Demos
PDF(Angular)
Drawing graphics

Drawing graphics (Angular)

This sample shows how to draw graphics on a page. Click the 'Export' button to view the exported PDF document.

Learn about Wijmo | Drawing Graphics Documentation | PdfDocument API Reference

This example uses Angular.

JavaScript
Angular
Vue
React
app.component.ts
index.html
app.component.html
styles.css
Copy to CodeMine
import 'bootstrap.css';
import './styles.css';
//
import * as wijmo from '@mescius/wijmo';
import * as pdf from '@mescius/wijmo.pdf';
//

import '@angular/compiler';
import { Component, enableProdMode, ɵresolveComponentResources } from '@angular/core';

import { BrowserModule, bootstrapApplication } from '@angular/platform-browser';
//
@Component({
  standalone: true,
  imports: [BrowserModule],
  selector: 'app-component',
  templateUrl: 'src/app.component.html',
})
export class AppComponent {
  private readonly A = 100; // sample area's size.
  private readonly C1 = new wijmo.Color('#3173c0');
  private readonly C2 = new wijmo.Color('#e69500');
  //
  export() {
    let doc = new pdf.PdfDocument({
      header: {
        height: 0,
      },
      footer: {
        height: 0,
      },
      ended: (sender: pdf.PdfDocument, args: pdf.PdfDocumentEndedEventArgs) => pdf.saveBlob(args.blob, 'Document.pdf'),
    });
    //
    this.sample1(doc);
    this.sample2(doc);
    this.sample3(doc);
    this.sample4(doc);
    this.sample5(doc);
    //
    doc.end();
  }
  //
  private sample1(doc: pdf.PdfDocument) {
    doc.drawText('Draw a series of lines with different styles: ');
    //
    let y = doc.y + doc.lineHeight();
    //
    // default document's pen (black color)
    doc.paths.moveTo(0, y).lineTo(this.A, y).stroke();
    //
    // color
    doc.paths
      .moveTo(0, y + 20)
      .lineTo(this.A, y + 20)
      .stroke(this.C1);
    //
    // color, line width = 3
    doc.paths
      .moveTo(0, y + 40)
      .lineTo(this.A, y + 40)
      .stroke(new pdf.PdfPen(this.C1, 3));
    //
    // opacity color, line width = 3
    doc.paths
      .moveTo(0, y + 60)
      .lineTo(this.A, y + 60)
      .stroke(new pdf.PdfPen(wijmo.Color.fromRgba(this.C1.r, this.C1.g, this.C1.b, 0.2), 3));
    //
    // color, dash pattern, line width = 3
    doc.paths
      .moveTo(0, y + 80)
      .lineTo(this.A, y + 80)
      .stroke(new pdf.PdfPen(this.C1, 3, new pdf.PdfDashPattern(5)));
    //
    doc.y = y + this.A + doc.lineHeight();
  }
  //
  private sample2(doc: pdf.PdfDocument) {
    doc.drawText('Draw a rectangle covered with a filled curved path:');
    //
    let y = doc.y + doc.lineHeight();
    //
    doc.paths.rect(0, y, this.A, this.A).stroke(this.C1);
    //
    doc.paths
      .moveTo(0, y)
      .bezierCurveTo(this.A / 2, y, this.A / 2, this.A + y, this.A, this.A + y)
      .lineTo(0, this.A + y)
      .lineTo(0, y)
      .fill(this.C2);
    //
    doc.y = y + this.A + doc.lineHeight();
  }
  //
  private sample3(doc: pdf.PdfDocument) {
    doc.drawText(
      'Draw a rectangle, inscribe a circle into it, fill the circle with an opaque color and stroke it using a dashed line:',
    );
    //
    let y = doc.y + doc.lineHeight();
    //
    doc.paths.rect(0, y, this.A, this.A).fill(this.C1);
    //
    doc.paths
      .circle(this.A / 2, y + this.A / 2, this.A / 2)
      .fillAndStroke(
        wijmo.Color.fromRgba(this.C2.r, this.C2.g, this.C2.b, 0.3),
        new pdf.PdfPen(this.C2, 2, new pdf.PdfDashPattern(5)),
      );
    //
    doc.y = y + this.A + doc.lineHeight();
  }
  //
  private sample4(doc: pdf.PdfDocument) {
    doc.drawText('Draw a simple pattern clipped by a circular clipping path:');
    //
    let y = doc.y + doc.lineHeight(),
      a0 = 10;
    //
    doc.saveState();
    //
    // clipping path
    doc.paths.circle(this.A / 2, y + this.A / 2, this.A / 2).clip();
    //
    // draw pattern
    for (let i = 0; i < 10; i++) {
      doc.paths.rect(0, y + i * a0, this.A, a0).fill(i % 2 ? this.C1 : this.C2);
    }
    //
    doc.restoreState();
    //
    doc.y = y + this.A + doc.lineHeight();
  }
  //
  private sample5(doc: pdf.PdfDocument) {
    doc.drawText('Draw a series of rectangles and rotate every rectangle by 15 degrees to the previous:');
    //
    let y = doc.y + doc.lineHeight(),
      a = this.A,
      sqrt2 = Math.sqrt(2),
      degrees = 15,
      samples = 90 / degrees;
    //
    doc.saveState();
    //
    for (let i = 0; i < samples; i++) {
      doc
        .rotate(degrees, new wijmo.Point(a / 2, y + a / 2))
        .paths// draw rectangle as if it is inscribed into a circle with the radius of a/ 2
        .rect((a - a / sqrt2) / 2, y + (a - a / sqrt2) / 2, a / sqrt2, a / sqrt2)
        .fill(wijmo.Color.interpolate(this.C1, this.C2, i * (1 / (samples - 1))));
    }
    //
    doc.restoreState();
    //
    doc.y = y + a + doc.lineHeight();
  }
}
//

//
enableProdMode();

// Resolve resources (templateUrl, styleUrls etc), After resolution all URLs have been converted into `template` strings.
ɵresolveComponentResources(fetch).then(() => {
  // Bootstrap application
  bootstrapApplication(AppComponent).catch((err) => console.error(err));
});
import 'bootstrap.css'; import './styles.css'; // import * as wijmo from '@mescius/wijmo'; import * as pdf from '@mescius/wijmo.pdf'; // import '@angular/compiler'; import { Component, enableProdMode, ɵresolveComponentResources } from '@angular/core'; import { BrowserModule, bootstrapApplication } from '@angular/platform-browser'; // @Component({ standalone: true, imports: [BrowserModule], selector: 'app-component', templateUrl: 'src/app.component.html', }) export class AppComponent { private readonly A = 100; // sample area's size. private readonly C1 = new wijmo.Color('#3173c0'); private readonly C2 = new wijmo.Color('#e69500'); // export() { let doc = new pdf.PdfDocument({ header: { height: 0, }, footer: { height: 0, }, ended: (sender: pdf.PdfDocument, args: pdf.PdfDocumentEndedEventArgs) => pdf.saveBlob(args.blob, 'Document.pdf'), }); // this.sample1(doc); this.sample2(doc); this.sample3(doc); this.sample4(doc); this.sample5(doc); // doc.end(); } // private sample1(doc: pdf.PdfDocument) { doc.drawText('Draw a series of lines with different styles: '); // let y = doc.y + doc.lineHeight(); // // default document's pen (black color) doc.paths.moveTo(0, y).lineTo(this.A, y).stroke(); // // color doc.paths .moveTo(0, y + 20) .lineTo(this.A, y + 20) .stroke(this.C1); // // color, line width = 3 doc.paths .moveTo(0, y + 40) .lineTo(this.A, y + 40) .stroke(new pdf.PdfPen(this.C1, 3)); // // opacity color, line width = 3 doc.paths .moveTo(0, y + 60) .lineTo(this.A, y + 60) .stroke(new pdf.PdfPen(wijmo.Color.fromRgba(this.C1.r, this.C1.g, this.C1.b, 0.2), 3)); // // color, dash pattern, line width = 3 doc.paths .moveTo(0, y + 80) .lineTo(this.A, y + 80) .stroke(new pdf.PdfPen(this.C1, 3, new pdf.PdfDashPattern(5))); // doc.y = y + this.A + doc.lineHeight(); } // private sample2(doc: pdf.PdfDocument) { doc.drawText('Draw a rectangle covered with a filled curved path:'); // let y = doc.y + doc.lineHeight(); // doc.paths.rect(0, y, this.A, this.A).stroke(this.C1); // doc.paths .moveTo(0, y) .bezierCurveTo(this.A / 2, y, this.A / 2, this.A + y, this.A, this.A + y) .lineTo(0, this.A + y) .lineTo(0, y) .fill(this.C2); // doc.y = y + this.A + doc.lineHeight(); } // private sample3(doc: pdf.PdfDocument) { doc.drawText( 'Draw a rectangle, inscribe a circle into it, fill the circle with an opaque color and stroke it using a dashed line:', ); // let y = doc.y + doc.lineHeight(); // doc.paths.rect(0, y, this.A, this.A).fill(this.C1); // doc.paths .circle(this.A / 2, y + this.A / 2, this.A / 2) .fillAndStroke( wijmo.Color.fromRgba(this.C2.r, this.C2.g, this.C2.b, 0.3), new pdf.PdfPen(this.C2, 2, new pdf.PdfDashPattern(5)), ); // doc.y = y + this.A + doc.lineHeight(); } // private sample4(doc: pdf.PdfDocument) { doc.drawText('Draw a simple pattern clipped by a circular clipping path:'); // let y = doc.y + doc.lineHeight(), a0 = 10; // doc.saveState(); // // clipping path doc.paths.circle(this.A / 2, y + this.A / 2, this.A / 2).clip(); // // draw pattern for (let i = 0; i < 10; i++) { doc.paths.rect(0, y + i * a0, this.A, a0).fill(i % 2 ? this.C1 : this.C2); } // doc.restoreState(); // doc.y = y + this.A + doc.lineHeight(); } // private sample5(doc: pdf.PdfDocument) { doc.drawText('Draw a series of rectangles and rotate every rectangle by 15 degrees to the previous:'); // let y = doc.y + doc.lineHeight(), a = this.A, sqrt2 = Math.sqrt(2), degrees = 15, samples = 90 / degrees; // doc.saveState(); // for (let i = 0; i < samples; i++) { doc .rotate(degrees, new wijmo.Point(a / 2, y + a / 2)) .paths// draw rectangle as if it is inscribed into a circle with the radius of a/ 2 .rect((a - a / sqrt2) / 2, y + (a - a / sqrt2) / 2, a / sqrt2, a / sqrt2) .fill(wijmo.Color.interpolate(this.C1, this.C2, i * (1 / (samples - 1)))); } // doc.restoreState(); // doc.y = y + a + doc.lineHeight(); } } // // enableProdMode(); // Resolve resources (templateUrl, styleUrls etc), After resolution all URLs have been converted into `template` strings. ɵresolveComponentResources(fetch).then(() => { // Bootstrap application bootstrapApplication(AppComponent).catch((err) => console.error(err)); });
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>Drawing Graphics</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- Polyfills --> <script src="node_modules/core-js/client/shim.min.js"></script> <script src="node_modules/zone.js/fesm2015/zone.min.js"></script> <!-- SystemJS --> <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.21.5/system.src.js" integrity="sha512-skZbMyvYdNoZfLmiGn5ii6KmklM82rYX2uWctBhzaXPxJgiv4XBwJnFGr5k8s+6tE1pcR1nuTKghozJHyzMcoA==" crossorigin="anonymous"></script> <script src="systemjs.config.js"></script> <script> // workaround to load 'rxjs/operators' from the rxjs bundle System.import('rxjs').then(function (m) { System.set(SystemJS.resolveSync('rxjs/operators'), System.newModule(m.operators)); System.import('./src/app.component'); }); </script> </head> <body> <app-component></app-component> </body> </html>
<div class="container-fluid"> <!-- Export button --> <button class="btn btn-default" (click)="export()">Export</button> </div>
body { margin-bottom: 24px; }
(function (global) { SystemJS.config({ transpiler: './plugin-typescript.js', typescriptOptions: { "target": "ES2022", "module": "system", "emitDecoratorMetadata": true, "experimentalDecorators": true, }, baseURL: 'node_modules/', meta: { 'typescript': { "exports": "ts" }, '*.css': { loader: 'systemjs-plugin-css' }, '*.mjs': { format: 'esm' }, }, paths: { // paths serve as alias 'npm:': '' }, packageConfigPaths: [ '/node_modules/*/package.json', "/node_modules/@angular/*/package.json", "/node_modules/@mescius/*/package.json" ], map: { 'core-js': 'https://cdn.jsdelivr.net/npm/core-js@2.6.12/client/shim.min.js', 'typescript': 'https://cdnjs.cloudflare.com/ajax/libs/typescript/5.2.2/typescript.min.js', "rxjs": "https://cdnjs.cloudflare.com/ajax/libs/rxjs/7.8.1/rxjs.umd.min.js", 'systemjs-plugin-css': 'https://cdn.jsdelivr.net/npm/systemjs-plugin-css@0.1.37/css.js', '@mescius/wijmo': 'npm:@mescius/wijmo/index.js', '@mescius/wijmo.input': 'npm:@mescius/wijmo.input/index.js', '@mescius/wijmo.styles': 'npm:@mescius/wijmo.styles', '@mescius/wijmo.cultures': 'npm:@mescius/wijmo.cultures', '@mescius/wijmo.chart': 'npm:@mescius/wijmo.chart/index.js', '@mescius/wijmo.chart.analytics': 'npm:@mescius/wijmo.chart.analytics/index.js', '@mescius/wijmo.chart.animation': 'npm:@mescius/wijmo.chart.animation/index.js', '@mescius/wijmo.chart.annotation': 'npm:@mescius/wijmo.chart.annotation/index.js', '@mescius/wijmo.chart.finance': 'npm:@mescius/wijmo.chart.finance/index.js', '@mescius/wijmo.chart.finance.analytics': 'npm:@mescius/wijmo.chart.finance.analytics/index.js', '@mescius/wijmo.chart.hierarchical': 'npm:@mescius/wijmo.chart.hierarchical/index.js', '@mescius/wijmo.chart.interaction': 'npm:@mescius/wijmo.chart.interaction/index.js', '@mescius/wijmo.chart.radar': 'npm:@mescius/wijmo.chart.radar/index.js', '@mescius/wijmo.chart.render': 'npm:@mescius/wijmo.chart.render/index.js', '@mescius/wijmo.chart.webgl': 'npm:@mescius/wijmo.chart.webgl/index.js', '@mescius/wijmo.chart.map': 'npm:@mescius/wijmo.chart.map/index.js', '@mescius/wijmo.gauge': 'npm:@mescius/wijmo.gauge/index.js', '@mescius/wijmo.grid': 'npm:@mescius/wijmo.grid/index.js', '@mescius/wijmo.grid.detail': 'npm:@mescius/wijmo.grid.detail/index.js', '@mescius/wijmo.grid.filter': 'npm:@mescius/wijmo.grid.filter/index.js', '@mescius/wijmo.grid.search': 'npm:@mescius/wijmo.grid.search/index.js', '@mescius/wijmo.grid.style': 'npm:@mescius/wijmo.grid.style/index.js', '@mescius/wijmo.grid.grouppanel': 'npm:@mescius/wijmo.grid.grouppanel/index.js', '@mescius/wijmo.grid.multirow': 'npm:@mescius/wijmo.grid.multirow/index.js', '@mescius/wijmo.grid.transposed': 'npm:@mescius/wijmo.grid.transposed/index.js', '@mescius/wijmo.grid.transposedmultirow': 'npm:@mescius/wijmo.grid.transposedmultirow/index.js', '@mescius/wijmo.grid.pdf': 'npm:@mescius/wijmo.grid.pdf/index.js', '@mescius/wijmo.grid.sheet': 'npm:@mescius/wijmo.grid.sheet/index.js', '@mescius/wijmo.grid.xlsx': 'npm:@mescius/wijmo.grid.xlsx/index.js', '@mescius/wijmo.grid.selector': 'npm:@mescius/wijmo.grid.selector/index.js', '@mescius/wijmo.grid.cellmaker': 'npm:@mescius/wijmo.grid.cellmaker/index.js', '@mescius/wijmo.nav': 'npm:@mescius/wijmo.nav/index.js', '@mescius/wijmo.odata': 'npm:@mescius/wijmo.odata/index.js', '@mescius/wijmo.olap': 'npm:@mescius/wijmo.olap/index.js', '@mescius/wijmo.rest': 'npm:@mescius/wijmo.rest/index.js', '@mescius/wijmo.pdf': 'npm:@mescius/wijmo.pdf/index.js', '@mescius/wijmo.pdf.security': 'npm:@mescius/wijmo.pdf.security/index.js', '@mescius/wijmo.viewer': 'npm:@mescius/wijmo.viewer/index.js', '@mescius/wijmo.xlsx': 'npm:@mescius/wijmo.xlsx/index.js', '@mescius/wijmo.undo': 'npm:@mescius/wijmo.undo/index.js', '@mescius/wijmo.interop.grid': 'npm:@mescius/wijmo.interop.grid/index.js', '@mescius/wijmo.touch': 'npm:@mescius/wijmo.touch/index.js', '@mescius/wijmo.cloud': 'npm:@mescius/wijmo.cloud/index.js', '@mescius/wijmo.barcode': 'npm:@mescius/wijmo.barcode/index.js', '@mescius/wijmo.barcode.common': 'npm:@mescius/wijmo.barcode.common/index.js', '@mescius/wijmo.barcode.composite': 'npm:@mescius/wijmo.barcode.composite/index.js', '@mescius/wijmo.barcode.specialized': 'npm:@mescius/wijmo.barcode.specialized/index.js', "@mescius/wijmo.angular2.chart.analytics": "npm:@mescius/wijmo.angular2.chart.analytics/index.js", "@mescius/wijmo.angular2.chart.animation": "npm:@mescius/wijmo.angular2.chart.animation/index.js", "@mescius/wijmo.angular2.chart.annotation": "npm:@mescius/wijmo.angular2.chart.annotation/index.js", "@mescius/wijmo.angular2.chart.finance.analytics": "npm:@mescius/wijmo.angular2.chart.finance.analytics/index.js", "@mescius/wijmo.angular2.chart.finance": "npm:@mescius/wijmo.angular2.chart.finance/index.js", "@mescius/wijmo.angular2.chart.hierarchical": "npm:@mescius/wijmo.angular2.chart.hierarchical/index.js", "@mescius/wijmo.angular2.chart.interaction": "npm:@mescius/wijmo.angular2.chart.interaction/index.js", "@mescius/wijmo.angular2.chart.radar": "npm:@mescius/wijmo.angular2.chart.radar/index.js", '@mescius/wijmo.angular2.chart.map': 'npm:@mescius/wijmo.angular2.chart.map/index.js', "@mescius/wijmo.angular2.chart": "npm:@mescius/wijmo.angular2.chart/index.js", "@mescius/wijmo.angular2.core": "npm:@mescius/wijmo.angular2.core/index.js", "@mescius/wijmo.angular2.gauge": "npm:@mescius/wijmo.angular2.gauge/index.js", "@mescius/wijmo.angular2.grid.detail": "npm:@mescius/wijmo.angular2.grid.detail/index.js", "@mescius/wijmo.angular2.grid.filter": "npm:@mescius/wijmo.angular2.grid.filter/index.js", "@mescius/wijmo.angular2.grid.grouppanel": "npm:@mescius/wijmo.angular2.grid.grouppanel/index.js", "@mescius/wijmo.angular2.grid.search": "npm:@mescius/wijmo.angular2.grid.search/index.js", "@mescius/wijmo.angular2.grid.multirow": "npm:@mescius/wijmo.angular2.grid.multirow/index.js", "@mescius/wijmo.angular2.grid.sheet": "npm:@mescius/wijmo.angular2.grid.sheet/index.js", '@mescius/wijmo.angular2.grid.transposed': 'npm:@mescius/wijmo.angular2.grid.transposed/index.js', '@mescius/wijmo.angular2.grid.transposedmultirow': 'npm:@mescius/wijmo.angular2.grid.transposedmultirow/index.js', "@mescius/wijmo.angular2.grid": "npm:@mescius/wijmo.angular2.grid/index.js", "@mescius/wijmo.angular2.input": "npm:@mescius/wijmo.angular2.input/index.js", "@mescius/wijmo.angular2.olap": "npm:@mescius/wijmo.angular2.olap/index.js", "@mescius/wijmo.angular2.viewer": "npm:@mescius/wijmo.angular2.viewer/index.js", "@mescius/wijmo.angular2.nav": "npm:@mescius/wijmo.angular2.nav/index.js", "@mescius/wijmo.angular2.directivebase": "npm:@mescius/wijmo.angular2.directivebase/index.js", '@mescius/wijmo.angular2.barcode.common': 'npm:@mescius/wijmo.angular2.barcode.common/index.js', '@mescius/wijmo.angular2.barcode.composite': 'npm:@mescius/wijmo.angular2.barcode.composite/index.js', '@mescius/wijmo.angular2.barcode.specialized': 'npm:@mescius/wijmo.angular2.barcode.specialized/index.js', 'bootstrap.css': 'npm:bootstrap/dist/css/bootstrap.min.css', 'jszip': 'https://cdnjs.cloudflare.com/ajax/libs/jszip/3.10.1/jszip.min.js', '@angular/core': 'npm:@angular/core/fesm2022/core.mjs', '@angular/core/primitives/signals': 'npm:@angular/core/fesm2022/primitives/signals.mjs', '@angular/core/primitives/event-dispatch': 'npm:@angular/core/fesm2022/primitives/event-dispatch.mjs', '@angular/common': 'npm:@angular/common/fesm2022/common.mjs', '@angular/common/http': 'npm:@angular/common/fesm2022/http.mjs', '@angular/compiler': 'npm:@angular/compiler/fesm2022/compiler.mjs', '@angular/platform-browser': 'npm:@angular/platform-browser/fesm2022/platform-browser.mjs', '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic/fesm2022/platform-browser-dynamic.mjs', '@angular/http': 'npm:@angular/http/fesm2022/http.mjs', '@angular/router': 'npm:@angular/router/fesm2022/router.mjs', '@angular/forms': 'npm:@angular/forms/fesm2022/forms.mjs', }, // packages tells the System loader how to load when no filename and/or no extension packages: { "./src": { defaultExtension: 'ts' }, "node_modules": { defaultExtension: 'js' }, wijmo: { defaultExtension: 'js', } } }); })(this);