Mastering Label Attributes in SAMSON’s Node Specification Language

Molecular modelers often need to manage and organize data effectively while working with complex molecular systems. A common challenge is efficiently labeling and toggling visibility, selection, and other attributes across vast datasets. In SAMSON’s Node Specification Language (NSL), the label attribute space stands out as a valuable tool for tackling this challenge. In this post, we will delve into the key features of label attributes, helping you optimize your molecular modeling workflows.

What Are Label Attributes?

Label attributes in NSL provide a set of flexible and concise attributes specifically designed to manage label nodes. By leveraging these attributes, you can control properties such as visibility, selection, naming, and more. Each attribute comes with a short name for rapid expression building, making them even more efficient to use.

Overview of Label Attributes

The primary attributes available in the label attribute space (la) include:

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	(none)	`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`

Examples of Use

Here are a few examples to illustrate how label attributes can accelerate your workflow:

Filtering visible labels: Use la.v to select only visible labels, or not la.v to exclude them.
Matching label names: Use la.n "A" to find labels named “A” or la.n "L*" for labels matching the pattern “L…”.
Toggle visibility: Combine la.vf with logical expressions to quickly enable or disable label visibility within a specific set.

By combining these expressions with your molecular data, you can refine your visualization, analysis, and reporting, making your molecular modeling activity more streamlined and insightful.

Inherited Features

Label attributes inherit traits from the broader node attribute space in NSL. For example:

hidden, name, and selected attributes function similarly to their node-level counterparts.
Attributes like selectionFlag and visibilityFlag provide further granularity accessible through the label attribute space.

This inheritance structure ensures consistency while enhancing functionality for label-specific use cases.

Streamline Your Workflows

Learning to leverage label attributes will undoubtedly empower you to work more efficiently within SAMSON. Whether you’re exploring a complex molecular structure or preparing data for publication, quick access to properties like visibility, selection, and naming is a game-changer.

To explore all capabilities, visit the original SAMSON documentation page on label attributes.

SAMSON and all SAMSON Extensions are free for non-commercial use. Get your copy at samson-connect.net.