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Connector

Connectors are objects used to create link between two points, nodes or ports to represent the relationships between them.

Create connector

Connector can be created by defining the source and target point of the connector. The path to be drawn can be defined with a collection of segments. To explore the properties of a connector, refer to Connector Properties.

Add connectors through connectors collection

The sourcePoint and targetPoint properties of connector allow you to define the end points of a connector.

The following code example illustrates how to add a connector through connector collection.

Source
Preview
app.component.ts
app.module.ts
main.ts
import { Component, ViewEncapsulation, OnInit, ViewChild } from '@angular/core';
import { DiagramComponent, Diagram, NodeModel, ConnectorModel, PointModel } from '@syncfusion/ej2-angular-diagrams';

@Component({
    selector: "app-container",
    template: `<ejs-diagram #diagram id="diagram" width="100%" height="580px" [getConnectorDefaults] ='getConnectorDefaults'>
        <e-connectors>
            <e-connector id='connector' type='Straight' [sourcePoint]='sourcePoint' [targetPoint]='targetPoint'>
            </e-connector>
        </e-connectors>
    </ejs-diagram>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent {
    @ViewChild("diagram")
    public diagram: DiagramComponent;
    public sourcePoint: PointModel;
    public targetPoint: PointModel;
    ngOnInit(): void {
        this.sourcePoint = { x: 100, y: 100 };
        this.targetPoint = { x: 200, y: 200 };
    }
    public getConnectorDefaults(obj: ConnectorModel): ConnectorModel {
        obj.style = {
            strokeColor: '#6BA5D7',
            fill: '#6BA5D7',
            strokeWidth: 2
        }
        obj.targetDecorator = {
            style: {
                fill: '#6BA5D7',
                strokeColor: '#6BA5D7'
            }
        }
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { DiagramModule } from '@syncfusion/ej2-angular-diagrams';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, DiagramModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ ]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

Add connector at runtime

Connectors can be added at runtime by using public method, diagram.add and can be removed at runtime by using public method, diagram.remove.

The following code example illustrates how to add connector at runtime.

Source
Preview
app.component.ts
app.module.ts
main.ts
import { Component, ViewEncapsulation, OnInit, ViewChild } from '@angular/core';
import { DiagramComponent, Diagram, NodeModel, ConnectorModel } from '@syncfusion/ej2-angular-diagrams';

@Component({
    selector: "app-container",
    template: `<ejs-diagram #diagram id="diagram" width="100%" height="580px" [getConnectorDefaults] ='getConnectorDefaults' (created)='created($event)'>
    </ejs-diagram>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent {
    @ViewChild("diagram")
    public diagram: DiagramComponent;
    public connectors: ConnectorModel[] = [{
        id: "connector1",
        style: {
            strokeColor: '#6BA5D7',
            fill: '#6BA5D7',
            strokeWidth: 2
        },
        targetDecorator: {
            style: {
                fill: '#6BA5D7',
                strokeColor: '#6BA5D7'
            }
        },
        sourcePoint: {
            x: 100,
            y: 100
        },
        targetPoint: {
            x: 200,
            y: 200
        }
    }]
    public getConnectorDefaults(obj: ConnectorModel): ConnectorModel {
        obj.style = {
            strokeColor: '#6BA5D7',
            fill: '#6BA5D7',
            strokeWidth: 2
        }
        obj.targetDecorator = {
            style: {
                fill: '#6BA5D7',
                strokeColor: '#6BA5D7'
            }
        }
    }
    public created(args: Object): void {
        // Adds to the Diagram
        this.diagram.add(this.connectors);
        // Remove from the diagram
        this.diagram.remove(this.connectors);
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { DiagramModule } from '@syncfusion/ej2-angular-diagrams';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, DiagramModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ ]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

Connectors from palette

Connectors can be predefined and added to the symbol palette. You can drop those connectors into the diagram, when required.

For more information about adding connectors from symbol palette, refer to Symbol Palette.

Draw connectors

Connectors can be interactively drawn by clicking and dragging on the diagram surface by using drawingObject.

For more information about drawing connectors, refer to Draw Connectors.

Update connector at runtime

Various connector properties such as sourcePoint, targetPoint, style, sourcePortID, targetPortID, etc., can be updated at the runtime.

The following code example illustrates how to update a connector’s source point, target point, styles properties at runtime.

Source
Preview
app.component.ts
app.module.ts
main.ts
import { Component, ViewEncapsulation, OnInit, ViewChild } from '@angular/core';
import { DiagramComponent, Diagram, NodeModel, ConnectorModel, PointModel } from '@syncfusion/ej2-angular-diagrams';

@Component({
    selector: "app-container",
    template: `<ejs-diagram #diagram id="diagram" width="100%" height="580px" [getConnectorDefaults] ='getConnectorDefaults'  (created)='created($event)'>
        <e-connectors>
            <e-connector id='connector' type='Straight' [sourcePoint]='sourcePoint' [targetPoint]='targetPoint'>
            </e-connector>
        </e-connectors>
    </ejs-diagram>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent {
    @ViewChild("diagram")
    public diagram: DiagramComponent;
    public sourcePoint: PointModel;
    public targetPoint: PointModel;
    ngOnInit(): void {
        this.sourcePoint = { x: 100, y: 100 };
        this.targetPoint = { x: 200, y: 200 };
    }
    public getConnectorDefaults(obj: ConnectorModel): ConnectorModel {
        obj.style = {
            strokeColor: '#6BA5D7',
            fill: '#6BA5D7',
            strokeWidth: 2
        }
        obj.targetDecorator = {
            style: {
                fill: '#6BA5D7',
                strokeColor: '#6BA5D7'
            }
        }
    }
    public created(args: Object): void {
        // Update the connector properties at the run time
        this.diagram.connectors[0].style.strokeColor = '#6BA5D7';
        this.diagram.connectors[0].style.fill = '#6BA5D7';
        this.diagram.connectors[0].style.strokeWidth = 2;
        this.diagram.connectors[0].targetDecorator.style.fill = '#6BA5D7';
        this.diagram.connectors[0].targetDecorator.style.strokeColor = '#6BA5D7';
        this.diagram.connectors[0].sourcePoint.x = 150;
        this.diagram.connectors[0].targetPoint.x = 150;
        this.diagram.dataBind();
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { DiagramModule } from '@syncfusion/ej2-angular-diagrams';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, DiagramModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ ]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

Connect nodes

  • The sourceID and targetID properties allow to define the nodes to be connected.

  • The following code example illustrates how to connect two nodes.

Source
Preview
app.component.ts
app.module.ts
main.ts
import { Component, ViewEncapsulation, ViewChild } from '@angular/core';
import { DiagramComponent, Diagram, NodeModel, ConnectorModel } from '@syncfusion/ej2-angular-diagrams';

@Component({
    selector: "app-container",
    template: `<ejs-diagram #diagram id="diagram" width="100%" height="580px" [getNodeDefaults] ='getNodeDefaults' [getConnectorDefaults] ='getConnectorDefaults'>
        <e-nodes>
            <e-node id='node1' [offsetX]=150 [offsetY]=150>
                <e-node-annotations>
                    <e-node-annotation content="Node1">
                    </e-node-annotation>
                </e-node-annotations>
            </e-node>
            <e-node id='node2' [offsetX]=350 [offsetY]=150>
                <e-node-annotations>
                    <e-node-annotation content="Custom Template">
                    </e-node-annotation>
                </e-node-annotations>
            </e-node>
        </e-nodes>
        <e-connectors>
            <e-connector id='connector' type='Straight' sourceID='node1' targetID='node2'>
            </e-connector>
        </e-connectors>
    </ejs-diagram>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent {
    @ViewChild("diagram")
    public diagram: DiagramComponent;
    public getNodeDefaults(node: NodeModel): NodeModel {
        node.height = 100;
        node.width = 100;
        node.style.fill = "#6BA5D7";
        node.style.strokeColor = "White";
        return node;
    }
    public getConnectorDefaults(obj: ConnectorModel): ConnectorModel {
        obj.style = {
            strokeColor: '#6BA5D7',
            fill: '#6BA5D7',
            strokeWidth: 2
        }
        obj.targetDecorator = {
            style: {
                fill: '#6BA5D7',
                strokeColor: '#6BA5D7'
            }
        }
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { DiagramModule } from '@syncfusion/ej2-angular-diagrams';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, DiagramModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ ]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);
  • When you remove NodeConstraints InConnect from Default, the node accepts only an outgoing connection to dock in it. Similarly, when you remove NodeConstraints OutConnect from Default, the node accepts only an incoming connection to dock in it.

  • When you remove both InConnect and OutConnect NodeConstraints from Default, the node restricts connector to establish connection in it.

  • The following code illustrates how to disable InConnect constraints.

import { Component, ViewEncapsulation, ViewChild } from "@angular/core";
import { NodeConstraints } from "@syncfusion/ej2-angular-diagrams";

@Component({
    selector: "app-container",
    template: `<ejs-diagram id="diagram" width="100%" height="580px">
        <e-nodes>
            <e-node id='node1' [height]=60 [width]=100 [offsetX]=300 [offsetY]=80 [constraints]='nodeConstraints'>
            </e-node>
        </e-nodes>
    </ejs-diagram>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent {
    @ViewChild("diagram")
    public nodeConstraints: NodeConstraints;
    ngOnInit(): void {
        this.nodeConstraints = NodeConstraints.Default & ~NodeConstraints.InConnect;
    }
}

Connections with ports

The sourcePortID and targetPortID properties allow to create connections between some specific points of source/target nodes. The following code example illustrates how to create port to port connections.

Source
Preview
app.component.ts
app.module.ts
main.ts
import { Component, ViewEncapsulation, ViewChild } from '@angular/core';
import { DiagramComponent, Diagram, NodeModel, ConnectorModel, PointPortModel, PortVisibility } from '@syncfusion/ej2-angular-diagrams';

@Component({
    selector: "app-container",
    template: `<ejs-diagram #diagram id="diagram" width="100%" height="580px" [getNodeDefaults] ='getNodeDefaults'>
        <e-nodes>
            <e-node id='node1' [offsetX]=150 [offsetY]=150 [ports]='port1'>
                <e-node-annotations>
                    <e-node-annotation content="Node1">
                    </e-node-annotation>
                </e-node-annotations>
            </e-node>
            <e-node id='node2' [offsetX]=350 [offsetY]=150 [ports]='port2'>
                <e-node-annotations>
                    <e-node-annotation content="Custom Template">
                    </e-node-annotation>
                </e-node-annotations>
            </e-node>
        </e-nodes>
        <e-connectors>
            <e-connector id='connector' type='Straight' sourceID='node1' sourcePortID='port1' targetID='node2' targetPortID='port2'>
            </e-connector>
        </e-connectors>
    </ejs-diagram>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent {
    @ViewChild("diagram")
    public diagram: DiagramComponent;
    public port1: PointPortModel[] = [{
        id: 'port1',
        offset: {
            x: 0,
            y: 0.5
        },
        visibility: PortVisibility.Visible
    }]
    public port2: PointPortModel[] = [
        {
            id: 'port2',
            offset: {
                x: 1,
                y: 0.5
            },
            visibility: PortVisibility.Visible
        },
        {
            id: 'port3',
            offset: {
                x: 0.5,
                y: 0
            },
            visibility: PortVisibility.Visible
        }
    ]
    public getNodeDefaults(node: NodeModel): NodeModel {
        node.height = 100;
        node.width = 100;
        node.style.fill = "#6BA5D7";
        node.style.strokeColor = "White";
        return node;
    }
    public getConnectorDefaults(obj: ConnectorModel): ConnectorModel {
        obj.style = {
            strokeColor: '#6BA5D7',
            fill: '#6BA5D7',
            strokeWidth: 2
        }
        obj.targetDecorator = {
            style: {
                fill: '#6BA5D7',
                strokeColor: '#6BA5D7'
            }
        }
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { DiagramModule } from '@syncfusion/ej2-angular-diagrams';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, DiagramModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ ]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

Similarly, the sourcePortID or targetPortID can be changed at the runtime by changing the port sourcePortID or targetPortID.

Source
Preview
app.component.ts
app.module.ts
main.ts
import { Component, ViewEncapsulation, ViewChild } from '@angular/core';
import { DiagramComponent, Diagram, NodeModel, ConnectorModel, PointPortModel ,PortVisibility} from '@syncfusion/ej2-angular-diagrams';

@Component({
    selector: "app-container",
    template: `<ejs-diagram #diagram id="diagram" width="100%" height="580px" [getNodeDefaults] ='getNodeDefaults'  (created)='created($event)'>
        <e-nodes>
            <e-node id='node1' [offsetX]=150 [offsetY]=150 [ports]='port1'>
                <e-node-annotations>
                    <e-node-annotation content="Node1">
                    </e-node-annotation>
                </e-node-annotations>
            </e-node>
            <e-node id='node2' [offsetX]=350 [offsetY]=150 [ports]='port2'>
                <e-node-annotations>
                    <e-node-annotation content="Custom Template">
                    </e-node-annotation>
                </e-node-annotations>
            </e-node>
        </e-nodes>
        <e-connectors>
            <e-connector id='connector' type='Straight' sourceID='node1' sourcePortID='port1' targetID='node2' targetPortID='port2'>
            </e-connector>
        </e-connectors>
    </ejs-diagram>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent {
    @ViewChild("diagram")
    public diagram: DiagramComponent;
    public port1: PointPortModel[] = [{
        id: 'port1',
        offset: {
            x: 0,
            y: 0.5
        },
        visibility: PortVisibility.Visible
    }]
    public port2: PointPortModel[] = [
        {
            id: 'port2',
            offset: {
                x: 1,
                y: 0.5
            },
            visibility: PortVisibility.Visible
        },
        {
            id: 'port3',
            offset: {
                x: 0.5,
                y: 0
            },
            visibility: PortVisibility.Visible
        }
    ]
    public getNodeDefaults(node: NodeModel): NodeModel {
        node.height = 100;
        node.width = 100;
        node.style.fill = "#6BA5D7";
        node.style.strokeColor = "White";
        return node;
    }
    public getConnectorDefaults(obj: ConnectorModel): ConnectorModel {
        obj.style = {
            strokeColor: '#6BA5D7',
            fill: '#6BA5D7',
            strokeWidth: 2
        }
        obj.targetDecorator = {
            style: {
                fill: '#6BA5D7',
                strokeColor: '#6BA5D7'
            }
        }
    }

    public created(args: Object): void {
        // Update the target portID at the run time
        this.diagram.connectors[0].targetPortID = 'port3';
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { DiagramModule } from '@syncfusion/ej2-angular-diagrams';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, DiagramModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ ]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);
  • When you set PortConstraints to InConnect, the port accepts only an incoming connection to dock in it. Similarly, when you set PortConstraints to OutConnect, the port accepts only an outgoing connection to dock in it.

  • When you set PortConstraints to None, the port restricts connector to establish connection in it.

import { Component, ViewEncapsulation, ViewChild } from "@angular/core";
import { PointPortModel, PortConstraints } from "@syncfusion/ej2-angular-diagrams";

@Component({
    selector: "app-container",
    template: `<ejs-diagram id="diagram" width="100%" height="580px">
        <e-nodes>
            <e-node id='node1' [height]=60 [width]=100 [offsetX]=300 [offsetY]=80 [ports]='port1'>
            </e-node>
        </e-nodes>
    </ejs-diagram>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent {
    @ViewChild("diagram")
    public port1: PointPortModel[];
    ngOnInit(): void {
        this.port1 = [{
            id: 'port1',
            shape: 'Circle',
            offset: { x: 0, y: 0.5 },
            text: 'In - 1',
            constraints: PortConstraints.InConnect
        }];
    }
}

Segments

The path of the connector is defined with a collection of segments. There are three types of segments.

Straight

To create a straight line, specify the type of the segment as straight and add a straight segment to segments collection and need to specify type for the connector. The following code example illustrates how to create a default straight segment.

Source
Preview
app.component.ts
app.module.ts
main.ts
import { Component, ViewEncapsulation, OnInit, ViewChild } from '@angular/core';
import { DiagramComponent, Diagram, NodeModel, ConnectorModel, StraightSegmentModel, PointModel } from '@syncfusion/ej2-angular-diagrams';

@Component({
    selector: "app-container",
    template: `<ejs-diagram #diagram id="diagram" width="100%" height="580px" [getConnectorDefaults] ='getConnectorDefaults'>
        <e-connectors>
            <e-connector id='connector' type='Straight' [sourcePoint]='sourcePoint' [targetPoint]='targetPoint' [segments]='segments'>
            </e-connector>
        </e-connectors>
    </ejs-diagram>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent {
    @ViewChild("diagram")
    public diagram: DiagramComponent;
    public sourcePoint: PointModel;
    public targetPoint: PointModel;
    public segments: StraightSegmentModel;
    ngOnInit(): void {
        this.sourcePoint = { x: 100, y: 100 };
        this.targetPoint = { x: 200, y: 200 };
        this.segments = [{
            // Defines the segment type of the connector
            type: 'Straight'
        }]
    }
    public getConnectorDefaults(obj: ConnectorModel): ConnectorModel {
        obj.style = {
            strokeColor: '#6BA5D7',
            fill: '#6BA5D7',
            strokeWidth: 2
        }
        obj.targetDecorator = {
            style: {
                fill: '#6BA5D7',
                strokeColor: '#6BA5D7'
            }
        }
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { DiagramModule } from '@syncfusion/ej2-angular-diagrams';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, DiagramModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ ]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

The point property of straight segment allows you to define the end point of it. The following code example illustrates how to define the end point of a straight segment.

Source
Preview
app.component.ts
app.module.ts
main.ts
import { Component, ViewEncapsulation, OnInit, ViewChild } from '@angular/core';
import { DiagramComponent, Diagram, NodeModel, ConnectorModel, StraightSegmentModel, PointModel } from '@syncfusion/ej2-angular-diagrams';

@Component({
    selector: "app-container",
    template: `<ejs-diagram #diagram id="diagram" width="100%" height="580px" [getConnectorDefaults] ='getConnectorDefaults'>
        <e-connectors>
            <e-connector id='connector' type='Straight' [sourcePoint]='sourcePoint' [targetPoint]='targetPoint' [segments]='segments'>
            </e-connector>
        </e-connectors>
    </ejs-diagram>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent {
    @ViewChild("diagram")
    public diagram: DiagramComponent;
    public sourcePoint: PointModel;
    public targetPoint: PointModel;
    public segments: StraightSegmentModel;
    ngOnInit(): void {
        this.sourcePoint = { x: 100, y: 100 };
        this.targetPoint = { x: 200, y: 200 };
        this.segments = [{
            // Defines the segment type of the connector
            type: 'Straight',
            point: { x: 100, y: 150 }
        }]
    }
    public getConnectorDefaults(obj: ConnectorModel): ConnectorModel {
        obj.style = {
            strokeColor: '#6BA5D7',
            fill: '#6BA5D7',
            strokeWidth: 2
        }
        obj.targetDecorator = {
            style: {
                fill: '#6BA5D7',
                strokeColor: '#6BA5D7'
            }
        }
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { DiagramModule } from '@syncfusion/ej2-angular-diagrams';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, DiagramModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ ]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

Orthogonal

Orthogonal segments is used to create segments that are perpendicular to each other.

Set the segment type as orthogonal to create a default orthogonal segment and need to specify type. The following code example illustrates how to create a default orthogonal segment.

Multiple segments can be defined one after another. To create a connector with multiple segments, define and add the segments to connector.segments collection. The following code example illustrates how to create a connector with multiple segments.

Source
Preview
app.component.ts
app.module.ts
main.ts
import { Component, ViewEncapsulation, OnInit, ViewChild } from '@angular/core';
import { DiagramComponent, Diagram, NodeModel, ConnectorModel, OrthogonalSegmentModel, PointModel } from '@syncfusion/ej2-angular-diagrams';

@Component({
    selector: "app-container",
    template: `<ejs-diagram #diagram id="diagram" width="100%" height="580px" [getConnectorDefaults] ='getConnectorDefaults'>
        <e-connectors>
            <e-connector id='connector' type='Orthogonal' [sourcePoint]='sourcePoint' [targetPoint]='targetPoint' [segments]='segments'>
            </e-connector>
        </e-connectors>
    </ejs-diagram>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent {
    @ViewChild("diagram")
    public diagram: DiagramComponent;
    public sourcePoint: PointModel;
    public targetPoint: PointModel;
    public segments: OrthogonalSegmentModel;
    ngOnInit(): void {
        this.sourcePoint = { x: 100, y: 100 };
        this.targetPoint = { x: 200, y: 200 };
        this.segments = [{
            // Defines the segment type of the connector
            type: 'Orthogonal'
        }]
    }
    public getConnectorDefaults(obj: ConnectorModel): ConnectorModel {
        obj.style = {
            strokeColor: '#6BA5D7',
            fill: '#6BA5D7',
            strokeWidth: 2
        }
        obj.targetDecorator = {
            style: {
                fill: '#6BA5D7',
                strokeColor: '#6BA5D7'
            }
        }
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { DiagramModule } from '@syncfusion/ej2-angular-diagrams';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, DiagramModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ ]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

The length and direction properties allow to define the flow and length of segment. The following code example illustrates how to create customized orthogonal segments.

Source
Preview
app.component.ts
app.module.ts
main.ts
import { Component, ViewEncapsulation, OnInit, ViewChild } from '@angular/core';
import { DiagramComponent, Diagram, NodeModel, ConnectorModel, OrthogonalSegmentModel, PointModel } from '@syncfusion/ej2-angular-diagrams';

@Component({
    selector: "app-container",
    template: `<ejs-diagram #diagram id="diagram" width="100%" height="580px" [getConnectorDefaults] ='getConnectorDefaults'>
        <e-connectors>
            <e-connector id='connector' type='Orthogonal' [sourcePoint]='sourcePoint' [targetPoint]='targetPoint' [segments]='segments'>
            </e-connector>
        </e-connectors>
    </ejs-diagram>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent {
    @ViewChild("diagram")
    public diagram: DiagramComponent;
    public sourcePoint: PointModel;
    public targetPoint: PointModel;
    public segments: OrthogonalSegmentModel;
    ngOnInit(): void {
        this.sourcePoint = { x: 100, y: 100 };
        this.targetPoint = { x: 200, y: 200 };
        this.segments = [
            {
                type: 'Orthogonal',
                direction: 'Bottom',
                length: 150
            },
            {
                type: 'Orthogonal',
                direction: 'Right',
                length: 150
            }
        ]
    }
    public getConnectorDefaults(obj: ConnectorModel): ConnectorModel {
        obj.style = {
            strokeColor: '#6BA5D7',
            fill: '#6BA5D7',
            strokeWidth: 2
        }
        obj.targetDecorator = {
            style: {
                fill: '#6BA5D7',
                strokeColor: '#6BA5D7'
            }
        }
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { DiagramModule } from '@syncfusion/ej2-angular-diagrams';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, DiagramModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ ]
})
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: You need to mention the segment type as same as what you mentioned in connector type. There should be no contradiction between connector type and segment type.

Avoid overlapping

Orthogonal segments are automatically re-routed, in order to avoid overlapping with the source and target nodes. The following preview illustrates how orthogonal segments are re-routed.

Source
Preview
app.component.ts
app.module.ts
main.ts
import { Component, ViewEncapsulation, ViewChild } from '@angular/core';
import { DiagramComponent, Diagram, NodeModel, ConnectorModel, OrthogonalSegmentModel, PointModel, PortVisibility } from '@syncfusion/ej2-angular-diagrams';

@Component({
    selector: "app-container",
    template: `<ejs-diagram #diagram id="diagram" width="100%" height="580px" [getNodeDefaults] ='getNodeDefaults' [getConnectorDefaults] ='getConnectorDefaults'>
        <e-nodes>
            <e-node id='node1' [offsetX]=150 [offsetY]=150>
                <e-node-annotations>
                    <e-node-annotation content="Node1">
                    </e-node-annotation>
                </e-node-annotations>
            </e-node>
            <e-node id='node2' [offsetX]=350 [offsetY]=150>
                <e-node-annotations>
                    <e-node-annotation content="Custom Template">
                    </e-node-annotation>
                </e-node-annotations>
            </e-node>
        </e-nodes>
        <e-connectors>
            <e-connector id='connector' type='Straight' sourceID='node1' sourcrPortID='port1' targetID='node2' targetPortID='port2'>
            </e-connector>
        </e-connectors>
    </ejs-diagram>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent {
    @ViewChild("diagram")
    public diagram: DiagramComponent;
    public port1: PointPortModel[] = [{
        id: 'port1',
        offset: {
            x: 0,
            y: 0.5
        },
        visibility: PortVisibility.Visible
    }]
    public port2: PointPortModel[] = [
        {
            id: 'port2',
            offset: {
                x: 0.5,
                y: 0
            },
            visibility: PortVisibility.Visible
        }
    ]
    public getNodeDefaults(node: NodeModel): NodeModel {
        node.height = 100;
        node.width = 100;
        node.style.fill = "#6BA5D7";
        node.style.strokeColor = "White";
        return node;
    }
    public getConnectorDefaults(obj: ConnectorModel): ConnectorModel {
        obj.style = {
            strokeColor: '#6BA5D7',
            fill: '#6BA5D7',
            strokeWidth: 2
        }
        obj.targetDecorator = {
            style: {
                fill: '#6BA5D7',
                strokeColor: '#6BA5D7'
            }
        }
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { DiagramModule } from '@syncfusion/ej2-angular-diagrams';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, DiagramModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ ]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

Bezier

Bezier segments are used to create curve segments and the curves are configurable either with the control points or with vectors.

To create a bezier segment, the segment.type is set as bezier and need to specify type for the connector. The following code example illustrates how to create a default bezier segment.

Source
Preview
app.component.ts
app.module.ts
main.ts
import { Component, ViewEncapsulation, OnInit, ViewChild } from '@angular/core';
import { DiagramComponent, Diagram, NodeModel, ConnectorModel, BezierSegmentModel, PointModel } from '@syncfusion/ej2-angular-diagrams';

@Component({
    selector: "app-container",
    template: `<ejs-diagram #diagram id="diagram" width="100%" height="580px" [getConnectorDefaults] ='getConnectorDefaults'>
        <e-connectors>
            <e-connector id='connector' type='Bezier' [sourcePoint]='sourcePoint' [targetPoint]='targetPoint' [segments]='segments'>
            </e-connector>
        </e-connectors>
    </ejs-diagram>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent {
    @ViewChild("diagram")
    public diagram: DiagramComponent;
    public sourcePoint: PointModel;
    public targetPoint: PointModel;
    public segments: OrthogonalSegmentModel;
    ngOnInit(): void {
        this.sourcePoint = { x: 100, y: 100 };
        this.targetPoint = { x: 200, y: 200 };
        this.segments = [
            {
                type: 'Bezier'
            }
        ]
    }
    public getConnectorDefaults(obj: ConnectorModel): ConnectorModel {
        obj.style = {
            strokeColor: '#6BA5D7',
            fill: '#6BA5D7',
            strokeWidth: 2
        }
        obj.targetDecorator = {
            style: {
                fill: '#6BA5D7',
                strokeColor: '#6BA5D7'
            }
        }
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { DiagramModule } from '@syncfusion/ej2-angular-diagrams';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, DiagramModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ ]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

The point1 and point2 properties of bezier segment enable you to set the control points. The following code example illustrates how to configure the bezier segments with control points.

Source
Preview
app.component.ts
app.module.ts
main.ts
import { Component, ViewEncapsulation, OnInit, ViewChild } from '@angular/core';
import { DiagramComponent, Diagram, NodeModel, ConnectorModel, BezierSegmentModel, PointModel } from '@syncfusion/ej2-angular-diagrams';

@Component({
    selector: "app-container",
    template: `<ejs-diagram #diagram id="diagram" width="100%" height="580px" [getConnectorDefaults] ='getConnectorDefaults'>
        <e-connectors>
            <e-connector id='connector' type='Bezier' [sourcePoint]='sourcePoint' [targetPoint]='targetPoint' [segments]='segments'>
            </e-connector>
        </e-connectors>
    </ejs-diagram>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent {
    @ViewChild("diagram")
    public diagram: DiagramComponent;
    public sourcePoint: PointModel;
    public targetPoint: PointModel;
    public segments: OrthogonalSegmentModel;
    ngOnInit(): void {
        this.sourcePoint = { x: 100, y: 200 };
        this.targetPoint = { x: 200, y: 100 };
        this.segments = [{
            type: 'Bezier',
            // First control point: an absolute position from the page origin
            point1: {
                x: 100,
                y: 100
            },
            // Second control point: an absolute position from the page origin
            point2: {
                x: 200,
                y: 200
            }
        }]
    }
    public getConnectorDefaults(obj: ConnectorModel): ConnectorModel {
        obj.style = {
            strokeColor: '#6BA5D7',
            fill: '#6BA5D7',
            strokeWidth: 2
        }
        obj.targetDecorator = {
            style: {
                fill: '#6BA5D7',
                strokeColor: '#6BA5D7'
            }
        }
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { DiagramModule } from '@syncfusion/ej2-angular-diagrams';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, DiagramModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ ]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

The vector1 and vector2 properties of bezier segment enable you to define the vectors. The following code illustrates how to configure a bezier curve with vectors.

Source
Preview
app.component.ts
app.module.ts
main.ts
import { Component, ViewEncapsulation, OnInit, ViewChild } from '@angular/core';
import { DiagramComponent, Diagram, NodeModel, ConnectorModel, BezierSegmentModel, PointModel } from '@syncfusion/ej2-angular-diagrams';

@Component({
    selector: "app-container",
    template: `<ejs-diagram #diagram id="diagram" width="100%" height="580px" [getConnectorDefaults] ='getConnectorDefaults'>
        <e-connectors>
            <e-connector id='connector' type='Bezier' [sourcePoint]='sourcePoint' [targetPoint]='targetPoint' [segments]='segments'>
            </e-connector>
        </e-connectors>
    </ejs-diagram>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent {
    @ViewChild("diagram")
    public diagram: DiagramComponent;
    public sourcePoint: PointModel;
    public targetPoint: PointModel;
    public segments: OrthogonalSegmentModel;
    ngOnInit(): void {
        this.sourcePoint = { x: 100, y: 100 };
        this.targetPoint = { x: 200, y: 200 };
        this.segments = [{
            type: 'Bezier',
            // Length and angle between the source point and the first control point
            vector1: {
                distance: 100,
                angle: 90
            },
            // Length and angle between the target point and the second control point
            vector2: {
                distance: 45,
                angle: 270
            }
        }]
    }
    public getConnectorDefaults(obj: ConnectorModel): ConnectorModel {
        obj.style = {
            strokeColor: '#6BA5D7',
            fill: '#6BA5D7',
            strokeWidth: 2
        }
        obj.targetDecorator = {
            style: {
                fill: '#6BA5D7',
                strokeColor: '#6BA5D7'
            }
        }
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { DiagramModule } from '@syncfusion/ej2-angular-diagrams';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, DiagramModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ ]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

Decorator

  • Starting and ending points of a connector can be decorated with some customizable shapes like arrows, circles, diamond, or path. The connection end points can be decorated with the sourceDecorator and targetDecorator properties of the connector.

  • The shape property of sourceDecorator allows to define the shape of the decorators. Similarly, the shape property of targetDecorator allows to define the shape of the decorators.

  • To create custom shape for source decorator, use pathData property. Similarly, to create custom shape for target decorator, use pathData property.

  • The following code example illustrates how to create decorators of various shapes.

Source
Preview
app.component.ts
app.module.ts
main.ts
import { Component, ViewEncapsulation, OnInit, ViewChild } from '@angular/core';
import { DiagramComponent, Diagram, ConnectorModel, DecoratorModel, PointModel } from '@syncfusion/ej2-angular-diagrams';

@Component({
    selector: "app-container",
    template: `<ejs-diagram #diagram id="diagram" width="100%" height="580px" [getConnectorDefaults] ='getConnectorDefaults'>
        <e-connectors>
                <e-connector id='connector' type='Bezier' [sourcePoint]='sourcePoint' [targetPoint]='targetPoint' [sourceDecorator]='sourceDecorator' [targetDecorator]='targetDecorator'>
            </e-connector>
        </e-connectors>
    </ejs-diagram>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent {
    @ViewChild("diagram")
    public diagram: DiagramComponent;
    public sourcePoint: PointModel;
    public targetPoint: PointModel;
    public sourceDecorator: DecoratorModel;
    public targetDecorator: DecoratorModel;
    public segments: OrthogonalSegmentModel;
    ngOnInit(): void {
        this.sourcePoint = { x: 100, y: 100 };
        this.targetPoint = { x: 200, y: 200 };
        this.sourceDecorator = {
            shape: 'Circle',
            // Defines the style for the sourceDecorator
            style: {
                // Defines the strokeWidth for the sourceDecorator
                strokeWidth: 3,
                // Defines the strokeColor for the sourceDecorator
                strokeColor: 'red'
            },

        }
        // Decorator shape - Diamond
        this.targetDecorator = {
            // Defines the custom shape for the connector's target decorator
            shape: 'Custom',
            //Defines the  path for the connector's target decorator
            pathData: 'M80.5,12.5 C80.5,19.127417 62.59139,24.5 40.5,24.5 C18.40861,24.5 0.5,19.127417 0.5,12.5' +
                'C0.5,5.872583 18.40861,0.5 40.5,0.5 C62.59139,0.5 80.5,5.872583 80.5,12.5 z'
            //defines the style for the target decorator
            style: {
                // Defines the strokeWidth for the targetDecorator
                strokeWidth: 3,
                // Defines the strokeColor for the sourceDecorator
                strokeColor: 'green',
                // Defines the opacity for the sourceDecorator
                opacity: .8
            },
        }
    }
    public getConnectorDefaults(obj: ConnectorModel): ConnectorModel {
        obj.style = {
            strokeColor: '#6BA5D7',
            fill: '#6BA5D7',
            strokeWidth: 2
        }
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { DiagramModule } from '@syncfusion/ej2-angular-diagrams';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, DiagramModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ ]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

Padding

Padding is used to leave the space between the Connector’s end point and the object to where it is connected.

  • The sourcePadding property of connector defines space between the source point and the source node of the connector.

  • The targetPadding property of connector defines space between the end point and the target node of the connector.

  • The following code example illustrates how to leave space between the connection end points and source and target nodes.

Source
Preview
app.component.ts
app.module.ts
main.ts
import { Component, ViewEncapsulation, ViewChild } from '@angular/core';
import { DiagramComponent, Diagram, NodeModel, ConnectorModel } from '@syncfusion/ej2-angular-diagrams';

@Component({
    selector: "app-container",
    template: `<ejs-diagram #diagram id="diagram" width="100%" height="580px" [getNodeDefaults] ='getNodeDefaults' [getConnectorDefaults] ='getConnectorDefaults'>
        <e-nodes>
            <e-node id='node1' [offsetX]=150 [offsetY]=150>
                <e-node-annotations>
                    <e-node-annotation content="Node1">
                    </e-node-annotation>
                </e-node-annotations>
            </e-node>
            <e-node id='node2' [offsetX]=350 [offsetY]=150>
                <e-node-annotations>
                    <e-node-annotation content="Custom Template">
                    </e-node-annotation>
                </e-node-annotations>
            </e-node>
        </e-nodes>
        <e-connectors>
            <e-connector id='connector' type='Straight' sourceID='node1' targetID='node2'>
            </e-connector>
        </e-connectors>
    </ejs-diagram>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent {
    @ViewChild("diagram")
    public diagram: DiagramComponent;
    public getNodeDefaults(node: NodeModel): NodeModel {
        node.height = 100;
        node.width = 100;
        node.style.fill = "#6BA5D7";
        node.style.strokeColor = "White";
        return node;
    }
    public getConnectorDefaults(obj: ConnectorModel): ConnectorModel {
        obj.style = {
            strokeColor: '#6BA5D7',
            fill: '#6BA5D7',
            strokeWidth: 2
        }
        // Set Source Padding value
        obj.sourcePadding = 20
        // Set Target Padding value
        obj.targetPadding = 20
        obj.targetDecorator = {
            style: {
                fill: '#6BA5D7',
                strokeColor: '#6BA5D7'
            }
        }
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { DiagramModule } from '@syncfusion/ej2-angular-diagrams';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, DiagramModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ ]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

Flip

The diagram Provides support to flip the connector. The flip is performed to give the mirrored image of the original element. The flip types are as follows:

  • HorizontalFlip Horizontal is used to interchange the connector source and target x points.

  • VerticalFlip Vertical is used to interchange the connector source and target y points.

  • Both Both is used to interchange the source point as target point and target point as source point

Source
Preview
app.component.ts
app.module.ts
main.ts
import { Component, ViewEncapsulation, OnInit, ViewChild } from '@angular/core';
import { DiagramComponent, Diagram, ConnectorModel, DecoratorModel, PointModel } from '@syncfusion/ej2-angular-diagrams';

@Component({
    selector: "app-container",
    template: `<ejs-diagram #diagram id="diagram" width="100%" height="580px" [getConnectorDefaults] ='getConnectorDefaults'>
        <e-connectors>
                <e-connector id='connector' type='Orthogonal' [sourcePoint]='sourcePoint' [targetPoint]='targetPoint'>
            </e-connector>
        </e-connectors>
    </ejs-diagram>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent {
    @ViewChild("diagram")
    public diagram: DiagramComponent;
    public sourcePoint: PointModel;
    public targetPoint: PointModel;
    public segments: OrthogonalSegmentModel;
    ngOnInit(): void {
        this.sourcePoint = { x: 100, y: 100 };
        this.targetPoint = { x: 200, y: 200 };
    }
    public getConnectorDefaults(obj: ConnectorModel): ConnectorModel {
        obj.style = {
            strokeColor: '#6BA5D7',
            fill: '#6BA5D7',
            strokeWidth: 2
        }
        // Flip the connector in horizontal direction
        obj.flip = "Horizontal"
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { DiagramModule } from '@syncfusion/ej2-angular-diagrams';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, DiagramModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ ]
})
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 flip is not applicable when the connectors connect in nodes.

Bridging

Line bridging creates a bridge for lines to smartly cross over the other lines, at points of intersection. By default, bridgeDirection is set to top. Depending upon the direction given bridging direction appears. Bridging can be enabled/disabled either with the connector.constraints or diagram.constraints. The following code example illustrates how to enable line bridging.

Source
Preview
app.component.ts
app.module.ts
main.ts
import { Component, ViewEncapsulation, OnInit, ViewChild } from '@angular/core';
import { DiagramComponent, Diagram, ConnectorModel, DecoratorModel, PointModel, DiagramConstraints } from '@syncfusion/ej2-angular-diagrams';

@Component({
    selector: "app-container",
    template: `<ejs-diagram #diagram id="diagram" width="100%" height="580px" [getConnectorDefaults] ='getConnectorDefaults' [constraints]='constraints'>
        <e-connectors>
            <e-connector id='connector1' type='Straight' [sourcePoint]='sourcePoint1' [targetPoint]='targetPoint1'></e-connector>
            <e-connector id='connector2' type='Straight' [sourcePoint]='sourcePoint2' [targetPoint]='targetPoint2'></e-connector>
        </e-connectors>
    </ejs-diagram>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent {
    @ViewChild("diagram")
    public diagram: DiagramComponent;
    public sourcePoint1: PointModel;
    public targetPoint1: PointModel;
    public sourcePoint2: PointModel;
    public targetPoint2: PointModel;
    public sourceDecorator: DecoratorModel;
    public targetDecorator: DecoratorModel;
    public constraints: DiagramConstraints;
    ngOnInit(): void {
        this.sourcePoint1 = { x: 100, y: 100 };
        this.targetPoint1 = { x: 200, y: 200 };
        this.sourcePoint2 = { x: 200, y: 100 };
        this.targetPoint2 = { x: 100, y: 200 };
        this.constraints = DiagramConstraints.Default | DiagramConstraints.Bridging;
    }
    public getConnectorDefaults(obj: ConnectorModel): ConnectorModel {
        obj.style = {
            strokeColor: '#6BA5D7',
            fill: '#6BA5D7',
            strokeWidth: 2
        }
        obj.targetDecorator = {
            style: {
                fill: '#6BA5D7',
                strokeColor: '#6BA5D7'
            }
        }
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { DiagramModule, ConnectorBridgingService } from '@syncfusion/ej2-angular-diagrams';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, DiagramModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ConnectorBridgingService]
})
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: You need to inject connector bridging module into the diagram.

The bridgeSpace property of connectors can be used to define the width for line bridging.

Limitation: Bezier segments do not support bridging.

Corner radius

Corner radius allows to create connectors with rounded corners. The radius of the rounded corner is set with the cornerRadius property.

Source
Preview
app.component.ts
app.module.ts
main.ts
import { Component, ViewEncapsulation, OnInit, ViewChild } from '@angular/core';
import { DiagramComponent, Diagram, NodeModel, ConnectorModel, OrthogonalSegmentModel, PointModel } from '@syncfusion/ej2-angular-diagrams';

@Component({
    selector: "app-container",
    template: `<ejs-diagram #diagram id="diagram" width="100%" height="580px" [getNodeDefaults] ='getNodeDefaults' [getConnectorDefaults] ='getConnectorDefaults'>
        <e-nodes>
            <e-node id='node1' [offsetX]=150 [offsetY]=150>
                <e-node-annotations>
                    <e-node-annotation content="Node1">
                    </e-node-annotation>
                </e-node-annotations>
            </e-node>
            <e-node id='node2' [offsetX]=350 [offsetY]=350>
                <e-node-annotations>
                    <e-node-annotation content="Custom Template">
                    </e-node-annotation>
                </e-node-annotations>
            </e-node>
        </e-nodes>
        <e-connectors>
            <e-connector id='connector' type='Straight' sourceID='node1' sourcrPortID='port1' targetID='node2' targetPortID='port2' [cornerRadius]='cornerRadius'>
            </e-connector>
        </e-connectors>
    </ejs-diagram>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent {
    @ViewChild("diagram")
    public diagram: DiagramComponent;
    public cornerRadius: number;
    ngOnInit(): void {
        this.cornerRadius = 10;
    }
    public getNodeDefaults(node: NodeModel): NodeModel {
        node.height = 100;
        node.width = 100;
        node.style.fill = "#6BA5D7";
        node.style.strokeColor = "White";
        return node;
    }
    public getConnectorDefaults(obj: ConnectorModel): ConnectorModel {
        obj.style = {
            strokeColor: '#6BA5D7',
            fill: '#6BA5D7',
            strokeWidth: 2
        }
        obj.targetDecorator = {
            style: {
                fill: '#6BA5D7',
                strokeColor: '#6BA5D7'
            }
        }
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { DiagramModule } from '@syncfusion/ej2-angular-diagrams';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, DiagramModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ ]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

Appearance

  • The connector’s strokeWidth, strokeColor, strokeDashArray, and opacity properties are used to customize the appearance of the connector segments.

  • The visible property of the connector enables or disables the visibility of connector.

  • Default values for all the connectors can be set using the getConnectorDefaults properties. For example, if all connectors have the same type or having the same property then such properties can be moved into getConnectorDefaults.

Segment appearance

The following code example illustrates how to customize the segment appearance.

Source
Preview
app.component.ts
app.module.ts
main.ts
import { Component, ViewEncapsulation, OnInit, ViewChild } from '@angular/core';
import { DiagramComponent, Diagram, ConnectorModel, OrthogonalSegmentModel, PointModel, StrokeStyleModel } from '@syncfusion/ej2-angular-diagrams';

@Component({
    selector: "app-container",
    template: `<ejs-diagram #diagram id="diagram" width="100%" height="580px" [getConnectorDefaults] ='getConnectorDefaults'>
        <e-connectors>
            <e-connector id='connector' type='Straight' [sourcePoint]='sourcePoint' [targetPoint]='targetPoint'>
            </e-connector>
        </e-connectors>
    </ejs-diagram>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent {
    @ViewChild("diagram")
    public diagram: DiagramComponent;
    public sourcePoint: PointModel;
    public targetPoint: PointModel;
    public style: StrokeStyleModel;
    ngOnInit(): void {
        this.sourcePoint = { x: 100, y: 100 };
        this.targetPoint = { x: 200, y: 200 };
        this.style = {
            // Stroke color
            strokeColor: '#6BA5D7',
            fill: '#6BA5D7',
            // Stroke width of the line
            strokeWidth: 2,
            // Line style
            strokeDashArray: '2,2'
        }
    }
    public getConnectorDefaults(obj: ConnectorModel): ConnectorModel {
        obj.targetDecorator = {
            style: {
                fill: '#6BA5D7',
                strokeColor: '#6BA5D7'
            }
        }
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { DiagramModule } from '@syncfusion/ej2-angular-diagrams';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, DiagramModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ ]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

Decorator appearance

  • The source decorator’s strokeColor, strokeWidth, and strokeDashArray properties are used to customize the color, width, and appearance of the decorator.

  • To set the border stroke color, stroke width, and stroke dash array for the target decorator, use strokeColor, strokeWidth, and strokeDashArray.

  • To set the size for source and target decorator, use width and height property.

The following code example illustrates how to customize the appearance of the decorator.

Source
Preview
app.component.ts
app.module.ts
main.ts
import { Component, ViewEncapsulation, OnInit, ViewChild } from '@angular/core';
import { DiagramComponent, Diagram, ConnectorModel, DecoratorModel, PointModel } from '@syncfusion/ej2-angular-diagrams';

@Component({
    selector: "app-container",
    template: `<ejs-diagram #diagram id="diagram" width="100%" height="580px" [getConnectorDefaults] ='getConnectorDefaults'>
        <e-connectors>
                <e-connector id='connector' type='Bezier' [sourcePoint]='sourcePoint' [targetPoint]='targetPoint'[targetDecorator]='targetDecorator'>
            </e-connector>
        </e-connectors>
    </ejs-diagram>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent {
    @ViewChild("diagram")
    public diagram: DiagramComponent;
    public sourcePoint: PointModel;
    public targetPoint: PointModel;
    ngOnInit(): void {
        this.sourcePoint = { x: 100, y: 100 };
        this.targetPoint = { x: 200, y: 200 };
        this.targetDecorator = {
            style: {
                // Fill color of the decorator
                fill: '#6BA5D7',
                // Stroke color of the decorator
                strokeColor: '#6BA5D7'
            }
    }
    public getConnectorDefaults(obj: ConnectorModel): ConnectorModel {
        obj.style = {
            strokeColor: '#6BA5D7',
            fill: '#6BA5D7',
            strokeWidth: 2
        }
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { DiagramModule } from '@syncfusion/ej2-angular-diagrams';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, DiagramModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ ]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

Interaction

  • Diagram allows to edit the connectors at runtime. To edit the connector segments at runtime, refer to Connection Editing.

Constraints

  • The constraints property of connector allows to enable/disable certain features of connectors.

  • To enable or disable the constraints, refer constraints.

The following code illustrates how to disable selection.

Source
Preview
app.component.ts
app.module.ts
main.ts
import { Component, ViewEncapsulation, OnInit, ViewChild } from '@angular/core';
import { DiagramComponent, Diagram, ConnectorModel, DecoratorModel, PointModel, ConnectorConstraints } from '@syncfusion/ej2-angular-diagrams';

@Component({
    selector: "app-container",
    template: `<ejs-diagram #diagram id="diagram" width="100%" height="580px" [getConnectorDefaults] ='getConnectorDefaults'>
        <e-connectors>
            <e-connector id='connector1' type='Straight' [sourcePoint]='sourcePoint1' [targetPoint]='targetPoint1' [constraints]='constraints'></e-connector>
        </e-connectors>
    </ejs-diagram>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent {
    @ViewChild("diagram")
    public diagram: DiagramComponent;
    public sourcePoint1: PointModel;
    public targetPoint1: PointModel;
    public constraints: ConnectorConstraints;
    ngOnInit(): void {
        this.sourcePoint1 = { x: 100, y: 100 };
        this.targetPoint1 = { x: 200, y: 200 };
        this.constraints = ConnectorConstraints.Default & ~ConnectorConstraints.Select;
    }
    public getConnectorDefaults(obj: ConnectorModel): ConnectorModel {
        obj.style = {
            strokeColor: '#6BA5D7',
            fill: '#6BA5D7',
            strokeWidth: 2
        }
        obj.targetDecorator = {
            style: {
                fill: '#6BA5D7',
                strokeColor: '#6BA5D7'
            }
        }
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { DiagramModule } from '@syncfusion/ej2-angular-diagrams';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, DiagramModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ ]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

Custom properties

  • The addInfo property of connectors allow you to maintain additional information to the connectors.
<e-connectors>
    <e-connector id='connector1' type='Straight' addInfo='centralconnector' [sourcePoint]='sourcePoint1' [targetPoint]='targetPoint1' [constraints]='constraints'></e-connector>
</e-connectors>

Stack order

The connectors zIndex property specifies the stack order of the connector. A connector with greater stack order is always in front of a connector with a lower stack order.

The following code illustrates how to render connector based on the stack order.

Source
Preview
app.component.ts
app.module.ts
main.ts
import { Component, ViewEncapsulation, OnInit, ViewChild } from '@angular/core';
import { DiagramComponent, Diagram, ConnectorModel, DecoratorModel, PointModel, ConnectorConstraints } from '@syncfusion/ej2-angular-diagrams';

@Component({
    selector: "app-container",
    template: `<ejs-diagram #diagram id="diagram" width="100%" height="580px" [getConnectorDefaults] ='getConnectorDefaults'>
        <e-connectors>
            <e-connector id='connector1' type='Straight' zIndex=2 [sourcePoint]='sourcePoint1' [targetPoint]='targetPoint1'></e-connector>
            <e-connector id='connector2' type='Straight' zIndex=1 [sourcePoint]='sourcePoint2' [targetPoint]='targetPoint2'></e-connector>
        </e-connectors>
    </ejs-diagram>`,
    encapsulation: ViewEncapsulation.None
})
export class AppComponent {
    @ViewChild("diagram")
    public diagram: DiagramComponent;
    public sourcePoint1: PointModel;
    public targetPoint1: PointModel;
    public sourcePoint2: PointModel;
    public targetPoint2: PointModel;
    ngOnInit(): void {
        this.sourcePoint1 = { x: 100, y: 100 };
        this.targetPoint1 = { x: 200, y: 200 };
        this.sourcePoint2 = { x: 200, y: 100 };
        this.targetPoint2 = { x: 100, y: 200 };
    }
    public getConnectorDefaults(obj: ConnectorModel): ConnectorModel {
        obj.style = {
            strokeColor: '#6BA5D7',
            fill: '#6BA5D7',
            strokeWidth: 2
        }
        obj.targetDecorator = {
            style: {
                fill: '#6BA5D7',
                strokeColor: '#6BA5D7'
            }
        }
    }
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { DiagramModule } from '@syncfusion/ej2-angular-diagrams';

/**
 * Module
 */
@NgModule({
    imports: [
        BrowserModule, DiagramModule
    ],
    declarations: [AppComponent],
    bootstrap: [AppComponent],
    providers: [ ]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';

enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

See Also