Node and Edge Arrays
Documentation
This demo shows the Diagram component'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.
Feel free to share demo-related thoughts here.
If you have technical questions, please create a support ticket in the DevExpress Support Center.
If you have technical questions, please create a support ticket in the DevExpress Support Center.
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We appreciate your feedback.
<dx-diagram #diagram id="diagram">
<dxo-nodes
[dataSource]="flowNodesDataSource"
keyExpr="id"
textExpr="text"
typeExpr="type"
>
<dxo-auto-layout type="layered"></dxo-auto-layout>
</dxo-nodes>
<dxo-edges
[dataSource]="flowEdgesDataSource"
keyExpr="id"
fromExpr="fromId"
toExpr="toId"
textExpr="text"
></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 ArrayStore from 'devextreme/data/array_store';
import { Service } from './app.service';
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 {
flowNodesDataSource: ArrayStore;
flowEdgesDataSource: ArrayStore;
constructor(service: Service) {
this.flowNodesDataSource = new ArrayStore({
key: 'id',
data: service.getFlowNodes(),
});
this.flowEdgesDataSource = new ArrayStore({
key: 'id',
data: service.getFlowEdges(),
});
}
}
@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 FlowNode {
id: number;
text: string;
type: string;
}
export class FlowEdge {
id: number;
fromId: number;
toId: number;
text: string;
}
const flowNodes: FlowNode[] = [
{
id: 107,
text: 'A new ticket',
type: 'terminator',
},
{
id: 108,
text: 'Analyze the issue',
type: 'process',
},
{
id: 118,
text: 'Do we have all information to work with?',
type: 'diamond',
},
{
id: 120,
text: 'Answered',
type: 'terminator',
},
{
id: 121,
text: 'Request additional information or clarify the scenario',
type: 'rectangle',
},
{
id: 125,
text: 'Prepare an example in Code Central',
type: 'rectangle',
},
{
id: 127,
text: 'Update the documentation',
type: 'rectangle',
},
{
id: 131,
text: 'Process the ticket',
type: 'rectangle',
},
{
id: 133,
text: 'Work with the R&D team',
type: 'rectangle',
},
];
const flowEdges: FlowEdge[] = [
{
fromId: 107,
id: 116,
text: null,
toId: 108,
},
{
fromId: 108,
id: 117,
text: null,
toId: 118,
},
{
fromId: 118,
id: 122,
text: 'No',
toId: 121,
},
{
fromId: 121,
id: 123,
text: null,
toId: 108,
},
{
fromId: 131,
id: 124,
text: null,
toId: 120,
},
{
fromId: 120,
id: 126,
text: '',
toId: 125,
},
{
fromId: 120,
id: 130,
text: '',
toId: 127,
},
{
fromId: 118,
id: 132,
text: 'Yes',
toId: 131,
},
{
fromId: 131,
id: 134,
text: 'Need developer assistance?',
toId: 133,
},
{
fromId: 133,
id: 135,
text: null,
toId: 120,
},
];
@Injectable()
export class Service {
getFlowNodes() {
return flowNodes;
}
getFlowEdges() {
return flowEdges;
}
}
// 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/
window.config = {
transpiler: 'ts',
typescriptOptions: {
module: 'system',
emitDecoratorMetadata: true,
experimentalDecorators: true,
},
meta: {
'typescript': {
'exports': 'ts',
},
'devextreme/localization.js': {
'esModule': true,
},
},
paths: {
'npm:': 'https://unpkg.com/',
},
map: {
'ts': 'npm:plugin-typescript@4.2.4/lib/plugin.js',
'typescript': 'npm:typescript@4.2.4/lib/typescript.js',
'@angular/core': 'npm:@angular/core@12.2.17',
'@angular/platform-browser': 'npm:@angular/platform-browser@12.2.17',
'@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic@12.2.17',
'@angular/forms': 'npm:@angular/forms@12.2.17',
'@angular/common': 'npm:@angular/common@12.2.17',
'@angular/compiler': 'npm:@angular/compiler@12.2.17',
'tslib': 'npm:tslib@2.3.1/tslib.js',
'rxjs': 'npm:rxjs@7.5.3/dist/bundles/rxjs.umd.js',
'rxjs/operators': 'npm:rxjs@7.5.3/dist/cjs/operators/index.js',
'rrule': 'npm:rrule@2.6.4/dist/es5/rrule.js',
'luxon': 'npm:luxon@1.28.0/build/global/luxon.min.js',
'es6-object-assign': 'npm:es6-object-assign@1.1.0',
'devextreme': 'npm:devextreme@22.2.6/cjs',
'devextreme/bundles/dx.all': 'npm:devextreme@22.2.6/bundles/dx.all.js',
'jszip': 'npm:jszip@3.7.1/dist/jszip.min.js',
'devextreme-quill': 'npm:devextreme-quill@1.5.20/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.1.72',
'devexpress-gantt': 'npm:devexpress-gantt@4.1.43',
'devextreme-angular': 'npm:devextreme-angular@22.2.6',
'@devextreme/runtime': 'npm:@devextreme/runtime@3.0.11',
'inferno': 'npm:inferno@7.4.11/dist/inferno.min.js',
'inferno-compat': 'npm:inferno-compat/dist/inferno-compat.min.js',
'inferno-create-element': 'npm:inferno-create-element@7.4.11/dist/inferno-create-element.min.js',
'inferno-dom': 'npm:inferno-dom/dist/inferno-dom.min.js',
'inferno-hydrate': 'npm:inferno-hydrate@7.4.11/dist/inferno-hydrate.min.js',
'inferno-clone-vnode': 'npm:inferno-clone-vnode/dist/inferno-clone-vnode.min.js',
'inferno-create-class': 'npm:inferno-create-class/dist/inferno-create-class.min.js',
'inferno-extras': 'npm:inferno-extras/dist/inferno-extras.min.js',
// Prettier
'prettier/standalone': 'npm:prettier@2.8.4/standalone.js',
'prettier/parser-html': 'npm:prettier@2.8.4/parser-html.js',
},
packages: {
'app': {
main: './app.component.ts',
defaultExtension: 'ts',
},
'devextreme': {
defaultExtension: 'js',
},
'devextreme/events/utils': {
main: 'index',
},
'devextreme/events': {
main: 'index',
},
'es6-object-assign': {
main: './index.js',
defaultExtension: 'js',
},
'rxjs': {
defaultExtension: 'js',
},
'rxjs/operators': {
defaultExtension: 'js',
},
},
packageConfigPaths: [
'npm:@devextreme/*/package.json',
'npm:@devextreme/runtime@3.0.11/inferno/package.json',
'npm:@angular/*/package.json',
'npm:@angular/common@12.2.17/*/package.json',
'npm:rxjs@7.5.3/package.json',
'npm:rxjs@7.5.3/operators/package.json',
'npm:devextreme-angular@22.2.6/*/package.json',
'npm:devextreme-angular@22.2.6/ui/*/package.json',
'npm:devextreme-angular@22.2.6/package.json',
'npm:devexpress-diagram@2.1.72/package.json',
'npm:devexpress-gantt@4.1.43/package.json',
],
};
System.config(window.config);
<!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/22.2.6/css/dx.light.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/22.2.6/css/dx-diagram.css" />
<script src="https://unpkg.com/core-js@2.6.12/client/shim.min.js"></script>
<script src="https://unpkg.com/zone.js@0.13.0/dist/zone.js"></script>
<script src="https://unpkg.com/reflect-metadata@0.1.13/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>