doc/examples/quality_controls_ex01.py

   1 # Free Borders
   2
   3 import salome
   4 salome.salome_init_without_session()
   5
   6 import SMESH
   7 from salome.geom import geomBuilder
   8 from salome.smesh import smeshBuilder
   9
  10 geom_builder = geomBuilder.New()
  11 smesh_builder = smeshBuilder.New()
  12
  13 # create open shell: a box without one plane
  14 box = geom_builder.MakeBox(0., 0., 0., 20., 20., 15.)
  15 FaceList = geom_builder.SubShapeAll(box, geom_builder.ShapeType["FACE"])
  16 FaceList.remove(FaceList[5])
  17 box = geom_builder.MakeShell(FaceList)
  18 idbox = geom_builder.addToStudy(box, "box")
  19
  20 # create a mesh
  21 mesh = smesh_builder.Mesh(box, "Mesh_free_borders")
  22 algo = mesh.Segment()
  23 algo.NumberOfSegments(5)
  24 algo = mesh.Triangle()
  25 algo.MaxElementArea(20.)
  26 mesh.Compute()
  27
  28 # criterion : free borders
  29 aFilter = smesh_builder.GetFilter(SMESH.EDGE, SMESH.FT_FreeBorders)
  30 anIds = mesh.GetIdsFromFilter(aFilter)
  31
  32 # print the result
  33 print("Criterion: Free borders Nb = ", len(anIds))
  34 j = 1
  35 for i in range(len(anIds)):
  36   if j > 20: j = 1; print("")
  37   print(anIds[i], end=' ')
  38   j = j + 1
  39   pass
  40 print("")
  41
  42 # create a group
  43 aGroup = mesh.GetMesh().CreateGroup(SMESH.EDGE, "Free borders")
  44 aGroup.Add(anIds)