Use Partition with Ball () to partition geometric entities of a mesh by creating at least one new geometric entity for the elements enclosed in the specified ball, as seen in Figure 8-93.

To add a Partition with Ball () node, select one or several entities in the Graphics window, then choose one of the following:

Enter the properties for the Partition with Ball node using the following sections:

Define the geometric entities that you want to partition. You choose the geometric entity level from the Geometric entity level list:

Specify the center of the ball in the x, y, and z (only in 3D) fields (SI unit: m).

Specify the radius of the ball in the Radius field (SI unit: m). The default radius is 1.

Use the Include element if ball contains list to select the condition for which the element is enclosed in the specified ball. Choose All vertices to consider an element to be enclosed in the specified ball if all element vertices are located inside, or choose Some vertex to consider it enclosed if at least one element vertex is located inside the ball.

Select one or both of the Entities inside and Entities outside checkboxes to create predefined selections in subsequent nodes in the mesh sequence. To also make the selections available 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 mesh part) list: All levels, Domain selection, Boundary selection, Edge selection or Point selection. To keep the selection local to the mesh sequence or mesh part, choose Off. 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. From the Color list, choose a color for highlighting the resulting objects selection. See Selection Colors and Creating Named Selections in Mesh Sequences.