def test_nastran_to_ugrid_01(self):
bdf_filename = os.path.join(model_path, "solid_bending", "solid_bending.bdf")
size = 8
debug = True
model = read_bdf(bdf_filename, log=None, debug=debug)
log = model.log
# model.skin_solid_elements()
skin_bdf_filename = os.path.join(model_path, "solid_bending", "solid_skin.bdf")
model.write_skin_solid_faces(
skin_bdf_filename, write_solids=True, write_shells=True, size=size, is_double=False, encoding=None
)
bdf_model = read_bdf(skin_bdf_filename, log=log, debug=debug)
ugrid_filename_out = os.path.join(model_path, "solid_bending", "solid_skin.b8.ugrid")
nastran_to_ugrid(bdf_model, ugrid_filename_out, properties=None, check_shells=True, check_solids=True)
ugrid = read_ugrid(ugrid_filename_out, encoding=None, log=log, debug=debug)
skin_bdf_filename2 = os.path.join(model_path, "solid_bending", "solid_skin2.bdf")
ugrid.write_bdf(
skin_bdf_filename2,
include_shells=True,
include_solids=True,
convert_pyram_to_penta=True,
encoding=None,
size=size,
is_double=False,
)
model2 = read_bdf(skin_bdf_filename2, log=log, debug=debug)
os.remove(ugrid_filename_out)
os.remove(skin_bdf_filename)
os.remove(skin_bdf_filename2)
def test_ugrid_01(self):
"""tests solid_bending.bdf"""
nastran_filename1 = os.path.join(nastran_path, 'solid_bending', 'solid_bending.bdf')
ugrid_filename = os.path.join(nastran_path, 'solid_bending', 'solid_bending.b8.ugrid')
nastran_to_ugrid(nastran_filename1, ugrid_filename_out=ugrid_filename,
properties=None, check_shells=False, check_solids=True)
assert os.path.exists(ugrid_filename), ugrid_filename
nastran_filename2 = os.path.join(nastran_path, 'solid_bending', 'solid_bending2.bdf')
model = ugrid3d_to_nastran(ugrid_filename, nastran_filename2,
include_shells=True, include_solids=True,
convert_pyram_to_penta=False,
encoding=None, size=16,
is_double=False)
assert os.path.exists(nastran_filename2), nastran_filename2
#tecplot_filename1 = os.path.join(nastran_path, 'solid_bending', 'solid_bending.plt')
#ugrid3d_to_tecplot_filename(model, tecplot_filename1)
#assert os.path.exists(tecplot_filename1), tecplot_filename1
tecplot_filename2 = os.path.join(nastran_path, 'solid_bending', 'solid_bending2.plt')
tecplot = ugrid_to_tecplot(model)
tecplot.write_tecplot(tecplot_filename2, res_types=None,
is_points=True,
adjust_nids=True)
assert os.path.exists(tecplot_filename2), tecplot_filename2
def process_nastran(bdf_filename, fmt2, fname2, data=None, debug=True):
"""
Converts Nastran to STL/Cart3d/Tecplot/UGRID3d
"""
assert fmt2 in ['stl', 'cart3d', 'tecplot', 'ugrid', 'nastran'], 'format2=%s' % fmt2
xref = True
if fmt2 == 'ugrid':
xref = False
model = BDF(debug=debug)
model.read_bdf(bdf_filename, xref=xref)
if data['--scale'] != 1.0:
scale = data['--scale']
data['--scale'] = 1.0
for nid, node in iteritems(model.nodes):
xyz = node.get_position()
node.xyz *= scale
node.cp = 0
del node.cp_ref
if fmt2 == 'stl':
nastran_to_stl(model, fname2, is_binary=data['--binary'])
elif fmt2 == 'cart3d':
cart3d = nastran_to_cart3d(model)
cart3d.write_cart3d(fname2)
elif fmt2 == 'tecplot':
tecplot = nastran_to_tecplot(model)
tecplot_filename = fname2
tecplot.write_tecplot(tecplot_filename, adjust_nids=False)
elif fmt2 == 'ugrid':
nastran_to_ugrid(model, fname2)
elif fmt2 == 'nastran':
model.write_bdf(fname2, size=16)
else:
raise NotImplementedError(fmt2)
def test_ugrid_gui_02(self):
"""tests solid_bending.bdf"""
nastran_filename1 = os.path.join(nastran_path, 'solid_bending', 'solid_bending.bdf')
from pyNastran.bdf.mesh_utils.extract_free_faces import write_skin_solid_faces
skin_filename = os.path.join(nastran_path, 'solid_bending', 'solid_bending_skin.bdf')
write_skin_solid_faces(nastran_filename1, skin_filename,
write_solids=True, write_shells=True,
size=8, is_double=False, encoding=None,
punch=False)
ugrid_filename = os.path.join(nastran_path, 'solid_bending', 'solid_bending.b8.ugrid')
nastran_to_ugrid(skin_filename, ugrid_filename_out=ugrid_filename,
properties=None, check_shells=True, check_solids=True)
assert os.path.exists(ugrid_filename), ugrid_filename
test = UGRID_GUI()
dirname = None
test.load_ugrid_geometry(ugrid_filename, dirname, name='main',
plot=True)
def process_nastran(bdf_filename, fmt2, fname2, data=None, debug=True):
"""
Converts Nastran to STL/Cart3d/Tecplot
"""
assert fmt2 in ['stl', 'cart3d', 'tecplot', 'ugrid'], 'format2=%s' % fmt2
xref = True
if fmt2 == 'ugrid':
xref = False
model = BDF(debug=debug)
model.read_bdf(bdf_filename, xref=xref)
if fmt2 == 'stl':
nastran_to_stl(model, fname2, is_binary=data['--binary'])
elif fmt2 == 'cart3d':
cart3d = nastran_to_cart3d(model)
cart3d.write_cart3d(fname2)
elif fmt2 == 'tecplot':
tecplot = nastran_to_tecplot(model)
tecplot_filename = fname2
tecplot.write_tecplot(tecplot_filename, adjust_nids=False)
elif fmt2 == 'ugrid':
ugrid = nastran_to_ugrid(model, fname2)
else:
raise NotImplementedError(fmt2)
def test_nastran_to_ugrid_01(self):
bdf_filename = os.path.join(MODEL_PATH, 'solid_bending',
'solid_bending.bdf')
size = 8
debug = False
log = SimpleLogger(level='warning', encoding='utf-8')
model = read_bdf(bdf_filename, log=log, debug=debug)
#log = model.log
#model.get_element_faces()
skin_bdf_filename = os.path.join(MODEL_PATH, 'solid_bending',
'solid_skin.bdf')
write_skin_solid_faces(model,
skin_bdf_filename,
write_solids=True,
write_shells=True,
size=size,
is_double=False,
encoding=None)
bdf_model = read_bdf(skin_bdf_filename, log=log, debug=debug)
ugrid_filename_out = os.path.join(MODEL_PATH, 'solid_bending',
'solid_skin.b8.ugrid')
ugrid_filename_out2 = os.path.join(MODEL_PATH, 'solid_bending',
'solid_skin2.b8.ugrid')
nastran_to_ugrid(bdf_model,
ugrid_filename_out,
properties=None,
check_shells=True,
check_solids=True)
ugrid = read_ugrid(ugrid_filename_out,
encoding=None,
log=log,
debug=debug)
skin_bdf_filename2 = os.path.join(MODEL_PATH, 'solid_bending',
'solid_skin2.bdf')
skin_cart3d_filename = os.path.join(MODEL_PATH, 'solid_bending',
'solid_skin2.tri')
skin_cart3d_filename3 = os.path.join(MODEL_PATH, 'solid_bending',
'solid_skin3.tri')
skin_stl_filename3 = os.path.join(MODEL_PATH, 'solid_bending',
'solid_skin3.stl')
#msg += " format_converter nastran <INPUT> <format2> <OUTPUT> [-o <OP2>] --no_xref\n"
#msg += " format_converter <format1> <INPUT> tecplot <OUTPUT> [-r RESTYPE...] [-b] [--block] [-x <X>] [-y <Y>] [-z <Z>] [--scale SCALE]\n"
#msg += " format_converter <format1> <INPUT> stl <OUTPUT> [-b] [--scale SCALE]\n"
#msg += " format_converter cart3d <INPUT> <format2> <OUTPUT> [-b] [--scale SCALE]\n"
#msg += " format_converter <format1> <INPUT> <format2> <OUTPUT> [--scale SCALE]\n"
argv = [
'format_converter', 'nastran', bdf_filename, 'ugrid',
ugrid_filename_out2
]
with self.assertRaises(RuntimeError):
cmd_line_format_converter(argv=argv, quiet=True)
#argv = ['format_converter', 'nastran', bdf_filename, 'cart3d', skin_cart3d_filename3]
#cmd_line_format_converter(argv=argv)
#argv = ['format_converter', 'nastran', bdf_filename, 'stl', skin_stl_filename3]
#cmd_line_format_converter(argv=argv)
ugrid.write_bdf(skin_bdf_filename2,
include_shells=True,
include_solids=True,
convert_pyram_to_penta=True,
encoding=None,
size=size,
is_double=False)
read_bdf(skin_bdf_filename2, log=log, debug=debug)
with self.assertRaises(AssertionError):
nastran_to_cart3d_filename(skin_bdf_filename2,
skin_cart3d_filename)
ugrid.write_bdf(skin_bdf_filename2,
include_shells=True,
include_solids=False,
convert_pyram_to_penta=True,
encoding=None,
size=size,
is_double=False)
nastran_to_cart3d_filename(skin_bdf_filename2, skin_cart3d_filename)
read_cart3d(skin_cart3d_filename, log=log)
os.remove(ugrid_filename_out)
os.remove(skin_bdf_filename)
os.remove(skin_bdf_filename2)
os.remove(skin_cart3d_filename)
def test_ugrid_01(self):
"""tests solid_bending.bdf"""
nastran_filename1 = os.path.join(NASTRAN_PATH, 'solid_bending',
'solid_bending.bdf')
ugrid_filename = os.path.join(NASTRAN_PATH, 'solid_bending',
'solid_bending.b8.ugrid')
log = get_logger(level='warning')
unused_ugrid_model = nastran_to_ugrid(
nastran_filename1,
ugrid_filename_out=ugrid_filename,
properties=None,
check_shells=False,
check_solids=True,
log=log)
assert os.path.exists(ugrid_filename), ugrid_filename
nastran_filename2 = os.path.join(NASTRAN_PATH, 'solid_bending',
'solid_bending2.bdf')
ugrid_model = ugrid3d_to_nastran(ugrid_filename,
nastran_filename2,
include_shells=True,
include_solids=True,
convert_pyram_to_penta=False,
encoding=None,
size=16,
is_double=False,
log=log)
nastran_filename3 = os.path.join(NASTRAN_PATH, 'solid_bending',
'solid_bending3.bdf')
tris, quads = ugrid_model.skin_solids()
ugrid_model.tris = tris
ugrid_model.quads = quads
ugrid_model.pids = np.ones(len(tris) + len(quads))
ugrid_model.write_bdf(nastran_filename3)
bdf_model = read_bdf(nastran_filename3)
#print(bdf_model.get_bdf_stats())
assert os.path.exists(nastran_filename3), nastran_filename3
#tecplot_filename1 = os.path.join(NASTRAN_PATH, 'solid_bending', 'solid_bending.plt')
#ugrid3d_to_tecplot_filename(model, tecplot_filename1)
#assert os.path.exists(tecplot_filename1), tecplot_filename1
tecplot_filename2 = os.path.join(NASTRAN_PATH, 'solid_bending',
'solid_bending2.plt')
tecplot = ugrid_to_tecplot(ugrid_model)
tecplot.write_tecplot(tecplot_filename2,
res_types=None,
adjust_nids=True)
assert os.path.exists(tecplot_filename2), tecplot_filename2
ugrid_filename_out = os.path.join(NASTRAN_PATH, 'solid_bending',
'solid_bending.b8.ugrid_out')
pshell_pids_to_remove = []
merge_ugrid3d_and_bdf_to_ugrid3d_filename(ugrid_filename,
nastran_filename3,
ugrid_filename_out,
pshell_pids_to_remove,
update_equivalence=True,
tol=0.01)
assert os.path.exists(ugrid_filename_out), ugrid_filename_out
