Exploring Animation Attributes in the Node Specification Language

Molecular modelers know the importance of managing and organizing animation data. Whether you’re visualizing molecular dynamics or creating sophisticated presentations, clear control over animations is essential to streamline workflows and produce precise results. That’s where the animation attribute space of SAMSON’s Node Specification Language (NSL) comes into play.

The animation attribute space (short name: an) is specifically designed to handle attributes related to animation nodes in SAMSON. Each attribute offers distinct functionality to ensure maximum flexibility and organization for your molecular models. Here’s a breakdown of how these attributes can make your animation work smoother and more efficient:

Key Animation Attributes

The animation attribute space inherits several useful properties from its parent node attribute space. Let’s take a closer look at some of the most commonly used attributes:

  • hidden: This attribute, accessible via the short name h, toggles whether an animation node is visible. It takes the values true or false. For example, use an.h to check whether an animation node is hidden or not an.h to ensure it’s visible.
  • name: This attribute, with the short name n, allows you to identify animation nodes by their string names. You can query for nodes named “Scene A” using an.n "Scene A", or match patterns with wildcards like an.n "L*".
  • selected: This attribute checks whether an animation node is selected (true) or not (false). Note that it does not have a short name and must be used with its full name, e.g., an.selected or not an.selected.
  • selectionFlag: Indicated via the short name sf, this attribute specifies whether a selection flag is set. For instance, an.sf false removes the selection flag.
  • visibilityFlag: Using the short name vf, this attribute determines whether the visibility flag is active. For example, to disable the visibility flag, you can write an.vf false.
  • visible: This one, with the short name v, verifies whether an animation node is currently visible (true) or not (false). For instance, not an.v ensures the node is not visible.

Practical Examples

Let’s imagine you’re working on a complex molecular animation project. You might want to hide certain elements while focusing on others:

  • To query hidden animation nodes: an.h.
  • To make sure all visible nodes are displayed: not an.v.

If you’ve named your nodes systematically, e.g., by scene or molecule group, querying explicitly via names can save time:

  • Query nodes by name: an.n "Scene 1".
  • Search by a pattern, such as all labels starting with “L”: an.n "L*".

This structured querying and attribute control reduce tedious manual selection, ensuring that your workflow is efficient and targeted.

Learning More

The beauty of SAMSON’s NSL is its simplicity and precision, allowing molecular modelers to manage animations with confidence. While we’ve covered the essentials of animation attributes here, there’s much more to delve into. To explore all available options and access detailed examples, visit the official documentation at: https://documentation.samson-connect.net/users/latest/nsl/animation/.

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

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