-<h2>Example of 3d mesh generation with NETGEN:</h2>
-
-\code
-from geompy import *
-import smesh
-
-###
-# Geometry: an assembly of a box, a cylinder and a truncated cone
-# meshed with tetrahedral
-###
-
-# Define values
-name = "ex21_lamp"
-cote = 60
-section = 20
-size = 200
-radius_1 = 80
-radius_2 = 40
-height = 100
-
-# Build a box
-box = MakeBox(-cote, -cote, -cote, +cote, +cote, +cote)
-
-# Build a cylinder
-pt1 = MakeVertex(0, 0, cote/3)
-di1 = MakeVectorDXDYDZ(0, 0, 1)
-cyl = MakeCylinder(pt1, di1, section, size)
-
-# Build a truncated cone
-pt2 = MakeVertex(0, 0, size)
-cone = MakeCone(pt2, di1, radius_1, radius_2, height)
-
-# Fuse
-box_cyl = MakeFuse(box, cyl)
-piece = MakeFuse(box_cyl, cone)
-
-# Add to the study
-addToStudy(piece, name)
-
-# Create a group of faces
-group = CreateGroup(piece, ShapeType["FACE"])
-group_name = name + "_grp"
-addToStudy(group, group_name)
-group.SetName(group_name)
-
-# Add faces to the group
-faces = SubShapeAllIDs(piece, ShapeType["FACE"])
-UnionIDs(group, faces)
-
-###
-# Create a mesh
-###
-
-# Define a mesh on a geometry
-tetra = smesh.Mesh(piece, name)
-
-# Define 1D hypothesis
-algo1d = tetra.Segment()
-algo1d.LocalLength(10)
-
-# Define 2D hypothesis
-algo2d = tetra.Triangle()
-algo2d.LengthFromEdges()
-
-# Define 3D hypothesis
-algo3d = tetra.Tetrahedron(smesh.NETGEN)
-algo3d.MaxElementVolume(100)
-
-# Compute the mesh
-tetra.Compute()
-
-# Create a groupe of faces
-tetra.Group(group)
-
-\endcode
