<!doctype HTML public "-//W3C//DTD HTML 4.0 Frameset//EN"> <html> <head> <title>Grouping Elements</title> <meta http-equiv="content-type" content="text/html; charset=windows-1252"> <meta name="generator" content="RoboHelp by eHelp Corporation www.ehelp.com"><style type="text/css"> <!-- p.whs1 { margin-top:0pt; margin-bottom:0pt; font-family:'Lucida Console' , monospace; } p.whs2 { margin-top:0pt; margin-bottom:0pt; } img_whs3 { border:none; width:430px; height:391px; float:none; border-style:none; } img_whs4 { border:none; float:none; width:463px; height:417px; border-style:none; } img_whs5 { border:none; width:541px; height:417px; float:none; border-style:none; } img_whs6 { border:none; width:394px; height:425px; float:none; border-style:none; } img_whs7 { border:none; float:none; width:368px; height:379px; border-style:none; } img_whs8 { border:none; float:none; width:344px; height:381px; border-style:none; } img_whs9 { border:none; width:314px; height:351px; float:none; 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AREA > 100</p> <p class="whs1"> </p> <p class="whs1">aFunctor = aFilterMgr.CreateArea()</p> <p class="whs1">aPredicate = aFilterMgr.CreateMoreThan()</p> <p class="whs1">aPredicate.SetNumFunctor( aFunctor )</p> <p class="whs1">aPredicate.SetMargin( 100 )</p> <p class="whs1"> </p> <p class="whs1">aFilter = aFilterMgr.CreateFilter()</p> <p class="whs1">aFilter.SetPredicate( aPredicate )</p> <p class="whs1"> </p> <p class="whs1">anIds = aFilter.GetElementsId( mesh )</p> <p class="whs2"> </p> <p class="whs2"># print the result</p> <p class="whs1">print "Criterion: Area > 100 Nb = ", len( anIds )</p> <p class="whs1">for i in range( len( anIds ) ):</p> <p class="whs1"> print anIds[ i ]</p> <p class="whs1"> </p> <p class="whs2"># create a group consisting of faces with area > 100</p> <p class="whs1">aGroup = mesh.CreateGroup( SMESH.FACE, "Area > 100" )</p> <p class="whs1">aGroup.Add( anIds )</p> <p class="whs1"> </p> <p class="whs2"><span style="font-family: 'Lucida Console', monospace;">salome.sg.updateObjBrowser(1)</span> </p> <p class="whs2"> </p> <p class="whs2"><img src="pics/create_group.png" x-maintain-ratio="TRUE" width="430px" height="391px" border="0" class="img_whs3"></p> <h3><a name=bookmark5>Create a Group on Geometry</a></h3> <p class="whs1">import salome</p> <p class="whs1">import geompy</p> <p class="whs1"> </p> <p class="whs1">import SMESH</p> <p class="whs1">import StdMeshers</p> <p class="whs1"> </p> <p class="whs1">smesh = salome.lcc.FindOrLoadComponent("FactoryServer", "SMESH")</p> <p class="whs2"> </p> <p class="whs2"># create a box</p> <p class="whs1">box = geompy.MakeBox(0., 0., 0., 100., 100., 100.)</p> <p class="whs2"> </p> <p class="whs2"># add the box to the study</p> <p class="whs1">idbox = geompy.addToStudy(box, "box")</p> <p class="whs2"> </p> <p class="whs2"># add the first face of the box to the study</p> <p class="whs1">subShapeList = geompy.SubShapeAll(box, geompy.ShapeType["FACE"])</p> <p class="whs1">face = subShapeList[0]</p> <p class="whs1">name = geompy.SubShapeName(face, box)</p> <p class="whs1">idface = geompy.addToStudyInFather(box, face, name)</p> <p class="whs2"> </p> <p class="whs2"># create a hypothesis</p> <p class="whs1">numberOfSegments = 7</p> <p class="whs1">hypNbSeg = smesh.CreateHypothesis("NumberOfSegments", "libStdMeshersEngine.so")</p> <p class="whs1">hypNbSeg.SetNumberOfSegments(numberOfSegments)</p> <p class="whs2"> </p> <p class="whs2"># create algorithms</p> <p class="whs1">regular1D = smesh.CreateHypothesis("Regular_1D", "libStdMeshersEngine.so")</p> <p class="whs1">quad2D = smesh.CreateHypothesis("Quadrangle_2D", "libStdMeshersEngine.so")</p> <p class="whs2"> </p> <p class="whs2"># initialize a mesh with the box</p> <p class="whs1">mesh = smesh.CreateMesh(box)</p> <p class="whs2"> </p> <p class="whs2"># add hypotheses and algorithms to the box</p> <p class="whs1">mesh.AddHypothesis(box,hypNbSeg)</p> <p class="whs1">mesh.AddHypothesis(box,regular1D)</p> <p class="whs1">mesh.AddHypothesis(box,quad2D)</p> <p class="whs2"> </p> <p class="whs2"># compute the mesh</p> <p class="whs1">ret = smesh.Compute(mesh,box)</p> <p class="whs1">if ret == 0:</p> <p class="whs1"> print "probleme when computing the mesh"</p> <p class="whs1">else:</p> <p class="whs1"> print "Computation succeded"</p> <p class="whs2"> </p> <p class="whs2"># create geometry groups on the face</p> <p class="whs1">aGeomGroup1 = geompy.CreateGroup(face, geompy.ShapeType["FACE"])</p> <p class="whs1">geompy.AddObject(aGeomGroup1, 1)</p> <p class="whs1"> </p> <p class="whs1">aGeomGroup2 = geompy.CreateGroup(face, geompy.ShapeType["EDGE"])</p> <p class="whs1">geompy.AddObject(aGeomGroup2, 3)</p> <p class="whs1">geompy.AddObject(aGeomGroup2, 6)</p> <p class="whs1">geompy.AddObject(aGeomGroup2, 8)</p> <p class="whs1">geompy.AddObject(aGeomGroup2, 10)</p> <p class="whs1"> </p> <p class="whs1">geompy.addToStudy(aGeomGroup1, "Group on Faces")</p> <p class="whs1">geompy.addToStudy(aGeomGroup2, "Group on Edges")</p> <p class="whs2"> </p> <p class="whs2"># create SMESH groups</p> <p class="whs1">aSmeshGroup1 = mesh.CreateGroupFromGEOM(SMESH.FACE, "SMESHGroup1",</p> <p class="whs1">aGeomGroup1)</p> <p class="whs1">aSmeshGroup2 = mesh.CreateGroupFromGEOM(SMESH.EDGE, "SMESHGroup2", aGeomGroup2)</p> <p class="whs1"> </p> <p class="whs2"><span style="font-family: 'Lucida Console', monospace;">salome.sg.updateObjBrowser(1)</span> </p> <p class="whs2"> </p> <h3><a name=bookmark1>Edit a Group</a></h3> <p class="whs1">import SMESH</p> <p class="whs1">import SMESH_mechanic</p> <p class="whs1"> </p> <p class="whs1">smesh = SMESH_mechanic.smesh</p> <p class="whs1">mesh = SMESH_mechanic.mesh</p> <p class="whs1">salome = SMESH_mechanic.salome</p> <p class="whs1"> </p> <p class="whs1">aFilterMgr = smesh.CreateFilterManager()</p> <p class="whs1"> </p> <p class="whs2"># Criterion : AREA > 20</p> <p class="whs2"> </p> <p class="whs1">aFunctor = aFilterMgr.CreateArea()</p> <p class="whs1">aPredicate = aFilterMgr.CreateMoreThan()</p> <p class="whs1">aPredicate.SetNumFunctor( aFunctor )</p> <p class="whs1">aPredicate.SetMargin( 30 )</p> <p class="whs1"> </p> <p class="whs1">aFilter = aFilterMgr.CreateFilter()</p> <p class="whs1">aFilter.SetPredicate( aPredicate )</p> <p class="whs1"> </p> <p class="whs1">anIds = aFilter.GetElementsId( mesh )</p> <p class="whs1"> </p> <p class="whs2"># create a group by adding elements with area > 20</p> <p class="whs1">aGroup = mesh.CreateGroup( SMESH.FACE, "Area > 20" )</p> <p class="whs1">aGroup.Add( anIds )</p> <p class="whs1"> </p> <p class="whs1">print "Criterion: Area > 20 Nb = ", len( anIds )</p> <p class="whs1">for i in range( len( anIds ) ):</p> <p class="whs1"> print anIds[ i ]</p> <p class="whs1"> </p> <p class="whs2"># Criterion : AREA > 60</p> <p class="whs2"> </p> <p class="whs1">aFunctor = aFilterMgr.CreateArea()</p> <p class="whs1">aPredicate = aFilterMgr.CreateMoreThan()</p> <p class="whs1">aPredicate.SetNumFunctor( aFunctor )</p> <p class="whs1">aPredicate.SetMargin( 60 )</p> <p class="whs1"> </p> <p class="whs1">aFilter = aFilterMgr.CreateFilter()</p> <p class="whs1">aFilter.SetPredicate( aPredicate )</p> <p class="whs1"> </p> <p class="whs1">anIds = aFilter.GetElementsId( mesh )</p> <p class="whs2"> </p> <p class="whs2"># create a group of elements with area [20; 60] by removing elements with area > 60 from group aGroup </p> <p class="whs1">aGroup.Remove(anIds)</p> <p class="whs2"> </p> <p class="whs2"># print the result</p> <p class="whs1">aGroupElemIDs = aGroup.GetListOfID()</p> <p class="whs1">print "Criterion: 20 < Area < 60 = ", len( aGroupElemIDs )</p> <p class="whs1">for i in range( len( aGroupElemIDs ) ):</p> <p class="whs1"> print aGroupElemIDs[ i ]</p> <p class="whs1"> </p> <p class="whs2"><span style="font-family: 'Lucida Console', monospace;">salome.sg.updateObjBrowser(1)</span> </p> <p class="whs2"> </p> <p class="whs2"><img src="pics/editing_groups1.png" x-maintain-ratio="TRUE" width="463px" height="417px" border="0" class="img_whs4"> <img src="pics/editing_groups2.png" x-maintain-ratio="TRUE" width="541px" height="417px" border="0" class="img_whs5"></p> <h3><a name=bookmark2>Union of two groups</a></h3> <p class="whs1">import SMESH</p> <p class="whs1">import SMESH_mechanic</p> <p class="whs1"> </p> <p class="whs1">smesh = SMESH_mechanic.smesh</p> <p class="whs1">mesh = SMESH_mechanic.mesh</p> <p class="whs1">salome = SMESH_mechanic.salome</p> <p class="whs1"> </p> <p class="whs1">aFilterMgr = smesh.CreateFilterManager()</p> <p class="whs1"> </p> <p class="whs2"># Criterion : AREA > 20</p> <p class="whs2"> </p> <p class="whs1">aFunctor = aFilterMgr.CreateArea()</p> <p class="whs1">aPredicate = aFilterMgr.CreateMoreThan()</p> <p class="whs1">aPredicate.SetNumFunctor( aFunctor )</p> <p class="whs1">aPredicate.SetMargin( 20 )</p> <p class="whs1"> </p> <p class="whs1">aFilter = aFilterMgr.CreateFilter()</p> <p class="whs1">aFilter.SetPredicate( aPredicate )</p> <p class="whs1"> </p> <p class="whs1">anIds = aFilter.GetElementsId( mesh )</p> <p class="whs1"> </p> <p class="whs2"># create a group by adding elements with area > 20</p> <p class="whs1">aGroup1 = mesh.CreateGroup( SMESH.FACE, "Area > 20" )</p> <p class="whs1">aGroup1.Add( anIds )</p> <p class="whs1"> </p> <p class="whs1">print "Criterion: Area > 20 Nb = ", len( anIds )</p> <p class="whs1">for i in range( len( anIds ) ):</p> <p class="whs1"> print anIds[ i ]</p> <p class="whs1"> </p> <p class="whs2"># Criterion : AREA = 20</p> <p class="whs2"> </p> <p class="whs1">aFunctor = aFilterMgr.CreateArea()</p> <p class="whs1">aPredicate = aFilterMgr.CreateEqualTo()</p> <p class="whs1">aPredicate.SetNumFunctor( aFunctor )</p> <p class="whs1">aPredicate.SetMargin( 20 )</p> <p class="whs1"> </p> <p class="whs1">aFilter = aFilterMgr.CreateFilter()</p> <p class="whs1">aFilter.SetPredicate( aPredicate )</p> <p class="whs1"> </p> <p class="whs1">anIds = aFilter.GetElementsId( mesh )</p> <p class="whs2"> </p> <p class="whs2"># create a group by adding elements with area > 20</p> <p class="whs1">aGroup2 = mesh.CreateGroup( SMESH.FACE, "Area = 20" )</p> <p class="whs1">aGroup2.Add( anIds )</p> <p class="whs1"> </p> <p class="whs1">print "Criterion: Area = 20 Nb = ", len( anIds )</p> <p class="whs1">for i in range( len( anIds ) ):</p> <p class="whs1"> print anIds[ i ]</p> <p class="whs2"> </p> <p class="whs2"># create union group : area >= 20</p> <p class="whs1">aGroup3 = mesh.UnionGroups(aGroup1, aGroup2, "Area >= 20")</p> <p class="whs1">print "Criterion: Area >= 20 Nb = ", len( aGroup3.GetListOfID() )</p> <p class="whs1"> </p> <p class="whs2"># Criterion : AREA < 20</p> <p class="whs2"> </p> <p class="whs1">aFunctor = aFilterMgr.CreateArea()</p> <p class="whs1">aPredicate = aFilterMgr.CreateLessThan()</p> <p class="whs1">aPredicate.SetNumFunctor( aFunctor )</p> <p class="whs1">aPredicate.SetMargin( 20 )</p> <p class="whs1"> </p> <p class="whs1">aFilter = aFilterMgr.CreateFilter()</p> <p class="whs1">aFilter.SetPredicate( aPredicate )</p> <p class="whs1"> </p> <p class="whs1">anIds = aFilter.GetElementsId( mesh )</p> <p class="whs1"> </p> <p class="whs2"># create a group by adding elements with area < 20</p> <p class="whs1">aGroup4 = mesh.CreateGroup( SMESH.FACE, "Area < 20" )</p> <p class="whs1">aGroup4.Add( anIds )</p> <p class="whs1"> </p> <p class="whs1">print "Criterion: Area < 20 Nb = ", len( anIds )</p> <p class="whs1">for i in range( len( anIds ) ):</p> <p class="whs1"> print anIds[ i ]</p> <p class="whs2"> </p> <p class="whs2"># create union group : area >= 20 and area < 20</p> <p class="whs1">aGroup5 = mesh.UnionGroups(aGroup3, aGroup4, "Any Area")</p> <p class="whs1">print "Criterion: Any Area Nb = ", len( aGroup5.GetListOfID() )</p> <p class="whs1"> </p> <p class="whs1">salome.sg.updateObjBrowser(1) </p> <p class="whs1"> </p> <p class="whs1"><img src="pics/union_groups1.png" x-maintain-ratio="TRUE" width="394px" height="425px" border="0" class="img_whs6"></p> <p class="whs1"> </p> <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> <p class="whs1"> </p> <h3><a name=bookmark3>Intersection of two groups</a></h3> <p class="whs1">import SMESH</p> <p class="whs1">import SMESH_mechanic</p> <p class="whs1"> </p> <p class="whs1">smesh = SMESH_mechanic.smesh</p> <p class="whs1">mesh = SMESH_mechanic.mesh</p> <p class="whs1">salome = SMESH_mechanic.salome</p> <p class="whs1"> </p> <p class="whs1">aFilterMgr = smesh.CreateFilterManager()</p> <p class="whs1"> </p> <p class="whs2"># Criterion : AREA > 20</p> <p class="whs2"> </p> <p class="whs1">aFunctor = aFilterMgr.CreateArea()</p> <p class="whs1">aPredicate = aFilterMgr.CreateMoreThan()</p> <p class="whs1">aPredicate.SetNumFunctor( aFunctor )</p> <p class="whs1">aPredicate.SetMargin( 20 )</p> <p class="whs1"> </p> <p class="whs1">aFilter = aFilterMgr.CreateFilter()</p> <p class="whs1">aFilter.SetPredicate( aPredicate )</p> <p class="whs1"> </p> <p class="whs1">anIds = aFilter.GetElementsId( mesh )</p> <p class="whs1"> </p> <p class="whs2"># create a group by adding elements with area > 20</p> <p class="whs1">aGroup1 = mesh.CreateGroup( SMESH.FACE, "Area > 20" )</p> <p class="whs1">aGroup1.Add( anIds )</p> <p class="whs1"> </p> <p class="whs1">print "Criterion: Area > 20 Nb = ", len( anIds )</p> <p class="whs1">for i in range( len( anIds ) ):</p> <p class="whs1"> print anIds[ i ]</p> <p class="whs1"> </p> <p class="whs2"># Criterion : AREA < 60</p> <p class="whs2"> </p> <p class="whs1">aFunctor = aFilterMgr.CreateArea()</p> <p class="whs1">aPredicate = aFilterMgr.CreateLessThan()</p> <p class="whs1">aPredicate.SetNumFunctor( aFunctor )</p> <p class="whs1">aPredicate.SetMargin( 60 )</p> <p class="whs1"> </p> <p class="whs1">aFilter = aFilterMgr.CreateFilter()</p> <p class="whs1">aFilter.SetPredicate( aPredicate )</p> <p class="whs1"> </p> <p class="whs1">anIds = aFilter.GetElementsId( mesh )</p> <p class="whs1"> </p> <p class="whs2"># create a group by adding elements with area < 60</p> <p class="whs1">aGroup2 = mesh.CreateGroup( SMESH.FACE, "Area < 60" )</p> <p class="whs1">aGroup2.Add( anIds )</p> <p class="whs1"> </p> <p class="whs1">print "Criterion: Area < 60 Nb = ", len( anIds )</p> <p class="whs1">for i in range( len( anIds ) ):</p> <p class="whs1"> print anIds[ i ]</p> <p class="whs2"> </p> <p class="whs2"># create an intersection of groups : 20 < area < 60</p> <p class="whs1">aGroup3 = mesh.IntersectGroups(aGroup1, aGroup2, "20 < Area < 60")</p> <p class="whs1">print "Criterion: 20 < Area < 60 Nb = ", len( aGroup3.GetListOfID() )</p> <p class="whs1"> </p> <p class="whs2"><span style="font-family: 'Lucida Console', monospace;">salome.sg.updateObjBrowser(1)</span> </p> <p class="whs2"> </p> <p class="whs2"><img src="pics/intersect_groups1.png" x-maintain-ratio="TRUE" width="314px" height="351px" border="0" class="img_whs9"> <img src="pics/intersect_groups2.png" x-maintain-ratio="TRUE" width="319px" height="351px" border="0" class="img_whs10"> <img src="pics/intersect_groups3.png" x-maintain-ratio="TRUE" width="304px" height="352px" border="0" class="img_whs11"></p> <h3><a name=bookmark4>Cut of two groups</a></h3> <p class="whs1">import SMESH</p> <p class="whs1">import SMESH_mechanic</p> <p class="whs1"> </p> <p class="whs1">smesh = SMESH_mechanic.smesh</p> <p class="whs1">mesh = SMESH_mechanic.mesh</p> <p class="whs1">salome = SMESH_mechanic.salome</p> <p class="whs1"> </p> <p class="whs1">aFilterMgr = smesh.CreateFilterManager()</p> <p class="whs1"> </p> <p class="whs2"># Criterion : AREA > 20</p> <p class="whs2"> </p> <p class="whs1">aFunctor = aFilterMgr.CreateArea()</p> <p class="whs1">aPredicate = aFilterMgr.CreateMoreThan()</p> <p class="whs1">aPredicate.SetNumFunctor( aFunctor )</p> <p class="whs1">aPredicate.SetMargin( 20 )</p> <p class="whs1"> </p> <p class="whs1">aFilter = aFilterMgr.CreateFilter()</p> <p class="whs1">aFilter.SetPredicate( aPredicate )</p> <p class="whs1"> </p> <p class="whs1">anIds = aFilter.GetElementsId( mesh )</p> <p class="whs1"> </p> <p class="whs2"># create a group by adding elements with area > 20</p> <p class="whs1">aGroupMain = mesh.CreateGroup( SMESH.FACE, "Area > 20" )</p> <p class="whs1">aGroupMain.Add( anIds )</p> <p class="whs1"> </p> <p class="whs1">print "Criterion: Area > 20 Nb = ", len( anIds )</p> <p class="whs1">for i in range( len( anIds ) ):</p> <p class="whs1"> print anIds[ i ]</p> <p class="whs1"> </p> <p class="whs2"># Criterion : AREA < 60</p> <p class="whs2"> </p> <p class="whs1">aFunctor = aFilterMgr.CreateArea()</p> <p class="whs1">aPredicate = aFilterMgr.CreateLessThan()</p> <p class="whs1">aPredicate.SetNumFunctor( aFunctor )</p> <p class="whs1">aPredicate.SetMargin( 60 )</p> <p class="whs1"> </p> <p class="whs1">aFilter = aFilterMgr.CreateFilter()</p> <p class="whs1">aFilter.SetPredicate( aPredicate )</p> <p class="whs1"> </p> <p class="whs1">anIds = aFilter.GetElementsId( mesh )</p> <p class="whs1"> </p> <p class="whs2"># create a group by adding elements with area < 60</p> <p class="whs1">aGroupTool = mesh.CreateGroup( SMESH.FACE, "Area < 60" )</p> <p class="whs1">aGroupTool.Add( anIds )</p> <p class="whs1"> </p> <p class="whs1">print "Criterion: Area < 60 Nb = ", len( anIds )</p> <p class="whs1">for i in range( len( anIds ) ):</p> <p class="whs1"> print anIds[ i ]</p> <p class="whs2"> </p> <p class="whs2"># create an intersection of groups : area >= 60</p> <p class="whs1">aGroupRes = mesh.CutGroups(aGroupMain, aGroupTool, "Area >= 60")</p> <p class="whs1">print "Criterion: Area >= 60 Nb = ", len( aGroupRes.GetListOfID() )</p> <p class="whs1"> </p> <p class="whs1">salome.sg.updateObjBrowser(1) </p> <p class="whs1"> </p> <p class="whs2"><img src="pics/cut_groups1.png" x-maintain-ratio="TRUE" width="318px" height="355px" border="0" class="img_whs12"> <img src="pics/cut_groups2.png" x-maintain-ratio="TRUE" width="318px" height="355px" border="0" class="img_whs13"> <img src="pics/cut_groups3.png" x-maintain-ratio="TRUE" width="320px" height="354px" border="0" class="img_whs14"></p> <script type="text/javascript" language="javascript1.2"> <!-- if (window.writeIntopicBar) writeIntopicBar(0); //--> </script> </body> </html>