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

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 113 </script>
 114 <h1>Creating groups</h1>
 115
 116 <p class="whs1"><img src="../i_blue.jpg" x-maintain-ratio="TRUE" width="30px" height="30px" border="0" class="img_whs2"> &nbsp;&nbsp;<span
 117  style="font-weight: normal;">In MESH you
 118  can create groups of elements of different types. To create a group of
 119  elements</span><span style="font-weight: normal; margin-left: 40px;">
 120  in the </span><span style="margin-left: 40px;">Mesh</span><span style="font-weight: normal; margin-left: 40px;">
 121  menu select </span><span style="margin-left: 40px;">Create Group</span><span
 122  style="font-weight: normal; margin-left: 40px;">.</span><span style="margin-left: 40px;">
 123  </span></p>
 124
 125 <p class="whs3">To create any group
 126  you should define the following: &nbsp;&nbsp;</p>
 127
 128 <ul type="disc" class="whs4">
 129
 130         <li class=kadov-p><p class="whs5">Mesh:
 131  <span style="font-weight: normal;">the name of the mesh whose elements
 132  will form your group. You can select your mesh in the Objet Browser or
 133  in the 3D viewer.</span></p></li>
 134
 135         <li class=kadov-p><p class="whs3"><span
 136  style="font-weight: bold;"><B>Elements</B></span> <span style="font-weight: bold;"><B>Type</B></span>
 137  set of radio buttons allows to select the type of elements which will
 138  form your group:</p></li>
 139
 140         <ul type="disc" class="whs4">
 141
 142                 <li class=kadov-p><p class="whs6">Nodes</p></li>
 143
 144                 <li class=kadov-p><p class="whs6">Edges
 145  </p></li>
 146
 147                 <li class=kadov-p><p class="whs6">Faces</p></li>
 148
 149                 <li class=kadov-p><p class="whs6">Volumes</p></li>
 150         </ul>
 151
 152         <li class=kadov-p><p class="whs3"><span
 153  style="font-weight: bold;"><B>Name </B></span>field allows to enter the name
 154  of your new group.</p></li>
 155 </ul>
 156
 157 <p class="whs3">SALOME Platform distinguishes
 158  between the two Group types: <span style="font-weight: bold;"><B>Standalone
 159  Group</B></span> and <span style="font-weight: bold;"><B>Group on Geometry</B></span>.
 160  &nbsp;</p>
 161
 162 <h3>Standalone Group </h3>
 163
 164 <p class="whs7"><span style="font-weight: bold;"><B>Standalone
 165  Group</B></span> consists of mesh elements, which you can define in two possible
 166  ways.</p>
 167
 168 <ul type="disc" class="whs4">
 169
 170         <li class=kadov-p><p class="whs8">Choosing them manually
 171  with the mouse in the 3D Viewer. You can click on an element in the 3D
 172  viewer and it will be highlighted. After that click the <span style="font-weight: bold;"><B>Add
 173  </B></span>button and the ID of this element will be added to the list. </p></li>
 174
 175         <li class=kadov-p><p class="whs7">Applying Filters. The
 176  <span style="font-weight: bold;"><B>Set filter </B></span>button allows to apply
 177  a definite filter to selection of the elements of your group. See more
 178  about filters on the <a href="../selection_filter_library.htm">Selection
 179  filter library</a> page. &nbsp;&nbsp;</p></li>
 180 </ul>
 181
 182 <p class="whs7">To remove a selected element or elements
 183  from the list click the <span style="font-weight: bold;"><B>Remove </B></span>button.
 184  The <span style="font-weight: bold;"><B>Sort List </B></span>button allows to
 185  sort the list of IDs of mesh elements. </p>
 186
 187 <p class="whs7"><span style="font-weight: bold;"><B>Select from
 188  </B></span>set of fields allows to choose a submesh or an existing group whose
 189  elements of the previously defined type will be added to the list of elements
 190  which will form your group. </p>
 191
 192 <p class="whs7"><span style="font-weight: bold;"><B>Color Number</B></span>
 193  (integer only, ranging from 0 to 9999) - allows to assign to the group
 194  a certain index, for example, defining boundary conditions. This feature
 195  introduces a useful element of preprocessing in Mesh module. Note that
 196  <span style="font-weight: bold;"><B>Color number</B></span> attribute has nothing
 197  to do with the colors used for the display of the elements of the group.</p>
 198
 199 <p class="whs7">&nbsp;</p>
 200
 201 <table x-use-null-cells cellspacing="0" width="100%" class="whs9">
 202 <col class="whs10">
 203 <col class="whs11">
 204
 205 <tr valign="top" class="whs12">
 206 <td width="33.382%" class="whs13">
 207 <p class="whs1"><img src="../pics/creategroup.png" x-maintain-ratio="TRUE" width="312px" height="621px" border="0" class="img_whs14"></td>
 208 <td width="66.618%" class="whs15">
 209 <p class="whs16"><img src="../image130.gif" width="145px" height="150px" align="left" border="0" class="img_whs17"> &nbsp;&nbsp;</p>
 210 <p class="whs16">&nbsp;</p>
 211 <p class="whs16">&nbsp;</p>
 212 <p class="whs16">&nbsp;</p>
 213 <p class="whs16">&nbsp;</p>
 214 <p class="whs16">&nbsp;</p>
 215 <p class="whs16">In this picture the brown cells belong to
 216  a group defined manually.</p>
 217 <p class="whs16">&nbsp;</p>
 218 <p class="whs16">&nbsp;<img src="../image131.gif" width="149px" height="158px" border="0" class="img_whs18"> In this picture the brown cells belong to the group defined
 219  by the criterion <br>
 220 Taper &gt; 0. </p>
 221 <p class="whs16">&nbsp;</p>
 222 <p class="whs16">&nbsp;</td></tr>
 223 </table>
 224
 225 <p class="whs7">&nbsp;</p>
 226
 227 <p class="whs5">&nbsp;&nbsp;&nbsp;See
 228  Also a sample TUI Script of a <a href="../grouping_elements.htm#bookmark">Create
 229  a Standalone Group</a> operation. &nbsp;</p>
 230
 231 <h3>Group on Geometry </h3>
 232
 233 <p class="whs3">To create a group on
 234  geometry check <span style="font-weight: bold;"><B>Group on geometry</B></span>
 235  in the <span style="font-weight: bold;"><B>Group type</B></span> field. <span
 236  style="font-weight: bold;"><B>Group on geometry </B></span>contains the elements
 237  of a certain type belonging to the selected<span style="font-weight: bold;">
 238  <B></B></span>geometrical object. To define a group select in the Objet Browser
 239  or in the 3D viewer a geometrical object from which the elements will
 240  be taken. After confirmation of the operation a new group of mesh elements
 241  will be created.</p>
 242
 243 <p class="whs3">&nbsp;</p>
 244
 245 <table x-use-null-cells cellspacing="0" width="100%" class="whs9">
 246 <col class="whs19">
 247 <col class="whs20">
 248
 249 <tr valign="top" class="whs21">
 250 <td width="33.48%" class="whs22">
 251 <p><img src="../pics/a-creategroup.png" x-maintain-ratio="TRUE" width="312px" height="312px" border="0" class="img_whs23"></td>
 252 <td width="66.52%" class="whs24">
 253 <p><img src="../image132.gif" width="135px" height="150px" border="0" class="img_whs25"> In this picture the cells which belong to a certain face
 254  are selected in green. </td></tr>
 255 </table>
 256
 257 <p class="whs3">&nbsp;</p>
 258
 259 <p class="whs6">&nbsp;&nbsp;&nbsp;See
 260  Also a sample TUI Script of a <a href="../grouping_elements.htm#bookmark5">Create
 261  a Group on Geometry</a><a href="../grouping_elements.htm#bookmark"> </a>operation.
 262  &nbsp;</p>
 263
 264 <p>&nbsp;</p>
 265
 266 <p>&nbsp;</p>
 267
 268 <p class="whs16">&nbsp;</p>
 269
 270 <p class="whs26">&nbsp;</p>
 271
 272 <p>&nbsp;</p>
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