Angular Range Selector - Logarithmic Scale

In this demo, a logarithmic axis is used to select a range within a set of rapidly-growing values.

Backend API

import { bootstrapApplication } from '@angular/platform-browser'; import { Component, enableProdMode, provideZoneChangeDetection } from '@angular/core'; import { DxRangeSelectorModule } from 'devextreme-angular'; import { DxChartModule, DxChartTypes } from 'devextreme-angular/ui/chart'; if (!/localhost/.test(document.location.host)) { enableProdMode(); } @Component({ selector: 'demo-app', templateUrl: './app.component.html', styleUrls: ['./app.component.css'], imports: [ DxRangeSelectorModule, DxChartModule, ], }) export class AppComponent { dataSource: Record<string, unknown>[] = []; visualRange: DxChartTypes.ArgumentAxis['visualRange'] = {}; constructor() { const max = 100; for (let i = 0; i < max; i += 1) { this.dataSource.push({ arg: Math.pow(10, i * 0.1), val: Math.log(i + 1) / Math.log(0.5) + (Math.random() - 0.5) * (100 / (i + 1)) + 10, }); } } } bootstrapApplication(AppComponent, { providers: [ provideZoneChangeDetection({ eventCoalescing: true, runCoalescing: true }), ], });

::ng-deep #zoomed-chart { height: 335px; margin: 0 0 15px; } ::ng-deep #range-selector { height: 120px; }

<!DOCTYPE html> <html lang="en"> <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=5.0" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/26.1.5/css/dx.light.css" /> </head> <body class="dx-viewport"> <div class="demo-container"> <demo-app>Loading...</demo-app> </div> <script src="https://cdn.jsdelivr.net/npm/zone.js@0.16.2/bundles/zone.umd.js"></script> <script src="./bundle.js" type="module"></script> </body> </html>