+# -*- 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()
+
+# Geometry
+# ========
+
+# With hexahedral, build a box partially holed by a not centered cylinder with a thickness
+
+# Values
+# ------
+
+box_dx = 1000
+box_dy = 900
+box_dz = 800
+
+cyl_x = 500
+cyl_y = 300
+cyl_dz = 600
+cyl_radius = 150
+cyl_thick = 30
+
+# Triangular face
+# ---------------
+
+def triangle(p1, p2, p3):
+ l = []
+ l.append(geompy.MakeEdge(p1, p2))
+ l.append(geompy.MakeEdge(p2, p3))
+ l.append(geompy.MakeEdge(p3, p1))
+ w = geompy.MakeWire(l)
+ return geompy.MakeFace(w, 1)
+
+# The holed part
+# ==============
+
+# Vertex of the holed part
+# ------------------------
+
+hole_point_11 = geompy.MakeVertex(0 , 0 , 0)
+hole_point_21 = geompy.MakeVertex(box_dx, 0 , 0)
+hole_point_12 = geompy.MakeVertex(0 , box_dy, 0)
+hole_point_22 = geompy.MakeVertex(box_dx, box_dy, 0)
+
+hole_center = geompy.MakeVertex(cyl_x, cyl_y, 0)
+
+# Faces of the holed part
+# -----------------------
+
+hole_face_1 = triangle(hole_point_11, hole_point_21, hole_center)
+hole_face_2 = triangle(hole_point_21, hole_point_22, hole_center)
+hole_face_3 = triangle(hole_point_12, hole_point_22, hole_center)
+hole_face_4 = triangle(hole_point_11, hole_point_12, hole_center)
+
+# Solids of the holed part
+# ------------------------
+
+cyl_dir = geompy.MakeVectorDXDYDZ(0, 0, 1)
+
+hole_solid_1 = geompy.MakePrismVecH(hole_face_1, cyl_dir, cyl_dz)
+hole_solid_2 = geompy.MakePrismVecH(hole_face_2, cyl_dir, cyl_dz)
+hole_solid_3 = geompy.MakePrismVecH(hole_face_3, cyl_dir, cyl_dz)
+hole_solid_4 = geompy.MakePrismVecH(hole_face_4, cyl_dir, cyl_dz)
+
+hole_internal = geompy.MakeCylinder(hole_center, cyl_dir, cyl_radius , cyl_dz)
+hole_external = geompy.MakeCylinder(hole_center, cyl_dir, cyl_radius+cyl_thick, cyl_dz)
+hole_median = geompy.MakeCut(hole_external, hole_internal)
+
+# Boolean operations
+# ------------------
+
+blocks = []
+
+blocks.append( geompy.MakeCut(hole_solid_1, hole_external))
+blocks.append(geompy.MakeCommon(hole_solid_1, hole_median ))
+
+blocks.append( geompy.MakeCut(hole_solid_2, hole_external))
+blocks.append(geompy.MakeCommon(hole_solid_2, hole_median ))
+
+blocks.append( geompy.MakeCut(hole_solid_3, hole_external))
+blocks.append(geompy.MakeCommon(hole_solid_3, hole_median ))
+
+blocks.append( geompy.MakeCut(hole_solid_4, hole_external))
+blocks.append(geompy.MakeCommon(hole_solid_4, hole_median ))
+
+# The full part
+# =============
+
+# Vertex of the full part
+# -----------------------
+
+full_point_11 = geompy.MakeVertex(0 , 0 , cyl_dz)
+full_point_21 = geompy.MakeVertex(box_dx, 0 , cyl_dz)
+full_point_12 = geompy.MakeVertex(0 , box_dy, cyl_dz)
+full_point_22 = geompy.MakeVertex(box_dx, box_dy, cyl_dz)
+
+full_center = geompy.MakeVertex(cyl_x, cyl_y, cyl_dz)
+
+# Faces of the full part
+# ----------------------
+
+full_face_1 = triangle(full_point_11, full_point_21, full_center)
+full_face_2 = triangle(full_point_21, full_point_22, full_center)
+full_face_3 = triangle(full_point_12, full_point_22, full_center)
+full_face_4 = triangle(full_point_11, full_point_12, full_center)
+
+# Solids of the full part
+# ------------------------
+
+full_dz = box_dz - cyl_dz
+
+full_solid_1 = geompy.MakePrismVecH(full_face_1, cyl_dir, full_dz)
+full_solid_2 = geompy.MakePrismVecH(full_face_2, cyl_dir, full_dz)
+full_solid_3 = geompy.MakePrismVecH(full_face_3, cyl_dir, full_dz)
+full_solid_4 = geompy.MakePrismVecH(full_face_4, cyl_dir, full_dz)
+
+full_internal = geompy.MakeCylinder(full_center, cyl_dir, cyl_radius , full_dz)
+full_external = geompy.MakeCylinder(full_center, cyl_dir, cyl_radius+cyl_thick, full_dz)
+full_median = geompy.MakeCut(full_external, full_internal)
+
+# Boolean operations
+# ------------------
+
+full = []
+
+full.append( geompy.MakeCut(full_solid_1, full_external))
+full.append(geompy.MakeCommon(full_solid_1, full_median))
+
+full.append( geompy.MakeCut(full_solid_2, full_external))
+full.append(geompy.MakeCommon(full_solid_2, full_median ))
+
+full.append( geompy.MakeCut(full_solid_3, full_external))
+full.append(geompy.MakeCommon(full_solid_3, full_median))
+
+full.append( geompy.MakeCut(full_solid_4, full_external))
+full.append(geompy.MakeCommon(full_solid_4, full_median))
+
+# Filling the hole
+# ----------------
+
+box_d = cyl_radius/3
+
+x = cyl_x-box_d
+y = x * cyl_y / cyl_x
+box_point_11 = geompy.MakeVertex(x, y, cyl_dz)
+
+x = cyl_x+box_d
+y = (box_dx - x) * cyl_y / (box_dx - cyl_x)
+box_point_12 = geompy.MakeVertex(x, y, cyl_dz)
+
+x = cyl_x-box_d
+y = box_dy - x * (box_dy - cyl_y) / cyl_x
+box_point_21 = geompy.MakeVertex(x, y, cyl_dz)
+
+x = cyl_x+box_d
+y = box_dy - (box_dx - x) * (box_dy - cyl_y) / (box_dx - cyl_x)
+box_point_22 = geompy.MakeVertex(x, y, cyl_dz)
+
+box_face = geompy.MakeQuad4Vertices(box_point_11, box_point_12, box_point_21, box_point_22)
+
+box = geompy.MakePrismVecH(box_face, cyl_dir, full_dz)
+
+full.append(box)
+
+full.append(geompy.MakeCut(geompy.MakeCommon(full_solid_1, full_internal), box))
+full.append(geompy.MakeCut(geompy.MakeCommon(full_solid_2, full_internal), box))
+full.append(geompy.MakeCut(geompy.MakeCommon(full_solid_3, full_internal), box))
+full.append(geompy.MakeCut(geompy.MakeCommon(full_solid_4, full_internal), box))
+
+# Cut the cylinder thickness
+# -------------------------
+
+full_plan = geompy.MakePlane(geompy.MakeVertex(0, 0, cyl_dz+cyl_thick), cyl_dir, 5000)
+
+full_parts = geompy.MakePartition(full, [full_plan], [], [], geompy.ShapeType["SOLID"])
+
+# Geometry result
+# ---------------
+
+blocks.append(full_parts)
+
+piece_cpd = geompy.MakeCompound(blocks)
+
+piece_ok = geompy.RemoveExtraEdges(piece_cpd, doUnionFaces=True)
+
+piece = geompy.MakeGlueFaces(piece_ok, 1.e-3)
+
+piece_id = geompy.addToStudy(piece, "ex13_hole1partial")
+
+# Meshing
+# =======
+
+# Create a mesh
+# -------------
+
+hexa = smesh.Mesh(piece, "ex13_hole1partial:hexa")
+
+algo = hexa.Segment()
+algo.NumberOfSegments(2)
+
+hexa.Quadrangle()
+
+hexa.Hexahedron()
+
+# Local hypothesis
+# ----------------
+
+def local(x, y, z, d):
+ edge = geompy.GetEdgeNearPoint(piece, geompy.MakeVertex(x, y, z))
+ algo = hexa.Segment(edge)
+ algo.NumberOfSegments(d)
+ algo.Propagation()
+
+local(0, 0, 100, 40)
+local(0, 0, 700, 15)
+
+local(100, 0, 0, 20)
+local(0, 100, 0, 20)
+
+local(100, 100, 0, 25)
+
+d = cyl_radius-3*cyl_thick
+local(cyl_x+d, cyl_y+d, box_dz, 10)
+
+# Compute the mesh
+# ----------------
+
+hexa.Compute()
+
+# Update object browser
+# ---------------------
+
+salome.sg.updateObjBrowser()
