Effortlessly Control Label Nodes with NSL Attributes in SAMSON

For molecular modelers working on complex projects, effectively managing and customizing label nodes in your models can be a challenging task. Labels are crucial for annotating elements, organizing workflows, or visually enhancing your models. In this blog post, we’ll delve into the label attribute space in SAMSON’s Node Specification Language (NSL), empowering you to work smarter by efficiently handling label nodes.

What is the label Attribute Space?

The label attribute space (short name: la) in NSL is designed exclusively for managing label nodes. Whether you need to hide or show specific labels, filter labels by their name, or manage selection and visibility flags, you can leverage a set of attributes to fine-tune how labels are used in your project. Importantly, these attributes are inherited from the general node attribute space, ensuring consistency and flexibility.

Overview of Key Attributes

Below, we summarize the primary label attributes and their use cases:

Attribute Name Short Name Possible Values Examples
hidden h true, false la.h, not la.h
name n Strings in quotes la.n "A", la.n "L*"
selected – true, false la.selected, not la.selected
selectionFlag sf true, false la.sf false, la.sf
visibilityFlag vf true, false la.vf false, la.vf
visible v true, false la.v, not la.v

Practical Tips for Using Label Attributes

Here are some practical applications for these attributes:

  • Hiding labels: Use la.h true to hide a label or not la.h to filter only visible labels.
  • Filtering by names: Narrow down to specific labels using patterns like la.n "MyLabel" or wildcard expressions like la.n "My*".
  • Managing visibility: Combine visibilityFlag (la.vf) and visible (la.v) attributes to handle label appearance programmatically.
  • Working with selection: Use la.selected to target selected labels or not la.selected for unselected ones, helping you organize and refine specific areas of focus.

Why This Matters

By learning to master these attributes, you gain finer control over label nodes, leading to more organized workflows and visually precise presentations. Whether you’re annotating a protein structure or grouping labels for a complex molecular system, the label attribute space offers the tools you need for customization and clarity.

For a deeper dive into the label attributes and their applications, visit the full documentation page at Label Attributes in NSL.

SAMSON and all SAMSON Extensions are free for non-commercial use. You can download SAMSON at samson-connect.net.

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