Getting started with Angular Circular gauge component
11 Jul 20245 minutes to read
This section explains you the steps required to create a simple circular gauge and demonstrate the basic usage of circular gauge control.
Setup Angular Environment
You can use Angular CLI
to setup your Angular applications.
To install Angular CLI use the following command.
npm install -g @angular/cli
Create an Angular Application
Start a new Angular application using below Angular CLI command.
ng new my-app
cd my-app
Installing Syncfusion Circular Gauge package
Syncfusion 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,
- Ivy library distribution package format
- Angular compatibility compiler(Angular’s legacy compilation and rendering pipeline) package.
Ivy library distribution package
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 --save
Angular compatibility compiled package(ngcc)
For 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 --save
To 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.
Add Circular Gauge component
Modify the template in app.component.ts
file to render the ej2-angular-circulargauge
component [src/app/app.component.ts]
.
import { CircularGaugeModule } from '@syncfusion/ej2-angular-circulargauge'
import { GaugeTooltipService } from '@syncfusion/ej2-angular-circulargauge'
import { Component, ViewEncapsulation } from '@angular/core';
@Component({
imports: [
CircularGaugeModule
],
providers: [ GaugeTooltipService ],
standalone: true,
selector: 'app-root',
// 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>
- Now run the application in the browser using the below command.
npm start
The below example shows a basic Circular Gauge.
import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { CircularGaugeModule } from '@syncfusion/ej2-angular-circulargauge'
import { GaugeTooltipService } from '@syncfusion/ej2-angular-circulargauge'
import { Component } from '@angular/core';
@Component({
imports: [
CircularGaugeModule
],
providers: [ GaugeTooltipService ],
standalone: true,
selector: 'app-container',
// specifies the template string for the CircularGauge component
template: `<ejs-circulargauge id="circular-container"></ejs-circulargauge>`
})
export class AppComponent {
}
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));
Set Pointer Value
Pointer value is used to indicate the gauge value using value
property in pointers
.
import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { CircularGaugeModule } from '@syncfusion/ej2-angular-circulargauge'
import { GaugeTooltipService } from '@syncfusion/ej2-angular-circulargauge'
import { Component, OnInit } from '@angular/core';
@Component({
imports: [
CircularGaugeModule
],
providers: [ GaugeTooltipService ],
standalone: true,
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 { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));