smesh/doc/salome/examples/modifying_meshes_ex16.py

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# Diagonal Inversion
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import salome
salome.salome_init()
import GEOM
from salome.geom import geomBuilder
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geompy = geomBuilder.New()
import SMESH, SALOMEDS
from salome.smesh import smeshBuilder
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smesh = smeshBuilder.New()
import salome_notebook
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# create an empty mesh structure
mesh = smesh.Mesh()
# create the following mesh:
# .----.----.----.
# | /| /| /|
# | / | / | / |
# | / | / | / |
# |/ |/ |/ |
# .----.----.----.
bb = [0, 0, 0, 0]
tt = [0, 0, 0, 0]
ff = [0, 0, 0, 0, 0, 0]
bb[0] = mesh.AddNode( 0., 0., 0.)
bb[1] = mesh.AddNode(10., 0., 0.)
bb[2] = mesh.AddNode(20., 0., 0.)
bb[3] = mesh.AddNode(30., 0., 0.)
tt[0] = mesh.AddNode( 0., 15., 0.)
tt[1] = mesh.AddNode(10., 15., 0.)
tt[2] = mesh.AddNode(20., 15., 0.)
tt[3] = mesh.AddNode(30., 15., 0.)
ff[0] = mesh.AddFace([bb[0], bb[1], tt[1]])
ff[1] = mesh.AddFace([bb[0], tt[1], tt[0]])
ff[2] = mesh.AddFace([bb[1], bb[2], tt[2]])
ff[3] = mesh.AddFace([bb[1], tt[2], tt[1]])
ff[4] = mesh.AddFace([bb[2], bb[3], tt[3]])
ff[5] = mesh.AddFace([bb[2], tt[3], tt[2]])
# inverse the diagonal bb[1] - tt[2]
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print("\nDiagonal inversion ... ", end=' ')
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res = mesh.InverseDiag(bb[1], tt[2])
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if not res: print("failed!")
else: print("done.")
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salome.sg.updateObjBrowser()