+++ /dev/null
-# 3d mesh generation and mesh exploration
-
-import salome
-salome.salome_init_without_session()
-from salome.geom import geomBuilder
-geompy = geomBuilder.New()
-
-import SMESH
-from salome.smesh import smeshBuilder
-smesh = smeshBuilder.New()
-
-###
-# Geometry: an assembly of a box, a cylinder and a truncated cone
-# to be meshed with tetrahedra
-###
-
-# Define values
-name = "ex21_lamp"
-cote = 60
-section = 20
-size = 200
-radius_1 = 80
-radius_2 = 40
-height = 100
-
-# Build a box
-box = geompy.MakeBox(-cote, -cote, -cote, +cote, +cote, +cote)
-
-# Build a cylinder
-pt1 = geompy.MakeVertex(0, 0, cote/3)
-di1 = geompy.MakeVectorDXDYDZ(0, 0, 1)
-cyl = geompy.MakeCylinder(pt1, di1, section, size)
-
-# Build a truncated cone
-pt2 = geompy.MakeVertex(0, 0, size)
-cone = geompy.MakeCone(pt2, di1, radius_1, radius_2, height)
-
-# Fuse
-box_cyl = geompy.MakeFuse(box, cyl)
-piece = geompy.MakeFuse(box_cyl, cone)
-
-# Add to the study
-geompy.addToStudy(piece, name)
-
-# Create a group of faces
-faces_group = geompy.CreateGroup(piece, geompy.ShapeType["FACE"])
-group_name = name + "_grp"
-geompy.addToStudy(faces_group, group_name)
-faces_group.SetName(group_name)
-
-# Add faces to the group
-faces = geompy.SubShapeAllIDs(piece, geompy.ShapeType["FACE"])
-geompy.UnionIDs(faces_group, faces)
-
-###
-# Create a mesh
-###
-
-# Define a mesh on a geometry
-tetra = smesh.Mesh(piece, name)
-
-# Define 1D algorithm and hypothesis
-algo1d = tetra.Segment()
-algo1d.LocalLength(10)
-
-# Define 2D algorithm and hypothesis
-algo2d = tetra.Triangle()
-algo2d.LengthFromEdges()
-
-# Define 3D algorithm and hypothesis
-algo3d = tetra.Tetrahedron()
-algo3d.MaxElementVolume(100)
-
-# Compute the mesh
-tetra.Compute()
-
-# Create a mesh group of all triangles generated on geom faces present in faces_group
-group = tetra.Group(faces_group)
-
-###
-# Explore the mesh
-###
-
-# Retrieve coordinates of nodes
-coordStr = ""
-for node in tetra.GetNodesId():
- x,y,z = tetra.GetNodeXYZ( node )
- coordStr += "%s (%s, %s, %s) " % ( node, x,y,z )
- pass
-
-# Retrieve nodal connectivity of triangles
-triaStr = ""
-for tria in tetra.GetElementsByType( SMESH.FACE ):
- nodes = tetra.GetElemNodes( tria )
- triaStr += "%s (%s, %s, %s) " % ( tria, nodes[0], nodes[1], nodes[2] )
-
-# Retrieve group contents
-groupStr = ""
-for group in tetra.GetGroups():
- ids = group.GetIDs()
- name = group.GetName()
- eType = group.GetType()
- groupStr += "'%s' %s: %s \n" % ( name, eType, ids )
-
