For molecular modelers working with SAMSON, the Node Specification Language (NSL) offers a way to precisely define and query elements in molecular models. One specific aspect of the NSL worth delving into is the camera attributes. These attributes allow users to manipulate and specify properties tied to camera nodes used in molecular modeling, enhancing visualization and workflow efficiency.
Let’s unpack how the camera attribute space is structured and the key features you should know to make the most of it.
What Are Camera Attributes?
Camera attributes are defined in the camera attribute space, with a short name ca, and they exclusively apply to camera nodes in SAMSON. Camera attributes inherit certain properties from the general node attribute space, making them both powerful and easy to integrate into pre-existing workflows.
Key Camera Attributes and Their Usage
Here is a breakdown of key camera attributes and how to use them effectively:
| Attribute Name | Short Name | Possible Values | Examples |
|---|---|---|---|
| name | n |
strings in quotes | ca.n "A"ca.n "L*" |
| selected | true, false |
ca.selectednot ca.selected |
|
| selectionFlag | sf |
true, false |
ca.sf falseca.sf |
Detailed Look at Notable Attributes
name
The name attribute is used to identify camera nodes by their names. It is inherited from the general node.name attribute, with its short name being n. You can narrow down matches using specific strings or wildcards.
selected
The selected attribute helps you determine whether a camera node is currently selected. Unlike other attributes, this one does not have a short name. It accepts boolean values—true or false.
selectionFlag
With a short name of sf, the selectionFlag attribute provides an alternative way to handle selected nodes. Like selected, it also accepts boolean values and can be combined with logical queries for more complex filtering.
Streamlining Molecular Modeling with NSL
The camera attributes in NSL empower users to efficiently manage camera nodes in their models. By understanding the inheritance from general node attributes and leveraging shortcuts like n and sf, users can write queries that are both concise and powerful. For example, changing visualization settings for specific camera nodes, or identifying selected cameras for further operations, becomes incredibly straightforward with these attributes.
To dive deeper into the details and find additional examples, visit the full documentation at Camera attributes documentation.
Note: SAMSON and all SAMSON Extensions are free for non-commercial use. Get started today by downloading SAMSON at SAMSON Connect.