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Print and Export in Angular Linear Gauge component

Print

To use the print functionality, we should inject the PrintService into the @NgModule.providers and set the allowPrint property to true. The rendered linear gauge can be printed directly from the browser by calling the method print.

Source
Preview
app.component.ts
app.module.ts
main.ts
import { Component, ViewChild } from '@angular/core';
import { PrintService, LinearGaugeComponent } from '@syncfusion/ej2-angular-lineargauge';
@Component({
    selector: 'app-container',
    template: `
    <ejs-lineargauge id="gauge-container" [allowPrint]=true #gauge>
    </ejs-lineargauge><div> <button  id='print' (click)='print()'>Print</button></div>`,
    providers: [PrintService]
})
export class AppComponent {
    @ViewChild('gauge')
    public gaugeObj: LinearGaugeComponent;
    ngOnInit(): void {
    public print(){
        this.gaugeObj.print();
      };
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { LinearGaugeModule } from '@syncfusion/ej2-angular-lineargauge';
import { GaugeTooltipService } from '@syncfusion/ej2-angular-lineargauge';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, LinearGaugeModule
    ],
    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);

Export

Image Export

To use the image export functionality, we should inject the ImageExportService into the @NgModule.providers and set the allowImageExport property to true. The rendered linear gauge can be exported as an image using the export method. The method requires two parameters: image type and file name. The gauge can be exported as an image in the following formats.

  • JPEG
  • PNG
  • SVG
Source
Preview
app.component.ts
app.module.ts
main.ts
import { Component, ViewChild } from '@angular/core';
import { ImageExportService, LinearGaugeComponent } from '@syncfusion/ej2-angular-lineargauge';
@Component({
    selector: 'app-container',
    template: `
    <ejs-lineargauge id="gauge-container" [allowImageExport]=true #gauge>
    </ejs-lineargauge><div><button  id='export' (click)='export()'>Export</button></div>`,
    providers: [ImageExportService]
})
export class AppComponent {
    @ViewChild('gauge')
    public gaugeObj: LinearGaugeComponent;
    ngOnInit(): void {
      public export(){
        this.gaugeObj.export('PNG', 'Gauge');
      };
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { LinearGaugeModule } from '@syncfusion/ej2-angular-lineargauge';
import { GaugeTooltipService } from '@syncfusion/ej2-angular-lineargauge';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, LinearGaugeModule
    ],
    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);

We can get the image file as base64 string for the JPEG and PNG formats. The linear gauge can be exported to image as a base64 string using the export method. There are four parameters required: image type, file name, orientation of the exported PDF document which must be set as null for image export and finally allowDownload which should be set as false to return base64 string.

Source
Preview
app.component.ts
app.module.ts
main.ts
import { Component, ViewChild } from '@angular/core';
import { ImageExportService, LinearGaugeComponent } from '@syncfusion/ej2-angular-lineargauge';
@Component({
    selector: 'app-container',
    template: `
    <ejs-lineargauge id="gauge-container" [allowImageExport]=true #gauge>
    </ejs-lineargauge><div> <button  id='export' (click)='export()'>Export</button></div>`,
    providers: [ImageExportService]
})
export class AppComponent {
    @ViewChild('gauge')
    public gaugeObj: LinearGaugeComponent;
    ngOnInit(): void {
      public export(){
        const promise = this.gaugeObj.export('PNG', 'Gauge', null, false);
        promise.then((data)=>{
            document.writeln(data);
          })
      }
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { LinearGaugeModule } from '@syncfusion/ej2-angular-lineargauge';
import { GaugeTooltipService } from '@syncfusion/ej2-angular-lineargauge';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, LinearGaugeModule
    ],
    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);

PDF Export

To use the PDF export functionality, we should inject the PdfExportService into the @NgModule.providers and set the allowPdfExport property to true. The rendered linear gauge can be exported as PDF using the export method. The export method requires three parameters: file type, file name and orientation of the PDF document. The orientation setting is optional and “0” indicates portrait and “1” indicates landscape.

Source
Preview
app.component.ts
app.module.ts
main.ts
import { Component, ViewChild } from '@angular/core';
import { PdfExportService, LinearGaugeComponent } from '@syncfusion/ej2-angular-lineargauge';
@Component({
    selector: 'app-container',
    template: `
    <ejs-lineargauge id="gauge-container" [allowPdfExport]=true #gauge>
    </ejs-lineargauge><div> <button  id='export' (click)='export()'>Export</button></div>`,
    providers: [PdfExportService]
})
export class AppComponent {
    @ViewChild('gauge')
    public gaugeObj: LinearGaugeComponent;
    ngOnInit(): void {
      public export(){
        this.gaugeObj.export('PDF', 'Gauge', 0);
      };
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { LinearGaugeModule } from '@syncfusion/ej2-angular-lineargauge';
import { GaugeTooltipService } from '@syncfusion/ej2-angular-lineargauge';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, LinearGaugeModule
    ],
    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);

Note: The exporting of the linear gauge as base64 string is not supported in the PDF export.

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