npm:@mescius/wijmo.angular2.gauge/index.js", "@mescius/wijmo.angular2.grid.detail": "npm:@mescius/wijmo.angular2.grid.detail/index.js", "@mescius/wijmo.angular2.grid.filter": "npm:@mescius/wijmo.angular2.grid.filter/index.js", "@mescius/wijmo.angular2.grid.grouppanel": "npm:@mescius/wijmo.angular2.grid.grouppanel/index.js", "@mescius/wijmo.angular2.grid.search": "npm:@mescius/wijmo.angular2.grid.search/index.js", "@mescius/wijmo.angular2.grid.multirow": "npm:@mescius/wijmo.angular2.grid.multirow/index.js", "@mescius/wijmo.angular2.grid.sheet": "npm:@mescius/wijmo.angular2.grid.sheet/index.js", '@mescius/wijmo.angular2.grid.transposed': 'npm:@mescius/wijmo.angular2.grid.transposed/index.js', '@mescius/wijmo.angular2.grid.transposedmultirow': 'npm:@mescius/wijmo.angular2.grid.transposedmultirow/index.js', "@mescius/wijmo.angular2.grid": "npm:@mescius/wijmo.angular2.grid/index.js", "@mescius/wijmo.angular2.input": "npm:@mescius/wijmo.angular2.input/index.js", "@mescius/wijmo.angular2.olap": "npm:@mescius/wijmo.angular2.olap/index.js", "@mescius/wijmo.angular2.viewer": "npm:@mescius/wijmo.angular2.viewer/index.js", "@mescius/wijmo.angular2.nav": "npm:@mescius/wijmo.angular2.nav/index.js", "@mescius/wijmo.angular2.directivebase": "npm:@mescius/wijmo.angular2.directivebase/index.js", '@mescius/wijmo.angular2.barcode.common': 'npm:@mescius/wijmo.angular2.barcode.common/index.js', '@mescius/wijmo.angular2.barcode.composite': 'npm:@mescius/wijmo.angular2.barcode.composite/index.js', '@mescius/wijmo.angular2.barcode.specialized': 'npm:@mescius/wijmo.angular2.barcode.specialized/index.js', 'bootstrap.css': 'npm:bootstrap/dist/css/bootstrap.min.css', 'jszip': 'https://cdnjs.cloudflare.com/ajax/libs/jszip/3.10.1/jszip.min.js', "@angular/common/http": "https://cdn.jsdelivr.net/npm/@angular/common@16.2.6/fesm2022/http.mjs", "@angular/core": "https://cdn.jsdelivr.net/npm/@angular/core@16.2.6/fesm2022/core.mjs", "@angular/platform-browser": "https://cdn.jsdelivr.net/npm/@angular/platform-browser@16.2.6/fesm2022/platform-browser.mjs", "@angular/common": "https://cdn.jsdelivr.net/npm/@angular/common@16.2.6/fesm2022/common.mjs", "@angular/compiler": "https://cdn.jsdelivr.net/npm/@angular/compiler@16.2.6/fesm2022/compiler.mjs", "@angular/forms": "https://cdn.jsdelivr.net/npm/@angular/forms@16.2.6/fesm2022/forms.mjs", "@angular/localize": "https://cdn.jsdelivr.net/npm/@angular/localize@16.2.6/fesm2022/localize.mjs", "@angular/platform-browser-dynamic": "https://cdn.jsdelivr.net/npm/@angular/platform-browser-dynamic@16.2.6/fesm2022/platform-browser-dynamic.mjs", }, // packages tells the System loader how to load when no filename and/or no extension packages: { "./src": { defaultExtension: 'ts' }, "node_modules": { defaultExtension: 'js' }, wijmo: { defaultExtension: 'js', } } }); })(this);