How to Update Orthogonal Segments in JavaScript Diagram Connectors?

To update orthogonal segments when a connector is drawn dynamically from one port to another, you can utilize the CollectionChange event. When a connector is added or removed, the JavaScript Diagram connector collection is modified, which triggers the collectionChange event. This event is triggered twice during the process-once in the “changing” state and again in the “changed” state once the action has been completed.

Below is a code example demonstrating how to update orthogonal segments when dynamically drawing a connectors:

We can draw the connector from the port by enabling draw constraints on the port.

       constraints:
         ej.diagrams.PortConstraints.Default |
         ej.diagrams.PortConstraints.Draw,

When the connector is drawn, the event is triggered and updates the segments of an orthogonal connector when the connector’s state changes to ‘Changed’.

collectionChange: function (args) {
    if (args.state === 'Changed' && args.element.type == 'Orthogonal') {
       let connector = args.element;
       connector.segments = [
         {
           type: 'Orthogonal',
           direction: 'Right',
           length: 70,
         },
       ];
     }
   }, 

Sample

Conclusion

I hope you enjoyed learning how to update orthogonal segments in JavaScript Diagram connectors.
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