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# Meshing of two solid whose share a Face

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• ### Meshing of two solid whose share a Face

Posted by Bonaccorsi at June 26. 2006
Hi,

I want to mesh a composition of two solids : domain = MakeCompound([domain_1,domain_2]).
Those two solids share a Face. I have to fix a boundary condition on this Face.
What do I have to build whith GEOM Component for make a meshing of domain ?

Thomas B.
• ### Re: Meshing of two solid whose share a Face

Posted by Kloss Francis at June 28. 2006
Hello,

A small code, better that a long explain (perhaps !)
from geompy import *

import smesh

# Géométrie
# =========

# 2 boites avec une face commune dont on veut la mettre dans un groupe afin d'y poser une condition limite.

# Paramètres
# ----------

nom = "ex22_group"

boite_x = 0
boite_y = 0
boite_z = 0

cote = 60

# Boites
# ------

delta = cote/2.0

boite_1  = MakeBox(boite_x-delta, boite_y-delta, boite_z-delta,  boite_x+delta, boite_y+delta, boite_z+delta)

boite_2  = MakeTranslation(boite_1, cote, 0, 0)

# Pièce
# -----

cpd = MakeCompound([boite_1, boite_2])
piece = MakeGlueFaces(cpd, 0.01)

# Groupe de face
# --------------

cl = CreateGroup(piece, ShapeType["FACE"])

cl_nom = nom + ":cl"
cl.SetName(cl_nom)

face = GetFaceNearPoint(piece, MakeVertex(boite_x+delta, 0, 0))

UnionList(cl, [face])

# Maillage
# ========

# Définition du maillage
# ----------------------

tetra = smesh.Mesh(piece, nom)

algo1d = tetra.Segment()
algo1d.LocalLength(10)

algo2d = tetra.Triangle()
algo2d.LengthFromEdges()

algo3d = tetra.Tetrahedron(smesh.NETGEN)
algo3d.MaxElementVolume(100)

tetra.Compute()

# Groupe de maille pour la condition limite
# -----------------------------------------

tetra.Group(cl)
# -------------------------

You see in the study the mesh and a group of triangle based on the geometric common face.

Francis KLOSS
• ### Re: Meshing of two solid whose share a Face

Posted by Bonaccorsi at June 28. 2006
Thanks,

it works.

Thomas B.