A cumulative selection is a selection in the geometry sequence that is a union of contributions from other selections. Cumulative selections are especially useful to construct a selection that has different definitions in different branches of an If clause. You can also use them as an alternative to a Union Selection node.
Cumulative Selection nodes (
) for each cumulative selection appear under
Cumulative Selections (
) at the bottom of the geometry sequence under
Geometry. For example, a Circle node creates four associated cumulative selections, which all have the same label (for example, Cumulative Selection 1). They appear with different labels under
Cumulative Selections:
Cumulative Selection 1 (Object),
Cumulative Selection 1 (Domain),
Cumulative Selection 1 (Boundary), and
Cumulative Selection 1 (Point). However, when you use the
Contribute to list in a selection node, for example, only one
Cumulative Selection node is created for the geometric entity level for that selection. When you select a
Cumulative Selection node, the corresponding geometry objects or geometric entities appear in yellow in the
Graphics window.
In the Settings window for
Cumulative Selection nodes, you can rename a cumulative selection using the
Label field. All
Cumulative Selection nodes except those for the
Object level also include the following section:
Select the Show in physics check box (the
Show in instances check box in geometry parts;
Show in 3D in a plane geometry under a work plane in a 3D component) to make the cumulative selection available in physics, materials, and other applicable settings outside of the geometry sequence. This check box is selected by default.
For a geometry feature that has a Selections of Resulting Entities section in its
Settings window, you can similarly let the resulting entities contribute to a cumulative selection by choosing an existing cumulative selection in the
Contribute to list or clicking the
New button.
To remove a cumulative selection, right-click any Cumulative Selection node that belongs to that cumulative selection and select
Delete (
). You can also right-click the main
Cumulative Selections node and select
Delete Unused Selections (
) to delete all cumulative selections that are not used.