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113 <h1>Using operations on groups</h1>
115 <p><span style="font-weight: bold;"><B><img src="../i_blue.jpg" x-maintain-ratio="TRUE" width="30px" height="30px" border="0" class="img_whs1"> </B></span>In MESH you can
116 perform some Boolean operations on groups, which belong to one and the
121 <ul type="disc" class="whs2">
123 <li class=kadov-p><p class="whs3"><a href="#Union">Union</a>
126 <li class=kadov-p><p class="whs3"><a href="#Intersection">Intersection</a></p></li>
128 <li class=kadov-p><p class="whs3"><a href="#Cut">Cut</a></p></li>
133 <h3><a name=Union></a>Union of two groups</h3>
135 <p>This operation allows to create a new group in such a way that all mesh
136 elements that are present in the initial groups will be added to the new
141 <p class=TODO>To union two groups:</p>
143 <p class=TODO> </p>
145 <p class="whs4">1. In the <span style="font-weight: bold;"><B>Mesh
146 </B></span>menu select the <span style="font-weight: bold;"><B>Union Groups </B></span>item.
147 The following dialog box will appear:</p>
149 <p class="whs4"> </p>
151 <table x-use-null-cells cellspacing="0" width="100%" class="whs5">
155 <tr valign="top" class="whs8">
156 <td width="32.6%" class="whs9">
157 <p><img src="../pics/uniongroups.png" x-maintain-ratio="TRUE" width="306px" height="253px" border="0" class="img_whs10"></td>
158 <td width="67.4%" class="whs11">
159 <p><img src="../image133.gif" width="134px" height="151px" border="0" class="img_whs12"> <img src="../image134.gif" width="136px" height="151px" border="0" class="img_whs13"> <img src="../image135.gif" width="133px" height="159px" border="0" class="img_whs14"></p>
160 <p> Group1
161 Group2
162 Group12</p>
164 <p>For example, we have two groups Group1 and Group2. </p>
165 <p>The result of their <span style="font-weight: bold;"><B>Union</B></span> will
166 be Group12 </td></tr>
169 <p class="whs4"> </p>
171 <p> <span style="margin-left: 40px;">In
172 this dialog box you should specify the name</span><span style="margin-left: 40px; font-weight: bold;">
173 <B></B></span><span style="margin-left: 40px;">of the resulting group and two
174 groups which will be united.</span></p>
176 <p class="whs4"> </p>
178 <p class="whs4">2. Click the <span style="font-weight: bold;"><B>Ok
179 </B></span>or <span style="font-weight: bold;"><B> Apply
180 </B></span>button to confirm creation of the group. </p>
184 <p class="whs15"><span style="font-weight: bold;"><B>See Also</B></span>
185 a sample TUI Script of a <a href="../grouping_elements.htm#bookmark2">Union
186 of two Groups</a> operation. </p>
188 <p class="whs15"> </p>
190 <p class="whs15"> </p>
194 <h3><a name=Intersection></a>Intersection of two groups</h3>
196 <p>This operation allows to create a new group in such a way that all mesh
197 elements that are present in both initial groups are added to the new
202 <p class=TODO>To intersect two groups:</p>
204 <p class=TODO> </p>
206 <p class="whs4">1. In the <span style="font-weight: bold;"><B>Mesh
207 </B></span>menu select the <span style="font-weight: bold;"><B>Intersect Groups
208 </B></span>item. The following dialog box will appear:</p>
210 <p class="whs4"> </p>
212 <table x-use-null-cells cellspacing="0" width="100%" class="whs5">
216 <tr valign="top" class="whs8">
217 <td width="32.796%" class="whs18">
218 <p><img src="../pics/intersectgroups.png" x-maintain-ratio="TRUE" width="306px" height="253px" border="0" class="img_whs10"></td>
219 <td width="67.204%" class="whs19">
220 <p><img src="../image133.gif" width="134px" height="151px" border="0" class="img_whs12"> <img src="../image134.gif" width="136px" height="151px" border="0" class="img_whs13"><img src="../image136.gif" width="141px" height="157px" border="0" class="img_whs20"></p>
221 <p> Group1
222 Group2
223 Group12a</p>
225 <p>For example, we have two groups Group1 and Group2. </p>
226 <p>The result of their <span style="font-weight: bold;"><B>Intersection</B></span>
227 will be Group12a </td></tr>
232 <p class="whs15">In this dialog box you should specify the
233 name<span style="font-weight: bold;"> <B></B></span>of the resulting group and
234 two groups which will be intersected.</p>
236 <p class="whs4"> </p>
238 <p class="whs4">2. Click the <span style="font-weight: bold;"><B>Ok
239 </B></span>or <span style="font-weight: bold;"><B> Apply
240 </B></span>button to confirm creation of the group. </p>
244 <p> <span style="font-weight: bold;"><B>See
245 Also</B></span> a sample TUI Script of an <a href="../grouping_elements.htm#bookmark3"> Intersection
246 of two Groups</a> operation. </p>
250 <h3><a name=Cut></a>Cut of two groups</h3>
252 <p>This operation allows to create a new group in such a way that all mesh
253 elements that are present in the main group but are absent in the tool
254 group are added to the new one.</p>
258 <p class=TODO>To cut two groups:</p>
260 <p class=TODO> </p>
262 <p class="whs4">1. In the <span style="font-weight: bold;"><B>Mesh
263 </B></span>menu select the <span style="font-weight: bold;"><B>Cut Groups </B></span>item.
264 The following dialog box will appear:</p>
266 <p class="whs4"> </p>
268 <table x-use-null-cells cellspacing="0" width="100%" class="whs5">
272 <tr valign="top" class="whs8">
273 <td width="33.089%" class="whs23">
274 <p><img src="../pics/cutgroups.png" x-maintain-ratio="TRUE" width="306px" height="253px" border="0" class="img_whs10"></td>
275 <td width="66.911%" class="whs24">
276 <p><img src="../image133.gif" width="134px" height="151px" border="0" class="img_whs12"> <img src="../image134.gif" width="136px" height="151px" border="0" class="img_whs13"> <img src="../image137.gif" width="140px" height="146px" border="0" class="img_whs25"></p>
277 <p> Group1
278 Group2
279 Group12b</p>
281 <p>For example, we have two groups Group1 and Group2. </p>
282 <p>The result of their <span style="font-weight: bold;"><B>Cut</B></span> will
283 be Group12b </td></tr>
288 <p class="whs4">In this dialog box you should specify the
289 name<span style="font-weight: bold;"> <B></B></span>of the resulting group and
290 two groups which will be cut.</p>
292 <p class="whs4"> </p>
294 <p class="whs4">2. Click the <span style="font-weight: bold;"><B>Ok
295 </B></span>or <span style="font-weight: bold;"><B> Apply
296 </B></span>button to confirm creation of the group. </p>
300 <p> <span style="font-weight: bold;"><B>See
301 Also</B></span> a sample TUI Script of a <a href="../grouping_elements.htm#bookmark3"> Cut
302 of two Groups</a> operation. </p>
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