--- /dev/null
+# -*- coding: iso-8859-1 -*-
+# Copyright (C) 2007-2022 CEA/DEN, EDF R&D, OPEN CASCADE
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+#
+# See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
+#
+
+import salome
+salome.salome_init()
+import GEOM
+from salome.geom import geomBuilder
+geompy = geomBuilder.New()
+
+import SMESH, SALOMEDS
+from salome.smesh import smeshBuilder
+smesh = smeshBuilder.New()
+import math
+
+global Face_1
+Face_1 = geompy.MakeFaceHW(100, 100, 1)
+geompy.addToStudy( Face_1, "Face_1" )
+
+smesh.UpdateStudy()
+from salome.StdMeshers import StdMeshersBuilder
+pattern = smesh.GetPattern()
+Mesh_1 = smesh.Mesh(Face_1)
+Regular_1D = Mesh_1.Segment()
+Nb_Segments_1 = Regular_1D.NumberOfSegments(10)
+Nb_Segments_1.SetDistrType( 0 )
+Quadrangle_2D = Mesh_1.Quadrangle()
+isDone = Mesh_1.Compute()
+
+# groups creation
+
+aListOfElems = [ 52, 53, 54, 55, 56, 57,
+ 62, 63, 64, 65, 66, 67,
+ 72, 73, 74, 75, 76, 77,
+ 82, 83, 84, 85, 86, 87 ]
+
+aRedGroup = Mesh_1.GetMesh().CreateGroup( SMESH.FACE, "Red" )
+aRedGroup.Add( aListOfElems );
+aRedGroup.SetColor( SALOMEDS.Color( 1, 0, 0 ) )
+
+aListOfElems = [ 55, 56, 57, 58, 59,
+ 65, 66, 67, 68, 69,
+ 75, 76, 77, 78, 79,
+ 85, 86, 87, 88, 89,
+ 95, 96, 97, 98, 99,
+ 105, 106, 107, 108, 109,
+ 115, 116, 117, 118, 119,
+ 125, 126, 127, 128, 129 ]
+
+aGreenGroup = Mesh_1.GetMesh().CreateGroup( SMESH.FACE, "Green" )
+aGreenGroup.Add( aListOfElems );
+aGreenGroup.SetColor( SALOMEDS.Color( 0, 1, 0 ) )
+
+aListOfElems = [ 63, 64, 65, 66, 67, 68,
+ 73, 74, 75, 76, 77, 78,
+ 83, 84, 85, 86, 87, 88,
+ 93, 94, 95, 96, 97, 98,
+ 103, 104, 105, 106, 107, 108,
+ 113, 114, 115, 116, 117, 118 ]
+
+aBlueGroup = Mesh_1.GetMesh().CreateGroup( SMESH.FACE, "Blue" )
+aBlueGroup.Add( aListOfElems );
+aBlueGroup.SetColor( SALOMEDS.Color( 0, 0, 1 ) )
+
+# UnionListOfGroups()
+aUnGrp = Mesh_1.UnionListOfGroups([aRedGroup, aGreenGroup, aBlueGroup], "UnionGrp" )
+
+# IntersectListOfGroups()
+aIntGrp=Mesh_1.IntersectListOfGroups([aRedGroup, aGreenGroup, aBlueGroup], "IntGrp" )
+
+# CutListOfGroups()
+aCutGrp=Mesh_1.CutListOfGroups([aRedGroup],[aGreenGroup,aBlueGroup],"CutGrp")
+
+salome.sg.updateObjBrowser()
+