def stl_to_nastran_filename(stl_filename, bdf_filename,
nnodes_offset=0, nelements_offset=0,
pid=100, mid=200,
size=8, is_double=False,
log=None):
model = STL(log=log)
model.read_stl(stl_filename)
nid = nnodes_offset + 1
cid = None
load_id = 10
nodal_normals = model.get_normals_at_nodes(model.elements)
bdf = open(bdf_filename, 'wb')
bdf.write('CEND\n')
#bdf.write('LOAD = %s\n' % load_id)
bdf.write('BEGIN BULK\n')
nid2 = 1
magnitude = 100.
if size == 8:
print_card = print_card_8
elif size == 16:
if is_double:
print_card = print_card_16
else:
print_card = print_card_double
for x, y, z in model.nodes:
card = ['GRID', nid, cid, x, y, z]
bdf.write(print_card_16(card))
#nx, ny, nz = nodal_normals[nid2 - 1]
#card = ['FORCE', load_id, nid, cid, magnitude, nx, ny, nz]
#bdf.write(print_card_8(card))
nid += 1
nid2 += 1
eid = nelements_offset + 1
for (n1, n2, n3) in (model.elements + (nnodes_offset + 1)):
card = ['CTRIA3', eid, pid, n1, n2, n3]
bdf.write(print_card_8(card))
eid += 1
t = 0.1
card = ['PSHELL', pid, mid, t]
bdf.write(print_card_8(card))
E = 1e7
G = None
nu = 0.3
card = ['MAT1', mid, E, G, nu]
bdf.write(print_card_8(card))
bdf.write('ENDDATA\n')
bdf.close()
def stl_to_nastran(stl_filename,
bdf_filename,
nnodes_offset=0,
nelements_offset=0,
pid=100,
mid=200,
size=8,
is_double=False,
log=None):
if isinstance(stl_filename, string_types):
model = STL(log=log)
model.read_stl(stl_filename)
elif isinstance(stl_filename, STL):
model = stl_filename
else:
raise TypeError('stl_filename must be a string or STL; type=%s' %
type(stl_filename))
nid = nnodes_offset + 1
cid = None
load_id = 10
nodal_normals = model.get_normals_at_nodes(model.elements)
if size == 8:
print_card = print_card_8
elif size == 16:
if is_double:
print_card = print_card_16
else:
print_card = print_card_double
else:
raise RuntimeError('size=%r' % size)
with open(bdf_filename, 'w') as bdf:
bdf.write('CEND\n')
#bdf.write('LOAD = %s\n' % load_id)
bdf.write('BEGIN BULK\n')
nid2 = 1
magnitude = 100.
for x, y, z in model.nodes:
card = ['GRID', nid, cid, x, y, z]
bdf.write(print_card_16(card))
#nx, ny, nz = nodal_normals[nid2 - 1]
#card = ['FORCE', load_id, nid, cid, magnitude, nx, ny, nz]
#bdf.write(print_card_8(card))
nid += 1
nid2 += 1
eid = nelements_offset + 1
for (n1, n2, n3) in (model.elements + (nnodes_offset + 1)):
card = ['CTRIA3', eid, pid, n1, n2, n3]
bdf.write(print_card_8(card))
eid += 1
t = 0.1
card = ['PSHELL', pid, mid, t]
bdf.write(print_card_8(card))
E = 1e7
G = None
nu = 0.3
card = ['MAT1', mid, E, G, nu]
bdf.write(print_card_8(card))
bdf.write('ENDDATA\n')
return bdf
def stl_to_nastran(stl_filename, bdf_filename,
nnodes_offset=0, nelements_offset=0,
pid=100, mid=200,
size=8, is_double=False,
log=None):
if isinstance(stl_filename, string_types):
model = STL(log=log)
model.read_stl(stl_filename)
elif isinstance(stl_filename, STL):
model = stl_filename
else:
raise TypeError('stl_filename must be a string or STL; type=%s' % type(stl_filename))
nid = nnodes_offset + 1
cid = None
load_id = 10
nodal_normals = model.get_normals_at_nodes(model.elements)
if size == 8:
print_card = print_card_8
elif size == 16:
if is_double:
print_card = print_card_16
else:
print_card = print_card_double
else:
raise RuntimeError('size=%r' % size)
with open(bdf_filename, 'w') as bdf:
bdf.write('CEND\n')
#bdf.write('LOAD = %s\n' % load_id)
bdf.write('BEGIN BULK\n')
nid2 = 1
magnitude = 100.
for x, y, z in model.nodes:
card = ['GRID', nid, cid, x, y, z]
bdf.write(print_card_16(card))
#nx, ny, nz = nodal_normals[nid2 - 1]
#card = ['FORCE', load_id, nid, cid, magnitude, nx, ny, nz]
#bdf.write(print_card_8(card))
nid += 1
nid2 += 1
eid = nelements_offset + 1
for (n1, n2, n3) in (model.elements + (nnodes_offset + 1)):
card = ['CTRIA3', eid, pid, n1, n2, n3]
bdf.write(print_card_8(card))
eid += 1
t = 0.1
card = ['PSHELL', pid, mid, t]
bdf.write(print_card_8(card))
E = 1e7
G = None
nu = 0.3
card = ['MAT1', mid, E, G, nu]
bdf.write(print_card_8(card))
bdf.write('ENDDATA\n')
return bdf
