smesh/doc/salome/examples/quality_controls_ex11.py

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# Length 2D
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import salome
salome.salome_init()
import GEOM
from salome.geom import geomBuilder
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geompy = geomBuilder.New()
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import SMESH, SALOMEDS
from salome.smesh import smeshBuilder
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smesh = smeshBuilder.New()
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# create open shell: a box without one plane
box = geompy.MakeBox(0., 0., 0., 20., 20., 15.)
FaceList = geompy.SubShapeAll(box, geompy.ShapeType["FACE"])
FaceList.remove(FaceList[5])
box = geompy.MakeShell(FaceList)
idbox = geompy.addToStudy(box, "box")
# create a mesh
mesh = smesh.Mesh(box, "Mesh_Length_2D")
algo = mesh.Segment()
algo.NumberOfSegments(5)
algo = mesh.Triangle()
algo.MaxElementArea(20.)
mesh.Compute()
# Criterion : Length 2D > 5.7
length_margin = 5.7
aFilter = smesh.GetFilter(SMESH.FACE, SMESH.FT_Length2D, SMESH.FT_MoreThan, length_margin)
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anIds = mesh.GetIdsFromFilter(aFilter)
# print the result
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print("Criterion: Edges length 2D > ", length_margin, " Nb = ", len(anIds))
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j = 1
for i in range(len(anIds)):
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if j > 20: j = 1; print("")
print(anIds[i], end=' ')
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j = j + 1
pass
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print("")
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# create a group
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aGroup = mesh.CreateEmptyGroup(SMESH.FACE, "Faces with length 2D > " + repr(length_margin))
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aGroup.Add(anIds)
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salome.sg.updateObjBrowser()