doc/salome/gui/SMESH/files/using_operations_on_groups.htm

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 112 </script>
 113 <h1>Using operations on groups</h1>
 114
 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
 117  same mesh.</p>
 118
 119 <p>&nbsp;</p>
 120
 121 <ul type="disc" class="whs2">
 122
 123         <li class=kadov-p><p class="whs3"><a href="#Union">Union</a>
 124  </p></li>
 125
 126         <li class=kadov-p><p class="whs3"><a href="#Intersection">Intersection</a></p></li>
 127
 128         <li class=kadov-p><p class="whs3"><a href="#Cut">Cut</a></p></li>
 129 </ul>
 130
 131 <p>&nbsp;</p>
 132
 133 <h3><a name=Union></a>Union of two groups</h3>
 134
 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
 137  one.</p>
 138
 139 <p>&nbsp;</p>
 140
 141 <p class=TODO>To union two groups:</p>
 142
 143 <p class=TODO>&nbsp;</p>
 144
 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>
 148
 149 <p class="whs4">&nbsp;</p>
 150
 151 <table x-use-null-cells cellspacing="0" width="100%" class="whs5">
 152 <col class="whs6">
 153 <col class="whs7">
 154
 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"> &nbsp;&nbsp;<img src="../image134.gif" width="136px" height="151px" border="0" class="img_whs13"> &nbsp;&nbsp;&nbsp;&nbsp;<img src="../image135.gif" width="133px" height="159px" border="0" class="img_whs14"></p>
 160 <p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Group1
 161  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Group2
 162  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Group12</p>
 163 <p>&nbsp;</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 &nbsp;&nbsp;</td></tr>
 167 </table>
 168
 169 <p class="whs4">&nbsp;&nbsp;</p>
 170
 171 <p>&nbsp;<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>
 175
 176 <p class="whs4">&nbsp;</p>
 177
 178 <p class="whs4">2. Click the <span style="font-weight: bold;"><B>Ok
 179  </B></span>or <span style="font-weight: bold;"><B>&nbsp;Apply
 180  </B></span>button to confirm creation of the group. </p>
 181
 182 <p>&nbsp;</p>
 183
 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. &nbsp;</p>
 187
 188 <p class="whs15">&nbsp;</p>
 189
 190 <p class="whs15">&nbsp;</p>
 191
 192 <p>&nbsp;</p>
 193
 194 <h3><a name=Intersection></a>Intersection of two groups</h3>
 195
 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
 198  one.</p>
 199
 200 <p>&nbsp;</p>
 201
 202 <p class=TODO>To intersect two groups:</p>
 203
 204 <p class=TODO>&nbsp;</p>
 205
 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>
 209
 210 <p class="whs4">&nbsp;</p>
 211
 212 <table x-use-null-cells cellspacing="0" width="100%" class="whs5">
 213 <col class="whs16">
 214 <col class="whs17">
 215
 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"> &nbsp;<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>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Group1
 222  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Group2
 223  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Group12a</p>
 224 <p>&nbsp;</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 &nbsp;&nbsp;</td></tr>
 228 </table>
 229
 230 <p>&nbsp;</p>
 231
 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>
 235
 236 <p class="whs4">&nbsp;</p>
 237
 238 <p class="whs4">2. Click the <span style="font-weight: bold;"><B>Ok
 239  </B></span>or <span style="font-weight: bold;"><B>&nbsp;Apply
 240  </B></span>button to confirm creation of the group. </p>
 241
 242 <p>&nbsp;</p>
 243
 244 <p>&nbsp;<span style="font-weight: bold;"><B>See
 245  Also</B></span> a sample TUI Script of an <a href="../grouping_elements.htm#bookmark3">&nbsp;Intersection
 246  of two Groups</a> operation. &nbsp;</p>
 247
 248 <p>&nbsp;</p>
 249
 250 <h3><a name=Cut></a>Cut of two groups</h3>
 251
 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>
 255
 256 <p>&nbsp;</p>
 257
 258 <p class=TODO>To cut two groups:</p>
 259
 260 <p class=TODO>&nbsp;</p>
 261
 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>
 265
 266 <p class="whs4">&nbsp;</p>
 267
 268 <table x-use-null-cells cellspacing="0" width="100%" class="whs5">
 269 <col class="whs21">
 270 <col class="whs22">
 271
 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"> &nbsp;&nbsp;<img src="../image134.gif" width="136px" height="151px" border="0" class="img_whs13"> &nbsp;<img src="../image137.gif" width="140px" height="146px" border="0" class="img_whs25"></p>
 277 <p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Group1
 278  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Group2
 279  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Group12b</p>
 280 <p>&nbsp;</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 &nbsp;&nbsp;</td></tr>
 284 </table>
 285
 286 <p>&nbsp;</p>
 287
 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>
 291
 292 <p class="whs4">&nbsp;</p>
 293
 294 <p class="whs4">2. Click the <span style="font-weight: bold;"><B>Ok
 295  </B></span>or <span style="font-weight: bold;"><B>&nbsp;Apply
 296  </B></span>button to confirm creation of the group. &nbsp;</p>
 297
 298 <p>&nbsp;</p>
 299
 300 <p>&nbsp;&nbsp;<span style="font-weight: bold;"><B>See
 301  Also</B></span> a sample TUI Script of a <a href="../grouping_elements.htm#bookmark3">&nbsp;Cut
 302  of two Groups</a> operation. &nbsp;</p>
 303
 304 <p>&nbsp;</p>
 305
 306 <p>&nbsp;</p>
 307
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