One of the most rewarding aspects of molecular modeling is being able to visualize nanosystems with clarity and detail. Whether you’re analyzing a protein’s secondary structure or investigating electrostatic fields, having the right visual representations is crucial. Fortunately, SAMSON provides a robust framework to make this process seamless with its Visual Models.
What Are SAMSON Visual Models?
Visual models in SAMSON are tools that allow you to create graphical representations of molecular systems. From secondary structure depictions of proteins to Gaussian surfaces and isosurfaces of electron densities, visual models give users multiple ways to interpret and present data.
Why is this helpful? Because different visual needs demand flexibility. For instance, you might want to highlight charged residues on a solvent-excluded surface or showcase an electrostatic field. SAMSON visual models empower you to do just that.
Built-in Convenience and Customization
SAMSON comes equipped with a variety of pre-installed visual models. You can access these default options, and if you ever need additional features, you can expand your toolkit through SAMSON Connect. The extensibility of SAMSON is particularly valuable for dealing with niche requirements in molecular simulations.
To apply a visual model, you can:
- Use the context toolbar menu after selecting specific nodes.
- Navigate via the menu with Visualization > Add > Visual model.
- Use a keyboard shortcut: Ctrl/Cmd + Shift + V.
If nothing in your system is selected, the visual model will be applied to the entire document, making it easy to visualize complex nanosystems at a glance. The image below showcases some of the default visual models available in SAMSON:

Streamlined Analysis with the Inspector
One of SAMSON’s strengths is its adaptability. You can fine-tune the visualization parameters of certain models using the Inspector. For instance, selecting a visual model in the Document view and choosing Inspect in the context menu gives you direct access to modify parameters.
Here’s an example showing secondary structure visual model parameters being customized in the Inspector:

Highlight Key Features
Default visual models also simplify the selection process. They allow you to highlight and select atoms, residues, chains, and more, directly via graphical representations such as surfaces. The behavior depends on the current selection filter.
For example, when using a solvent-excluded surface visualization, you can quickly identify and select specific residues as shown in this illustration:

Developing Your Custom Visual Models
For users who require specialized visualizations, SAMSON also allows the development of custom visual models. You can dive deeper into this topic through the extension generator documentation. This feature is perfect for users wanting to explore innovative ways to represent complex nanosystems.
Conclusion
SAMSON’s visual models offer a powerful yet intuitive way to analyze and present molecular systems. Whether you’re leveraging built-in tools for immediate use or creating specialized extensions for unique requirements, visual models can significantly enhance your molecular modeling workflow.
To explore more about visual models in SAMSON and maximize their potential, visit the official documentation page.
Note: SAMSON and all SAMSON Extensions are free for non-commercial use. You can download SAMSON at https://www.samson-connect.net.
