mirror of
https://git.salome-platform.org/gitpub/modules/smesh.git
synced 2024-12-25 17:00:34 +05:00
135 lines
3.3 KiB
Python
135 lines
3.3 KiB
Python
#!/usr/bin/env python
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import sys
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import salome
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salome.salome_init()
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from os import path
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import tempfile
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import subprocess
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import GEOM, SMESH, SALOMEDS
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from salome.geom import geomBuilder
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from salome.smesh import smeshBuilder
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import math
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smesh = smeshBuilder.New()
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geompy = geomBuilder.New()
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import medcoupling as mc
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def create_param_file(param_file):
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""" Create a parameter file for runner """
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param = """1
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34.64
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0.14
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16
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0.15
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1.5
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0
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0
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1
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5
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1
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1
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-1
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3
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3
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0.2
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2
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1
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0
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0
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2
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2
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0
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0
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0
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0"""
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with open(param_file, "w") as ffile:
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ffile.write(param)
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def test_netgen3d():
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""" Test netgen3d mesher """
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# Building geometry
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box = geompy.MakeBoxDXDYDZ(200, 200, 200)
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geompy.ExtractShapes(box, geompy.ShapeType["FACE"], True)
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groupe_1 = geompy.CreateGroup(box, geompy.ShapeType["FACE"])
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geompy.UnionIDs(groupe_1, [3, 13, 23, 27, 31, 33])
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[_, _, _, _, _, _, groupe_1] = geompy.GetExistingSubObjects(box, False)
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# Creating 2D mesh
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netgen_2d_parameters_1 = smesh.CreateHypothesisByAverageLength(
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'NETGEN_Parameters_2D', 'NETGENEngine', 34.641, 0)
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mesh_2d = smesh.Mesh(groupe_1, 'Maillage_1')
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mesh_2d.AddHypothesis(groupe_1, netgen_2d_parameters_1)
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mesh_2d.Triangle(algo=smeshBuilder.NETGEN_1D2D)
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isDone = mesh_2d.Compute()
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if not isDone:
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raise Exception("Error when computing Mesh")
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smesh.SetName(mesh_2d, 'Maillage_1')
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with tempfile.TemporaryDirectory() as tmp_dir:
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mesh_file = path.join(tmp_dir, "mesh.med")
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shape_file = path.join(tmp_dir, "shape.step")
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param_file = path.join(tmp_dir, "param.txt")
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output_mesh = path.join(tmp_dir, "mesh3D.med")
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print("Running in folder: ", tmp_dir)
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create_param_file(param_file)
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mesh_2d.ExportMED(mesh_file, 0, 41, 1, mesh_2d, 1, [], '', -1, 1)
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geompy.ExportSTEP(box, shape_file, GEOM.LU_METER)
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runner = path.join("${NETGENPLUGIN_ROOT_DIR}",
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"bin",
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"salome",
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"NETGENPlugin_Runner")
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if sys.platform == 'win32':
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runner += ".exe"
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cmd = "{runner} NETGEN3D {mesh_file} {shape_file} "\
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"{param_file} NONE NONE {output_mesh}"\
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.format(runner=runner,
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mesh_file=mesh_file,
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shape_file=shape_file,
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param_file=param_file,
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output_mesh=output_mesh)
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print(cmd)
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subprocess.check_call(cmd, shell=True)
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mesh_read = mc.ReadUMeshFromFile(output_mesh, "MESH", 0)
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nb_tetras = mesh_read.getNumberOfCellsWithType(mc.NORM_TETRA4)
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nb_points = mesh_read.getNumberOfNodes()
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mesh_read = mc.ReadUMeshFromFile(output_mesh, "MESH", -1)
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nb_triangles = mesh_read.getNumberOfCellsWithType(mc.NORM_TRI3)
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mesh_read = mc.ReadUMeshFromFile(output_mesh, "MESH", -2)
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nb_segments = mesh_read.getNumberOfCellsWithType(mc.NORM_SEG2)
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print("Nb Tetras:", nb_tetras)
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print("Nb Triangles:", nb_triangles)
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print("Nb Segments:", nb_segments)
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print("Nb Points:", nb_points)
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assert nb_points > 0
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assert nb_segments > 0
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assert nb_triangles > 0
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assert nb_tetras > 0
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if __name__ == "__main__":
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if sys.platform == "win32":
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print("Disabled on windows")
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sys.exit(0)
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test_netgen3d()
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