3 \page group_of_underlying_elements_page Group Based on Nodes of Other Groups
6 To create a standalone group of entities basing on nodes of existing
7 reference groups, in the \b Mesh menu select <b>Group of underlying entities</b>.
9 The following dialog box will appear:
11 \image html dimgroup_dlg.png
13 In this dialog box specify <ul>
14 <li> the resulting <b>Group name</b>, </li>
15 <li> the <b>Elements Type</b> of entities of the resulting group,</li>
16 <li> the criterion of inclusion of a mesh entity to the result group,
17 which is <b>Number of common nodes</b> of the entity and the
18 reference groups: <ul>
19 <li>\b All - include if all nodes are common;</li>
20 <li>\b Main - include if all corner nodes are common (meaningful for
21 a quadratic mesh) </li>
22 <li><b>At least one</b> - include if one or more nodes are common</li>
23 <li>\b Majority - include if half or more nodes are common</li></ul>
25 <li> select reference groups,</li>
26 <li> If <b>Include underlying entities only</b> option is activated
27 an entity can be included if it is based on nodes of
28 one element of a reference group.</li>
31 In the figure below, there are two reference Volume groups:
33 \image html dimgroup_src.png
34 <center>Reference groups</center>
36 In this case the following results for Faces, Edges and Nodes are obtained:
38 \image html dimgroup_2d.png
39 <center>Faces</center>
41 \image html dimgroup_1d.png
42 <center>Edges</center>
44 \image html dimgroup_0d.png
45 <center>Nodes</center>
47 <b>See Also</b> a sample TUI Script of a
48 \ref tui_create_dim_group "Creating groups basing on nodes of other groups"