smesh/doc/salome/examples/transforming_meshes_ex06.py

81 lines
2.1 KiB
Python

# Merging Elements
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)
# create a face to be meshed
px = geompy.MakeVertex(100., 0. , 0. )
py = geompy.MakeVertex(0. , 100., 0. )
pz = geompy.MakeVertex(0. , 0. , 100.)
vxy = geompy.MakeVector(px, py)
arc = geompy.MakeArc(py, pz, px)
wire = geompy.MakeWire([vxy, arc])
isPlanarFace = 1
face1 = geompy.MakeFace(wire, isPlanarFace)
id_face1 = geompy.addToStudy(face1, "Face1")
# create a circle to be an extrusion path
px1 = geompy.MakeVertex( 100., 100., 0.)
py1 = geompy.MakeVertex(-100., -100., 0.)
pz1 = geompy.MakeVertex( 0., 0., 50.)
circle = geompy.MakeCircleThreePnt(py1, pz1, px1)
id_circle = geompy.addToStudy(circle, "Path")
# create a 2D mesh on the face
trias = smesh.Mesh(face1, "Face : 2D mesh")
algo1D = trias.Segment()
algo1D.NumberOfSegments(6)
algo2D = trias.Triangle()
algo2D.LengthFromEdges()
trias.Compute()
# create a path mesh
circlemesh = smesh.Mesh(circle, "Path mesh")
algo = circlemesh.Segment()
algo.NumberOfSegments(10)
circlemesh.Compute()
# extrusion of the mesh
trias.ExtrusionAlongPath([], circlemesh, circle,
1, 0, [], 0, SMESH.PointStruct(0, 0, 0))
# merge nodes
print "Number of nodes before MergeNodes:",
trias.NbNodes()
tolerance = 0.001
array_of_nodes_groups = trias.FindCoincidentNodes(tolerance)
trias.MergeNodes(array_of_nodes_groups)
print "Number of nodes after MergeNodes:", trias.NbNodes()
print ""
print "Number of elements before MergeEqualElements:"
print "Edges : ", trias.NbEdges()
print "Triangles : ", trias.NbTriangles()
print "Quadrangles: ", trias.NbQuadrangles()
print "Volumes : ", trias.NbVolumes()
# merge elements
trias.MergeEqualElements()
print "Number of elements after MergeEqualElements:"
print "Edges : ", trias.NbEdges()
print "Triangles : ", trias.NbTriangles()
print "Quadrangles: ", trias.NbQuadrangles()
print "Volumes : ", trias.NbVolumes()
salome.sg.updateObjBrowser(1)