dynamorevit

The ConnectionNode.Zones node returns a list of zones contained within each provided connection node.

A connection node is a grouping of structural data elements (such as beams and columns) that participate in a single connection. Within these nodes, a 'zone' represents a specific portion of the structural element involved in the connection.

There are two primary zone types:

• end: Represents the end of a structural element where the connection actually occurs.
• body: Represents a location on a structural element away from the end (for example, where a brace or member connects to the web of a beam).

The Element.BoundingBox method extracts an axis-aligned bounding box (AABB) geometry from a Revit element. This bounding box represents an aligned cube relative to the Dynamo X-Axis.

Note that because it is axis-aligned, it may not accurately represent the object's specific orientation. To obtain a non-axis-aligned bounding box that better reflects the object's actual orientation, you should first extract the element's geometry and then calculate the bounding box from that geometry.

The View Parts Visibilities dropdown node provides a list of Revit "View Parts Visibility" options. These options control how Revit 'Parts' (elements created via the Parts command, such as subdivided walls or floors) are displayed in a specific view.

To apply these settings, use the View.SetPartsVisibility node. You must provide:

1. A Revit view (e.g., a 3D View) as the view input.
2. A value from the View Parts Visibilities node as the visibility setting.

Available visibility modes typically include options to show the original elements, show the parts instead of the original elements, or hide the parts.

// Conceptual Workflow:
[View Parts Visibilities] -> [Value Input]
                                     |
[3D View] ---------------------> [View.SetPartsVisibility]

In Revit, Parameter.StorageType is used to determine the underlying data type of a parameter's value. Knowing the storage type is essential for correctly casting or interpreting the data retrieved from a parameter.

Supported StorageType values include:

• None: The parameter does not store a value.
• Integer: The parameter stores a whole number.
• Double: The parameter stores a floating-point number.
• String: The parameter stores text.
• ElementId: The parameter stores a reference to another Revit element.

The Remember node allows you to store a value within the Dynamo file so it can be retrieved by the graph at a later stage. A key feature of this node is its ability to recall values even when the input is null.

Use Remember for the following purposes:

• Preserving data between different runs of the graph.
• Maintaining state within a single execution.
• Referencing previously computed or extracted information without needing to re-calculate or re-extract it every time.

The Spacing Rule Layout node is used to retrieve the current spacing rule layout from a divided path element. This layout rule determines how points are distributed along the path.

Workflow Pattern:

1. Input: A divided path element (e.g., a divided surface selected from the Revit model).
2. Process: Use Spacing Rule Layout to extract the current layout rule.
3. Modification: Combine the output with a string node (containing the parameter name, such as "Layout") to update the element's parameters (e.g., changing the layout type to FixedNumber).
4. Output: The modified divided surface element.

The SubNodesOfSize node is used to generate new connection nodes that contain a specific, exact number of zones.

This is useful for filtering or restructuring connection data. For example, you can use this node to isolate elements that have a specific structural arrangement by only including elements that meet a minimum zone count (e.g., only including elements with three or more connection zones). The output is a collection of sublists, where each sublist represents a distinct grouping or structural arrangement from the original element.