doc/salome/gui/SMESH/grouping_elements.htm

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  98 <h1>Grouping Elements</h1>\r
  99 \r
 100 <h3><a name=bookmark>Create a Standalone Group</a></h3>\r
 101 \r
 102 <p class="whs1">import SMESH_mechanic</p>\r
 103 \r
 104 <p class="whs1">&nbsp;</p>\r
 105 \r
 106 <p class="whs1">smesh &nbsp;= \r
 107  SMESH_mechanic.smesh</p>\r
 108 \r
 109 <p class="whs1">mesh &nbsp;&nbsp;= \r
 110  SMESH_mechanic.mesh</p>\r
 111 \r
 112 <p class="whs1">salome = SMESH_mechanic.salome</p>\r
 113 \r
 114 <p class="whs1">&nbsp;</p>\r
 115 \r
 116 <p class="whs2"># Get ids of all faces \r
 117  with area &gt; 100 </p>\r
 118 \r
 119 <p class="whs1">aFilter = smesh.GetFilter(smesh.FACE, \r
 120  smesh.FT_Area, smesh.FT_MoreThan, 100.)</p>\r
 121 \r
 122 <p class="whs1">&nbsp;</p>\r
 123 \r
 124 <p class="whs1">anIds = mesh.GetIdsFromFilter(aFilter) \r
 125  </p>\r
 126 \r
 127 <p class="whs1">&nbsp;</p>\r
 128 \r
 129 <p class="whs3"># create a group consisting \r
 130  of faces with area &gt; 100</p>\r
 131 \r
 132 <p class="whs1">&nbsp;</p>\r
 133 \r
 134 <p class="whs1">aGroup = mesh.MakeGroupByIds(&quot;Area \r
 135  &gt; 100&quot;, smesh.FACE, anIds)</p>\r
 136 \r
 137 <p class="whs1">&nbsp;</p>\r
 138 \r
 139 <p class="whs3"><span style="font-family: 'Lucida Console', monospace;">salome.sg.updateObjBrowser(1)</span> \r
 140  </p>\r
 141 \r
 142 <p class="whs3">&nbsp;</p>\r
 143 \r
 144 <p class="whs3"><img src="pics/create_group.png" x-maintain-ratio="TRUE" width="430px" height="391px" border="0" class="img_whs4"></p>\r
 145 \r
 146 <h3><a name=bookmark5>Create a Group on Geometry</a></h3>\r
 147 \r
 148 <p class="whs1">import salome</p>\r
 149 \r
 150 <p class="whs1">import geompy</p>\r
 151 \r
 152 <p class="whs1">import smesh</p>\r
 153 \r
 154 <p class="whs1">&nbsp;</p>\r
 155 \r
 156 <p class="whs2"># create a box</p>\r
 157 \r
 158 <p class="whs1">box = geompy.MakeBox(0., \r
 159  0., 0., 100., 100., 100.)</p>\r
 160 \r
 161 <p class="whs1">geompy.addToStudy(box, \r
 162  &quot;box&quot;)</p>\r
 163 \r
 164 <p class="whs1">&nbsp;</p>\r
 165 \r
 166 <p class="whs2"># add the first face \r
 167  of the box to the study</p>\r
 168 \r
 169 <p class="whs1"><span style="font-family: 'Lucida Console', monospace;">subShapeList \r
 170  = geompy.SubShapeAll(box, geompy.ShapeType[&quot;FACE&quot;])</span></p>\r
 171 \r
 172 <p class="whs1">face = subShapeList[0]</p>\r
 173 \r
 174 <p class="whs1">geompy.addToStudyInFather(box, \r
 175  face, &quot;face 1&quot;) </p>\r
 176 \r
 177 <p class="whs1">&nbsp;</p>\r
 178 \r
 179 <p class="whs2"># create group of edges \r
 180  on the face</p>\r
 181 \r
 182 <p class="whs1"><span style="font-family: 'Lucida Console', monospace;">aGeomGroupE \r
 183  = geompy.CreateGroup(face, geompy.ShapeType[&quot;EDGE&quot;])</span></p>\r
 184 \r
 185 <p class="whs1">geompy.AddObject(aGeomGroupE, \r
 186  3)</p>\r
 187 \r
 188 <p class="whs1">geompy.AddObject(aGeomGroupE, \r
 189  6)</p>\r
 190 \r
 191 <p class="whs1">geompy.AddObject(aGeomGroupE, \r
 192  8)</p>\r
 193 \r
 194 <p class="whs1">geompy.AddObject(aGeomGroupE, \r
 195  10)</p>\r
 196 \r
 197 <p class="whs1">geompy.addToStudyInFather(face, \r
 198  aGeomGroupE, &quot;Group of Edges&quot;)</p>\r
 199 \r
 200 <p class="whs1">&nbsp;</p>\r
 201 \r
 202 <p class="whs2"># create quadrangle \r
 203  2D mesh on the box</p>\r
 204 \r
 205 <p class="whs1"><span style="font-family: 'Lucida Console', monospace;">quadra \r
 206  = smesh.Mesh(box, &quot;Box : quadrangle 2D mesh&quot;)</span></p>\r
 207 \r
 208 <p class="whs1">algo1D = quadra.Segment()</p>\r
 209 \r
 210 <p class="whs1">quadra.Quadrangle()</p>\r
 211 \r
 212 <p class="whs1">algo1D.NumberOfSegments(7) \r
 213  </p>\r
 214 \r
 215 <p class="whs1">&nbsp;</p>\r
 216 \r
 217 <p class="whs2"># compute the mesh</p>\r
 218 \r
 219 <p class="whs1">quadra.Compute()</p>\r
 220 \r
 221 <p class="whs1">&nbsp;</p>\r
 222 \r
 223 <p class="whs2"># create SMESH group \r
 224  on the face with name &quot;SMESHGroup1&quot;</p>\r
 225 \r
 226 <p class="whs1"><span style="font-family: 'Lucida Console', monospace;">aSmeshGroup1 \r
 227  = quadra.GroupOnGeom(face, &quot;SMESHGroup1&quot;)</span></p>\r
 228 \r
 229 <p class="whs1">&nbsp;</p>\r
 230 \r
 231 <p class="whs2"># create SMESH group \r
 232  on &lt;aGeomGroupE&gt; with default name</p>\r
 233 \r
 234 <p class="whs1">aSmeshGroup2 = quadra.GroupOnGeom(aGeomGroupE) \r
 235  </p>\r
 236 \r
 237 <p class="whs3">&nbsp;</p>\r
 238 \r
 239 <p class="whs3"><span style="font-family: 'Lucida Console', monospace;">salome.sg.updateObjBrowser(1)</span> \r
 240  </p>\r
 241 \r
 242 <h3><a name=bookmark1>Edit a Group</a></h3>\r
 243 \r
 244 <p class="whs1">import SMESH_mechanic</p>\r
 245 \r
 246 <p class="whs1">&nbsp;</p>\r
 247 \r
 248 <p class="whs1">smesh &nbsp;= \r
 249  SMESH_mechanic.smesh</p>\r
 250 \r
 251 <p class="whs1">mesh &nbsp;&nbsp;= \r
 252  SMESH_mechanic.mesh</p>\r
 253 \r
 254 <p class="whs1">salome = SMESH_mechanic.salome</p>\r
 255 \r
 256 <p class="whs1">&nbsp;</p>\r
 257 \r
 258 <p class="whs2"># Get ids of all faces \r
 259  with area &gt; 35</p>\r
 260 \r
 261 <p class="whs1">aFilter = smesh.GetFilter(smesh.FACE, \r
 262  smesh.FT_Area, smesh.FT_MoreThan, 35.)</p>\r
 263 \r
 264 <p class="whs1">&nbsp;</p>\r
 265 \r
 266 <p class="whs1">anIds = mesh.GetIdsFromFilter(aFilter) \r
 267  </p>\r
 268 \r
 269 <p class="whs1">&nbsp;</p>\r
 270 \r
 271 <p class="whs1">print &quot;Criterion: \r
 272  Area &gt; 35, Nb = &quot;, len(anIds)</p>\r
 273 \r
 274 <p class="whs1">&nbsp;</p>\r
 275 \r
 276 <p class="whs2"># create a group by \r
 277  adding elements with area &gt; 35</p>\r
 278 \r
 279 <p class="whs1"><span style="font-family: 'Lucida Console', monospace;">aGroup \r
 280  = mesh.CreateEmptyGroup(smesh.FACE, &quot;Area &gt; 35&quot;)</span></p>\r
 281 \r
 282 <p class="whs1">aGroup.Add(anIds) \r
 283  </p>\r
 284 \r
 285 <p class="whs1">&nbsp;</p>\r
 286 \r
 287 <p class="whs2"># Get ids of all faces \r
 288  with area &gt; 40</p>\r
 289 \r
 290 <p class="whs1">aFilter = smesh.GetFilter(smesh.FACE, \r
 291  smesh.FT_Area, smesh.FT_MoreThan, 40.)</p>\r
 292 \r
 293 <p class="whs1">&nbsp;</p>\r
 294 \r
 295 <p class="whs1">anIds = mesh.GetIdsFromFilter(aFilter)</p>\r
 296 \r
 297 <p class="whs1">&nbsp;</p>\r
 298 \r
 299 <p class="whs1">print &quot;Criterion: \r
 300  Area &gt; 40, Nb = &quot;, len(anIds) </p>\r
 301 \r
 302 <p class="whs1">&nbsp;</p>\r
 303 \r
 304 <p class="whs2"># create a group of \r
 305  elements with area [35; 40] by removing elements with area &gt; 40 from \r
 306  group aGroup</p>\r
 307 \r
 308 <p class="whs1">aGroup.Remove(anIds) \r
 309  </p>\r
 310 \r
 311 <p class="whs1">&nbsp;</p>\r
 312 \r
 313 <p class="whs2"># print the result</p>\r
 314 \r
 315 <p class="whs1">aGroupElemIDs = \r
 316  aGroup.GetListOfID()</p>\r
 317 \r
 318 <p class="whs1">&nbsp;</p>\r
 319 \r
 320 <p class="whs1">print &quot;Criterion: \r
 321  35 &lt; Area &lt; 40, Nb = &quot;, len(aGroupElemIDs)</p>\r
 322 \r
 323 <p class="whs1">j = 1</p>\r
 324 \r
 325 <p class="whs1">for i in range(len(aGroupElemIDs)):</p>\r
 326 \r
 327 <p class="whs1">&nbsp;&nbsp;if \r
 328  j &gt; 20: j = 1; print &quot;&quot;</p>\r
 329 \r
 330 <p class="whs1">&nbsp;&nbsp;print \r
 331  aGroupElemIDs[i],</p>\r
 332 \r
 333 <p class="whs1">&nbsp;&nbsp;j \r
 334  = j + 1</p>\r
 335 \r
 336 <p class="whs1">&nbsp;&nbsp;pass</p>\r
 337 \r
 338 <p class="whs1">print &quot;&quot;</p>\r
 339 \r
 340 <p class="whs1">&nbsp;</p>\r
 341 \r
 342 <p class="whs1">salome.sg.updateObjBrowser(1) \r
 343  </p>\r
 344 \r
 345 <p class="whs3">&nbsp;</p>\r
 346 \r
 347 <p class="whs3"><img src="pics/editing_groups1.png" x-maintain-ratio="TRUE" width="463px" height="417px" border="0" class="img_whs5"> &nbsp;<img src="pics/editing_groups2.png" x-maintain-ratio="TRUE" width="541px" height="417px" border="0" class="img_whs6"></p>\r
 348 \r
 349 <h3><a name=bookmark2>Union of two groups</a></h3>\r
 350 \r
 351 <p class="whs1">import SMESH_mechanic</p>\r
 352 \r
 353 <p class="whs1">&nbsp;</p>\r
 354 \r
 355 <p class="whs1">smesh &nbsp;= \r
 356  SMESH_mechanic.smesh</p>\r
 357 \r
 358 <p class="whs1">mesh &nbsp;&nbsp;= \r
 359  SMESH_mechanic.mesh</p>\r
 360 \r
 361 <p class="whs1">salome = SMESH_mechanic.salome</p>\r
 362 \r
 363 <p class="whs1">&nbsp;</p>\r
 364 \r
 365 <p class="whs2"># Criterion : AREA \r
 366  &gt; 20</p>\r
 367 \r
 368 <p class="whs1">aFilter = smesh.GetFilter(smesh.FACE, \r
 369  smesh.FT_Area, smesh.FT_MoreThan, 20.)</p>\r
 370 \r
 371 <p class="whs1">&nbsp;</p>\r
 372 \r
 373 <p class="whs1">anIds = mesh.GetIdsFromFilter(aFilter)</p>\r
 374 \r
 375 <p class="whs1">&nbsp;</p>\r
 376 \r
 377 <p class="whs1">print &quot;Criterion: \r
 378  Area &gt; 20, Nb = &quot;, len( anIds ) </p>\r
 379 \r
 380 <p class="whs1">&nbsp;</p>\r
 381 \r
 382 <p class="whs2"># create a group by \r
 383  adding elements with area &gt; 20</p>\r
 384 \r
 385 <p class="whs1">aGroup1 = mesh.CreateGroup(SMESH.FACE, \r
 386  &quot;Area &gt; 20&quot;)</p>\r
 387 \r
 388 <p class="whs1">aGroup1.Add(anIds)</p>\r
 389 \r
 390 <p class="whs1">&nbsp;</p>\r
 391 \r
 392 <p class="whs2"># Criterion : AREA \r
 393  = 20</p>\r
 394 \r
 395 <p class="whs1"><span style="font-family: 'Lucida Console', monospace;">aFilter \r
 396  = smesh.GetFilter(smesh.FACE, smesh.FT_Area, smesh.FT_EqualTo, 20.)</span></p>\r
 397 \r
 398 <p class="whs1">&nbsp;</p>\r
 399 \r
 400 <p class="whs1">anIds = mesh.GetIdsFromFilter(aFilter)</p>\r
 401 \r
 402 <p class="whs1">&nbsp;</p>\r
 403 \r
 404 <p class="whs1">print &quot;Criterion: \r
 405  Area = 20, Nb = &quot;, len( anIds ) </p>\r
 406 \r
 407 <p class="whs1">&nbsp;</p>\r
 408 \r
 409 <p class="whs2"># create a group by \r
 410  adding elements with area = 20</p>\r
 411 \r
 412 <p class="whs1">aGroup2 = mesh.CreateEmptyGroup( \r
 413  smesh.FACE, &quot;Area = 20&quot; )</p>\r
 414 \r
 415 <p class="whs1">&nbsp;</p>\r
 416 \r
 417 <p class="whs1">aGroup2.Add(anIds)</p>\r
 418 \r
 419 <p class="whs1">&nbsp;</p>\r
 420 \r
 421 <p class="whs2"># create union group \r
 422  : area &gt;= 20</p>\r
 423 \r
 424 <p class="whs1"><span style="font-family: 'Lucida Console', monospace;">aGroup3 \r
 425  = mesh.UnionGroups(aGroup1, aGroup2, &quot;Area &gt;= 20&quot;)</span></p>\r
 426 \r
 427 <p class="whs1">print &quot;Criterion: \r
 428  Area &gt;= 20, Nb = &quot;, len(aGroup3.GetListOfID())</p>\r
 429 \r
 430 <p class="whs1">&nbsp;</p>\r
 431 \r
 432 <p class="whs2"># Criterion : AREA \r
 433  &lt; 20</p>\r
 434 \r
 435 <p class="whs1"><span style="font-family: 'Lucida Console', monospace;">aFilter \r
 436  = smesh.GetFilter(smesh.FACE, smesh.FT_Area, smesh.FT_LessThan, 20.)</span></p>\r
 437 \r
 438 <p class="whs1">&nbsp;</p>\r
 439 \r
 440 <p class="whs1">anIds = mesh.GetIdsFromFilter(aFilter)</p>\r
 441 \r
 442 <p class="whs1">&nbsp;</p>\r
 443 \r
 444 <p class="whs1">print &quot;Criterion: \r
 445  Area &lt; 20, Nb = &quot;, len(anIds)</p>\r
 446 \r
 447 <p class="whs1">&nbsp;</p>\r
 448 \r
 449 <p class="whs2"># create a group by \r
 450  adding elements with area &lt; 20</p>\r
 451 \r
 452 <p class="whs1"><span style="font-family: 'Lucida Console', monospace;">aGroup4 \r
 453  = mesh.CreateEmptyGroup(smesh.FACE, &quot;Area &lt; 20&quot;)</span></p>\r
 454 \r
 455 <p class="whs1">aGroup4.Add(anIds)</p>\r
 456 \r
 457 <p class="whs1">&nbsp;</p>\r
 458 \r
 459 <p class="whs2"># create union group \r
 460  : area &gt;= 20 and area &lt; 20</p>\r
 461 \r
 462 <p class="whs1"><span style="font-family: 'Lucida Console', monospace;">aGroup5 \r
 463  = mesh.UnionGroups(aGroup3, aGroup4, &quot;Any Area&quot;)</span></p>\r
 464 \r
 465 <p class="whs1">print &quot;Criterion: \r
 466  Any Area, Nb = &quot;, len(aGroup5.GetListOfID())</p>\r
 467 \r
 468 <p class="whs1">&nbsp;</p>\r
 469 \r
 470 <p class="whs1">salome.sg.updateObjBrowser(1) \r
 471  </p>\r
 472 \r
 473 <p class="whs1">&nbsp;</p>\r
 474 \r
 475 <p class="whs1"><img src="pics/union_groups1.png" x-maintain-ratio="TRUE" width="394px" height="425px" border="0" class="img_whs7"></p>\r
 476 \r
 477 <p class="whs1">&nbsp;</p>\r
 478 \r
 479 <p class="whs1"><img src="pics/union_groups2.png" x-maintain-ratio="TRUE" width="368px" height="379px" border="0" class="img_whs8"> <img src="pics/union_groups3.png" x-maintain-ratio="TRUE" width="344px" height="381px" border="0" class="img_whs9"></p>\r
 480 \r
 481 <p class="whs1">&nbsp;</p>\r
 482 \r
 483 <h3><a name=bookmark3>Intersection of two groups</a></h3>\r
 484 \r
 485 <p class="whs1">import SMESH_mechanic</p>\r
 486 \r
 487 <p class="whs1">&nbsp;</p>\r
 488 \r
 489 <p class="whs1">smesh &nbsp;= \r
 490  SMESH_mechanic.smesh</p>\r
 491 \r
 492 <p class="whs1">mesh &nbsp;&nbsp;= \r
 493  SMESH_mechanic.mesh</p>\r
 494 \r
 495 <p class="whs1">salome = SMESH_mechanic.salome</p>\r
 496 \r
 497 <p class="whs1">&nbsp;</p>\r
 498 \r
 499 <p class="whs2"># Criterion : AREA \r
 500  &gt; 20</p>\r
 501 \r
 502 <p class="whs1">aFilter = smesh.GetFilter(smesh.FACE, \r
 503  smesh.FT_Area, smesh.FT_MoreThan, 20.)</p>\r
 504 \r
 505 <p class="whs1">&nbsp;</p>\r
 506 \r
 507 <p class="whs1">anIds = mesh.GetIdsFromFilter(aFilter)</p>\r
 508 \r
 509 <p class="whs1">&nbsp;</p>\r
 510 \r
 511 <p class="whs1">print &quot;Criterion: \r
 512  Area &gt; 20, Nb = &quot;, len(anIds) </p>\r
 513 \r
 514 <p class="whs1">&nbsp;</p>\r
 515 \r
 516 <p class="whs2"># create a group by \r
 517  adding elements with area &gt; 20</p>\r
 518 \r
 519 <p class="whs1">aGroup1 = mesh.CreateGroup(SMESH.FACE, \r
 520  &quot;Area &gt; 20&quot;)</p>\r
 521 \r
 522 <p class="whs1">aGroup1.Add(anIds)</p>\r
 523 \r
 524 <p class="whs1">&nbsp;</p>\r
 525 \r
 526 <p class="whs2"># Criterion : AREA \r
 527  &lt; 60</p>\r
 528 \r
 529 <p class="whs1">aFilter = smesh.GetFilter(smesh.FACE, \r
 530  smesh.FT_Area, smesh.FT_LessThan, 60.)</p>\r
 531 \r
 532 <p class="whs1">&nbsp;</p>\r
 533 \r
 534 <p class="whs1">anIds = mesh.GetIdsFromFilter(aFilter)</p>\r
 535 \r
 536 <p class="whs1">&nbsp;</p>\r
 537 \r
 538 <p class="whs1">print &quot;Criterion: \r
 539  Area &lt; 60, Nb = &quot;, len(anIds) </p>\r
 540 \r
 541 <p class="whs1">&nbsp;</p>\r
 542 \r
 543 <p class="whs2"># create a group by \r
 544  adding elements with area &lt; 60</p>\r
 545 \r
 546 <p class="whs1">aGroup2 = mesh.CreateGroup(SMESH.FACE, \r
 547  &quot;Area &lt; 60&quot;)</p>\r
 548 \r
 549 <p class="whs1">aGroup2.Add(anIds)</p>\r
 550 \r
 551 <p class="whs1">&nbsp;</p>\r
 552 \r
 553 <p class="whs2"># create an intersection \r
 554  of groups : 20 &lt; area &lt; 60</p>\r
 555 \r
 556 <p class="whs1"><span style="font-family: 'Lucida Console', monospace;">aGroup3 \r
 557  = mesh.IntersectGroups(aGroup1, aGroup2, &quot;20 &lt; Area &lt; 60&quot;)</span></p>\r
 558 \r
 559 <p class="whs1">print &quot;Criterion: \r
 560  20 &lt; Area &lt; 60, Nb = &quot;, len(aGroup3.GetListOfID())</p>\r
 561 \r
 562 <p class="whs1">&nbsp;</p>\r
 563 \r
 564 <p class="whs1">salome.sg.updateObjBrowser(1) \r
 565  </p>\r
 566 \r
 567 <p class="whs3">&nbsp;</p>\r
 568 \r
 569 <p class="whs3"><img src="pics/intersect_groups1.png" x-maintain-ratio="TRUE" width="314px" height="351px" border="0" class="img_whs10"> &nbsp;<img src="pics/intersect_groups2.png" x-maintain-ratio="TRUE" width="319px" height="351px" border="0" class="img_whs11"> &nbsp;<img src="pics/intersect_groups3.png" x-maintain-ratio="TRUE" width="304px" height="352px" border="0" class="img_whs12"></p>\r
 570 \r
 571 <h3><a name=bookmark4>Cut of two groups</a></h3>\r
 572 \r
 573 <p class="whs1">import SMESH_mechanic</p>\r
 574 \r
 575 <p class="whs1">&nbsp;</p>\r
 576 \r
 577 <p class="whs1">smesh &nbsp;= \r
 578  SMESH_mechanic.smesh</p>\r
 579 \r
 580 <p class="whs1">mesh &nbsp;&nbsp;= \r
 581  SMESH_mechanic.mesh</p>\r
 582 \r
 583 <p class="whs1">salome = SMESH_mechanic.salome</p>\r
 584 \r
 585 <p class="whs1">&nbsp;</p>\r
 586 \r
 587 <p class="whs2"># Criterion : AREA \r
 588  &gt; 20</p>\r
 589 \r
 590 <p class="whs1">aFilter = smesh.GetFilter(smesh.FACE, \r
 591  smesh.FT_Area, smesh.FT_MoreThan, 20.)</p>\r
 592 \r
 593 <p class="whs1">&nbsp;</p>\r
 594 \r
 595 <p class="whs1">anIds = mesh.GetIdsFromFilter(aFilter)</p>\r
 596 \r
 597 <p class="whs1">&nbsp;</p>\r
 598 \r
 599 <p class="whs1">print &quot;Criterion: \r
 600  Area &gt; 20, Nb = &quot;, len(anIds) </p>\r
 601 \r
 602 <p class="whs1">&nbsp;</p>\r
 603 \r
 604 <p class="whs2"># create a group by \r
 605  adding elements with area &gt; 20</p>\r
 606 \r
 607 <p class="whs1"><span style="font-family: 'Lucida Console', monospace;">aGroupMain \r
 608  = mesh.MakeGroupByIds(&quot;Area &gt; 20&quot;, smesh.FACE, anIds)</span></p>\r
 609 \r
 610 <p class="whs1">&nbsp;</p>\r
 611 \r
 612 <p class="whs2"># Criterion : AREA \r
 613  &lt; 60</p>\r
 614 \r
 615 <p class="whs1">aFilter = smesh.GetFilter(smesh.FACE, \r
 616  smesh.FT_Area, smesh.FT_LessThan, 60.)</p>\r
 617 \r
 618 <p class="whs1">&nbsp;</p>\r
 619 \r
 620 <p class="whs1">anIds = mesh.GetIdsFromFilter(aFilter)</p>\r
 621 \r
 622 <p class="whs1">&nbsp;</p>\r
 623 \r
 624 <p class="whs1">print &quot;Criterion: \r
 625  Area &lt; 60, Nb = &quot;, len(anIds) </p>\r
 626 \r
 627 <p class="whs1">&nbsp;</p>\r
 628 \r
 629 <p class="whs2"># create a group by \r
 630  adding elements with area &lt; 60</p>\r
 631 \r
 632 <p class="whs1"><span style="font-family: 'Lucida Console', monospace;">aGroupTool \r
 633  = mesh.MakeGroupByIds(&quot;Area &lt; 60&quot;, smesh.FACE, anIds)</span></p>\r
 634 \r
 635 <p class="whs1">&nbsp;</p>\r
 636 \r
 637 <p class="whs2"># create a cut of groups \r
 638  : area &gt;= 60</p>\r
 639 \r
 640 <p class="whs1"><span style="font-family: 'Lucida Console', monospace;">aGroupRes \r
 641  = mesh.CutGroups(aGroupMain, aGroupTool, &quot;Area &gt;= 60&quot;)</span></p>\r
 642 \r
 643 <p class="whs1">print &quot;Criterion: \r
 644  Area &gt;= 60, Nb = &quot;, len(aGroupRes.GetListOfID())</p>\r
 645 \r
 646 <p class="whs1">&nbsp;</p>\r
 647 \r
 648 <p class="whs1">salome.sg.updateObjBrowser(1) \r
 649  </p>\r
 650 \r
 651 <p class="whs1">&nbsp;</p>\r
 652 \r
 653 <p class="whs3"><img src="pics/cut_groups1.png" x-maintain-ratio="TRUE" width="318px" height="355px" border="0" class="img_whs13"> &nbsp;<img src="pics/cut_groups2.png" x-maintain-ratio="TRUE" width="318px" height="355px" border="0" class="img_whs14"> &nbsp;<img src="pics/cut_groups3.png" x-maintain-ratio="TRUE" width="320px" height="354px" border="0" class="img_whs15"></p>\r
 654 \r
 655 <script type="text/javascript" language="javascript1.2">\r
 656 <!--\r
 657 if (window.writeIntopicBar)\r
 658         writeIntopicBar(0);\r
 659 //-->\r
 660 </script>\r
 661 </body>\r
 662 </html>\r