For molecular modelers, clarity is everything when conducting analyses or sharing visual data. If you’ve ever struggled with making annotations clear or ensuring critical structural details stand out, SAMSON offers robust label customization tools to streamline the process. In this post, we’ll dive into how you can create, modify, and perfect labels in SAMSON to make your molecular models not only accurate but also presentation-ready.
Why Labels Matter
Labels in SAMSON serve as annotations visible directly in your 3D molecular scenes, helping you identify and explain important features. Whether it’s naming key atoms, highlighting residues, or documenting measurements, labels provide crucial contextual information. Without the effective use of labels, valuable insights may be lost or difficult to communicate in collaborative environments.
Getting Started with Labels
To add labels, simply select the nodes you want to annotate in the Viewport, and utilize the labeling tools available in the context toolbar. SAMSON’s labeling options allow you to either add a single label to a group of selected nodes or create labels for node descendants, like residues within a specific molecule. This flexibility is particularly useful when dealing with complex molecular systems.
Additionally, activating the Label editor from the left-side menu in the Viewport further simplifies label creation directly within your molecular model.

Refining Visibility and Placement
The ability to toggle visibility of labels in the Document view is a simple yet powerful feature. For instance, labels for smaller nodes like atoms may automatically disappear during zoom-out for clarity, while labels for larger nodes like molecules become prominent. If you want to fine-tune precisely when a label appears or vanishes, you can adjust the maximum and minimum display radii for that label using the Inspector.
For better clarity, labels can also be repositioned. By modifying their Viewport offset in the Inspector or using move editors such as the Displace editor, you can ensure they’re optimally placed to avoid visual clutter.

Customizing Labels for a Polished Look
SAMSON provides multiple ways to modify the style of your labels, giving you full control over their appearance:
- Font and Size: Change fonts universally in Preferences > Rendering > Labels or individually customize the font of selected labels via the Inspector.
- Text Color: Labels can be colorized for better categorization. Simply select a label and assign a constant color through the context toolbar or the Inspector. You can also reset these back to default if needed.
- Transparency: Adjust transparency settings in the Inspector for better integration into your model’s visual context.

Conclusion
Labels in SAMSON are a vital asset for molecular modeling. By customizing their visibility, position, font, color, and transparency, you ensure that your models are not only visually appealing but also highly informative. These tools make analysis and presentations far more impactful.
To dive deeper into label customization, visit the official SAMSON documentation.
Note: SAMSON and all SAMSON Extensions are free for non-commercial use. Get SAMSON today!
