3 \page make_2dmesh_from_3d_page Generate boundary elements
5 \n This functionality allows to generate mesh elements on the borders of
6 elements of a higher dimension.
8 <em>To generate border elements:</em>
10 <li>From the Modification menu choose "Create boundary elements"
11 item, or click "Create boundary elements" button in the toolbar
13 \image html 2d_from_3d_ico.png "Create boundary elements icon"
15 The following dialog box will appear:
16 \image html 2d_from_3d_dlg.png "Create boundary elements dialog box".
18 <li>Check in the dialog box one of three radio buttons corresponding to
19 the type of operation you would like to perform.</li>
20 <li>Fill the other fields available in the dialog box.</li>
21 <li>Click the \b Apply or <b>Apply and Close</b> button to perform the operation.</li>
24 \n "Create boundary elements" dialog allows creation of boundary elements
27 <li><b>2D from 3D</b> creates mesh faces on free facets of volume elements</li>
28 <li><b>1D from 2D</b> creates mesh edges on free edges of mesh faces</li>
29 <li><b>1D from 3D</b> creates mesh edges on all borders of free facets of volume elements</li>
31 Here a <em>free facet</em> means a facet shared by only one volume, a <em>free edge</em>
32 means an edge shared by only one mesh face.
36 <li>specify the <b>Mesh, submesh or group</b>, the boundary which of
37 will be analyzed.</li>
38 <li>specify the <b>Target</b> mesh, where the boundary elements will
41 <li><b>This mesh</b> adds elements in the selected mesh or the mesh
42 the selected submesh or group belongs to.</li>
43 <li><b>New mesh</b> adds elements to a new mesh. The new mesh appears
44 in the Object Browser with the name that you can change in the adjacent box. </li>
46 <li>activate <b>Copy source mesh</b> checkbox to copy 2D or 3D
47 elements (depending on the operation type), which belong to the analyzed
48 <b>Mesh, submesh or group</b> field, to the new mesh.</li>
49 <li>deactivate <b>Copy missing elements only</b> checkbox to copy
50 boundary elements already present in the analyzed mesh to the
52 <li>activate <b>Create group</b> checkbox to create a group to which the
53 missing boundary elements are added. The new group appears
54 in the Object Browser with the name that you can change in the adjacent box. </li>
56 <br><b>See Also</b> a sample TUI Script of a \ref tui_make_2dmesh_from_3d "Create boundary elements" operation.