--- /dev/null
+# -*- coding: iso-8859-1 -*-
+# Copyright (C) 2007-2022 CEA/DEN, EDF R&D, OPEN CASCADE
+#
+# Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
+# CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
+#
+# 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()
+
+# Geometrie
+# =========
+
+# Construire avec des hexahedres une piece faite de 2 cylindres de diametre different
+# et dont les axes se coupent orthogonalement, puis mailler.
+
+# Valeurs
+# -------
+
+cx = 0
+cy = 0
+cz = 0
+
+g_rayon = 100.0
+g_hauteur = 500
+
+p_rayon = 50.0
+p_hauteur = 500
+
+g_trim = 1000
+
+# Gros cylindre
+# -------------
+
+cpd = []
+
+g_base = geompy.MakeVertex(cx, cy, cz)
+g_dir = geompy.MakeVectorDXDYDZ(0, 0, 1)
+t_hauteur = p_rayon+10.0
+
+g_cyl = geompy.MakeCylinder(g_base, g_dir, g_rayon, g_hauteur)
+
+g_coupe = geompy.MakeVectorDXDYDZ(1, 0, 0)
+
+g_tools = []
+g_tools.append(geompy.MakePlane(geompy.MakeVertex(cx+t_hauteur, cy, cz), g_coupe, g_trim))
+g_tools.append(geompy.MakePlane(geompy.MakeVertex(cx-t_hauteur, cy, cz), g_coupe, g_trim))
+
+g_partie = geompy.MakePartition([g_cyl], g_tools, [], [], geompy.ShapeType["SOLID"])
+g_bas, g_centre, g_haut = geompy.SubShapeAllSorted(g_partie, geompy.ShapeType["SOLID"])
+
+# Partie basse du gros cylindre
+# -----------------------------
+
+b_hauteur = 10
+b_base = 20
+
+b_boite = geompy.MakeBox(cx-t_hauteur, cy-b_base, cz, cx-t_hauteur-b_hauteur, cy+b_base, cz+g_hauteur)
+cpd.append(b_boite)
+
+b_cyl = geompy.MakeCut(g_bas, b_boite)
+
+b_tools = []
+b_tools.append(geompy.MakePlane(geompy.MakeVertex(cx-t_hauteur-b_hauteur, cy+b_base, cz), geompy.MakeVectorDXDYDZ( 1, 1, 0), g_trim))
+b_tools.append(geompy.MakePlane(geompy.MakeVertex(cx-t_hauteur-b_hauteur, cy-b_base, cz), geompy.MakeVectorDXDYDZ(-1, 1, 0), g_trim))
+
+b_partie = geompy.MakePartition([b_cyl], b_tools, [], [], geompy.ShapeType["SOLID"])
+b_element = geompy.SubShapeAll(b_partie, geompy.ShapeType["SOLID"])
+cpd = cpd + b_element
+
+# Partie haute du gros cylindre
+# -----------------------------
+
+h_plan = geompy.MakePlane(g_base, g_coupe, g_trim)
+
+cpd.append(geompy.MakeMirrorByPlane(b_boite, h_plan))
+
+for h in b_element:
+ h_symetrie = geompy.MakeMirrorByPlane(h, h_plan)
+ cpd.append(h_symetrie)
+
+# Petit cylindre
+# --------------
+
+z_arete = p_rayon/2
+x_arete = z_arete*t_hauteur*2/g_hauteur
+
+px = cx-x_arete
+py = cy-1.5*g_rayon
+pz = cz+g_hauteur/2
+
+p_base = geompy.MakeVertex(cx, py, pz)
+p_dir = geompy.MakeVectorDXDYDZ(0, 1, 0)
+p_cyl = geompy.MakeCylinder(p_base, p_dir, p_rayon, p_hauteur)
+
+p_boite = geompy.MakeBox(px, py, pz-z_arete, cx+x_arete, py+p_hauteur, pz+z_arete)
+
+# Partie interieure du petit cylindre
+# -----------------------------------
+
+i_cyl = geompy.MakeCommon(p_cyl, g_cyl)
+i_tuyau = geompy.MakeCut(i_cyl, p_boite)
+i_boite = geompy.MakeCommon(p_boite, g_cyl)
+
+# Partie exterieure du petit cylindre
+# -----------------------------------
+
+e_cyl0 = geompy.MakeCut(p_cyl, g_cyl)
+e_cyl = geompy.SubShapeAllSorted(e_cyl0, geompy.ShapeType["SOLID"])
+
+e_tuyau = geompy.MakeCut(e_cyl[1], p_boite)
+
+e_boite0 = geompy.MakeCut(p_boite, g_cyl)
+e_boite = geompy.SubShapeAllSorted(e_boite0, geompy.ShapeType["SOLID"])
+
+cpd.append(e_boite[1])
+
+# Partie centrale du gros cylindre
+# --------------------------------
+
+c_cyl = geompy.MakeCut(g_centre, p_cyl)
+
+# Partitionner
+# ------------
+
+p_tools = []
+p_tools.append(geompy.MakePlane(geompy.MakeVertex(px, py, pz-z_arete), geompy.MakeVectorDXDYDZ(-z_arete, 0, x_arete), g_trim))
+p_tools.append(geompy.MakePlane(geompy.MakeVertex(px, py, pz+z_arete), geompy.MakeVectorDXDYDZ( z_arete, 0, x_arete), g_trim))
+
+p_partie = geompy.MakePartition([e_tuyau], p_tools, [], [], geompy.ShapeType["SOLID"])
+p_element = geompy.SubShapeAll(p_partie, geompy.ShapeType["SOLID"])
+cpd = cpd + p_element
+
+q_partie = geompy.MakePartition([i_tuyau, c_cyl], p_tools, [], [], geompy.ShapeType["SOLID"])
+q_element = geompy.SubShapeAll(q_partie, geompy.ShapeType["SOLID"])
+
+q_element = q_element + [i_boite]
+
+q_tools = []
+q_tools.append(geompy.MakePlane(geompy.MakeVertex(cx, cy-b_base, cz), geompy.MakeVectorDXDYDZ(0, 1, 0), g_trim))
+q_tools.append(geompy.MakePlane(geompy.MakeVertex(cx, cy+b_base, cz), geompy.MakeVectorDXDYDZ(0, 1, 0), g_trim))
+
+r_element = []
+for e in q_element:
+ r_partie = geompy.MakePartition([e], q_tools, [], [], geompy.ShapeType["SOLID"])
+ r_element = r_element + geompy.SubShapeAll(r_partie, geompy.ShapeType["SOLID"])
+
+cpd = cpd + r_element
+
+# Compound
+# --------
+
+piece = geompy.RemoveExtraEdges(geompy.MakeCompound(cpd), True)
+
+# Ajouter la piece dans l'etude
+# -----------------------------
+
+piece_id = geompy.addToStudy(piece, "ex15_cyl2geometry")
+
+# Meshing
+# =======
+
+# Create a hexahedral mesh
+# ------------------------
+
+hexa = smesh.Mesh(piece, "ex15_cyl2geometry:hexa")
+
+algo = hexa.Segment()
+algo.NumberOfSegments(12)
+
+hexa.Quadrangle()
+
+hexa.Hexahedron()
+
+# Mesh calculus
+# -------------
+
+hexa.Compute()
+
+# Update object browser
+# ---------------------
+
+salome.sg.updateObjBrowser()
