119 lines
3.4 KiB
Python
119 lines
3.4 KiB
Python
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class MeshAlgorithm(object):
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pass
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class Netgen3D(MeshAlgorithm):
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def __init__(self, **kwargs):
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self.key = smeshBuilder.NETGEN_3D
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def initialize(self, algo):
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self.algo = algo
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self.hypo = self.algo.Parameters()
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@property
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def minSize(self):
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return self.hypo.GetMinSize()
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@minSize.setter
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def minSize(self, value):
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self.hypo.SetMinSize(value)
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class MEFISTO(MeshAlgorithm):
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class Mesh(object):
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def __init__(self, geom):
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self.smesh = smeshBuilder.New()
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self.geom = geom
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self.mesh = self.smesh.Mesh(self.geom.shape, self.geom.name)
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def algo3d(self, algo: MeshAlgorithm, type = "tetrahedron"):
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smeshAlgo = self.mesh.__dict__.get(type.capitalize())
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self.meshAlgorithm3d = algo()
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self.meshAlgorithm3d.initialize(smeshAlgo(algo = self.meshAlgorithm3d.key))
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self.mesh.AddHypothesis(self.meshAlgorithm3d.hypo)
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return self.meshAlgorithm3d
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def algo2d(self, algo: MeshAlgorithm, type = "triangle"):
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smeshAlgo = self.mesh.__dict__.get(type.capitalize())
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self.meshAlgorithm2d = algo()
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self.meshAlgorithm2d.initialize(smeshAlgo(algo = self.meshAlgorithm2d.key))
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self.mesh.AddHypothesis(self.meshAlgorithm2d.hypo)
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return self.meshAlgorithm2d
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def algo1d(self, algo: MeshAlgorithm, type = "segment"):
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smeshAlgo = self.mesh.__dict__.get(type.capitalize())
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self.meshAlgorithm1d = algo()
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self.meshAlgorithm1d.initialize(smeshAlgo(algo = self.meshAlgorithm1d.key))
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self.mesh.AddHypothesis(self.meshAlgorithm1d.hypo)
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return self.meshAlgorithm1d
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def createGroups(self, prefix = None):
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prefix = prefix or ""
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for group in self.shape.groups:
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name = group.GetName()
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if name:
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name = prefix + name
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self.mesh.GroupOnGeom(group, name, SMESH.FACE)
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def compute(self):
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"""Compute mesh.
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"""
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isDone = self.mesh.Compute()
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out = ""
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err = self.mesh.GetComputeErrors()
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returncode = int(not isDone)
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return out, err, returncode
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def stats(self):
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return {
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"elements": self.mesh.NbElements(),
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"edges": self.mesh.NbEdges(),
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"faces": self.mesh.NbFaces(),
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"volumes": self.mesh.NbVolumes(),
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"tetrahedrons": self.mesh.NbTetras(),
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"prisms": self.mesh.NbPrisms(),
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"pyramids": self.mesh.NbPyramids()
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}
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def export(
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filename: str
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):
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"""Export a mesh.
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Supported formats: unv.
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:param filename:
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Name of the file to store the given mesh in.
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:return:
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Output, error messages and returncode
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"""
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out, err, returncode = "", "", 0
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ext = os.path.splitext(filename)[1][1: ]
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try:
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if ext == "unv":
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self.mesh.ExportUNV(self.mesh, filename)
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else:
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raise NotImplementedError(f"{ ext } is not supported")
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except NotImplementedError as e:
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err = e
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returncode = 1
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except Exception as e:
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err = e.details.text
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returncode = 1
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return out, err, returncode
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