def test_tri_180_01(self): r""" Identify a reasonable tri with super tight tolerances y ^ 4 | / / | / / | / / | / / / / 1------2-------> x """ msg = ( 'CEND\n' 'BEGIN BULK\n' 'GRID,1,,0.,0.,0.\n' 'GRID,2,,1.,0.,0.\n' 'GRID,4,,2., 1.,0.\n' 'CTRIA3,100,1, 1,2,4\n' 'PSHELL,1,1,0.1\n' 'MAT1,1,3.0,, 0.3\n' 'ENDDATA' ) bdf_filename = 'ctria3.bdf' with codec_open(bdf_filename, 'w') as bdf_file: bdf_file.write(msg) model = read_bdf(bdf_filename, xref=True) eids_to_delete = get_bad_shells(model, max_theta=180., max_skew=1000., max_aspect_ratio=1000.) assert eids_to_delete == [100], eids_to_delete os.remove(bdf_filename)
def test_tri_180_01(self): r""" Identify a reasonable tri with super tight tolerances y ^ 4 | / / | / / | / / | / / / / 1------2-------> x """ msg = ('CEND\n' 'BEGIN BULK\n' 'GRID,1,,0.,0.,0.\n' 'GRID,2,,1.,0.,0.\n' 'GRID,4,,2., 1.,0.\n' 'CTRIA3,100,1, 1,2,4\n' 'PSHELL,1,1,0.1\n' 'MAT1,1,3.0,, 0.3\n' 'ENDDATA') bdf_filename = 'ctria3.bdf' with codec_open(bdf_filename, 'w') as bdf_file: bdf_file.write(msg) model = read_bdf(bdf_filename, xref=True) eids_to_delete = get_bad_shells(model, max_theta=180., max_skew=1000., max_aspect_ratio=1000.) assert eids_to_delete == [100], eids_to_delete os.remove(bdf_filename)
def test_quad_180_01(self): r""" Identify a 180+ degree quad y ^ 4 | / | | / | | / | | / | / | 1------2 |----> x \ | \| 3 """ msg = ( 'CEND\n' 'BEGIN BULK\n' 'GRID,1,,0.,0.,0.\n' 'GRID,2,,1.,0.,0.\n' 'GRID,3,,2.,-1.,0.\n' 'GRID,4,,2., 1.,0.\n' 'CQUAD4,100,1, 1,2,3,4\n' 'PSHELL,1,1,0.1\n' 'MAT1,1,3.0,, 0.3\n' 'ENDDATA' ) bdf_filename = 'cquad4.bdf' with codec_open(bdf_filename, 'w') as bdf_file: bdf_file.write(msg) model = read_bdf(bdf_filename, xref=True) eids_to_delete = get_bad_shells(model, max_theta=180., max_skew=1000., max_aspect_ratio=1000.) assert eids_to_delete == [100], eids_to_delete os.remove(bdf_filename)
def test_quad_180_01(self): r""" Identify a 180+ degree quad y ^ 4 | / | | / | | / | | / | / | 1------2 |----> x \ | \| 3 """ msg = ('CEND\n' 'BEGIN BULK\n' 'GRID,1,,0.,0.,0.\n' 'GRID,2,,1.,0.,0.\n' 'GRID,3,,2.,-1.,0.\n' 'GRID,4,,2., 1.,0.\n' 'CQUAD4,100,1, 1,2,3,4\n' 'PSHELL,1,1,0.1\n' 'MAT1,1,3.0,, 0.3\n' 'ENDDATA') bdf_filename = 'cquad4.bdf' with codec_open(bdf_filename, 'w') as bdf_file: bdf_file.write(msg) model = read_bdf(bdf_filename, xref=True) eids_to_delete = get_bad_shells(model, max_theta=180., max_skew=1000., max_aspect_ratio=1000.) assert eids_to_delete == [100], eids_to_delete os.remove(bdf_filename)