doc/salome/gui/SMESH/grouping_elements.htm

   1 <!doctype HTML public "-//W3C//DTD HTML 4.0 Frameset//EN">\r
   2 \r
   3 <html>\r
   4 \r
   5 <head>\r
   6 <title>Grouping Elements</title>\r
   7 <meta http-equiv="content-type" content="text/html; charset=windows-1252">\r
   8 <meta name="generator" content="RoboHelp by eHelp Corporation www.ehelp.com"><style type="text/css">\r
   9 <!--\r
  10 p.whs1 { margin-top:0pt; margin-bottom:0pt; font-family:'Lucida Console' , monospace; }\r
  11 p.whs2 { margin-top:0pt; margin-bottom:0pt; }\r
  12 img_whs3 { border:none; width:430px; height:391px; float:none; border-style:none; }\r
  13 img_whs4 { border:none; float:none; width:463px; height:417px; border-style:none; }\r
  14 img_whs5 { border:none; width:541px; height:417px; float:none; border-style:none; }\r
  15 img_whs6 { border:none; width:394px; height:425px; float:none; border-style:none; }\r
  16 img_whs7 { border:none; float:none; width:368px; height:379px; border-style:none; }\r
  17 img_whs8 { border:none; float:none; width:344px; height:381px; border-style:none; }\r
  18 img_whs9 { border:none; width:314px; height:351px; float:none; border-style:none; }\r
  19 img_whs10 { border:none; float:none; width:319px; height:351px; border-style:none; }\r
  20 img_whs11 { border:none; float:none; width:304px; height:352px; border-style:none; }\r
  21 img_whs12 { border:none; width:318px; height:355px; float:none; border-style:none; }\r
  22 img_whs13 { border:none; float:none; width:318px; height:355px; border-style:none; }\r
  23 img_whs14 { border:none; float:none; width:320px; height:354px; border-style:none; }\r
  24 -->\r
  25 </style><script type="text/javascript" language="JavaScript">\r
  26 <!--\r
  27 if ((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) == 4))\r
  28 {\r
  29   var strNSS = "<style type='text/css'>";\r
  30   strNSS += "p.whs1 {margin-top:1pt;margin-bottom:1pt; }";\r
  31   strNSS += "p.whs2 {margin-top:1pt;margin-bottom:1pt; }";\r
  32   strNSS +="</style>";\r
  33   document.write(strNSS);\r
  34 }\r
  35 //-->\r
  36 </script>\r
  37 <script type="text/javascript" language="JavaScript" title="WebHelpInlineScript">\r
  38 <!--\r
  39 function reDo() {\r
  40   if (innerWidth != origWidth || innerHeight != origHeight)\r
  41      location.reload();\r
  42 }\r
  43 if ((parseInt(navigator.appVersion) == 4) && (navigator.appName == "Netscape")) {\r
  44         origWidth = innerWidth;\r
  45         origHeight = innerHeight;\r
  46         onresize = reDo;\r
  47 }\r
  48 onerror = null; \r
  49 //-->\r
  50 </script>\r
  51 <style type="text/css">\r
  52 <!--\r
  53 div.WebHelpPopupMenu { position:absolute; left:0px; top:0px; z-index:4; visibility:hidden; }\r
  54 p.WebHelpNavBar { text-align:right; }\r
  55 -->\r
  56 </style><script type="text/javascript" language="javascript1.2" src="whmsg.js"></script>\r
  57 <script type="text/javascript" language="javascript" src="whver.js"></script>\r
  58 <script type="text/javascript" language="javascript1.2" src="whproxy.js"></script>\r
  59 <script type="text/javascript" language="javascript1.2" src="whutils.js"></script>\r
  60 <script type="text/javascript" language="javascript1.2" src="whtopic.js"></script>\r
  61 <script type="text/javascript" language="javascript1.2">\r
  62 <!--\r
  63 if (window.gbWhTopic)\r
  64 {\r
  65         if (window.setRelStartPage)\r
  66         {\r
  67         addTocInfo("MESH module\nTUI Scripts\nGrouping Elements");\r
  68 addButton("show",BTN_IMG,"Show","","","","",0,0,"whd_show0.gif","whd_show2.gif","whd_show1.gif");\r
  69 addButton("hide",BTN_IMG,"Hide","","","","",0,0,"whd_hide0.gif","whd_hide2.gif","whd_hide1.gif");\r
  70 \r
  71         }\r
  72 \r
  73 \r
  74         if (window.setRelStartPage)\r
  75         {\r
  76         setRelStartPage("index.htm");\r
  77 \r
  78                 autoSync(1);\r
  79                 sendSyncInfo();\r
  80                 sendAveInfoOut();\r
  81         }\r
  82 \r
  83 }\r
  84 else\r
  85         if (window.gbIE4)\r
  86                 document.location.reload();\r
  87 //-->\r
  88 </script>\r
  89 </head>\r
  90 <body><script type="text/javascript" language="javascript1.2">\r
  91 <!--\r
  92 if (window.writeIntopicBar)\r
  93         writeIntopicBar(4);\r
  94 //-->\r
  95 </script>\r
  96 <h1>Grouping Elements</h1>\r
  97 \r
  98 <h3><a name=bookmark>Create a Standalone Group</a></h3>\r
  99 \r
 100 <p class="whs1">&nbsp;</p>\r
 101 \r
 102 <p class="whs1">import SMESH</p>\r
 103 \r
 104 <p class="whs1">import SMESH_mechanic</p>\r
 105 \r
 106 <p class="whs1">&nbsp;</p>\r
 107 \r
 108 <p class="whs1">smesh &nbsp;= \r
 109  SMESH_mechanic.smesh</p>\r
 110 \r
 111 <p class="whs1">mesh &nbsp;&nbsp;= \r
 112  SMESH_mechanic.mesh</p>\r
 113 \r
 114 <p class="whs1">salome = SMESH_mechanic.salome</p>\r
 115 \r
 116 <p class="whs1">&nbsp;</p>\r
 117 \r
 118 <p class="whs1">aFilterMgr = smesh.CreateFilterManager()</p>\r
 119 \r
 120 <p class="whs1">&nbsp;</p>\r
 121 \r
 122 <p class="whs2"># Criterion : AREA &gt; \r
 123  100</p>\r
 124 \r
 125 <p class="whs1">&nbsp;</p>\r
 126 \r
 127 <p class="whs1">aFunctor = aFilterMgr.CreateArea()</p>\r
 128 \r
 129 <p class="whs1">aPredicate = aFilterMgr.CreateMoreThan()</p>\r
 130 \r
 131 <p class="whs1">aPredicate.SetNumFunctor( \r
 132  aFunctor )</p>\r
 133 \r
 134 <p class="whs1">aPredicate.SetMargin( \r
 135  100 )</p>\r
 136 \r
 137 <p class="whs1">&nbsp;</p>\r
 138 \r
 139 <p class="whs1">aFilter = aFilterMgr.CreateFilter()</p>\r
 140 \r
 141 <p class="whs1">aFilter.SetPredicate( \r
 142  aPredicate )</p>\r
 143 \r
 144 <p class="whs1">&nbsp;</p>\r
 145 \r
 146 <p class="whs1">anIds = aFilter.GetElementsId( \r
 147  mesh )</p>\r
 148 \r
 149 <p class="whs2">&nbsp;</p>\r
 150 \r
 151 <p class="whs2"># print the result</p>\r
 152 \r
 153 <p class="whs1">print &quot;Criterion: \r
 154  Area &gt; 100 Nb = &quot;, len( anIds )</p>\r
 155 \r
 156 <p class="whs1">for i in range( \r
 157  len( anIds ) ):</p>\r
 158 \r
 159 <p class="whs1">&nbsp;&nbsp;print \r
 160  anIds[ i ]</p>\r
 161 \r
 162 <p class="whs1">&nbsp;</p>\r
 163 \r
 164 <p class="whs2"># create a group consisting \r
 165  of faces with area &gt; 100</p>\r
 166 \r
 167 <p class="whs1">aGroup = mesh.CreateGroup( \r
 168  SMESH.FACE, &quot;Area &gt; 100&quot; )</p>\r
 169 \r
 170 <p class="whs1">aGroup.Add( anIds \r
 171  )</p>\r
 172 \r
 173 <p class="whs1">&nbsp;</p>\r
 174 \r
 175 <p class="whs2"><span style="font-family: 'Lucida Console', monospace;">salome.sg.updateObjBrowser(1)</span> \r
 176  </p>\r
 177 \r
 178 <p class="whs2">&nbsp;</p>\r
 179 \r
 180 <p class="whs2"><img src="pics/create_group.png" x-maintain-ratio="TRUE" width="430px" height="391px" border="0" class="img_whs3"></p>\r
 181 \r
 182 <h3><a name=bookmark5>Create a Group on Geometry</a></h3>\r
 183 \r
 184 <p class="whs1">import salome</p>\r
 185 \r
 186 <p class="whs1">import geompy</p>\r
 187 \r
 188 <p class="whs1">&nbsp;</p>\r
 189 \r
 190 <p class="whs1">import SMESH</p>\r
 191 \r
 192 <p class="whs1">import StdMeshers</p>\r
 193 \r
 194 <p class="whs1">&nbsp;</p>\r
 195 \r
 196 <p class="whs1">smesh = salome.lcc.FindOrLoadComponent(&quot;FactoryServer&quot;, \r
 197  &quot;SMESH&quot;)</p>\r
 198 \r
 199 <p class="whs2">&nbsp;</p>\r
 200 \r
 201 <p class="whs2"># create a box</p>\r
 202 \r
 203 <p class="whs1">box = geompy.MakeBox(0., \r
 204  0., 0., 100., 100., 100.)</p>\r
 205 \r
 206 <p class="whs2">&nbsp;</p>\r
 207 \r
 208 <p class="whs2"># add the box to the study</p>\r
 209 \r
 210 <p class="whs1">idbox = geompy.addToStudy(box, \r
 211  &quot;box&quot;)</p>\r
 212 \r
 213 <p class="whs2">&nbsp;</p>\r
 214 \r
 215 <p class="whs2"># add the first face of \r
 216  the box to the study</p>\r
 217 \r
 218 <p class="whs1">subShapeList = geompy.SubShapeAll(box, \r
 219  geompy.ShapeType[&quot;FACE&quot;])</p>\r
 220 \r
 221 <p class="whs1">face = subShapeList[0]</p>\r
 222 \r
 223 <p class="whs1">name = geompy.SubShapeName(face, \r
 224  box)</p>\r
 225 \r
 226 <p class="whs1">idface = geompy.addToStudyInFather(box, \r
 227  face, name)</p>\r
 228 \r
 229 <p class="whs2">&nbsp;</p>\r
 230 \r
 231 <p class="whs2"># create a hypothesis</p>\r
 232 \r
 233 <p class="whs1">numberOfSegments \r
 234  = 7</p>\r
 235 \r
 236 <p class="whs1">hypNbSeg = smesh.CreateHypothesis(&quot;NumberOfSegments&quot;, \r
 237  &quot;libStdMeshersEngine.so&quot;)</p>\r
 238 \r
 239 <p class="whs1">hypNbSeg.SetNumberOfSegments(numberOfSegments)</p>\r
 240 \r
 241 <p class="whs2">&nbsp;</p>\r
 242 \r
 243 <p class="whs2"># create algorithms</p>\r
 244 \r
 245 <p class="whs1">regular1D = smesh.CreateHypothesis(&quot;Regular_1D&quot;, \r
 246  &quot;libStdMeshersEngine.so&quot;)</p>\r
 247 \r
 248 <p class="whs1">quad2D = smesh.CreateHypothesis(&quot;Quadrangle_2D&quot;, \r
 249  &quot;libStdMeshersEngine.so&quot;)</p>\r
 250 \r
 251 <p class="whs2">&nbsp;</p>\r
 252 \r
 253 <p class="whs2"># initialize a mesh with \r
 254  the box</p>\r
 255 \r
 256 <p class="whs1">mesh = smesh.CreateMesh(box)</p>\r
 257 \r
 258 <p class="whs2">&nbsp;</p>\r
 259 \r
 260 <p class="whs2"># add hypotheses and algorithms \r
 261  to the box</p>\r
 262 \r
 263 <p class="whs1">mesh.AddHypothesis(box,hypNbSeg)</p>\r
 264 \r
 265 <p class="whs1">mesh.AddHypothesis(box,regular1D)</p>\r
 266 \r
 267 <p class="whs1">mesh.AddHypothesis(box,quad2D)</p>\r
 268 \r
 269 <p class="whs2">&nbsp;</p>\r
 270 \r
 271 <p class="whs2"># compute the mesh</p>\r
 272 \r
 273 <p class="whs1">ret = smesh.Compute(mesh,box)</p>\r
 274 \r
 275 <p class="whs1">if ret == 0:</p>\r
 276 \r
 277 <p class="whs1">&nbsp;&nbsp;&nbsp;&nbsp;print \r
 278  &quot;probleme when computing the mesh&quot;</p>\r
 279 \r
 280 <p class="whs1">else:</p>\r
 281 \r
 282 <p class="whs1">&nbsp;&nbsp;&nbsp;&nbsp;print \r
 283  &quot;Computation succeded&quot;</p>\r
 284 \r
 285 <p class="whs2">&nbsp;</p>\r
 286 \r
 287 <p class="whs2"># create geometry groups \r
 288  on the face</p>\r
 289 \r
 290 <p class="whs1">aGeomGroup1 = geompy.CreateGroup(face, \r
 291  geompy.ShapeType[&quot;FACE&quot;])</p>\r
 292 \r
 293 <p class="whs1">geompy.AddObject(aGeomGroup1, \r
 294  1)</p>\r
 295 \r
 296 <p class="whs1">&nbsp;</p>\r
 297 \r
 298 <p class="whs1">aGeomGroup2 = geompy.CreateGroup(face, \r
 299  geompy.ShapeType[&quot;EDGE&quot;])</p>\r
 300 \r
 301 <p class="whs1">geompy.AddObject(aGeomGroup2, \r
 302  3)</p>\r
 303 \r
 304 <p class="whs1">geompy.AddObject(aGeomGroup2, \r
 305  6)</p>\r
 306 \r
 307 <p class="whs1">geompy.AddObject(aGeomGroup2, \r
 308  8)</p>\r
 309 \r
 310 <p class="whs1">geompy.AddObject(aGeomGroup2, \r
 311  10)</p>\r
 312 \r
 313 <p class="whs1">&nbsp;</p>\r
 314 \r
 315 <p class="whs1">geompy.addToStudy(aGeomGroup1, \r
 316  &quot;Group on Faces&quot;)</p>\r
 317 \r
 318 <p class="whs1">geompy.addToStudy(aGeomGroup2, \r
 319  &quot;Group on Edges&quot;)</p>\r
 320 \r
 321 <p class="whs2">&nbsp;</p>\r
 322 \r
 323 <p class="whs2"># create SMESH groups</p>\r
 324 \r
 325 <p class="whs1">aSmeshGroup1 = mesh.CreateGroupFromGEOM(SMESH.FACE, \r
 326  &quot;SMESHGroup1&quot;,</p>\r
 327 \r
 328 <p class="whs1">aGeomGroup1)</p>\r
 329 \r
 330 <p class="whs1">aSmeshGroup2 = mesh.CreateGroupFromGEOM(SMESH.EDGE, \r
 331  &quot;SMESHGroup2&quot;, aGeomGroup2)</p>\r
 332 \r
 333 <p class="whs1">&nbsp;</p>\r
 334 \r
 335 <p class="whs2"><span style="font-family: 'Lucida Console', monospace;">salome.sg.updateObjBrowser(1)</span> \r
 336  &nbsp;</p>\r
 337 \r
 338 <p class="whs2">&nbsp;</p>\r
 339 \r
 340 <h3><a name=bookmark1>Edit a Group</a></h3>\r
 341 \r
 342 <p class="whs1">import SMESH</p>\r
 343 \r
 344 <p class="whs1">import SMESH_mechanic</p>\r
 345 \r
 346 <p class="whs1">&nbsp;</p>\r
 347 \r
 348 <p class="whs1">smesh &nbsp;= \r
 349  SMESH_mechanic.smesh</p>\r
 350 \r
 351 <p class="whs1">mesh &nbsp;&nbsp;= \r
 352  SMESH_mechanic.mesh</p>\r
 353 \r
 354 <p class="whs1">salome = SMESH_mechanic.salome</p>\r
 355 \r
 356 <p class="whs1">&nbsp;</p>\r
 357 \r
 358 <p class="whs1">aFilterMgr = smesh.CreateFilterManager()</p>\r
 359 \r
 360 <p class="whs1">&nbsp;</p>\r
 361 \r
 362 <p class="whs2"># Criterion : AREA &gt; \r
 363  20</p>\r
 364 \r
 365 <p class="whs2">&nbsp;</p>\r
 366 \r
 367 <p class="whs1">aFunctor = aFilterMgr.CreateArea()</p>\r
 368 \r
 369 <p class="whs1">aPredicate = aFilterMgr.CreateMoreThan()</p>\r
 370 \r
 371 <p class="whs1">aPredicate.SetNumFunctor( \r
 372  aFunctor )</p>\r
 373 \r
 374 <p class="whs1">aPredicate.SetMargin( \r
 375  30 )</p>\r
 376 \r
 377 <p class="whs1">&nbsp;</p>\r
 378 \r
 379 <p class="whs1">aFilter = aFilterMgr.CreateFilter()</p>\r
 380 \r
 381 <p class="whs1">aFilter.SetPredicate( \r
 382  aPredicate )</p>\r
 383 \r
 384 <p class="whs1">&nbsp;</p>\r
 385 \r
 386 <p class="whs1">anIds = aFilter.GetElementsId( \r
 387  mesh )</p>\r
 388 \r
 389 <p class="whs1">&nbsp;</p>\r
 390 \r
 391 <p class="whs2"># create a group by adding \r
 392  elements with area &gt; 20</p>\r
 393 \r
 394 <p class="whs1">aGroup = mesh.CreateGroup( \r
 395  SMESH.FACE, &quot;Area &gt; 20&quot; )</p>\r
 396 \r
 397 <p class="whs1">aGroup.Add( anIds \r
 398  )</p>\r
 399 \r
 400 <p class="whs1">&nbsp;</p>\r
 401 \r
 402 <p class="whs1">print &quot;Criterion: \r
 403  Area &gt; 20 Nb = &quot;, len( anIds )</p>\r
 404 \r
 405 <p class="whs1">for i in range( \r
 406  len( anIds ) ):</p>\r
 407 \r
 408 <p class="whs1">&nbsp;&nbsp;print \r
 409  anIds[ i ]</p>\r
 410 \r
 411 <p class="whs1">&nbsp;</p>\r
 412 \r
 413 <p class="whs2"># Criterion : AREA &gt; \r
 414  60</p>\r
 415 \r
 416 <p class="whs2">&nbsp;</p>\r
 417 \r
 418 <p class="whs1">aFunctor = aFilterMgr.CreateArea()</p>\r
 419 \r
 420 <p class="whs1">aPredicate = aFilterMgr.CreateMoreThan()</p>\r
 421 \r
 422 <p class="whs1">aPredicate.SetNumFunctor( \r
 423  aFunctor )</p>\r
 424 \r
 425 <p class="whs1">aPredicate.SetMargin( \r
 426  60 )</p>\r
 427 \r
 428 <p class="whs1">&nbsp;</p>\r
 429 \r
 430 <p class="whs1">aFilter = aFilterMgr.CreateFilter()</p>\r
 431 \r
 432 <p class="whs1">aFilter.SetPredicate( \r
 433  aPredicate )</p>\r
 434 \r
 435 <p class="whs1">&nbsp;</p>\r
 436 \r
 437 <p class="whs1">anIds = aFilter.GetElementsId( \r
 438  mesh )</p>\r
 439 \r
 440 <p class="whs2">&nbsp;</p>\r
 441 \r
 442 <p class="whs2"># create a group of elements \r
 443  with area [20; 60] by removing elements with area &gt; 60 from &nbsp;group \r
 444  aGroup </p>\r
 445 \r
 446 <p class="whs1">aGroup.Remove(anIds)</p>\r
 447 \r
 448 <p class="whs2">&nbsp;</p>\r
 449 \r
 450 <p class="whs2"># print the result</p>\r
 451 \r
 452 <p class="whs1">aGroupElemIDs = \r
 453  aGroup.GetListOfID()</p>\r
 454 \r
 455 <p class="whs1">print &quot;Criterion: \r
 456  20 &lt; Area &lt; 60 = &quot;, len( aGroupElemIDs )</p>\r
 457 \r
 458 <p class="whs1">for i in range( \r
 459  len( aGroupElemIDs ) ):</p>\r
 460 \r
 461 <p class="whs1">&nbsp;&nbsp;print \r
 462  aGroupElemIDs[ i ]</p>\r
 463 \r
 464 <p class="whs1">&nbsp;</p>\r
 465 \r
 466 <p class="whs2"><span style="font-family: 'Lucida Console', monospace;">salome.sg.updateObjBrowser(1)</span> \r
 467  </p>\r
 468 \r
 469 <p class="whs2">&nbsp;</p>\r
 470 \r
 471 <p class="whs2"><img src="pics/editing_groups1.png" x-maintain-ratio="TRUE" width="463px" height="417px" border="0" class="img_whs4"> &nbsp;<img src="pics/editing_groups2.png" x-maintain-ratio="TRUE" width="541px" height="417px" border="0" class="img_whs5"></p>\r
 472 \r
 473 <h3><a name=bookmark2>Union of two groups</a></h3>\r
 474 \r
 475 <p class="whs1">import SMESH</p>\r
 476 \r
 477 <p class="whs1">import SMESH_mechanic</p>\r
 478 \r
 479 <p class="whs1">&nbsp;</p>\r
 480 \r
 481 <p class="whs1">smesh &nbsp;= \r
 482  SMESH_mechanic.smesh</p>\r
 483 \r
 484 <p class="whs1">mesh &nbsp;&nbsp;= \r
 485  SMESH_mechanic.mesh</p>\r
 486 \r
 487 <p class="whs1">salome = SMESH_mechanic.salome</p>\r
 488 \r
 489 <p class="whs1">&nbsp;</p>\r
 490 \r
 491 <p class="whs1">aFilterMgr = smesh.CreateFilterManager()</p>\r
 492 \r
 493 <p class="whs1">&nbsp;</p>\r
 494 \r
 495 <p class="whs2"># Criterion : AREA &gt; \r
 496  20</p>\r
 497 \r
 498 <p class="whs2">&nbsp;</p>\r
 499 \r
 500 <p class="whs1">aFunctor = aFilterMgr.CreateArea()</p>\r
 501 \r
 502 <p class="whs1">aPredicate = aFilterMgr.CreateMoreThan()</p>\r
 503 \r
 504 <p class="whs1">aPredicate.SetNumFunctor( \r
 505  aFunctor )</p>\r
 506 \r
 507 <p class="whs1">aPredicate.SetMargin( \r
 508  20 )</p>\r
 509 \r
 510 <p class="whs1">&nbsp;</p>\r
 511 \r
 512 <p class="whs1">aFilter = aFilterMgr.CreateFilter()</p>\r
 513 \r
 514 <p class="whs1">aFilter.SetPredicate( \r
 515  aPredicate )</p>\r
 516 \r
 517 <p class="whs1">&nbsp;</p>\r
 518 \r
 519 <p class="whs1">anIds = aFilter.GetElementsId( \r
 520  mesh )</p>\r
 521 \r
 522 <p class="whs1">&nbsp;</p>\r
 523 \r
 524 <p class="whs2"># create a group by adding \r
 525  elements with area &gt; 20</p>\r
 526 \r
 527 <p class="whs1">aGroup1 = mesh.CreateGroup( \r
 528  SMESH.FACE, &quot;Area &gt; 20&quot; )</p>\r
 529 \r
 530 <p class="whs1">aGroup1.Add( anIds \r
 531  )</p>\r
 532 \r
 533 <p class="whs1">&nbsp;</p>\r
 534 \r
 535 <p class="whs1">print &quot;Criterion: \r
 536  Area &gt; 20 Nb = &quot;, len( anIds )</p>\r
 537 \r
 538 <p class="whs1">for i in range( \r
 539  len( anIds ) ):</p>\r
 540 \r
 541 <p class="whs1">&nbsp;&nbsp;print \r
 542  anIds[ i ]</p>\r
 543 \r
 544 <p class="whs1">&nbsp;</p>\r
 545 \r
 546 <p class="whs2"># Criterion : AREA = 20</p>\r
 547 \r
 548 <p class="whs2">&nbsp;</p>\r
 549 \r
 550 <p class="whs1">aFunctor = aFilterMgr.CreateArea()</p>\r
 551 \r
 552 <p class="whs1">aPredicate = aFilterMgr.CreateEqualTo()</p>\r
 553 \r
 554 <p class="whs1">aPredicate.SetNumFunctor( \r
 555  aFunctor )</p>\r
 556 \r
 557 <p class="whs1">aPredicate.SetMargin( \r
 558  20 )</p>\r
 559 \r
 560 <p class="whs1">&nbsp;</p>\r
 561 \r
 562 <p class="whs1">aFilter = aFilterMgr.CreateFilter()</p>\r
 563 \r
 564 <p class="whs1">aFilter.SetPredicate( \r
 565  aPredicate )</p>\r
 566 \r
 567 <p class="whs1">&nbsp;</p>\r
 568 \r
 569 <p class="whs1">anIds = aFilter.GetElementsId( \r
 570  mesh )</p>\r
 571 \r
 572 <p class="whs2">&nbsp;</p>\r
 573 \r
 574 <p class="whs2"># create a group by adding \r
 575  elements with area &gt; 20</p>\r
 576 \r
 577 <p class="whs1">aGroup2 = mesh.CreateGroup( \r
 578  SMESH.FACE, &quot;Area = 20&quot; )</p>\r
 579 \r
 580 <p class="whs1">aGroup2.Add( anIds \r
 581  )</p>\r
 582 \r
 583 <p class="whs1">&nbsp;</p>\r
 584 \r
 585 <p class="whs1">print &quot;Criterion: \r
 586  Area = 20 Nb = &quot;, len( anIds )</p>\r
 587 \r
 588 <p class="whs1">for i in range( \r
 589  len( anIds ) ):</p>\r
 590 \r
 591 <p class="whs1">&nbsp;&nbsp;print \r
 592  anIds[ i ]</p>\r
 593 \r
 594 <p class="whs2">&nbsp;</p>\r
 595 \r
 596 <p class="whs2"># create union group : \r
 597  area &gt;= 20</p>\r
 598 \r
 599 <p class="whs1">aGroup3 = mesh.UnionGroups(aGroup1, \r
 600  aGroup2, &quot;Area &gt;= 20&quot;)</p>\r
 601 \r
 602 <p class="whs1">print &quot;Criterion: \r
 603  Area &gt;= 20 Nb = &quot;, len( aGroup3.GetListOfID() )</p>\r
 604 \r
 605 <p class="whs1">&nbsp;</p>\r
 606 \r
 607 <p class="whs2"># Criterion : AREA &lt; \r
 608  20</p>\r
 609 \r
 610 <p class="whs2">&nbsp;</p>\r
 611 \r
 612 <p class="whs1">aFunctor = aFilterMgr.CreateArea()</p>\r
 613 \r
 614 <p class="whs1">aPredicate = aFilterMgr.CreateLessThan()</p>\r
 615 \r
 616 <p class="whs1">aPredicate.SetNumFunctor( \r
 617  aFunctor )</p>\r
 618 \r
 619 <p class="whs1">aPredicate.SetMargin( \r
 620  20 )</p>\r
 621 \r
 622 <p class="whs1">&nbsp;</p>\r
 623 \r
 624 <p class="whs1">aFilter = aFilterMgr.CreateFilter()</p>\r
 625 \r
 626 <p class="whs1">aFilter.SetPredicate( \r
 627  aPredicate )</p>\r
 628 \r
 629 <p class="whs1">&nbsp;</p>\r
 630 \r
 631 <p class="whs1">anIds = aFilter.GetElementsId( \r
 632  mesh )</p>\r
 633 \r
 634 <p class="whs1">&nbsp;</p>\r
 635 \r
 636 <p class="whs2"># create a group by adding \r
 637  elements with area &lt; 20</p>\r
 638 \r
 639 <p class="whs1">aGroup4 = mesh.CreateGroup( \r
 640  SMESH.FACE, &quot;Area &lt; 20&quot; )</p>\r
 641 \r
 642 <p class="whs1">aGroup4.Add( anIds \r
 643  )</p>\r
 644 \r
 645 <p class="whs1">&nbsp;</p>\r
 646 \r
 647 <p class="whs1">print &quot;Criterion: \r
 648  Area &lt; 20 Nb = &quot;, len( anIds )</p>\r
 649 \r
 650 <p class="whs1">for i in range( \r
 651  len( anIds ) ):</p>\r
 652 \r
 653 <p class="whs1">&nbsp;&nbsp;print \r
 654  anIds[ i ]</p>\r
 655 \r
 656 <p class="whs2">&nbsp;&nbsp;</p>\r
 657 \r
 658 <p class="whs2"># create union group : \r
 659  area &gt;= 20 and area &lt; 20</p>\r
 660 \r
 661 <p class="whs1">aGroup5 = mesh.UnionGroups(aGroup3, \r
 662  aGroup4, &quot;Any Area&quot;)</p>\r
 663 \r
 664 <p class="whs1">print &quot;Criterion: \r
 665  Any Area Nb = &quot;, len( aGroup5.GetListOfID() )</p>\r
 666 \r
 667 <p class="whs1">&nbsp;</p>\r
 668 \r
 669 <p class="whs1">salome.sg.updateObjBrowser(1) \r
 670  </p>\r
 671 \r
 672 <p class="whs1">&nbsp;</p>\r
 673 \r
 674 <p class="whs1"><img src="pics/union_groups1.png" x-maintain-ratio="TRUE" width="394px" height="425px" border="0" class="img_whs6"></p>\r
 675 \r
 676 <p class="whs1">&nbsp;</p>\r
 677 \r
 678 <p class="whs1"><img src="pics/union_groups2.png" x-maintain-ratio="TRUE" width="368px" height="379px" border="0" class="img_whs7"> <img src="pics/union_groups3.png" x-maintain-ratio="TRUE" width="344px" height="381px" border="0" class="img_whs8"></p>\r
 679 \r
 680 <p class="whs1">&nbsp;</p>\r
 681 \r
 682 <h3><a name=bookmark3>Intersection of two groups</a></h3>\r
 683 \r
 684 <p class="whs1">import SMESH</p>\r
 685 \r
 686 <p class="whs1">import SMESH_mechanic</p>\r
 687 \r
 688 <p class="whs1">&nbsp;</p>\r
 689 \r
 690 <p class="whs1">smesh &nbsp;= \r
 691  SMESH_mechanic.smesh</p>\r
 692 \r
 693 <p class="whs1">mesh &nbsp;&nbsp;= \r
 694  SMESH_mechanic.mesh</p>\r
 695 \r
 696 <p class="whs1">salome = SMESH_mechanic.salome</p>\r
 697 \r
 698 <p class="whs1">&nbsp;</p>\r
 699 \r
 700 <p class="whs1">aFilterMgr = smesh.CreateFilterManager()</p>\r
 701 \r
 702 <p class="whs1">&nbsp;</p>\r
 703 \r
 704 <p class="whs2"># Criterion : AREA &gt; \r
 705  20</p>\r
 706 \r
 707 <p class="whs2">&nbsp;</p>\r
 708 \r
 709 <p class="whs1">aFunctor = aFilterMgr.CreateArea()</p>\r
 710 \r
 711 <p class="whs1">aPredicate = aFilterMgr.CreateMoreThan()</p>\r
 712 \r
 713 <p class="whs1">aPredicate.SetNumFunctor( \r
 714  aFunctor )</p>\r
 715 \r
 716 <p class="whs1">aPredicate.SetMargin( \r
 717  20 )</p>\r
 718 \r
 719 <p class="whs1">&nbsp;</p>\r
 720 \r
 721 <p class="whs1">aFilter = aFilterMgr.CreateFilter()</p>\r
 722 \r
 723 <p class="whs1">aFilter.SetPredicate( \r
 724  aPredicate )</p>\r
 725 \r
 726 <p class="whs1">&nbsp;</p>\r
 727 \r
 728 <p class="whs1">anIds = aFilter.GetElementsId( \r
 729  mesh )</p>\r
 730 \r
 731 <p class="whs1">&nbsp;</p>\r
 732 \r
 733 <p class="whs2"># create a group by adding \r
 734  elements with area &gt; 20</p>\r
 735 \r
 736 <p class="whs1">aGroup1 = mesh.CreateGroup( \r
 737  SMESH.FACE, &quot;Area &gt; 20&quot; )</p>\r
 738 \r
 739 <p class="whs1">aGroup1.Add( anIds \r
 740  )</p>\r
 741 \r
 742 <p class="whs1">&nbsp;</p>\r
 743 \r
 744 <p class="whs1">print &quot;Criterion: \r
 745  Area &gt; 20 Nb = &quot;, len( anIds )</p>\r
 746 \r
 747 <p class="whs1">for i in range( \r
 748  len( anIds ) ):</p>\r
 749 \r
 750 <p class="whs1">&nbsp;&nbsp;print \r
 751  anIds[ i ]</p>\r
 752 \r
 753 <p class="whs1">&nbsp;</p>\r
 754 \r
 755 <p class="whs2"># Criterion : AREA &lt; \r
 756  60</p>\r
 757 \r
 758 <p class="whs2">&nbsp;</p>\r
 759 \r
 760 <p class="whs1">aFunctor = aFilterMgr.CreateArea()</p>\r
 761 \r
 762 <p class="whs1">aPredicate = aFilterMgr.CreateLessThan()</p>\r
 763 \r
 764 <p class="whs1">aPredicate.SetNumFunctor( \r
 765  aFunctor )</p>\r
 766 \r
 767 <p class="whs1">aPredicate.SetMargin( \r
 768  60 )</p>\r
 769 \r
 770 <p class="whs1">&nbsp;</p>\r
 771 \r
 772 <p class="whs1">aFilter = aFilterMgr.CreateFilter()</p>\r
 773 \r
 774 <p class="whs1">aFilter.SetPredicate( \r
 775  aPredicate )</p>\r
 776 \r
 777 <p class="whs1">&nbsp;</p>\r
 778 \r
 779 <p class="whs1">anIds = aFilter.GetElementsId( \r
 780  mesh )</p>\r
 781 \r
 782 <p class="whs1">&nbsp;</p>\r
 783 \r
 784 <p class="whs2"># create a group by adding \r
 785  elements with area &lt; 60</p>\r
 786 \r
 787 <p class="whs1">aGroup2 = mesh.CreateGroup( \r
 788  SMESH.FACE, &quot;Area &lt; 60&quot; )</p>\r
 789 \r
 790 <p class="whs1">aGroup2.Add( anIds \r
 791  )</p>\r
 792 \r
 793 <p class="whs1">&nbsp;</p>\r
 794 \r
 795 <p class="whs1">print &quot;Criterion: \r
 796  Area &lt; 60 Nb = &quot;, len( anIds )</p>\r
 797 \r
 798 <p class="whs1">for i in range( \r
 799  len( anIds ) ):</p>\r
 800 \r
 801 <p class="whs1">&nbsp;&nbsp;print \r
 802  anIds[ i ]</p>\r
 803 \r
 804 <p class="whs2">&nbsp;&nbsp;</p>\r
 805 \r
 806 <p class="whs2"># create an intersection \r
 807  of groups : 20 &lt; area &lt; 60</p>\r
 808 \r
 809 <p class="whs1">aGroup3 = mesh.IntersectGroups(aGroup1, \r
 810  aGroup2, &quot;20 &lt; Area &lt; 60&quot;)</p>\r
 811 \r
 812 <p class="whs1">print &quot;Criterion: \r
 813  20 &lt; Area &lt; 60 Nb = &quot;, len( aGroup3.GetListOfID() )</p>\r
 814 \r
 815 <p class="whs1">&nbsp;</p>\r
 816 \r
 817 <p class="whs2"><span style="font-family: 'Lucida Console', monospace;">salome.sg.updateObjBrowser(1)</span> \r
 818  </p>\r
 819 \r
 820 <p class="whs2">&nbsp;</p>\r
 821 \r
 822 <p class="whs2"><img src="pics/intersect_groups1.png" x-maintain-ratio="TRUE" width="314px" height="351px" border="0" class="img_whs9"> &nbsp;<img src="pics/intersect_groups2.png" x-maintain-ratio="TRUE" width="319px" height="351px" border="0" class="img_whs10"> &nbsp;<img src="pics/intersect_groups3.png" x-maintain-ratio="TRUE" width="304px" height="352px" border="0" class="img_whs11"></p>\r
 823 \r
 824 <h3><a name=bookmark4>Cut of two groups</a></h3>\r
 825 \r
 826 <p class="whs1">import SMESH</p>\r
 827 \r
 828 <p class="whs1">import SMESH_mechanic</p>\r
 829 \r
 830 <p class="whs1">&nbsp;</p>\r
 831 \r
 832 <p class="whs1">smesh &nbsp;= \r
 833  SMESH_mechanic.smesh</p>\r
 834 \r
 835 <p class="whs1">mesh &nbsp;&nbsp;= \r
 836  SMESH_mechanic.mesh</p>\r
 837 \r
 838 <p class="whs1">salome = SMESH_mechanic.salome</p>\r
 839 \r
 840 <p class="whs1">&nbsp;</p>\r
 841 \r
 842 <p class="whs1">aFilterMgr = smesh.CreateFilterManager()</p>\r
 843 \r
 844 <p class="whs1">&nbsp;</p>\r
 845 \r
 846 <p class="whs2"># Criterion : AREA &gt; \r
 847  20</p>\r
 848 \r
 849 <p class="whs2">&nbsp;</p>\r
 850 \r
 851 <p class="whs1">aFunctor = aFilterMgr.CreateArea()</p>\r
 852 \r
 853 <p class="whs1">aPredicate = aFilterMgr.CreateMoreThan()</p>\r
 854 \r
 855 <p class="whs1">aPredicate.SetNumFunctor( \r
 856  aFunctor )</p>\r
 857 \r
 858 <p class="whs1">aPredicate.SetMargin( \r
 859  20 )</p>\r
 860 \r
 861 <p class="whs1">&nbsp;</p>\r
 862 \r
 863 <p class="whs1">aFilter = aFilterMgr.CreateFilter()</p>\r
 864 \r
 865 <p class="whs1">aFilter.SetPredicate( \r
 866  aPredicate )</p>\r
 867 \r
 868 <p class="whs1">&nbsp;</p>\r
 869 \r
 870 <p class="whs1">anIds = aFilter.GetElementsId( \r
 871  mesh )</p>\r
 872 \r
 873 <p class="whs1">&nbsp;</p>\r
 874 \r
 875 <p class="whs2"># create a group by adding \r
 876  elements with area &gt; 20</p>\r
 877 \r
 878 <p class="whs1">aGroupMain = mesh.CreateGroup( \r
 879  SMESH.FACE, &quot;Area &gt; 20&quot; )</p>\r
 880 \r
 881 <p class="whs1">aGroupMain.Add( \r
 882  anIds )</p>\r
 883 \r
 884 <p class="whs1">&nbsp;</p>\r
 885 \r
 886 <p class="whs1">print &quot;Criterion: \r
 887  Area &gt; 20 Nb = &quot;, len( anIds )</p>\r
 888 \r
 889 <p class="whs1">for i in range( \r
 890  len( anIds ) ):</p>\r
 891 \r
 892 <p class="whs1">&nbsp;&nbsp;print \r
 893  anIds[ i ]</p>\r
 894 \r
 895 <p class="whs1">&nbsp;</p>\r
 896 \r
 897 <p class="whs2"># Criterion : AREA &lt; \r
 898  60</p>\r
 899 \r
 900 <p class="whs2">&nbsp;</p>\r
 901 \r
 902 <p class="whs1">aFunctor = aFilterMgr.CreateArea()</p>\r
 903 \r
 904 <p class="whs1">aPredicate = aFilterMgr.CreateLessThan()</p>\r
 905 \r
 906 <p class="whs1">aPredicate.SetNumFunctor( \r
 907  aFunctor )</p>\r
 908 \r
 909 <p class="whs1">aPredicate.SetMargin( \r
 910  60 )</p>\r
 911 \r
 912 <p class="whs1">&nbsp;</p>\r
 913 \r
 914 <p class="whs1">aFilter = aFilterMgr.CreateFilter()</p>\r
 915 \r
 916 <p class="whs1">aFilter.SetPredicate( \r
 917  aPredicate )</p>\r
 918 \r
 919 <p class="whs1">&nbsp;</p>\r
 920 \r
 921 <p class="whs1">anIds = aFilter.GetElementsId( \r
 922  mesh )</p>\r
 923 \r
 924 <p class="whs1">&nbsp;</p>\r
 925 \r
 926 <p class="whs2"># create a group by adding \r
 927  elements with area &lt; 60</p>\r
 928 \r
 929 <p class="whs1">aGroupTool = mesh.CreateGroup( \r
 930  SMESH.FACE, &quot;Area &lt; 60&quot; )</p>\r
 931 \r
 932 <p class="whs1">aGroupTool.Add( \r
 933  anIds )</p>\r
 934 \r
 935 <p class="whs1">&nbsp;</p>\r
 936 \r
 937 <p class="whs1">print &quot;Criterion: \r
 938  Area &lt; 60 Nb = &quot;, len( anIds )</p>\r
 939 \r
 940 <p class="whs1">for i in range( \r
 941  len( anIds ) ):</p>\r
 942 \r
 943 <p class="whs1">&nbsp;&nbsp;print \r
 944  anIds[ i ]</p>\r
 945 \r
 946 <p class="whs2">&nbsp;&nbsp;</p>\r
 947 \r
 948 <p class="whs2"># create an intersection \r
 949  of groups : area &gt;= 60</p>\r
 950 \r
 951 <p class="whs1">aGroupRes = mesh.CutGroups(aGroupMain, \r
 952  aGroupTool, &quot;Area &gt;= 60&quot;)</p>\r
 953 \r
 954 <p class="whs1">print &quot;Criterion: \r
 955  Area &gt;= 60 Nb = &quot;, len( aGroupRes.GetListOfID() )</p>\r
 956 \r
 957 <p class="whs1">&nbsp;</p>\r
 958 \r
 959 <p class="whs1">salome.sg.updateObjBrowser(1) \r
 960  </p>\r
 961 \r
 962 <p class="whs1">&nbsp;</p>\r
 963 \r
 964 <p class="whs2"><img src="pics/cut_groups1.png" x-maintain-ratio="TRUE" width="318px" height="355px" border="0" class="img_whs12"> &nbsp;<img src="pics/cut_groups2.png" x-maintain-ratio="TRUE" width="318px" height="355px" border="0" class="img_whs13"> &nbsp;<img src="pics/cut_groups3.png" x-maintain-ratio="TRUE" width="320px" height="354px" border="0" class="img_whs14"></p>\r
 965 \r
 966 <script type="text/javascript" language="javascript1.2">\r
 967 <!--\r
 968 if (window.writeIntopicBar)\r
 969         writeIntopicBar(0);\r
 970 //-->\r
 971 </script>\r
 972 </body>\r
 973 </html>\r