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Diagram

Node and Edge Arrays

Documentation

This demo shows the Diagram widget's capability to load an external tree or a graph structure from two data sources: an array of shapes and an array of shape connectors. The connector is specified by the shape's ID attributes. The Diagram transforms information from the data sources into a tree layout view.

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<dx-diagram #diagram id="diagram"> <dxo-nodes [dataSource]="orgItemsDataSource" keyExpr="ID" textExpr="Text" typeExpr="Type"> <dxo-auto-layout type="tree"></dxo-auto-layout> </dxo-nodes> <dxo-edges [dataSource]="orgLinksDataSource" keyExpr="ID" fromExpr="From" toExpr="To"></dxo-edges> <dxo-toolbox> <dxi-group category="general" title="General"></dxi-group> </dxo-toolbox> </dx-diagram>
import { NgModule, Component, ViewChild, enableProdMode } from '@angular/core'; import { BrowserModule } from '@angular/platform-browser'; import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; import { HttpClient, HttpClientModule } from '@angular/common/http'; import { DxDiagramModule, DxDiagramComponent } from 'devextreme-angular'; import { Service } from './app.service'; import ArrayStore from 'devextreme/data/array_store' if(!/localhost/.test(document.location.host)) { enableProdMode(); } @Component({ selector: 'demo-app', templateUrl: 'app/app.component.html', styleUrls: ['app/app.component.css'], providers: [Service], preserveWhitespaces: true }) export class AppComponent { orgItemsDataSource: ArrayStore; orgLinksDataSource: ArrayStore; constructor(service: Service) { this.orgItemsDataSource = new ArrayStore({ key: "this", data: service.getOrgItems() }); this.orgLinksDataSource = new ArrayStore({ key: "this", data: service.getOrgLinks() }); } } @NgModule({ imports: [ BrowserModule, HttpClientModule, DxDiagramModule ], declarations: [AppComponent], bootstrap: [AppComponent] }) export class AppModule { } platformBrowserDynamic().bootstrapModule(AppModule);
::ng-deep #diagram { height: 725px; }
import { Injectable } from '@angular/core'; export class OrgItem { ID: string; Text: string; Type: string; } export class OrgLink { ID: string; From: string; To: string; } let orgItems: OrgItem[] = [ { "ID": "106", "Text": "Development", "Type": "ellipse" }, { "ID": "107", "Text": "WinForms\nTeam", "Type": "ellipse" }, { "ID": "108", "Text": "WPF\nTeam", "Type": "ellipse" }, { "ID": "109", "Text": "Javascript\nTeam", "Type": "ellipse" }, { "ID": "110", "Text": "ASP.NET\nTeam", "Type": "ellipse" }, { "ID": "112", "Text": "Ana\nTrujillo", "Type": "rectangle" }, { "ID": "113", "Text": "Antonio\nMoreno", "Type": "rectangle" }, { "ID": "115", "Text": "Christina\nBerglund", "Type": "rectangle" }, { "ID": "116", "Text": "Hanna\nMoos", "Type": "rectangle" }, { "ID": "117", "Text": "Frederique\nCiteaux", "Type": "rectangle" }, { "ID": "119", "Text": "Laurence\nLebihan", "Type": "rectangle" }, { "ID": "120", "Text": "Elizabeth\nLincoln", "Type": "rectangle" }, { "ID": "122", "Text": "Patricio\nSimpson", "Type": "rectangle" }, { "ID": "123", "Text": "Francisco\nChang", "Type": "rectangle" } ]; var orgLinks: OrgLink[] = [ { "ID": "124", "From": "106", "To": "108", }, { "ID": "125", "From": "106", "To": "109", }, { "ID": "126", "From": "106", "To": "107", }, { "ID": "127", "From": "106", "To": "110", }, { "ID": "129", "From": "110", "To": "112", }, { "ID": "130", "From": "110", "To": "113", }, { "ID": "132", "From": "107", "To": "115", }, { "ID": "133", "From": "107", "To": "116", }, { "ID": "134", "From": "107", "To": "117", }, { "ID": "136", "From": "108", "To": "119", }, { "ID": "137", "From": "108", "To": "120", }, { "ID": "139", "From": "109", "To": "122", }, { "ID": "140", "From": "109", "To": "123", } ]; @Injectable() export class Service { getOrgItems() { return orgItems; } getOrgLinks() { return orgLinks; } }
// 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://js.devexpress.com/Documentation/Guide/Angular_Components/Getting_Started/Create_a_DevExtreme_Application/ System.config({ transpiler: 'ts', typescriptOptions: { module: "system", emitDecoratorMetadata: true, experimentalDecorators: true }, meta: { 'typescript': { "exports": "ts" }, }, paths: { 'npm:': 'https://unpkg.com/' }, map: { 'ts': 'npm:plugin-typescript@8.0.0/lib/plugin.js', 'typescript': 'npm:typescript@3.4.5/lib/typescript.js', '@angular': 'npm:@angular', 'tslib': 'npm:tslib/tslib.js', 'rxjs': 'npm:rxjs', 'devextreme': 'npm:devextreme@20.1', 'jszip': 'npm:jszip@3.1.3/dist/jszip.min.js', 'quill': 'npm:quill@1.3.7/dist/quill.js', 'devexpress-diagram': 'npm:devexpress-diagram@1.0.5', 'devexpress-gantt': 'npm:devexpress-gantt@1.0.3', 'devextreme-angular': 'npm:devextreme-angular@20.1' }, packages: { 'app': { main: './app.component.ts', defaultExtension: 'ts' }, 'devextreme': { defaultExtension: 'js' }, 'devextreme/events/utils': { main: 'index' }, 'devextreme/events': { main: 'index' }, }, packageConfigPaths: [ "npm:*/package.json", "npm:@angular/*/package.json", "npm:@angular/common/*/package.json", "npm:rxjs/operators/package.json", "npm:devextreme-angular@20.1/*/package.json", "npm:devextreme-angular@20.1/ui/*/package.json", ] });
<!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/20.1.4/css/dx.common.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.1.4/css/dx.light.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.1.4/css/dx-diagram.css" /> <script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script> <script src="https://unpkg.com/zone.js@0.10.2/dist/zone.js"></script> <script src="https://unpkg.com/reflect-metadata@0.1.3/Reflect.js"></script> <script src="https://unpkg.com/systemjs@0.21.3/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>