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97 <h1>Uniting a set of triangles</h1>
99 <p><img src="../i_blue.jpg" x-maintain-ratio="TRUE" width="30px" height="30px" border="0" class="img_whs1"> In contrast to <a href="uniting_two_triangles.htm">the
100 previous operation</a> this one allows to unite at once many triangles
101 if they have adjacent edges. </p>
105 <p class=TODO>To union several triangles:</p>
107 <p class=TODO> </p>
109 <p class="whs2"><img src="../pics/a-unionoftriangles.png" x-maintain-ratio="TRUE" width="306px" height="450px" border="0" class="img_whs3"></p>
111 <p class="whs2"> </p>
113 <p class="whs2">1. Display a mesh or a submesh in the 3D
116 <p class="whs2">2. In the <span style="font-weight: bold;"><B>Modification
117 </B></span>menu select the <span style="font-weight: bold;"><B>Union of triangles
118 </B></span>item or click <img src="../image80.gif" width="23px" height="24px" border="0" class="img_whs4"> button in the toolbar. The following
119 dialog box will appear:</p>
123 <ul type="disc" class="whs5">
125 <li class=kadov-p><p class="whs6"><span
126 style="font-weight: bold;"><B>The main list </B></span>shall contain the triangles
127 which will be united. You can click on an triangle in the 3D viewer and
128 it will be highlighted. After that click the <span style="font-weight: bold;"><B>Add
129 </B></span>button and the ID of this triangle will be added to the list. To
130 remove a selected element or elements from the list click the <span style="font-weight: bold;"><B>Remove
131 </B></span>button. The <span style="font-weight: bold;"><B>Sort </B></span>button
132 allows to sort the list of IDs. The <span style="font-weight: bold;"><B>Set
133 filter </B></span>button allows to apply a definite filter to selection of
136 <li class=kadov-p><p class="whs6"><span
137 style="font-weight: bold;"><B>Apply to all </B></span>radio button allows to
138 modify the orientation of all triangles of the currently displayed mesh
141 <li class=kadov-p><p class="whs6"><span
142 style="font-weight: bold;"><B>Criterion</B></span> menu allows to apply the operation
143 only to those object which meet the chosen criterion (from the list of
144 Quality Controls, i.e. Skew, Warping, Minimum Angle, etc.)</p></li>
146 <li class=kadov-p><p class="whs6"><span
147 style="font-weight: bold;"><B>Select from </B></span>set of fields allows to
148 choose a submesh or an existing group whose triangle elements will be
149 automatically added to the list.</p></li>
152 <p class="whs2"> </p>
154 <p class="whs2">3. Click the <span style="font-weight: bold;"><B>Apply
155 </B></span>or <span style="font-weight: bold;"><B>OK </B></span>button to confirm
158 <p class="whs7"> </p>
160 <p class="whs7"><img src="../i_blue.jpg" x-maintain-ratio="TRUE" width="30px" height="30px" border="0" class="img_whs1"> If some selected triangle
161 elements have no adjacent edges with one of the others, the operation
162 on these elements shall take no effect.</p>
166 <p><img src="../pics/uniting_a_set_of_triangles1.png" x-maintain-ratio="TRUE" width="286px" height="242px" border="0" class="img_whs8"> <img src="../pics/uniting_a_set_of_triangles2.png" x-maintain-ratio="TRUE" width="286px" height="242px" border="0" class="img_whs9"></p>
170 <p> <span style="font-weight: bold;"><B>See
171 Also</B></span> a sample TUI Script of a <a href="../modifying_meshes.htm#bookmark5">Uniting
172 a Set of Triangles</a> operation. </p>
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