Tool

Bounding Box Union

Analysis

Calculates a single bounding box that encloses multiple geometries

Docs for v2.1.18, the latest version.

ID

tool-analysis-bounding-box-union

Group

Analysis

Plugin

Tool

Keywords

bbox
bb
union

Bounding Box Union

Analysis

2 inputs, 5 outputs

Ports

Inputs

2

What the node takes in, from wires or typed values.

Geometry

Geometry

Array of geometries to include in the union bounding box

Plane

Plane

Reference plane used to orient the bounding box. Defaults to XY plane

Outputs

5

What the node gives out, to wire into other nodes.

Point

Point

Center point of the resulting bounding box

Width

Number

Size of the bounding box along the X axis of the reference plane

Length

Number

Size of the bounding box along the Y axis of the reference plane

Height

Number

Size of the bounding box along the Z axis of the reference plane

Area

Number

Surface area (for 2D) or volume projection (for 3D) of the bounding box

Creation method#

There are two options for creating a Bounding Box Union node.#

  • The first way to create a Bounding Box Union node using the search list, which is opened by double left-clicking in the workspace. You can write the name of the node you need, or words associated with this node.
    • bbox , bb, union
  • The second way is to select a Bounding Box Union node from the menu that opens from the top left.
    • Menu > Tool > Analysis > Bounding Box Union

Steps#

  • Create a Bounding Box Union node.
  • Connect a list of geometries to the geometry input.
  • Optionally, connect a plane to define orientation (defaults to XY plane).
  • The output ports will provide measurements of the combined bounding box.

The Bounding Box Union node calculates the bounding box that encompasses multiple geometries at once. You can optionally provide a reference plane to compute the bounding box in a specific orientation.

It outputs the following values:

Center point of the union bounding box

Width (X direction size)

Length (Y direction size)

Height (Z direction size)

Area of the resulting bounding box surface or volume (depending on geometry types)

Works with curves, surfaces, and solids. Geometry is automatically transformed to the specified plane before measuring.

See also#

Bounding Box
Curve Length
Curve Middle Point
End Points

History

First documented in v2.1.18

Oct 20, 2026

Versions before it were published before changes were recorded.