smesh/test/ex_MakePolyLine.py

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import salome
salome.salome_init()
### create geometry
from salome.geom import geomBuilder
geompy = geomBuilder.New()
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Box_1 = geompy.MakeBoxDXDYDZ(200, 200, 200)
geompy.addToStudy( Box_1, 'Box_1' )
### create a mesh
import SMESH
from salome.smesh import smeshBuilder
smesh = smeshBuilder.New()
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Mesh_1 = smesh.Mesh( Box_1 )
Mesh_1.Segment().NumberOfSegments(15)
Mesh_1.Triangle()
isDone = Mesh_1.Compute()
if not isDone:
raise Exception("Error when computing Mesh")
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# define arguments for MakePolyLine
segments = []
# between nodes 20 and 1, default plane
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segments.append( SMESH.PolySegment( 20, 0, SMESH.PointStruct(-1, -1, -1), 1, 0, SMESH.PointStruct(-1, -1, -1), smesh.MakeDirStruct(0,0,0) ))
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# between nodes 1 and 100, default plane
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segments.append( SMESH.PolySegment( 1, 0, SMESH.PointStruct(-1, -1, -1), 200, 0, SMESH.PointStruct(-1, -1, -1), smesh.MakeDirStruct(0,0,0) ))
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# between nodes 200 and edge (578, 577), plane includes vector (1,1,1)
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segments.append( SMESH.PolySegment( 200, 0, SMESH.PointStruct(-1, -1, -1), 578, 577, SMESH.PointStruct(-1, -1, -1), smesh.MakeDirStruct(1,1,1) ))
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Mesh_1.MakePolyLine( segments, "1D group")
if salome.sg.hasDesktop():
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salome.sg.updateObjBrowser()