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Linear Gauge

Variable Number of Subvalue Indicators

Documentation
This demo shows how to use the API of the LinearGauge to change its value and subvalue indicators at runtime. To get and set values of the indicators, the value and subvalues methods are utilized.
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<div id="gauge-demo"> <dx-linear-gauge id="gauge" [value]="currentValue.primary" [subvalues]="currentValue.secondary"> <dxo-scale [startValue]="0" [endValue]="10" [tickInterval]="2"> <dxo-label [customizeText]="customizeText"></dxo-label> </dxo-scale> <dxo-tooltip [enabled]="true" [customizeTooltip]="customizeTooltip"></dxo-tooltip> <dxo-export [enabled]="true"></dxo-export> <dxo-title text="Power of Air Conditioners in Store Departments (kW)"> <dxo-font [size]="28"></dxo-font> </dxo-title> </dx-linear-gauge> <dx-select-box #select [dataSource]="powerInfo" displayExpr="name" [(value)]="currentValue" [width]="200"> </dx-select-box> </div>
import { NgModule, Component, enableProdMode } from '@angular/core'; import { BrowserModule } from '@angular/platform-browser'; import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; import { DxLinearGaugeModule, DxSelectBoxModule } from 'devextreme-angular' import { Service, PowerInfo } from './app.service' 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 { powerInfo: PowerInfo[]; currentValue: PowerInfo; constructor(service: Service) { this.powerInfo = service.getPowerInfo(); this.currentValue = this.powerInfo[0]; } customizeText(arg: any) { return arg.valueText + " kW"; } customizeTooltip() { var result = arg.valueText + " kW"; if (arg.index >= 0) { result = "Secondary " + (arg.index + 1) + ": " + result; } else { result = "Primary: " + result; } return { text: result }; } } @NgModule({ imports: [ BrowserModule, DxLinearGaugeModule, DxSelectBoxModule ], declarations: [AppComponent], bootstrap: [AppComponent] }) export class AppModule { } platformBrowserDynamic().bootstrapModule(AppModule);
/deep/ #gauge-demo { height: 440px; width: 100%; } /deep/ #gauge { height: 400px; }
import { Injectable } from '@angular/core'; export class PowerInfo { name: string; primary: number; secondary: number[]; } let powerInfo: PowerInfo[] = [{ name: 'Meat', primary: 8, secondary: [7, 3] }, { name: 'Fish', primary: 7, secondary: [7, 5, 1] }, { name: 'Grocery', primary: 5, secondary: [1, 3] }, { name: 'Greengrocery', primary: 3, secondary: [1] }, { name: 'Stationery', primary: 2, secondary: [] }]; @Injectable() export class Service { getPowerInfo(): PowerInfo[] { return powerInfo; } }
// 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://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@7.0.6/lib/plugin.js', 'typescript': 'npm:typescript@2.2.2/lib/typescript.js', '@angular/core': 'npm:@angular/core@4.1.0/bundles/core.umd.js', '@angular/common': 'npm:@angular/common@4.1.0/bundles/common.umd.js', '@angular/compiler': 'npm:@angular/compiler@4.1.0/bundles/compiler.umd.js', '@angular/platform-browser': 'npm:@angular/platform-browser@4.1.0/bundles/platform-browser.umd.js', '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic@4.1.0/bundles/platform-browser-dynamic.umd.js', '@angular/http': 'npm:@angular/http@4.1.0/bundles/http.umd.js', '@angular/router': 'npm:@angular/router@4.1.0/bundles/router.umd.js', '@angular/forms': 'npm:@angular/forms@4.1.0/bundles/forms.umd.js', 'rxjs': 'npm:rxjs@5.3.1', 'jszip': 'npm:jszip@3.1.3/dist/jszip.min.js', 'devextreme': 'npm:devextreme@17.1', 'jquery': 'npm:jquery@3.1.1/dist/jquery.min.js', 'devextreme-angular': 'npm:devextreme-angular@17.1' }, 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/17.1.6/css/dx.spa.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/17.1.6/css/dx.common.css" /> <link rel="dx-theme" data-theme="generic.light" href="https://cdn3.devexpress.com/jslib/17.1.6/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>