Tool

Region Union

Boolean Operation

Returns union of a set of planar closed curves

Docs for v2.1.18, the latest version.

ID

tool-boolean-operation-region-union

Group

Boolean Operation

Plugin

Tool

Keywords

union
boolean
crv
ru

Region Union

Boolean Operation

1 input, 1 output

Ports

Inputs

1

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

Region 1

Geometry

Curves(Regions) or Curve(Region) for boolean union operation

Outputs

1

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

Curve

Curve

Result outlines of boolean union

Creation method#

There are two options for creating a Region Union node.#

  • The first way to create a Region 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.
    • union , boolean , crv , ru
  • The second way is to select a Region Union node from the menu that opens from the top left.
    • Menu > Tool > Boolean Operation > Region Union

Steps#

  • Create a Region Union node.
  • Connect the first region with which we want to union to the first port.
  • Connect the second region that we want to union with the first region.
  • Add a port for additional regions using the "add port" function in the port menu and connect other regions to the added ports.

After creating a node, to the first port, connect the first region with which we want to union other regions, connect the second region to the second port with which we want to union the first region connected to the first port. For more than two regions, you need to add ports using the "add port" function in the port menu and connect other regions to these ports. On the output port, we will get the result of the union.

See also#

Region Difference
Region Intersection

History

First documented in v2.1.18

Oct 20, 2026

Versions before it were published before changes were recorded.