How to Update the Viewport at Runtime JavaScript Diagram?

This article explains how to update the viewport at runtime in a JavaScript diagram. You can use the updateViewport() method to dynamically adjust the dimensions of the diagram’s viewport. While loading a saved diagram, updateViewport() ensures that the viewport correctly aligns with the loaded content, potentially fitting the entire diagram within view. Once the diagram is loaded, it will adjust the viewport size, ensuring the correct rendering of the JavaScript Diagram.

The below code snippet demonstrates how to update the viewport at runtime:

function loadDiagram(event) {
   diagram.loadDiagram(event.target.result);
   // Updates diagram viewport
   diagram.updateViewPort();
} 

Refer to the working sample for additional details and implementation: Sample

Conclusion

We hope you enjoyed learning how to update the viewport at runtime in the JavaScript Diagram.

You can refer to our JavaScript Diagram feature tour page to learn about its other groundbreaking feature representations and documentation, and how to quickly get started for configuration specifications. You can also explore our JavaScript Diagram example to understand how to create and manipulate data.
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