The Partition Objects node (
) provides a way to partition geometry objects as a Boolean operation. Partitioning geometry objects can be useful to create separate domains, to introduce an interior boundary, or to cut of a part of the original geometry that is not needed for the analysis, for example. Using the
Partition Objects node, you can partition a target object using a set of
tool objects (geometry objects that are only used to partition — or tool — other geometry objects) or using an infinite plane defined by a
Work Plane node (you do not need to draw anything in the work plane). The output of a
Partition Objects node’s partitioning operation includes the same number of objects as the input to the partitioning. To add it to a model, in the
Geometry toolbar, from the
Boolean and Partitions (
) menu, select
Partition Objects. You can also right-click the
Geometry or a
Work Plane>Plane Geometry node to add this from the
Boolean and Partitions submenu. Then enter the properties of the partitioning operation using the following sections:
In the Objects to partition list, add the geometry objects that you want to apply a partition operation on. Click the
Active button to toggle between turning ON and OFF the
Objects to partition selections.
Select the Keep objects to partition check box to use the selected geometry objects to partition for further geometry operations.
From the Partition with list (3D only; for 2D, only objects can be used), select
Objects (the default) to partition using the geometry objects that you add to the
Tool objects list below, or select
Work plane to partition using any of the added work planes.
You can change the settings for the Repair tolerance list if you experience problems with the partition operation. Geometric entities that have a distance less than the repair tolerance are merged.
Select the Resulting objects selection check box to create predefined selections (for all levels — objects, domains, boundaries, edges, and points — that are applicable) in subsequent nodes in the geometry sequence. To also make all or one of the types of resulting entities (domains, boundaries, edges, and points) that the resulting objects consist of available as selections in all applicable selection lists (in physics and materials settings, for example), choose an option from the
Show in physics (
Show in instances if in a geometry part;
Show in 3D if in a work plane’s plane geometry) list:
All levels,
Domain selection,
Boundary selection,
Edge selection, or
Point selection. The default is
Domain selection, which is suitable for use with materials and physics defined in domains. For use with a boundary condition, for example, choose
Boundary selection. These selections do not appear as separate selection nodes in the model tree. Select
Off to not make any selection available outside of the geometry sequence. From the
Color list, choose a color for highlighting the resulting objects selection. See
Selection Colors.
If you have Named Selections that include entities on the input objects, select the
Propagate selections to resulting objects (selected by default) check box to update the selections to corresponding entities on the output objects, when possible. Clear the check box to not propagate the selection to the resulting objects. This can be useful in combination with selecting the
Keep objects to partition and
Keep tool objects check boxes so that the selections refer only to the input objects.
From the Construction geometry list choose
On to make the resulting objects available only in the feature’s geometry sequence. The default option
Inherit means that the resulting objects become construction geometry if all input objects are construction geometry. Choose
Off to never output construction geometry objects. For more information, see
Construction Geometry.