When modeling complex molecular systems, visualization is key to gaining insights and communicating your findings. SAMSON, the integrative molecular design platform, allows users to fine-tune molecular representations through its versatile presentation attributes. These attributes, part of the Node Specification Language (NSL), provide a structured way to define and manipulate the visual display of objects in your scene.
Let’s explore some essential presentation attributes, their usage, and how they can enhance your workflow.
What are Presentation Attributes?
Presentation attributes belong to the presentation attribute space, denoted by the short name pr. They interact exclusively with presentation nodes, which represent the graphical elements in your molecular models. These attributes allow for controlled visibility, naming, selection, and other visualization-related properties.
Key Attributes and How to Use Them
The table below summarizes important presentation attributes:
| Attribute Name | Short Name | Possible Values | Examples |
|---|---|---|---|
| hidden | h |
true, false |
pr.hnot pr.h |
| name | n |
strings in quotes | pr.n "A"pr.n "L*" |
| selected | true, false |
pr.selectednot pr.selected |
|
| selectionFlag | sf |
true, false |
pr.sf falsepr.sf |
| visibilityFlag | vf |
true, false |
pr.vf falsepr.vf |
| visible | v |
true, false |
pr.vnot pr.v |
How Can This Help in Molecular Design?
1. Simplify Complex Visualizations
Attributes like hidden (pr.h) and visible (pr.v) help you control what you see in a dense molecular scene. By toggling specific nodes, focus on regions of interest without cluttering your visualization.
2. Dynamically Identify Regions
Using the name attribute (pr.n), you can label parts of a molecular model, making it easier to highlight domains or components during presentations or analyses.
3. Enhance Selective Manipulation
The selectionFlag (pr.sf) and selected attributes are instrumental in fine-tuning the selection of nodes. These attributes aid in targeted edits and help streamline workflows in highly detailed structures.
Examples to Try Yourself
Below are a few practical examples:
- To hide all nodes with a specific name pattern:
pr.n "L*" and pr.h - To ensure a node is visible for analysis:
pr.v and not pr.h - To select nodes not previously selected:
not pr.selected
Conclusion
The presentation attributes in SAMSON empower molecular modelers to customize visual elements for better communication and analysis of molecular data. They are particularly useful for cleaning up visualizations, labeling nodes, and improving selection workflows. These attributes can save valuable time and offer precision in complex modeling tasks.
To explore more about presentation attributes, visit the official documentation page.
SAMSON and all SAMSON Extensions are free for non-commercial use. You can download SAMSON at SAMSON Connect.