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):
"""
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
Returns
-------
ugrid_model : UGRID()
the ugrid model
"""
model = UGRID(log=None, debug=False)
assert os.path.exists(ugrid_filename), '%r doesnt exist' % 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, data=None):
"""
Converts UGRID to Nastran/Cart3d/STL/Tecplot
"""
assert fmt2 in ['stl', 'nastran', 'cart3d', 'tecplot'], 'format2=%s' % fmt2
model = UGRID()
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 = False
include_solids = True
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 = False
include_solids = True
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':
# ugrid_to_tecplot(model, fname2)
tecplot = ugrid_to_tecplot(model)
element_slice(tecplot, data)
tecplot_filename = fname2
tecplot.write_tecplot(tecplot_filename)
else:
raise NotImplementedError(fmt2)
def ugrid3d_to_tecplot_filename(ugrid_filename, tecplot_filename, log=None):
"""
Converts a UGRID to a Tecplot ASCII file.
Parameters
----------
ugrid_filename : str
the input UGRID filename
bdf_filename : str
the output Tecplot filename
"""
model = UGRID(log=log)
assert os.path.exists(ugrid_filename), '%r doesnt exist' % ugrid_filename
model.read_ugrid(ugrid_filename)
model.write_tecplot(tecplot_filename)
def process_ugrid(ugrid_filename, fmt2, fname2, data=None):
"""
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
model = UGRID(read_shells=read_shells, read_solids=read_solids)
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':
# ugrid_to_tecplot(model, fname2)
tecplot = ugrid_to_tecplot(model)
element_slice(tecplot, data)
tecplot_filename = fname2
tecplot.write_tecplot(tecplot_filename)
else:
raise NotImplementedError(fmt2)
def ugrid3d_to_tecplot_filename(ugrid_filename, tecplot_filename, log=None):
"""
Converts a UGRID to a Tecplot ASCII file.
Parameters
----------
ugrid_filename : varies
str : the input UGRID filename
UGRID : the UGRID object
bdf_filename : str
the output Tecplot filename
log : logger; default=None
a logger object
"""
if isinstance(ugrid_filename, str):
#assert os.path.exists(ugrid_filename), '%r doesnt exist' % ugrid_filename
model = UGRID(log=log)
model.read_ugrid(ugrid_filename)
else:
model = ugrid_filename
model.write_tecplot(tecplot_filename)
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):
"""
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
Returns
-------
ugrid_model : UGRID()
the ugrid model
"""
model = UGRID(log=None, debug=False)
assert os.path.exists(ugrid_filename), '%r doesnt exist' % 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 ugrid3d_to_tecplot_filename(ugrid_filename, tecplot_filename,
log=None, debug=False):
"""
Converts a UGRID to a Tecplot ASCII file.
Parameters
----------
ugrid_filename : varies
str : the input UGRID filename
UGRID : the UGRID object
tecplot_filename : str
the output Tecplot filename
log : logger; default=None
a logger object
debug : bool; default=False
developer debug
"""
if isinstance(ugrid_filename, str):
#assert os.path.exists(ugrid_filename), '%r doesnt exist' % ugrid_filename
model = UGRID(log=log, debug=debug)
model.read_ugrid(ugrid_filename)
else:
model = ugrid_filename
model.write_tecplot(tecplot_filename)
def nastran_to_ugrid(bdf_model, ugrid_filename_out=None, properties=None,
check_shells=True, check_solids=True):
"""
set xref=False
"""
# pids_to_inlcude = []
# for pid, prop in iteritems(model.properties):
# if prop.type == 'PSHELL':
# pids_to_include.append(pid)
if properties is not None:
for pid, pid_new in iteritems(properties):
bdf_model.properties[pid].pid = pid_new
card_types = ['CQUAD4', 'CTRIA3', 'CTETRA', 'CHEXA', 'GRID', 'CPENTA', 'CPYRAM']
out = bdf_model.get_card_ids_by_card_types(card_types)
node_ids = out['GRID']
ctria3 = out['CTRIA3']
cquad4 = out['CQUAD4']
ctetra = out['CTETRA']
cpyram = out['CPYRAM']
cpenta = out['CPENTA']
chexa = out['CHEXA']
nnodes = len(node_ids)
ntris = len(ctria3)
nquads = len(cquad4)
nshells = ntris + nquads
ntetra = len(ctetra)
npyram = len(cpyram)
npenta = len(cpenta)
nhexa = len(chexa)
nsolids = ntetra + npyram + npenta + nhexa
if nnodes == 0:
raise RuntimeError('nnodes=%i nshells=%i nsolids=%i' % (nnodes, nshells, nsolids))
if nshells == 0 and check_shells:
raise RuntimeError('nnodes=%i nshells=%i nsolids=%i' % (nnodes, nshells, nsolids))
if nsolids == 0 and check_solids:
raise RuntimeError('nnodes=%i nshells=%i nsolids=%i' % (nnodes, nshells, nsolids))
nodes = bdf_model.nodes
elements = bdf_model.elements
xyz_cid0 = array([nodes[nid].xyz for nid in node_ids], dtype='float64')
pids = []
model = UGRID()
model.nodes = xyz_cid0
if ntris:
model.tris = array([elements[eid].node_ids for eid in ctria3], dtype='int32')
ptris = array([elements[eid].Pid() for eid in ctria3], dtype='int32')
pids.append(ptris)
if nquads:
model.quads = array([elements[eid].node_ids for eid in cquad4], dtype='int32')
pquads = array([elements[eid].Pid() for eid in cquad4], dtype='int32')
pids.append(pquads)
if len(pids) == 1:
model.pids = pids[0]
elif len(pids) == 2:
model.pids = hstack(pids)
else:
raise RuntimeError(pids)
if ntetra:
model.tets = array([elements[eid].node_ids for eid in ctetra], dtype='int32')
if npyram:
model.penta5s = array([elements[eid].node_ids for eid in cpyram], dtype='int32')
if nhexa:
model.penta6s = array([elements[eid].node_ids for eid in cpenta], dtype='int32')
if nhexa:
model.hexas = array([elements[eid].node_ids for eid in chexa], dtype='int32')
if ugrid_filename_out is not None:
model.write_ugrid(ugrid_filename_out)
return model
def load_ugrid_geometry(self, ugrid_filename, dirname, name='main', plot=True):
#skip_reading = self.remove_old_openfoam_geometry(openfoam_filename)
#if skip_reading:
# return
if is_binary_file(ugrid_filename):
model = UGRID(log=self.log, debug=True)
base, fmt, ext = os.path.basename(ugrid_filename).split('.')
is_2d = False
else:
base, ext = os.path.basename(ugrid_filename).split('.')
model = UGRID2D_Reader(log=self.log, debug=True)
is_2d = True
self.model_type = 'ugrid'
print('ugrid_filename = %s' % ugrid_filename)
assert ext == 'ugrid', ugrid_filename
model.read_ugrid(ugrid_filename)
if is_2d:
tris = model.tris
quads = model.quads
else:
tris = model.tris - 1
quads = model.quads - 1
#self.nodes = nodes
#self.tris = tris
#self.quads = quads
#self.pids = pids
#self.tets = tets
#self.penta5s = penta5s
#self.penta6s = penta6s
#self.hexas = hexas
nnodes = model.nodes.shape[0]
ntris = model.tris.shape[0]
nquads = model.quads.shape[0]
nelements = ntris + nquads
nodes = model.nodes
self.nElements = nelements
self.nNodes = nnodes
print("nNodes = %s" % self.nNodes)
print("nElements = %s" % self.nElements)
assert nelements > 0, nelements
self.grid.Allocate(self.nElements, 1000)
points = vtk.vtkPoints()
points.SetNumberOfPoints(self.nNodes)
mmax = amax(nodes, axis=0)
mmin = amin(nodes, axis=0)
dim_max = (mmax - mmin).max()
self.create_global_axes(dim_max)
self.log.info('max = %s' % mmax)
self.log.info('min = %s' % mmin)
diff_node_ids = model.check_hanging_nodes(stop_on_diff=False)
if len(diff_node_ids):
red = (1., 0., 0.)
self.create_alternate_vtk_grid('hanging_nodes', color=red, line_width=5, opacity=1., point_size=10, representation='point')
self._add_ugrid_nodes_to_grid('hanging_nodes', diff_node_ids, nodes)
self._add_alt_actors(self.alt_grids)
for inode, node in enumerate(nodes):
points.InsertPoint(inode, node)
if ntris:
for eid, element in enumerate(tris):
elem = vtkTriangle()
elem.GetPointIds().SetId(0, element[0])
elem.GetPointIds().SetId(1, element[1])
elem.GetPointIds().SetId(2, element[2])
self.grid.InsertNextCell(elem.GetCellType(),
elem.GetPointIds())
if nquads:
for eid, element in enumerate(quads):
elem = vtkQuad()
elem.GetPointIds().SetId(0, element[0])
elem.GetPointIds().SetId(1, element[1])
elem.GetPointIds().SetId(2, element[2])
elem.GetPointIds().SetId(3, element[3])
self.grid.InsertNextCell(elem.GetCellType(),
elem.GetPointIds())
self.nElements = nelements
self.grid.SetPoints(points)
self.grid.Modified()
print('update...')
if hasattr(self.grid, 'Update'):
self.grid.Update()
#print("updated grid")
# loadCart3dResults - regions/loads
self. turn_text_on()
self.scalarBar.VisibilityOn()
self.scalarBar.Modified()
self.iSubcaseNameMap = {1: ['AFLR UGRID Surface', '']}
cases = {}
ID = 1
if hasattr(model, 'pids'):
form, cases = self._fill_ugrid3d_case(ugrid_filename, cases, ID, nnodes, nelements, model)
else:
form, cases = self._fill_ugrid2d_case(ugrid_filename, cases, ID, nnodes, nelements, model)
if plot:
self._finish_results_io2(form, cases)
def load_ugrid_geometry(self, ugrid_filename, dirname, name='main', plot=True):
#skip_reading = self.remove_old_openfoam_geometry(openfoam_filename)
#if skip_reading:
# return
if is_binary_file(ugrid_filename):
model = UGRID(log=self.log, debug=True)
base, fmt, ext = os.path.basename(ugrid_filename).split('.')
is_2d = False
else:
base, ext = os.path.basename(ugrid_filename).split('.')
model = UGRID2D_Reader(log=self.log, debug=True)
is_2d = True
self.model_type = 'ugrid'
self.log.debug('ugrid_filename = %s' % ugrid_filename)
assert ext == 'ugrid', ugrid_filename
model.read_ugrid(ugrid_filename)
if is_2d:
tris = model.tris
quads = model.quads
else:
tris = model.tris - 1
quads = model.quads - 1
#self.nodes = nodes
#self.tris = tris
#self.quads = quads
#self.pids = pids
#self.tets = tets
#self.penta5s = penta5s
#self.penta6s = penta6s
#self.hexas = hexas
nnodes = model.nodes.shape[0]
ntris = model.tris.shape[0]
nquads = model.quads.shape[0]
nelements = ntris + nquads
nodes = model.nodes
self.nElements = nelements
self.nNodes = nnodes
self.log.info("nnodes=%s nelements=%s" % (self.nNodes, self.nElements))
assert nelements > 0, nelements
self.grid.Allocate(self.nElements, 1000)
points = vtk.vtkPoints()
points.SetNumberOfPoints(self.nNodes)
mmax = amax(nodes, axis=0)
mmin = amin(nodes, axis=0)
dim_max = (mmax - mmin).max()
self.create_global_axes(dim_max)
self.log.info('max = %s' % mmax)
self.log.info('min = %s' % mmin)
diff_node_ids = model.check_hanging_nodes(stop_on_diff=False)
if len(diff_node_ids):
red = (1., 0., 0.)
self.create_alternate_vtk_grid('hanging_nodes', color=red, line_width=5, opacity=1.,
point_size=10, representation='point')
self._add_ugrid_nodes_to_grid('hanging_nodes', diff_node_ids, nodes)
self._add_alt_actors(self.alt_grids)
data_type = vtk.VTK_FLOAT
points_array = numpy_to_vtk(
num_array=nodes,
deep=True,
array_type=data_type
)
points.SetData(points_array)
if ntris:
for eid, element in enumerate(tris):
elem = vtkTriangle()
elem.GetPointIds().SetId(0, element[0])
elem.GetPointIds().SetId(1, element[1])
elem.GetPointIds().SetId(2, element[2])
self.grid.InsertNextCell(elem.GetCellType(),
elem.GetPointIds())
if nquads:
for eid, element in enumerate(quads):
elem = vtkQuad()
elem.GetPointIds().SetId(0, element[0])
elem.GetPointIds().SetId(1, element[1])
elem.GetPointIds().SetId(2, element[2])
elem.GetPointIds().SetId(3, element[3])
self.grid.InsertNextCell(elem.GetCellType(),
elem.GetPointIds())
self.nElements = nelements
self.grid.SetPoints(points)
self.grid.Modified()
self.log.info('update...')
if hasattr(self.grid, 'Update'):
self.grid.Update()
#self.log.info("updated grid")
# loadCart3dResults - regions/loads
self. turn_text_on()
self.scalarBar.VisibilityOn()
self.scalarBar.Modified()
self.iSubcaseNameMap = {1: ['AFLR UGRID Surface', '']}
cases = {}
ID = 1
if hasattr(model, 'pids'):
form, cases = self._fill_ugrid3d_case(
ugrid_filename, cases, ID, nnodes, nelements, model)
else:
form, cases = self._fill_ugrid2d_case(
ugrid_filename, cases, ID, nnodes, nelements, model)
if plot:
self._finish_results_io2(form, cases)
def nastran_to_ugrid(bdf_filename, ugrid_filename_out=None, properties=None,
check_shells=True, check_solids=True):
"""
set xref=False
Parameters
----------
bdf_filename : varies
str : a bdf filename
BDF() : a BDF object
ugrid_filename_out : str (default=None -> ???)
the path to the ugrid_filename
properties : dict???
???
check_shells : bool (default=True)
verify that there is at least one shell element
check_solids : bool (default=True)
verify that there is at least one solid element
"""
if isinstance(bdf_filename, str):
bdf_model = read_bdf(bdf_filename)
else:
bdf_model = bdf_filename
# pids_to_inlcude = []
# for pid, prop in iteritems(model.properties):
# if prop.type == 'PSHELL':
# pids_to_include.append(pid)
if properties is not None:
for pid, pid_new in iteritems(properties):
bdf_model.properties[pid].pid = pid_new
card_types = ['CQUAD4', 'CTRIA3', 'CTETRA', 'CHEXA', 'GRID', 'CPENTA', 'CPYRAM']
out = bdf_model.get_card_ids_by_card_types(card_types)
node_ids = out['GRID']
ctria3 = out['CTRIA3']
cquad4 = out['CQUAD4']
ctetra = out['CTETRA']
cpyram = out['CPYRAM']
cpenta = out['CPENTA']
chexa = out['CHEXA']
nnodes = len(node_ids)
ntris = len(ctria3)
nquads = len(cquad4)
nshells = ntris + nquads
ntetra = len(ctetra)
npyram = len(cpyram)
npenta = len(cpenta)
nhexa = len(chexa)
nsolids = ntetra + npyram + npenta + nhexa
if nnodes == 0:
raise RuntimeError('nnodes=%i nshells=%i nsolids=%i' % (nnodes, nshells, nsolids))
if nshells == 0 and check_shells:
raise RuntimeError('nnodes=%i nshells=%i nsolids=%i' % (nnodes, nshells, nsolids))
if nsolids == 0 and check_solids:
raise RuntimeError('nnodes=%i nshells=%i nsolids=%i' % (nnodes, nshells, nsolids))
nodes = bdf_model.nodes
elements = bdf_model.elements
xyz_cid0 = array([nodes[nid].xyz for nid in node_ids], dtype='float64')
pids = []
model = UGRID()
model.nodes = xyz_cid0
if ntris:
model.tris = array([elements[eid].node_ids for eid in ctria3], dtype='int32')
ptris = array([elements[eid].Pid() for eid in ctria3], dtype='int32')
pids.append(ptris)
if nquads:
model.quads = array([elements[eid].node_ids for eid in cquad4], dtype='int32')
pquads = array([elements[eid].Pid() for eid in cquad4], dtype='int32')
pids.append(pquads)
if check_shells:
if len(pids) == 1:
model.pids = pids[0]
elif len(pids) == 2:
model.pids = hstack(pids)
else:
raise RuntimeError(pids)
if ntetra:
model.tets = array([elements[eid].node_ids for eid in ctetra], dtype='int32')
if npyram:
model.penta5s = array([elements[eid].node_ids for eid in cpyram], dtype='int32')
if nhexa:
model.penta6s = array([elements[eid].node_ids for eid in cpenta], dtype='int32')
if nhexa:
model.hexas = array([elements[eid].node_ids for eid in chexa], dtype='int32')
model.log.debug('ugrid_filename_out = %r' % ugrid_filename_out)
if ugrid_filename_out is not None:
model.write_ugrid(ugrid_filename_out, check_shells=check_shells)
return model
def nastran_to_ugrid(bdf_filename,
ugrid_filename_out=None,
properties=None,
check_shells=True,
check_solids=True):
"""
set xref=False
Parameters
----------
bdf_filename : varies
str : a bdf filename
BDF() : a BDF object
ugrid_filename_out : str (default=None -> ???)
the path to the ugrid_filename
properties : dict???
???
check_shells : bool (default=True)
verify that there is at least one shell element
check_solids : bool (default=True)
verify that there is at least one solid element
"""
if isinstance(bdf_filename, str):
bdf_model = read_bdf(bdf_filename)
else:
bdf_model = bdf_filename
# pids_to_inlcude = []
# for pid, prop in iteritems(model.properties):
# if prop.type == 'PSHELL':
# pids_to_include.append(pid)
if properties is not None:
for pid, pid_new in iteritems(properties):
bdf_model.properties[pid].pid = pid_new
card_types = [
'CQUAD4', 'CTRIA3', 'CTETRA', 'CHEXA', 'GRID', 'CPENTA', 'CPYRAM'
]
out = bdf_model.get_card_ids_by_card_types(card_types)
node_ids = out['GRID']
ctria3 = out['CTRIA3']
cquad4 = out['CQUAD4']
ctetra = out['CTETRA']
cpyram = out['CPYRAM']
cpenta = out['CPENTA']
chexa = out['CHEXA']
nnodes = len(node_ids)
ntris = len(ctria3)
nquads = len(cquad4)
nshells = ntris + nquads
ntetra = len(ctetra)
npyram = len(cpyram)
npenta = len(cpenta)
nhexa = len(chexa)
nsolids = ntetra + npyram + npenta + nhexa
if nnodes == 0:
raise RuntimeError('nnodes=%i nshells=%i nsolids=%i' %
(nnodes, nshells, nsolids))
if nshells == 0 and check_shells:
raise RuntimeError('nnodes=%i nshells=%i nsolids=%i' %
(nnodes, nshells, nsolids))
if nsolids == 0 and check_solids:
raise RuntimeError('nnodes=%i nshells=%i nsolids=%i' %
(nnodes, nshells, nsolids))
nodes = bdf_model.nodes
elements = bdf_model.elements
xyz_cid0 = array([nodes[nid].xyz for nid in node_ids], dtype='float64')
pids = []
model = UGRID()
model.nodes = xyz_cid0
if ntris:
model.tris = array([elements[eid].node_ids for eid in ctria3],
dtype='int32')
ptris = array([elements[eid].Pid() for eid in ctria3], dtype='int32')
pids.append(ptris)
if nquads:
model.quads = array([elements[eid].node_ids for eid in cquad4],
dtype='int32')
pquads = array([elements[eid].Pid() for eid in cquad4], dtype='int32')
pids.append(pquads)
if check_shells:
if len(pids) == 1:
model.pids = pids[0]
elif len(pids) == 2:
model.pids = hstack(pids)
else:
raise RuntimeError(pids)
if ntetra:
model.tets = array([elements[eid].node_ids for eid in ctetra],
dtype='int32')
if npyram:
model.penta5s = array([elements[eid].node_ids for eid in cpyram],
dtype='int32')
if nhexa:
model.penta6s = array([elements[eid].node_ids for eid in cpenta],
dtype='int32')
if nhexa:
model.hexas = array([elements[eid].node_ids for eid in chexa],
dtype='int32')
model.log.debug('ugrid_filename_out = %r' % ugrid_filename_out)
if ugrid_filename_out is not None:
model.write_ugrid(ugrid_filename_out, check_shells=check_shells)
return model
