3 \page uniting_set_of_triangles_page Uniting a set of triangles
5 \n In contrast to the previous operation this one allows to unite at
6 once many triangles if they have adjacent edges.
8 <em>To union several triangles:</em>
10 <li>Display a mesh or a submesh in the 3D viewer.</li>
11 <li>In the \b Modification menu select the <b>Union of triangles</b>
12 item or click <em>"Union of triangles"</em> button in the toolbar.
14 \image html image80.gif
15 <center><em>"Union of triangles" button</em></center>
17 The following dialog box will appear:
19 \image html a-unionoftriangles.png
22 <li><b>The main list</b> shall contain the triangles which will be
23 united. You can click on an triangle in the 3D viewer and it will be
24 highlighted. After that click the \b Add button and the ID of this
25 triangle will be added to the list. To remove a selected element or
26 elements from the list click the \b Remove button. The \b Sort button allows
27 to sort the list of IDs. The <b>Set filter</b> button allows to apply a
28 definite filter to selection of triangles.</li>
29 <li><b>Apply to all</b> radio button allows to modify connectivity and
30 type of all triangles of the currently displayed mesh or submesh.</li>
31 <li>\b Criterion menu allows to apply the operation only to those
32 object which meet the chosen criterion (from the list of Quality
33 Controls, i.e. Skew, Warping, Minimum Angle, etc.)</li>
34 <li><b>Select from</b> set of fields allows to choose a submesh or an
35 existing group whose triangle elements will be automatically added to
40 <li>Click the \b Apply or \b OK button to confirm the operation.</li>
43 If some selected triangle elements have no adjacent edges with one of
44 the others, the operation on these elements shall take no effect.
46 \image html uniting_a_set_of_triangles1.png
48 \image html uniting_a_set_of_triangles2.png
50 <br><b>See Also</b> a sample TUI Script of a
51 \ref tui_uniting_set_of_triangles "Uniting a Set of Triangles" operation.