smesh/doc/salome/examples/creating_meshes_ex08.py

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# Mesh Copying
import salome
salome.salome_init()
import GEOM
from salome.geom import geomBuilder
geompy = geomBuilder.New(salome.myStudy)
import SMESH, SALOMEDS
from salome.smesh import smeshBuilder
smesh = smeshBuilder.New(salome.myStudy)
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# make geometry of a box
box = geompy.MakeBoxDXDYDZ(100,100,100)
face = geompy.SubShapeAllSorted(box, geompy.ShapeType["FACE"])[0]
# generate a prismatic 3D mesh
mesh = smesh.Mesh(box)
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localAlgo = mesh.Triangle(face)
mesh.AutomaticHexahedralization()
# objects to copy
fGroup = mesh.GroupOnGeom( face, "2D on face")
nGroup = mesh.GroupOnGeom( face, "nodes on face", SMESH.NODE)
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subMesh = localAlgo.GetSubMesh()
# make a new mesh by copying different parts of the mesh
# 1. copy the whole mesh
newMesh = smesh.CopyMesh( mesh, "whole mesh copy")
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# 2. copy a group of 2D elements along with groups
newMesh = smesh.CopyMesh( fGroup, "face group copy with groups",toCopyGroups=True)
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# 3. copy a group of nodes
newMesh = smesh.CopyMesh( nGroup, "node group copy")
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# 4. copy some faces
faceIds = fGroup.GetIDs()[-10:]
newMesh = smesh.CopyMesh( mesh.GetIDSource( faceIds, SMESH.FACE ), "some faces copy")
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# 5. copy some nodes
nodeIds = nGroup.GetIDs()[-10:]
newMesh = smesh.CopyMesh( mesh.GetIDSource( nodeIds, SMESH.NODE), "some nodes copy")
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# 6. copy a sub-mesh
newMesh = smesh.CopyMesh( subMesh, "sub-mesh copy" )