smesh/doc/salome/examples/transforming_meshes_ex06.py
eap 64680c27c1 23617: EDF 14133 - Complete Merge Nodes / Merge Elements operations
+
1) fix bug that SMESH_MeshEditor::DoubleElements() can't duplicate all
   elements if they are of different dimension
2) Add QString GetName( Handle(SALOME_InteractiveObject)& ) that gets
   missing name from SObject.
2019-01-18 21:31:22 +03:00

87 lines
2.5 KiB
Python

# Merging Elements
import salome
salome.salome_init()
from salome.geom import geomBuilder
geompy = geomBuilder.New()
import SMESH
from salome.smesh import smeshBuilder
smesh = smeshBuilder.New()
# 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 group of all triangles currently present in the mesh
faceTriGroup = trias.Group( face1, "face triangles" )
# 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, MakeGroups=True )
# get a group "opposite" to faceTriGroup within the generated prismatic mesh
oppositeGroup = trias.GetGroupByName( faceTriGroup.GetName() + "_top" )[0]
# get edges of the groups
edgeGroup = trias.CreateDimGroup([ faceTriGroup, oppositeGroup ], SMESH.EDGE, "face edges")
# merge nodes of the groups only
print("Number of nodes before MergeNodes:", end=' ')
trias.NbNodes()
tolerance = 0.001
array_of_nodes_groups = trias.FindCoincidentNodesOnPart([faceTriGroup, oppositeGroup], 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("Faces : ", trias.NbFaces())
print("Volumes : ", trias.NbVolumes())
# merge elements of the groups
equalFaces = trias.FindEqualElements( [faceTriGroup, oppositeGroup, edgeGroup] )
trias.MergeElements( equalFaces )
print("Number of elements after MergeEqualElements:")
print("Edges : ", trias.NbEdges())
print("Faces : ", trias.NbFaces())
print("Volumes : ", trias.NbVolumes())
salome.sg.updateObjBrowser()