Group Based on Nodes of Other Groups

To create a standalone group of entities basing on nodes of existing reference groups, in the Mesh menu select Group of underlying entities.

The following dialog box will appear:

In this dialog box specify

• the resulting Group name,
• the Elements Type of entities of the resulting group,
• the criterion of inclusion of a mesh entity to the result group, which is Number of common nodes of the entity and the reference groups:
  • All - include if all nodes are common;
  • Main - include if all corner nodes are common (meaningful for a quadratic mesh)
  • At least one - include if one or more nodes are common
  • Majority - include if half or more nodes are common
• select reference groups,
• If Include underlying entities only option is activated an entity can be included if it is based on nodes of one element of a reference group.

In the figure below, there are two reference Volume groups:

Reference groups

In this case the following results for Faces, Edges and Nodes are obtained:

Faces

Edges

Nodes

See Also a sample TUI Script of a Creating groups basing on nodes of other groups operation.