dual_Mesh_1 = smesh.CreateDualMesh(Mesh_1, 'dual_Mesh_1', True)
dual_Mesh_raw_1 = smesh.CreateDualMesh(Mesh_1, 'dual_Mesh_1', False)
+[ top_2, middle_2, bottom_2 ] = dual_Mesh_1.GetGroups()
+
#Comparing volumes
dual_volume = dual_Mesh_1.GetVolume()
dual_raw_volume = dual_Mesh_raw_1.GetVolume()