salome.sg.updateObjBrowser(1)
\endcode
+<br>
+\anchor tui_free_nodes
+<h2>Free Nodes</h2>
+
+\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
+
+
+<br>
+\anchor tui_free_faces
+<h2>Free Faces</h2>
+
+\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
+import NETGENPlugin
+
+Mesh_1 = smesh.Mesh(Partition_1)
+Regular_1D = Mesh_1.Segment()
+Max_Size_1 = Regular_1D.MaxSize(34.641)
+MEFISTO_2D = Mesh_1.Triangle()
+Tetrahedron_Netgen = Mesh_1.Tetrahedron(algo=smesh.NETGEN)
+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 nodes Nb = ", len(anNodeIds)
+j = 1
+for i in range(len(aFaceIds)):
+ if j > 20: j = 1; print ""
+ print anNodeIds[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
+
+
<br>
\anchor tui_length_2d
<h2>Length 2D</h2>
salome.sg.updateObjBrowser(1)
\endcode
-*/
\ No newline at end of file
+*/
