<!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; font-family:'Times New Roman' , serif; } p.whs3 { margin-top:0pt; margin-bottom:0pt; } img_whs4 { border:none; width:430px; height:391px; float:none; border-style:none; } img_whs5 { border:none; float:none; width:463px; height:417px; border-style:none; } img_whs6 { border:none; width:541px; height:417px; float:none; border-style:none; } img_whs7 { border:none; width:394px; height:425px; float:none; border-style:none; } img_whs8 { border:none; float:none; width:368px; height:379px; border-style:none; } img_whs9 { border:none; float:none; width:344px; height:381px; 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class="whs1">aFilter = smesh.GetFilter(smesh.FACE, smesh.FT_Area, smesh.FT_MoreThan, 100.)</p> <p class="whs1"> </p> <p class="whs1">anIds = mesh.GetIdsFromFilter(aFilter) </p> <p class="whs1"> </p> <p class="whs3"># create a group consisting of faces with area > 100</p> <p class="whs1"> </p> <p class="whs1">aGroup = mesh.MakeGroupByIds("Area > 100", smesh.FACE, anIds)</p> <p class="whs1"> </p> <p class="whs3"><span style="font-family: 'Lucida Console', monospace;">salome.sg.updateObjBrowser(1)</span> </p> <p class="whs3"> </p> <p class="whs3"><img src="pics/create_group.png" x-maintain-ratio="TRUE" width="430px" height="391px" border="0" class="img_whs4"></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">import smesh</p> <p class="whs1"> </p> <p class="whs2"># create a box</p> <p class="whs1">box = geompy.MakeBox(0., 0., 0., 100., 100., 100.)</p> <p class="whs1">geompy.addToStudy(box, "box")</p> <p class="whs1"> </p> <p class="whs2"># add the first face of the box to the study</p> <p class="whs1"><span style="font-family: 'Lucida Console', monospace;">subShapeList = geompy.SubShapeAll(box, geompy.ShapeType["FACE"])</span></p> <p class="whs1">face = subShapeList[0]</p> <p class="whs1">geompy.addToStudyInFather(box, face, "face 1") </p> <p class="whs1"> </p> <p class="whs2"># create group of edges on the face</p> <p class="whs1"><span style="font-family: 'Lucida Console', monospace;">aGeomGroupE = geompy.CreateGroup(face, geompy.ShapeType["EDGE"])</span></p> <p class="whs1">geompy.AddObject(aGeomGroupE, 3)</p> <p class="whs1">geompy.AddObject(aGeomGroupE, 6)</p> <p class="whs1">geompy.AddObject(aGeomGroupE, 8)</p> <p class="whs1">geompy.AddObject(aGeomGroupE, 10)</p> <p class="whs1">geompy.addToStudyInFather(face, aGeomGroupE, "Group of Edges")</p> <p class="whs1"> </p> <p class="whs2"># create quadrangle 2D mesh on the box</p> <p class="whs1"><span style="font-family: 'Lucida Console', monospace;">quadra = smesh.Mesh(box, "Box : quadrangle 2D mesh")</span></p> <p class="whs1">algo1D = quadra.Segment()</p> <p class="whs1">quadra.Quadrangle()</p> <p class="whs1">algo1D.NumberOfSegments(7) </p> <p class="whs1"> </p> <p class="whs2"># compute the mesh</p> <p class="whs1">quadra.Compute()</p> <p class="whs1"> </p> <p class="whs2"># create SMESH group on the face with name "SMESHGroup1"</p> <p class="whs1"><span style="font-family: 'Lucida Console', monospace;">aSmeshGroup1 = quadra.GroupOnGeom(face, "SMESHGroup1")</span></p> <p class="whs1"> </p> <p class="whs2"># create SMESH group on <aGeomGroupE> with default name</p> <p class="whs1">aSmeshGroup2 = quadra.GroupOnGeom(aGeomGroupE) </p> <p class="whs3"> </p> <p class="whs3"><span style="font-family: 'Lucida Console', monospace;">salome.sg.updateObjBrowser(1)</span> </p> <h3><a name=bookmark1>Edit a Group</a></h3> <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="whs2"># Get ids of all faces with area > 35</p> <p class="whs1">aFilter = smesh.GetFilter(smesh.FACE, smesh.FT_Area, smesh.FT_MoreThan, 35.)</p> <p class="whs1"> </p> <p class="whs1">anIds = mesh.GetIdsFromFilter(aFilter) </p> <p class="whs1"> </p> <p class="whs1">print "Criterion: Area > 35, Nb = ", len(anIds)</p> <p class="whs1"> </p> <p class="whs2"># create a group by adding elements with area > 35</p> <p class="whs1"><span style="font-family: 'Lucida Console', monospace;">aGroup = mesh.CreateEmptyGroup(smesh.FACE, "Area > 35")</span></p> <p class="whs1">aGroup.Add(anIds) </p> <p class="whs1"> </p> <p class="whs2"># Get ids of all faces with area > 40</p> <p class="whs1">aFilter = smesh.GetFilter(smesh.FACE, smesh.FT_Area, smesh.FT_MoreThan, 40.)</p> <p class="whs1"> </p> <p class="whs1">anIds = mesh.GetIdsFromFilter(aFilter)</p> <p class="whs1"> </p> <p class="whs1">print "Criterion: Area > 40, Nb = ", len(anIds) </p> <p class="whs1"> </p> <p class="whs2"># create a group of elements with area [35; 40] by removing elements with area > 40 from group aGroup</p> <p class="whs1">aGroup.Remove(anIds) </p> <p class="whs1"> </p> <p class="whs2"># print the result</p> <p class="whs1">aGroupElemIDs = aGroup.GetListOfID()</p> <p class="whs1"> </p> <p class="whs1">print "Criterion: 35 < Area < 40, Nb = ", len(aGroupElemIDs)</p> <p class="whs1">j = 1</p> <p class="whs1">for i in range(len(aGroupElemIDs)):</p> <p class="whs1"> if j > 20: j = 1; print ""</p> <p class="whs1"> print aGroupElemIDs[i],</p> <p class="whs1"> j = j + 1</p> <p class="whs1"> pass</p> <p class="whs1">print ""</p> <p class="whs1"> </p> <p class="whs1">salome.sg.updateObjBrowser(1) </p> <p class="whs3"> </p> <p class="whs3"><img src="pics/editing_groups1.png" x-maintain-ratio="TRUE" width="463px" height="417px" border="0" class="img_whs5"> <img src="pics/editing_groups2.png" x-maintain-ratio="TRUE" width="541px" height="417px" border="0" class="img_whs6"></p> <h3><a name=bookmark2>Union of two groups</a></h3> <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="whs2"># Criterion : AREA > 20</p> <p class="whs1">aFilter = smesh.GetFilter(smesh.FACE, smesh.FT_Area, smesh.FT_MoreThan, 20.)</p> <p class="whs1"> </p> <p class="whs1">anIds = mesh.GetIdsFromFilter(aFilter)</p> <p class="whs1"> </p> <p class="whs1">print "Criterion: Area > 20, Nb = ", len( anIds ) </p> <p class="whs1"> </p> <p class="whs2"># create a group by adding elements with area > 20</p> <p class="whs1">aGroup1 = mesh.CreateEmptyGroup(SMESH.FACE, "Area > 20")</p> <p class="whs1">aGroup1.Add(anIds)</p> <p class="whs1"> </p> <p class="whs2"># Criterion : AREA = 20</p> <p class="whs1"><span style="font-family: 'Lucida Console', monospace;">aFilter = smesh.GetFilter(smesh.FACE, smesh.FT_Area, smesh.FT_EqualTo, 20.)</span></p> <p class="whs1"> </p> <p class="whs1">anIds = mesh.GetIdsFromFilter(aFilter)</p> <p class="whs1"> </p> <p class="whs1">print "Criterion: Area = 20, Nb = ", len( anIds ) </p> <p class="whs1"> </p> <p class="whs2"># create a group by adding elements with area = 20</p> <p class="whs1">aGroup2 = mesh.CreateEmptyGroup( smesh.FACE, "Area = 20" )</p> <p class="whs1"> </p> <p class="whs1">aGroup2.Add(anIds)</p> <p class="whs1"> </p> <p class="whs2"># create union group : area >= 20</p> <p class="whs1"><span style="font-family: 'Lucida Console', monospace;">aGroup3 = mesh.UnionGroups(aGroup1, aGroup2, "Area >= 20")</span></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="whs1"><span style="font-family: 'Lucida Console', monospace;">aFilter = smesh.GetFilter(smesh.FACE, smesh.FT_Area, smesh.FT_LessThan, 20.)</span></p> <p class="whs1"> </p> <p class="whs1">anIds = mesh.GetIdsFromFilter(aFilter)</p> <p class="whs1"> </p> <p class="whs1">print "Criterion: Area < 20, Nb = ", len(anIds)</p> <p class="whs1"> </p> <p class="whs2"># create a group by adding elements with area < 20</p> <p class="whs1"><span style="font-family: 'Lucida Console', monospace;">aGroup4 = mesh.CreateEmptyGroup(smesh.FACE, "Area < 20")</span></p> <p class="whs1">aGroup4.Add(anIds)</p> <p class="whs1"> </p> <p class="whs2"># create union group : area >= 20 and area < 20</p> <p class="whs1"><span style="font-family: 'Lucida Console', monospace;">aGroup5 = mesh.UnionGroups(aGroup3, aGroup4, "Any Area")</span></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_whs7"></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_whs8"> <img src="pics/union_groups3.png" x-maintain-ratio="TRUE" width="344px" height="381px" border="0" class="img_whs9"></p> <p class="whs1"> </p> <h3><a name=bookmark3>Intersection of two groups</a></h3> <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="whs2"># Criterion : AREA > 20</p> <p class="whs1">aFilter = smesh.GetFilter(smesh.FACE, smesh.FT_Area, smesh.FT_MoreThan, 20.)</p> <p class="whs1"> </p> <p class="whs1">anIds = mesh.GetIdsFromFilter(aFilter)</p> <p class="whs1"> </p> <p class="whs1">print "Criterion: Area > 20, Nb = ", len(anIds) </p> <p class="whs1"> </p> <p class="whs2"># create a group by adding elements with area > 20</p> <p class="whs1">aGroup1 = mesh.CreateEmptyGroup(SMESH.FACE, "Area > 20")</p> <p class="whs1">aGroup1.Add(anIds)</p> <p class="whs1"> </p> <p class="whs2"># Criterion : AREA < 60</p> <p class="whs1">aFilter = smesh.GetFilter(smesh.FACE, smesh.FT_Area, smesh.FT_LessThan, 60.)</p> <p class="whs1"> </p> <p class="whs1">anIds = mesh.GetIdsFromFilter(aFilter)</p> <p class="whs1"> </p> <p class="whs1">print "Criterion: Area < 60, Nb = ", len(anIds) </p> <p class="whs1"> </p> <p class="whs2"># create a group by adding elements with area < 60</p> <p class="whs1">aGroup2 = mesh.CreateEmptyGroup(SMESH.FACE, "Area < 60")</p> <p class="whs1">aGroup2.Add(anIds)</p> <p class="whs1"> </p> <p class="whs2"># create an intersection of groups : 20 < area < 60</p> <p class="whs1"><span style="font-family: 'Lucida Console', monospace;">aGroup3 = mesh.IntersectGroups(aGroup1, aGroup2, "20 < Area < 60")</span></p> <p class="whs1">print "Criterion: 20 < Area < 60, Nb = ", len(aGroup3.GetListOfID())</p> <p class="whs1"> </p> <p class="whs1">salome.sg.updateObjBrowser(1) </p> <p class="whs3"> </p> <p class="whs3"><img src="pics/intersect_groups1.png" x-maintain-ratio="TRUE" width="314px" height="351px" border="0" class="img_whs10"> <img src="pics/intersect_groups2.png" x-maintain-ratio="TRUE" width="319px" height="351px" border="0" class="img_whs11"> <img src="pics/intersect_groups3.png" x-maintain-ratio="TRUE" width="304px" height="352px" border="0" class="img_whs12"></p> <h3><a name=bookmark4>Cut of two groups</a></h3> <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="whs2"># Criterion : AREA > 20</p> <p class="whs1">aFilter = smesh.GetFilter(smesh.FACE, smesh.FT_Area, smesh.FT_MoreThan, 20.)</p> <p class="whs1"> </p> <p class="whs1">anIds = mesh.GetIdsFromFilter(aFilter)</p> <p class="whs1"> </p> <p class="whs1">print "Criterion: Area > 20, Nb = ", len(anIds) </p> <p class="whs1"> </p> <p class="whs2"># create a group by adding elements with area > 20</p> <p class="whs1"><span style="font-family: 'Lucida Console', monospace;">aGroupMain = mesh.MakeGroupByIds("Area > 20", smesh.FACE, anIds)</span></p> <p class="whs1"> </p> <p class="whs2"># Criterion : AREA < 60</p> <p class="whs1">aFilter = smesh.GetFilter(smesh.FACE, smesh.FT_Area, smesh.FT_LessThan, 60.)</p> <p class="whs1"> </p> <p class="whs1">anIds = mesh.GetIdsFromFilter(aFilter)</p> <p class="whs1"> </p> <p class="whs1">print "Criterion: Area < 60, Nb = ", len(anIds) </p> <p class="whs1"> </p> <p class="whs2"># create a group by adding elements with area < 60</p> <p class="whs1"><span style="font-family: 'Lucida Console', monospace;">aGroupTool = mesh.MakeGroupByIds("Area < 60", smesh.FACE, anIds)</span></p> <p class="whs1"> </p> <p class="whs2"># create a cut of groups : area >= 60</p> <p class="whs1"><span style="font-family: 'Lucida Console', monospace;">aGroupRes = mesh.CutGroups(aGroupMain, aGroupTool, "Area >= 60")</span></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="whs3"><img src="pics/cut_groups1.png" x-maintain-ratio="TRUE" width="318px" height="355px" border="0" class="img_whs13"> <img src="pics/cut_groups2.png" x-maintain-ratio="TRUE" width="318px" height="355px" border="0" class="img_whs14"> <img src="pics/cut_groups3.png" x-maintain-ratio="TRUE" width="320px" height="354px" border="0" class="img_whs15"></p> <script type="text/javascript" language="javascript1.2"> <!-- if (window.writeIntopicBar) writeIntopicBar(0); //--> </script> </body> </html>