This section explains you the steps required to create a simple circular gauge and demonstrate the basic usage of circular gauge control.
You can use Angular CLI to setup your Angular applications.
To install Angular CLI use the following command.
npm install -g @angular/cliStart a new Angular application using below Angular CLI command.
ng new my-app
cd my-appSyncfusion packages are distributed in npm as @syncfusion scoped packages. You can get all the Angular Syncfusion package from npm link.
Currently, Syncfusion provides two types of package structures for Angular components,
Syncfusion Angular packages(>=20.2.36) has been moved to the Ivy distribution to support the Angular Ivy rendering engine and the package are compatible with Angular version 12 and above. To download the package use the below command.
Add @syncfusion/ej2-angular-circulargauge package to the application.
npm install @syncfusion/ej2-angular-circulargauge --saveFor Angular version below 12, you can use the legacy (ngcc) package of the Syncfusion Angular components. To download the ngcc package use the below.
Add @syncfusion/ej2-angular-circulargauge@ngcc package to the application.
npm install @syncfusion/ej2-angular-circulargauge@ngcc --saveTo mention the ngcc package in the package.json file, add the suffix -ngcc with the package version as below.
@syncfusion/ej2-angular-circulargauge:"20.2.38-ngcc"Note: If the ngcc tag is not specified while installing the package, the Ivy Library Package will be installed and this package will throw a warning.
Import Circular Gauge module into Angular application(app.module.ts) from the package @syncfusion/ej2-angular-circulargauge [src/app/app.module.ts].
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
// import the CircularGaugeModule for the Circular Gauge component
import { CircularGaugeModule } from '@syncfusion/ej2-angular-circulargauge';
import { AppComponent } from './app.component';
@NgModule({
//declaration of ChartModule into NgModule
imports: [ BrowserModule, CircularGaugeModule ],
declarations: [ AppComponent ],
bootstrap: [ AppComponent ]
})
export class AppModule { }app.component.ts file to render the ej2-angular-circulargauge component
[src/app/app.component.ts].import { Component, ViewEncapsulation } from '@angular/core';
@Component({
selector: 'app-container',
// specifies the template string for the Charts component
template: `<ejs-circulargauge id='circular-container'></ejs-circulargauge>`,
encapsulation: ViewEncapsulation.None
})
export class AppComponent { }Now use the app-container in the index.html instead of default one.
<app-container></app-container>npm startThe below example shows a basic Circular Gauge.
import { Component } from '@angular/core';
@Component({
selector: 'app-container',
// specifies the template string for the CircularGauge component
template: `<ejs-circulargauge id="circular-container"></ejs-circulargauge>`
})
export class AppComponent {
}import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { CircularGaugeModule } from '@syncfusion/ej2-angular-circulargauge';
import { GaugeTooltipService } from '@syncfusion/ej2-angular-circulargauge';
/**
* Module
*/
@NgModule({
imports: [
BrowserModule, CircularGaugeModule
],
declarations: [AppComponent],
bootstrap: [AppComponent],
providers: [ GaugeTooltipService ]
})
export class AppModule { }import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';
enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);Pointer value is used to indicate the gauge value using value property in pointers.
import { Component, OnInit } from '@angular/core';
@Component({
selector: 'app-container',
template:
`<ejs-circulargauge id="circular-container">
<e-axes>
<e-axis>
<e-pointers>
<e-pointer value=35></e-pointer>
</e-pointers>
</e-axis>
</e-axes>
</ejs-circulargauge>`
})
export class AppComponent implements OnInit {
ngOnInit(): void {
// Initialize objects.
}
}import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { CircularGaugeModule } from '@syncfusion/ej2-angular-circulargauge';
import { GaugeTooltipService } from '@syncfusion/ej2-angular-circulargauge';
/**
* Module
*/
@NgModule({
imports: [
BrowserModule, CircularGaugeModule
],
declarations: [AppComponent],
bootstrap: [AppComponent],
providers: [ GaugeTooltipService ]
})
export class AppModule { }import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';
enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);