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Charts

Logarithmic Axis

Documentation
In this demo, a logarithmic axis is used to visualize a set of rapidly-growing values.
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<dx-chart id="chart" [dataSource]="relativeMasses" title="Relative Masses of the Heaviest Solar System Objects" [customizePoint]="customizePoint"> <dxi-series type="scatter" valueField="mass" argumentField="name" tagField="type"> <dxo-point [size]="20"></dxo-point> </dxi-series> <dxo-common-pane-settings> <dxo-border [visible]="true"></dxo-border> </dxo-common-pane-settings> <dxo-common-axis-settings> <dxo-grid [visible]="true"></dxo-grid> </dxo-common-axis-settings> <dxo-argument-axis> <dxo-label> <dxo-overlapping-behavior mode="rotate" [rotationAngle]="20"> </dxo-overlapping-behavior> </dxo-label> </dxo-argument-axis> <dxi-value-axis type="logarithmic" title="Mass Relative to the Earth"> </dxi-value-axis> <dxo-tooltip [enabled]="true"></dxo-tooltip> <dxo-legend [visible]="false"></dxo-legend> <dxo-export [enabled]="true"></dxo-export> </dx-chart>
import { NgModule, Component } from '@angular/core'; import { BrowserModule } from '@angular/platform-browser'; import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; import { DxChartModule } from 'devextreme-angular'; import { Service, RelativeMass } from './app.service'; @Component({ selector: 'demo-app', providers: [Service], templateUrl: 'app/app.component.html', styleUrls: ['app/app.component.css'] }) export class AppComponent { relativeMasses: RelativeMass[]; constructor(service: Service) { this.relativeMasses = service.getRelativeMasses(); } customizePoint = (arg: any) => { var color, hoverStyle; switch (arg.tag) { case "Star": color = "red"; hoverStyle = { border: { color: "red" } }; break; case "Satellite": color = "gray"; hoverStyle = { border: { color: "gray" } }; } return { color: color, hoverStyle: hoverStyle }; } } @NgModule({ imports: [ BrowserModule, DxChartModule ], declarations: [AppComponent], bootstrap: [AppComponent] }) export class AppModule { } platformBrowserDynamic().bootstrapModule(AppModule);
/deep/ #chart { height: 440px; width: 100%; }
import { Injectable } from '@angular/core'; export class RelativeMass { name: string; mass: number; type: string; } let relativeMasses: RelativeMass[] = [{ name: "Sun", mass: 332837, type: 'Star' }, { name: "Jupiter", mass: 317.83, type: 'Planet' }, { name: "Saturn", mass: 95.159, type: 'Planet' }, { name: "Uranus", mass: 14.536, type: 'Planet' }, { name: "Neptune", mass: 17.147, type: 'Planet' }, { name: "Earth", mass: 1, type: 'Planet' }, { name: "Venus", mass: 0.815, type: "Planet" }, { name: "Mars", mass: 0.107, type: 'Planet' }, { name: "Mercury", mass: 0.0553, type: 'Planet' }, { name: "Moon", mass: 0.0123, type: 'Satellite' }, { name: "Europa (Jupiter's Moon)", mass: 0.00803, type: 'Satellite' }]; @Injectable() export class Service { getRelativeMasses(): RelativeMass[] { return relativeMasses; } }
// In real applications, you should not transpile code in the browser. You can see how to create your own application with Angular 2 and DevExtreme here: // https://github.com/DevExpress/devextreme-angular/blob/master/README.md System.config({ transpiler: 'ts', typescriptOptions: { module: "commonjs", emitDecoratorMetadata: true, experimentalDecorators: true }, meta: { 'typescript': { "exports": "ts" } }, paths: { 'npm:': 'https://unpkg.com/' }, map: { 'ts': 'npm:plugin-typescript@4.0.10/lib/plugin.js', 'typescript': 'npm:typescript@2.0.6/lib/typescript.js', '@angular/core': 'npm:@angular/core@2.4.3/bundles/core.umd.js', '@angular/common': 'npm:@angular/common@2.4.3/bundles/common.umd.js', '@angular/compiler': 'npm:@angular/compiler@2.4.3/bundles/compiler.umd.js', '@angular/platform-browser': 'npm:@angular/platform-browser@2.4.3/bundles/platform-browser.umd.js', '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic@2.4.3/bundles/platform-browser-dynamic.umd.js', '@angular/http': 'npm:@angular/http@2.4.3/bundles/http.umd.js', '@angular/router': 'npm:@angular/router@3.4.3/bundles/router.umd.js', '@angular/forms': 'npm:@angular/forms@2.4.3/bundles/forms.umd.js', 'rxjs': 'npm:rxjs@5.0.3', 'jszip': 'npm:jszip@3.1.3/dist/jszip.min.js', 'devextreme': 'npm:devextreme@16.2', 'jquery': 'npm:jquery@3.1.1/dist/jquery.min.js', 'devextreme-angular': 'npm:devextreme-angular@16.2' }, packages: { 'app': { main: './app.component.ts', defaultExtension: 'ts' }, 'devextreme': { defaultExtension: 'js' }, 'devextreme-angular': { main: 'index.js', defaultExtension: 'js' } } });
<!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/16.2.6/css/dx.spa.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/16.2.6/css/dx.common.css" /> <link rel="dx-theme" data-theme="generic.light" href="https://cdn3.devexpress.com/jslib/16.2.6/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@0.6.25/dist/zone.js"></script> <script src="https://unpkg.com/reflect-metadata@0.1.3/Reflect.js"></script> <script src="https://unpkg.com/systemjs@0.19.31/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>