def ugrid3d_to_nastran(ugrid_filename,
bdf_filename,
include_shells=True,
include_solids=True,
convert_pyram_to_penta=False,
encoding=None,
size=16,
is_double=False,
log=None):
"""
Converts a UGRID to a BDF.
Parameters
----------
ugrid_filename : str
the input UGRID filename
bdf_filename : str
the output BDF filename
include_shells : bool; default=True
should the shells be written
include_solids : bool; default=True
should the solids be written
convert_pyram_to_penta : bool; default=False
False : NX Nastran
True : MSC Nastran
size : int; {8, 16}; default=16
the bdf write precision
is_double : bool; default=False
the field precision to write
log : logger; default=None
a logger object
Returns
-------
ugrid_model : UGRID()
the ugrid model
"""
model = UGRID(log=log, debug=False)
check_path(ugrid_filename, 'ugrid_filename')
model.read_ugrid(ugrid_filename)
model.write_bdf(bdf_filename,
include_shells=include_shells,
include_solids=include_solids,
convert_pyram_to_penta=convert_pyram_to_penta,
encoding=encoding,
size=size,
is_double=is_double)
return model
def process_ugrid(ugrid_filename, fmt2, fname2, log, data=None, quiet=False):
"""
Converts UGRID to Nastran/Cart3d/STL/Tecplot
"""
assert fmt2 in ['stl', 'nastran', 'cart3d', 'tecplot'], 'format2=%s' % fmt2
read_shells = True
read_solids = True
if fmt2 in ['stl', 'cart3d']:
read_shells = True
read_solids = False
from pyNastran.converters.aflr.ugrid.ugrid_reader import UGRID
model = UGRID(read_shells=read_shells, read_solids=read_solids, log=log)
model.read_ugrid(ugrid_filename)
if fmt2 == 'nastran':
# ugrid_to_nastran(model, fname2
include_shells = True
include_solids = True
bdf_filename = fname2
model.write_bdf(bdf_filename,
include_shells=include_shells,
include_solids=include_solids)
elif fmt2 == 'cart3d':
include_shells = True
include_solids = False
bdf_filename = fname2 + '.bdf'
model.write_bdf(bdf_filename,
include_shells=include_shells,
include_solids=include_solids)
# ugrid_to_cart3d(model, fname2)
process_nastran(bdf_filename, 'cart3d', fname2, data=None)
elif fmt2 == 'stl':
include_shells = True
include_solids = False
bdf_filename = fname2 + '.bdf'
model.write_bdf(bdf_filename,
include_shells=include_shells,
include_solids=include_solids)
process_nastran(bdf_filename, 'cart3d', fname2, data=None)
# ugrid_to_stl(model, fname2)
elif fmt2 == 'tecplot':
from pyNastran.converters.aflr.ugrid.ugrid3d_to_tecplot import ugrid_to_tecplot
# ugrid_to_tecplot(model, fname2)
tecplot, unused_zone = ugrid_to_tecplot(model)
element_slice(tecplot, data)
tecplot_filename = fname2
tecplot.write_tecplot(tecplot_filename)
else:
raise NotImplementedError('fmt2=%s is not supported by process_ugrid' %
fmt2)