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126 lines
4.3 KiB
Python
126 lines
4.3 KiB
Python
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import os, pytest
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from netgen.meshing import meshsize, MeshingParameters, SetMessageImportance
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import netgen.csg as csg
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import netgen.stl as stl
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from pyngcore import TaskManager
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import json
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try:
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import netgen.occ as occ
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has_occ = True
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except ImportError:
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has_occ = False
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SetMessageImportance(0)
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def getData(mesh, mp):
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out = {}
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out['ne1d'] = len(mesh.Elements1D())
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out['ne2d'] = len(mesh.Elements2D())
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out['ne3d'] = len(mesh.Elements3D())
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# round badness to avoid fluctuations in last digits
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out["total_badness"] = float("{:.11g}".format(mesh.CalcTotalBadness(mp)))
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out["quality_histogram"] = str(list(mesh.GetQualityHistogram()))
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return out
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def checkData(mesh, mp, ref):
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data = getData(mesh, mp)
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assert ref['ne1d'] == data['ne1d']
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assert ref['ne2d'] == data['ne2d']
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assert ref['ne3d'] == data['ne3d']
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assert ref['quality_histogram'] == data['quality_histogram']
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assert ref['total_badness'] == pytest.approx(data['total_badness'], rel=1e-5)
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def getFiles(fileEnding):
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r, d, files = next(os.walk(os.path.join("..","..","tutorials")))
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return (f for f in files if f.endswith(fileEnding))
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@pytest.fixture
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def refdata():
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return json.load(open('results.json','r'))
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def getMeshingparameters(filename):
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standard = [MeshingParameters()] + [MeshingParameters(ms) for ms in (meshsize.very_coarse, meshsize.coarse, meshsize.moderate, meshsize.fine, meshsize.very_fine)]
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if filename == "shell.geo":
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return [] # do not test this example cause it needs so long...
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if filename == "extrusion.geo":
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return [] # this segfaults right now
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if filename == "manyholes2.geo":
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return [standard[1]] # this gets too big for finer meshsizes
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if filename in ("manyholes.geo", "frame.step"):
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return standard[:3] # this gets too big for finer meshsizes
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if filename == "screw.step":
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return standard[3:] # coarser meshes don't work here
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return standard
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_geofiles = [f for f in getFiles(".geo")] + [f for f in getFiles(".stl")]
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if has_occ:
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_geofiles += [f for f in getFiles(".step")]
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_geofiles.sort()
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def generateMesh(filename, mp):
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if filename.endswith(".geo"):
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geo = csg.CSGeometry(os.path.join("..","..","tutorials", filename))
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elif filename.endswith(".stl"):
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geo = stl.STLGeometry(os.path.join("..","..","tutorials", filename))
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elif filename.endswith(".step"):
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geo = occ.OCCGeometry(os.path.join("..","..","tutorials", filename))
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return geo.GenerateMesh(mp)
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def isSlowTest(filename):
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return filename in ["cubemcyl.geo", "frame.step", "revolution.geo", "manyholes.geo", "torus.geo",
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"cubemsphere.geo", "manyholes2.geo", "matrix.geo", "trafo.geo", "ellipticcone.geo",
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"period.geo", "shaft.geo", "cubeandring.geo", "ellipticcyl.geo",
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"ellipsoid.geo", "cone.geo"]
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def getParameters():
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res = []
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for f in _geofiles:
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for i,mp in enumerate(getMeshingparameters(f)):
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if isSlowTest(f):
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res.append( pytest.param(f, mp, i, marks=pytest.mark.slow ) )
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else:
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res.append( (f, mp, i) )
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return res
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@pytest.mark.parametrize(("filename", "mp", "i"), getParameters())
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def test_geoFiles(filename, mp, i, refdata):
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ref = refdata[filename]
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import filecmp
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print("load geo", filename)
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mp = MeshingParameters(mp, parallel_meshing=False)
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mesh = generateMesh(filename, mp)
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mesh.Save(filename+'_seq.vol.gz')
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with TaskManager():
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mesh_par = generateMesh(filename, mp)
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mesh_par.Save(filename+'_par.vol.gz')
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assert filecmp.cmp(filename+'_seq.vol.gz', filename+'_par.vol.gz')
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checkData(mesh, mp, ref[i])
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def generateResultFile():
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import re, time
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data = {}
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with TaskManager():
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for _file in _geofiles:
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print("generate "+_file)
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start = time.time()
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mps = getMeshingparameters(_file)
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if not mps:
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continue
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meshdata = []
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for mp in mps:
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mesh = generateMesh(_file, mp)
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meshdata.append( getData(mesh, mp) )
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data[_file] = meshdata
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print("needed", time.time() - start, "seconds")
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s = json.dumps(data, sort_keys=True, indent=4)
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open("results.json", "w").write(s)
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if __name__ == "__main__":
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generateResultFile()
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