2022-04-11 18:28:01 +05:00
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# Mesh Copying
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import salome
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salome.salome_init_without_session()
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import SMESH
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from salome.geom import geomBuilder
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from salome.smesh import smeshBuilder
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geom_builder = geomBuilder.New()
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smesh_builder = smeshBuilder.New()
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# make geometry of a box
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box = geom_builder.MakeBoxDXDYDZ(100,100,100)
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face = geom_builder.SubShapeAllSorted(box, geom_builder.ShapeType["FACE"])[0]
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# generate a prismatic 3D mesh
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mesh = smesh_builder.Mesh(box, "box")
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localAlgo = mesh.Triangle(face)
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mesh.Segment().NumberOfSegments( 3 )
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mesh.Quadrangle()
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mesh.Prism()
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2023-02-21 18:59:44 +05:00
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if not mesh.Compute(): raise Exception("Error when computing Mesh")
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2022-04-11 18:28:01 +05:00
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# objects to copy
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fGroup = mesh.GroupOnGeom( face, "2D on face")
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nGroup = mesh.GroupOnGeom( face, "nodes on face", SMESH.NODE)
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subMesh = localAlgo.GetSubMesh()
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# make a new mesh by copying different parts of the mesh
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# 1. copy the whole mesh
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newMesh = smesh_builder.CopyMesh( mesh, "whole mesh copy")
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# 2. copy a group of 2D elements along with groups
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newMesh = smesh_builder.CopyMesh( fGroup, "face group copy with groups",toCopyGroups=True)
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# 3. copy a group of nodes
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newMesh = smesh_builder.CopyMesh( nGroup, "node group copy")
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# 4. copy some faces
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faceIds = fGroup.GetIDs()[-10:]
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newMesh = smesh_builder.CopyMesh( mesh.GetIDSource( faceIds, SMESH.FACE ), "some faces copy")
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# 5. copy some nodes
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nodeIds = nGroup.GetIDs()[-10:]
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newMesh = smesh_builder.CopyMesh( mesh.GetIDSource( nodeIds, SMESH.NODE), "some nodes copy")
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# 6. copy a sub-mesh
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newMesh = smesh_builder.CopyMesh( subMesh, "sub-mesh copy" )
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# make a new mesh with same hypotheses on a modified geometry
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smallBox = geom_builder.MakeScaleAlongAxes( box, None, 1, 0.5, 0.5 )
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cutBox = geom_builder.MakeCut( box, smallBox, theName="box - smallBox" )
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ok, newMesh, groups, submehses, hyps, invIDs = smesh_builder.CopyMeshWithGeom( mesh, cutBox, "cutBox" )
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2023-02-21 18:59:44 +05:00
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if not newMesh.Compute(): raise Exception("Error when computing Mesh")
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