mesh.SewSideElements([69, 70, 71, 72], [91, 92, 89, 90], 8, 38, 23, 58)
\endcode
+<br>
+\anchor tui_duplicate_nodes
+<h3>Duplicate nodes</h3>
+
+\code
+import salome
+import smesh
+import SMESH_test1
+
+mesh = SMESH_test1.mesh
+
+# Compute mesh
+mesh.Compute()
+
+# Without the duplication of border elements
+
+# Nodes to duplicate
+nodes1 = mesh.CreateEmptyGroup( smesh.NODE, 'nodes1' )
+nodes1.Add( [ 289, 278, 302, 285 ] )
+
+# Group of faces to replace nodes with new ones
+faces1 = mesh.CreateEmptyGroup( smesh.FACE, 'faces1' )
+faces1.Add( [ 519, 556, 557 ] )
+
+# Duplicate nodes
+print "\nMesh before the first nodes duplication:"
+print "Nodes : ", mesh.NbNodes()
+print "Edges : ", mesh.NbEdges()
+print "Triangles : ", mesh.NbTriangles()
+
+createdNodes = mesh.DoubleNodeGroupNew(nodes1, faces1)
+
+print "\nMesh after the first nodes duplication:"
+print "Nodes : ", mesh.NbNodes()
+print "Edges : ", mesh.NbEdges()
+print "Triangles : ", mesh.NbTriangles()
+
+# With the duplication of border elements
+
+# Edges to duplicate
+edges = mesh.CreateEmptyGroup( smesh.EDGE, 'edges' )
+edges.Add( [ 29, 30, 31 ] )
+
+# Nodes not to duplicate
+nodes2 = mesh.CreateEmptyGroup( smesh.NODE, 'nodes2' )
+nodes2.Add( [ 32, 5 ] )
+
+# Group of faces to replace nodes with new ones
+faces2 = mesh.CreateEmptyGroup( smesh.FACE, 'faces2' )
+faces2.Add( [ 576, 578, 580 ] )
+
+# Duplicate nodes
+print "\nMesh before the second nodes duplication:"
+print "Nodes : ", mesh.NbNodes()
+print "Edges : ", mesh.NbEdges()
+print "Triangles : ", mesh.NbTriangles()
+
+mesh_editor = mesh.DoubleNodeElemGroupNew( edges, nodes2, faces2 )
+
+print "\nMesh after the second nodes duplication:"
+print "Nodes : ", mesh.NbNodes()
+print "Edges : ", mesh.NbEdges()
+print "Triangles : ", mesh.NbTriangles()
+
+# Update object browser
+if salome.sg.hasDesktop():
+ salome.sg.updateObjBrowser(0)
+\endcode
+
*/
