smesh/doc/salome/gui/SMESH/input/tui_quality_controls.doc

/*!

\page tui_quality_controls_page Quality Controls

\section tui_free_borders Free Borders

\code
import salome
import geompy

import smesh

# create open shell: a box without one plane
box = geompy.MakeBox(0., 0., 0., 20., 20., 15.)
FaceList = geompy.SubShapeAll(box, geompy.ShapeType["FACE"])
FaceList.remove(FaceList[5])
box = geompy.MakeShell(FaceList)
idbox = geompy.addToStudy(box, "box")

# create a mesh
mesh = smesh.Mesh(box, "Mesh_free_borders")
algo = mesh.Segment()
algo.NumberOfSegments(5)
algo = mesh.Triangle()
algo.MaxElementArea(20.)
mesh.Compute() 

# criterion : free borders
aFilter = smesh.GetFilter(smesh.EDGE, smesh.FT_FreeBorders) 
anIds = mesh.GetIdsFromFilter(aFilter)

# print the result
print "Criterion: Free borders Nb = ", len(anIds)
j = 1
for i in range(len(anIds)):
  if j > 20: j = 1; print ""
  print anIds[i],
  j = j + 1
  pass
print ""

# create a group
aGroup = mesh.CreateGroup(SMESH.EDGE, "Free borders")
aGroup.Add(anIds)

salome.sg.updateObjBrowser(1)
\endcode

\section tui_borders_at_multiconnection Borders at Multiconnection

\code
import salome
import geompy

import smesh
import SMESH

# create open shell: a box without one plane
box = geompy.MakeBox(0., 0., 0., 20., 20., 15.)
FaceList = geompy.SubShapeAll(box, geompy.ShapeType["FACE"])
FaceList.remove(FaceList[5])
box = geompy.MakeShell(FaceList)
idbox = geompy.addToStudy(box, "box")

# create a mesh
mesh = smesh.Mesh(box, "Mesh_borders_at_multi-connections")
algo = mesh.Segment()
algo.NumberOfSegments(5)
algo = mesh.Triangle()
algo.MaxElementArea(20.)
mesh.Compute() 

# Criterion : Borders at multi-connection
nb_conn = 2

aFilter = smesh.GetFilter(smesh.EDGE, smesh.FT_MultiConnection, smesh.FT_EqualTo, nb_conn)
anIds = mesh.GetIdsFromFilter(aFilter)

# print the result
print "Criterion: Borders at multi-connections Nb = ", len(anIds)
j = 1
for i in range(len(anIds)):
  if j > 20: j = 1; print ""
  print anIds[i],
  j = j + 1
  pass
print ""

# create a group
aGroup = mesh.CreateGroup(SMESH.EDGE, "Borders at multi-connections")
aGroup.Add(anIds)

salome.sg.updateObjBrowser(1)
\endcode

\section tui_length_1d Length 1D

\code
import salome
import geompy

import smesh

# create open shell: a box without one plane
box = geompy.MakeBox(0., 0., 0., 20., 20., 15.)
FaceList = geompy.SubShapeAll(box, geompy.ShapeType["FACE"])
FaceList.remove(FaceList[5])
box = geompy.MakeShell(FaceList)
idbox = geompy.addToStudy(box, "box")

# create a mesh
mesh = smesh.Mesh(box, "Mesh_Length_1D")
algo = mesh.Segment()
algo.NumberOfSegments(5)
algo = mesh.Triangle()
algo.MaxElementArea(20.)
mesh.Compute() 

# Criterion : Length > 3.
length_margin = 3.

aFilter = smesh.GetFilter(smesh.EDGE, smesh.FT_Length, smesh.FT_MoreThan, length_margin)
anIds = mesh.GetIdsFromFilter(aFilter) 

# print the result
print "Criterion: Edges length > ", length_margin, " Nb = ", len(anIds)
j = 1
for i in range(len(anIds)):
  if j > 20: j = 1; print ""
  print anIds[i],
  j = j + 1
  pass
print ""

# create a group
aGroup = mesh.CreateGroup(SMESH.EDGE, "Edges with length > " + `length_margin`)
aGroup.Add(anIds)

salome.sg.updateObjBrowser(1)
\endcode

\section tui_free_edges Free Edges

\code
import SMESH_mechanic

smesh  = SMESH_mechanic.smesh
mesh   = SMESH_mechanic.mesh
salome = SMESH_mechanic.salome

aFilterMgr = smesh.CreateFilterManager()

# Remove some elements to obtain free edges
# Criterion : AREA > 95.
area_margin = 95.

aFilter = smesh.GetFilter(smesh.FACE, smesh.FT_Area, smesh.FT_MoreThan, area_margin)

anIds = mesh.GetIdsFromFilter(aFilter)

mesh.RemoveElements(anIds)

# Criterion : Free Edges
aBorders = mesh.GetFreeBorders() 

# create groups
aGroupF = mesh.CreateEmptyGroup(smesh.FACE, "Faces with free edges")
aGroupN = mesh.CreateEmptyGroup(smesh.NODE, "Nodes on free edges")

# fill groups with elements, corresponding to the criterion
print ""
print "Criterion: Free edges Nb = ", len(aBorders)
for i in range(len(aBorders)):
  aBorder = aBorders[i]
  print "Face # ", aBorder.myElemId, " : Edge between nodes (",
  print aBorder.myPnt1, ", ", aBorder.myPnt2, ")"

  aGroupF.Add([aBorder.myElemId])
  aGroupN.Add([aBorder.myPnt1, aBorder.myPnt2])

salome.sg.updateObjBrowser(1)
\endcode

\section tui_free_nodes Free Nodes

\code
import salome
import geompy

import smesh

# create box
box = geompy.MakeBox(0., 0., 0., 100., 200., 300.)
idbox = geompy.addToStudy(box, "box")

# create a mesh
mesh = smesh.Mesh(box, "Mesh_free_nodes")
algo = mesh.Segment()
algo.NumberOfSegments(10)
algo = mesh.Triangle(smesh.MEFISTO)
algo.MaxElementArea(150.)
mesh.Compute() 

# Remove some elements to obtain free nodes
# Criterion : AREA < 80.
area_margin = 80.

aFilter = smesh.GetFilter(smesh.FACE, smesh.FT_Area, smesh.FT_LessThan, area_margin)

anIds = mesh.GetIdsFromFilter(aFilter)

mesh.RemoveElements(anIds)

# criterion : free nodes
aFilter = smesh.GetFilter(smesh.NODE, smesh.FT_FreeNodes) 
anNodeIds = mesh.GetIdsFromFilter(aFilter)

# create a group
aGroup = mesh.CreateEmptyGroup(smesh.NODE, "Free_nodes")
aGroup.Add(anNodeIds)

# print the result
print "Criterion: Free nodes Nb = ", len(anNodeIds)
j = 1
for i in range(len(anNodeIds)):
  if j > 20: j = 1; print ""
  print anNodeIds[i],
  j = j + 1
  pass
print ""

salome.sg.updateObjBrowser(1)
\endcode

\section tui_free_faces Free Faces

\code
import salome
import geompy

####### GEOM part ########

Box_1 = geompy.MakeBoxDXDYDZ(200, 200, 200)
Box_1_vertex_6 = geompy.GetSubShape(Box_1, [6])
Box_1 = geompy.GetMainShape(Box_1_vertex_6)
Box_1_vertex_16 = geompy.GetSubShape(Box_1, [16])
Box_1 = geompy.GetMainShape(Box_1_vertex_16)
Box_1_vertex_11 = geompy.GetSubShape(Box_1, [11])
Box_1 = geompy.GetMainShape(Box_1_vertex_11)
Plane_1 = geompy.MakePlaneThreePnt(Box_1_vertex_6, Box_1_vertex_16, Box_1_vertex_11, 2000)
Partition_1 = geompy.MakePartition([Box_1], [Plane_1], [], [], geompy.ShapeType["SOLID"], 0, [], 0)

Box_1_vertex_19 = geompy.GetSubShape(Box_1, [19])
Box_1_vertex_21 = geompy.GetSubShape(Box_1, [21])
Plane_2 = geompy.MakePlaneThreePnt(Box_1_vertex_16, Box_1_vertex_19, Box_1_vertex_21, 2000)

geompy.addToStudy( Box_1, "Box_1" )
geompy.addToStudyInFather( Box_1, Box_1_vertex_6, "Box_1:vertex_6" )
geompy.addToStudyInFather( Box_1, Box_1_vertex_16, "Box_1:vertex_16" )
geompy.addToStudyInFather( Box_1, Box_1_vertex_11, "Box_1:vertex_11" )
geompy.addToStudy( Plane_1, "Plane_1" )
geompy.addToStudy( Partition_1, "Partition_1" )
geompy.addToStudyInFather( Box_1, Box_1_vertex_19, "Box_1:vertex_19" )
geompy.addToStudyInFather( Box_1, Box_1_vertex_21, "Box_1:vertex_21" )
geompy.addToStudy( Plane_2, "Plane_2" )

###### SMESH part ######
import smesh

import StdMeshers

Mesh_1 = smesh.Mesh(Partition_1)
Regular_1D = Mesh_1.Segment()
Max_Size_1 = Regular_1D.MaxSize(34.641)
MEFISTO_2D = Mesh_1.Triangle()
Tetrahedronn = Mesh_1.Tetrahedron()
isDone = Mesh_1.Compute()

# create a group of free faces
aFilter = smesh.GetFilter(smesh.FACE, smesh.FT_FreeFaces )
aFaceIds = Mesh_1.GetIdsFromFilter(aFilter)

aGroup = Mesh_1.CreateEmptyGroup(smesh.FACE, "Free_faces")
aGroup.Add(aFaceIds)

# print the result
print "Criterion: Free faces Nb = ", len(aFaceIds)
j = 1
for i in range(len(aFaceIds)):
  if j > 20: j = 1; print ""
  print aFaceIds[i],
  j = j + 1
  pass
print ""

#filter faces from plane 2
aFilter = smesh.GetFilter(smesh.FACE, smesh.FT_BelongToPlane, Plane_2)
aFaceIds = Mesh_1.GetIdsFromFilter(aFilter)
aGroup.Remove(aFaceIds)

# create a group of shared faces (located on partition boundary inside box)
aFilter = smesh.GetFilter(smesh.FACE, smesh.FT_BelongToPlane, Plane_1)
aFaceIds = Mesh_1.GetIdsFromFilter(aFilter)

aGroup = Mesh_1.CreateEmptyGroup(smesh.FACE, "Shared_faces")
aGroup.Add(aFaceIds)

salome.sg.updateObjBrowser(1)
\endcode

\section tui_bare_border_faces Bare border faces

\code
from smesh import *
SetCurrentStudy(salome.myStudy)

box = geompy.MakeBoxDXDYDZ(100, 100, 100)
geompy.addToStudy( box, "box" )

mesh = smesh.Mesh(box)
mesh.Segment().NumberOfSegments(3)
mesh.Quadrangle()
mesh.Compute()

# remove 2 faces
allFaces = mesh.GetElementsByType(FACE)
mesh.RemoveElements( allFaces[0:2])

bareGroup = mesh.MakeGroup("bare faces", FACE, FT_BareBorderFace)
assert(bareGroup.Size() == 3)
\endcode

\section tui_bare_border_volumes Bare border volumes

\code
from smesh import *
SetCurrentStudy(salome.myStudy)

box = geompy.MakeBoxDXDYDZ(100, 30, 10)
# the smallest face of the box
face = geompy.SubShapeAllSorted( box, geompy.ShapeType["FACE"])[0]

geompy.addToStudy( box, "box" )
geompy.addToStudyInFather( box, face, "face" )

mesh = Mesh(box)
mesh.AutomaticHexahedralization();

# remove half of mesh faces from the smallest face
faceFaces = mesh.GetSubMeshElementsId(face)
faceToRemove = faceFaces[: len(faceFaces)/2]
mesh.RemoveElements( faceToRemove )

# make a group of volumes missing the removed faces
bareGroup = mesh.MakeGroup("bare volumes", VOLUME, FT_BareBorderVolume)
assert(bareGroup.Size() == len( faceToRemove))
\endcode

\section tui_over_constrained_faces Over-constrained faces
\code
from smesh import *
SetCurrentStudy(salome.myStudy)

mesh = Mesh()
faceFilter = GetFilter(FACE,FT_OverConstrainedFace)

#make an edge
n1 = mesh.AddNode(0,0,0)
n2 = mesh.AddNode(10,0,0)
edge = mesh.AddEdge([n1,n2])
assert( not mesh.GetIdsFromFilter( faceFilter ))

# make faces 
mesh.ExtrusionSweep([edge], MakeDirStruct(0,7,0), 5)
assert( 2 == len( mesh.GetIdsFromFilter( faceFilter )))
\endcode

\section tui_over_constrained_volumes Over-constrained volumes
\code
from smesh import *
SetCurrentStudy(salome.myStudy)

mesh = Mesh()
volumeFilter = GetFilter(VOLUME,FT_OverConstrainedVolume)

# make volumes by extrusion of one face
n1 = mesh.AddNode(0,0,0)
n2 = mesh.AddNode(10,0,0)
edge = mesh.AddEdge([n1,n2])
mesh.ExtrusionSweep([edge], MakeDirStruct(0,7,0), 1)
mesh.ExtrusionSweep( mesh.GetElementsByType(FACE), MakeDirStruct(0,0,5), 7)
assert( 2 == len( mesh.GetIdsFromFilter( volumeFilter )))
\endcode

\section tui_length_2d Length 2D

\code
import salome
import geompy

import smesh

# create open shell: a box without one plane
box = geompy.MakeBox(0., 0., 0., 20., 20., 15.)
FaceList = geompy.SubShapeAll(box, geompy.ShapeType["FACE"])
FaceList.remove(FaceList[5])
box = geompy.MakeShell(FaceList)
idbox = geompy.addToStudy(box, "box")

# create a mesh
mesh = smesh.Mesh(box, "Mesh_Length_2D")
algo = mesh.Segment()
algo.NumberOfSegments(5)
algo = mesh.Triangle()
algo.MaxElementArea(20.)
mesh.Compute()

# Criterion : Length 2D > 5.7
length_margin = 5.7

aFilter = smesh.GetFilter(smesh.FACE, smesh.FT_Length2D, smesh.FT_MoreThan, length_margin)

anIds = mesh.GetIdsFromFilter(aFilter)

# print the result
print "Criterion: Edges length 2D > ", length_margin, " Nb = ", len(anIds)
j = 1
for i in range(len(anIds)):
  if j > 20: j = 1; print ""
  print anIds[i],
  j = j + 1
  pass
print ""

# create a group
aGroup = mesh.CreateEmptyGroup(smesh.FACE, "Faces with length 2D > " + `length_margin`)
aGroup.Add(anIds)

salome.sg.updateObjBrowser(1)
\endcode

\section tui_borders_at_multiconnection_2d Borders at Multiconnection 2D

\code
import salome
import geompy

import smesh

# create a compound of two glued boxes
box1 = geompy.MakeBox(0., 0., 0., 20., 20., 15.)
box2 = geompy.MakeTranslation(box1, 0., 20., 0)
comp = geompy.MakeCompound([box1, box2])
box = geompy.MakeGlueFaces(comp, 0.000001)
idbox = geompy.addToStudy(box, "box")

# create a mesh
mesh = smesh.Mesh(box, "Box compound : 2D triangle mesh")
algo = mesh.Segment()
algo.NumberOfSegments(5)
algo = mesh.Triangle()
algo.MaxElementArea(20.)
mesh.Compute() 

# Criterion : MULTI-CONNECTION 2D = 3
nb_conn = 3

aFilter = smesh.GetFilter(smesh.FACE, smesh.FT_MultiConnection2D, smesh.FT_EqualTo, nb_conn)

anIds = mesh.GetIdsFromFilter(aFilter) 

# print the result
print "Criterion: Borders at multi-connection 2D = ", nb_conn, " Nb = ", len(anIds)
j = 1
for i in range(len(anIds)):
  if j > 20: j = 1; print ""
  print anIds[i],
  j = j + 1
  pass
print ""

# create a group
aGroup = mesh.CreateEmptyGroup(smesh.FACE, "Borders at multi-connection 2D = " + `nb_conn`)
aGroup.Add(anIds)

salome.sg.updateObjBrowser(1)
\endcode

\section tui_area Area

\code
import SMESH_mechanic

smesh  = SMESH_mechanic.smesh
mesh   = SMESH_mechanic.mesh
salome = SMESH_mechanic.salome

# Criterion : AREA > 100.
area_margin = 100.

aFilter = smesh.GetFilter(smesh.FACE, smesh.FT_Area, smesh.FT_MoreThan, area_margin)

anIds = mesh.GetIdsFromFilter(aFilter) 

# print the result
print "Criterion: Area > ", area_margin, " Nb = ", len(anIds)
j = 1
for i in range(len(anIds)):
  if j > 20: j = 1; print ""
  print anIds[i],
  j = j + 1
  pass
print ""

# create a group
aGroup = mesh.CreateEmptyGroup(smesh.FACE, "Area > " + `area_margin`)
aGroup.Add(anIds)

salome.sg.updateObjBrowser(1)  
\endcode

\section tui_taper Taper

\code
import SMESH_mechanic

smesh  = SMESH_mechanic.smesh
mesh   = SMESH_mechanic.mesh
salome = SMESH_mechanic.salome

# Criterion : Taper > 3e-20
taper_margin = 3e-20

aFilter = smesh.GetFilter(smesh.FACE, smesh.FT_Taper, smesh.FT_MoreThan, taper_margin)

anIds = mesh.GetIdsFromFilter(aFilter) 

# print the result
print "Criterion: Taper > ", taper_margin, " Nb = ", len(anIds)
j = 1
for i in range(len(anIds)):
  if j > 20: j = 1; print ""
  print anIds[i],
  j = j + 1
  pass
print ""

# create a group
aGroup = mesh.CreateEmptyGroup(smesh.FACE, "Taper > " + `taper_margin`)
aGroup.Add(anIds)

salome.sg.updateObjBrowser(1)
\endcode

\section tui_aspect_ratio Aspect Ratio

\code
import SMESH_mechanic

smesh  = SMESH_mechanic.smesh
mesh   = SMESH_mechanic.mesh
salome = SMESH_mechanic.salome

# Criterion : ASPECT RATIO > 1.8
ar_margin = 1.8

aFilter = smesh.GetFilter(smesh.FACE, smesh.FT_AspectRatio, smesh.FT_MoreThan, ar_margin)

anIds = mesh.GetIdsFromFilter(aFilter) 

# print the result
print "Criterion: Aspect Ratio > ", ar_margin, " Nb = ", len(anIds)
j = 1
for i in range(len(anIds)):
  if j > 20: j = 1; print ""
  print anIds[i],
  j = j + 1
  pass
print ""

# create a group
aGroup = mesh.CreateEmptyGroup(smesh.FACE, "Aspect Ratio > " + `ar_margin`)
aGroup.Add(anIds)

salome.sg.updateObjBrowser(1)
\endcode

\section tui_minimum_angle Minimum Angle

\code
import SMESH_mechanic

smesh  = SMESH_mechanic.smesh
mesh   = SMESH_mechanic.mesh
salome = SMESH_mechanic.salome

# Criterion : MINIMUM ANGLE < 35.
min_angle = 35.

aFilter = smesh.GetFilter(smesh.FACE, smesh.FT_MinimumAngle, smesh.FT_LessThan, min_angle)

anIds = mesh.GetIdsFromFilter(aFilter) 

# print the result
print "Criterion: Minimum Angle < ", min_angle, " Nb = ", len(anIds)
j = 1
for i in range(len(anIds)):
  if j > 20: j = 1; print ""
  print anIds[i],
  j = j + 1
  pass
print ""

# create a group
aGroup = mesh.CreateEmptyGroup(smesh.FACE, "Minimum Angle < " + `min_angle`)

aGroup.Add(anIds)

salome.sg.updateObjBrowser(1)
\endcode

\section tui_warping Warping

\code
import SMESH_mechanic

smesh  = SMESH_mechanic.smesh
mesh   = SMESH_mechanic.mesh
salome = SMESH_mechanic.salome

# Criterion : WARP ANGLE > 1e-15
wa_margin = 1e-15

aFilter = smesh.GetFilter(smesh.FACE, smesh.FT_Warping, smesh.FT_MoreThan, wa_margin)

anIds = mesh.GetIdsFromFilter(aFilter) 

# print the result
print "Criterion: Warp > ", wa_margin, " Nb = ", len(anIds)
j = 1
for i in range(len(anIds)):
  if j > 20: j = 1; print ""
  print anIds[i],
  j = j + 1
  pass
print ""

# create a group
aGroup = mesh.CreateEmptyGroup(smesh.FACE, "Warp > " + `wa_margin`)

aGroup.Add(anIds)

salome.sg.updateObjBrowser(1) 
\endcode

\section tui_skew Skew

\code
import SMESH_mechanic

smesh  = SMESH_mechanic.smesh
mesh   = SMESH_mechanic.mesh
salome = SMESH_mechanic.salome

# Criterion : Skew > 38.
skew_margin = 38.

aFilter = smesh.GetFilter(smesh.FACE, smesh.FT_Skew, smesh.FT_MoreThan, skew_margin)

anIds = mesh.GetIdsFromFilter(aFilter)

# print the result
print "Criterion: Skew > ", skew_margin, " Nb = ", len(anIds)
j = 1
for i in range(len(anIds)):
  if j > 20: j = 1; print ""
  print anIds[i],
  j = j + 1
  pass
print ""

# create a group
aGroup = mesh.CreateEmptyGroup(smesh.FACE, "Skew > " + `skew_margin`)
aGroup.Add(anIds)

salome.sg.updateObjBrowser(1)
\endcode

\section tui_max_element_length_2d Element Diameter 2D

\code
import SMESH_mechanic

smesh  = SMESH_mechanic.smesh
mesh   = SMESH_mechanic.mesh
salome = SMESH_mechanic.salome

# Criterion : ELEMENT DIAMETER 2D > 10
mel_2d_margin = 10

aFilter = smesh.GetFilter(smesh.FACE, smesh.FT_MaxElementLength2D, smesh.FT_MoreThan, mel_2d_margin)

anIds = mesh.GetIdsFromFilter(aFilter) 

# print the result
print "Criterion: Element Diameter 2D Ratio > ", mel_2d_margin, " Nb = ", len(anIds)
j = 1
for i in range(len(anIds)):
  if j > 20: j = 1; print ""
  print anIds[i],
  j = j + 1
  pass
print ""

# create a group
aGroup = mesh.CreateEmptyGroup(smesh.FACE, "Element Diameter 2D > " + `mel_2d_margin`)
aGroup.Add(anIds)

salome.sg.updateObjBrowser(1)
\endcode

\section tui_aspect_ratio_3d Aspect Ratio 3D

\code
import SMESH_mechanic_tetra 

smesh  = SMESH_mechanic_tetra.smesh
mesh   = SMESH_mechanic_tetra.mesh
salome = SMESH_mechanic_tetra.salome

# Criterion : ASPECT RATIO 3D > 4.5
ar_margin = 4.5

aFilter = smesh.GetFilter(smesh.VOLUME, smesh.FT_AspectRatio3D, smesh.FT_MoreThan, ar_margin)

anIds = mesh.GetIdsFromFilter(aFilter) 

# print the result
print "Criterion: Aspect Ratio 3D > ", ar_margin, " Nb = ", len(anIds)
j = 1
for i in range(len(anIds)):
  if j > 20: j = 1; print ""
  print anIds[i],
  j = j + 1
  pass
print ""

# create a group
aGroup = mesh.CreateEmptyGroup(smesh.VOLUME, "Aspect Ratio 3D > " + `ar_margin`)

aGroup.Add(anIds)

salome.sg.updateObjBrowser(1)
\endcode

\section tui_volume Volume

\code
import SMESH_mechanic_tetra

smesh  = SMESH_mechanic_tetra.smesh
mesh   = SMESH_mechanic_tetra.mesh
salome = SMESH_mechanic_tetra.salome

# Criterion : VOLUME < 7.
volume_margin = 7.

aFilter = smesh.GetFilter(smesh.VOLUME, smesh.FT_Volume3D, smesh.FT_LessThan, volume_margin)

anIds = mesh.GetIdsFromFilter(aFilter) 

# print the result
print ""
print "Criterion: Volume < ", volume_margin, " Nb = ", len(anIds)
j = 1
for i in range(len(anIds)):
  if j > 20: j = 1; print ""
  print anIds[i],
  j = j + 1
  pass
print ""

# create a group
aGroup = mesh.CreateEmptyGroup(smesh.VOLUME, "Volume < " + `volume_margin`)

aGroup.Add(anIds)

salome.sg.updateObjBrowser(1) 
\endcode

\section tui_max_element_length_3d Element Diameter 3D

\code
import SMESH_mechanic_tetra

smesh  = SMESH_mechanic_tetra.smesh
mesh   = SMESH_mechanic_tetra.mesh
salome = SMESH_mechanic_tetra.salome

# Criterion : ELEMENT DIAMETER 3D > 10
mel_3d_margin = 10

aFilter = smesh.GetFilter(smesh.FACE, smesh.FT_MaxElementLength3D, smesh.FT_MoreThan, mel_3d_margin)

anIds = mesh.GetIdsFromFilter(aFilter) 

# print the result
print "Criterion: Element Diameter 3D Ratio > ", mel_3d_margin, " Nb = ", len(anIds)
j = 1
for i in range(len(anIds)):
  if j > 20: j = 1; print ""
  print anIds[i],
  j = j + 1
  pass
print ""

# create a group
aGroup = mesh.CreateEmptyGroup(smesh.FACE, "Element Diameter 3D > " + `mel_3d_margin`)
aGroup.Add(anIds)

salome.sg.updateObjBrowser(1)
\endcode

*/