Making Molecular Visualization Smarter: Using Presentation Attributes in SAMSON

As a molecular modeler, managing the complexity of visualizing intricate molecular setups can sometimes be daunting. Whether you’re inspecting large molecular assemblies, working on specialized designs, or sharing insights with peers, the ability to customize how elements are presented is key to an effective workflow. This is where the presentation attributes of the Node Specification Language (NSL) in SAMSON come in handy. Let’s explore the essentials of these attributes and how they can simplify your tasks.

What Are Presentation Attributes?

In SAMSON, nodes representing molecular components are central objects, and they can have specific visual presentation features. The presentation attribute space lets you control these features efficiently, especially when dealing with presentation nodes. Defined by the pr short name, these attributes allow you to emphasize specific elements, toggle visibility, name displayed objects, and more.

Key Presentation Attributes

Here are some core presentation attributes you might find useful:

  • Hidden (pr.h): Use this attribute to toggle whether an item is hidden. Possible values are true or false. For instance, pr.h or not pr.h can be used to control the hidden state of a node.
  • Name (pr.n): This attribute helps identify elements with custom names. You could set names such as pr.n "A" or use pattern matching like pr.n "L*" to efficiently manage complex systems.
  • Selected (pr.selected): This indicates whether a node is currently selected. Using values like true or false, you can write expressions such as pr.selected or not pr.selected.
  • SelectionFlag (pr.sf): This attribute works similarly to pr.selected, with possible expressions such as pr.sf false or simply pr.sf.
  • VisibilityFlag (pr.vf): Allows toggling visibility of the node, with expressions like pr.vf false or pr.vf.
  • Visible (pr.v): Indicates whether the node is visible. Examples of usage include pr.v or not pr.v.

Example Use Cases

By leveraging these attributes, you can enhance the way molecular presentation nodes behave and appear:

  • Effortless filtering: Locate only the parts of your system that match specific criteria, such as naming convention (e.g., all presentation nodes named “Ligand”).
  • Streamline model views: Hide or display subsets of molecular components for clearer visualization. For example, instantly hide all components with pr.h true.
  • Interactive reporting: Mark selected elements in a shared workspace using pr.selected to draw viewers’ attention to specific discoveries.

Extending Your Workflow

These attributes, inherited from the node attribute space with slight adaptations, offer an efficient way to manage and customize your molecular visualization experience. They integrate seamlessly into workflows, saving time and adding clarity to complex models.

To learn more about presentation attributes and how they integrate with SAMSON, visit the full documentation at https://documentation.samson-connect.net/users/latest/nsl/presentation/.

SAMSON and all SAMSON Extensions are free for non-commercial use. Get SAMSON at https://www.samson-connect.net.

Comments are closed.