def DisplayCellQual(meshtype='tet'):
"""
Displays minimum scaled jacobian of a sample mesh
For an ANSYS analysis to run properly, the minimum scaled jacobian of each
cell must be greater than 0.
Parameters
----------
meshtype string, optional
Set to 'hex' to display cell quality of a hexahedral meshed beam.
"""
# load archive file and parse for subsequent FEM queries
if meshtype == 'hex':
archive = pyansys.ReadArchive(hexarchivefile)
else:
archive = pyansys.ReadArchive(tetarchivefile)
# create vtk object
grid = archive.ParseVTK()
# get cell quality
qual = pyansys.CellQuality(grid)
# plot cell quality
grid.Plot(scalars=qual, stitle='Cell Minimum Scaled\nJacobian', rng=[0, 1])
def show_cell_qual(meshtype='tet', off_screen=None):
"""Displays minimum scaled jacobian of a sample mesh
For an ANSYS analysis to run properly, the minimum scaled Jacobian
of each cell must be greater than 0.
Parameters
----------
meshtype string, optional
Set to 'hex' to display cell quality of a hexahedral meshed beam.
"""
# load archive file and parse for subsequent FEM queries
if meshtype == 'hex':
archive = pyansys.Archive(hexarchivefile)
else:
archive = pyansys.Archive(tetarchivefile)
# create vtk object
grid = archive.parse_vtk()
# get cell quality
qual = pyansys.CellQuality(grid)
assert np.all(qual > 0)
# plot cell quality
grid.plot(scalars=qual, stitle='Cell Minimum Scaled\nJacobian', cmap='bwr',
show_edges=True,
rng=[0, 1], flip_scalars=True, off_screen=off_screen)
def quality(self):
"""
Returns cell quality using PyANSYS. Computes the minimum scaled
jacobian of each cell. Cells that have values below 0 are invalid for
a finite element analysis.
Note
----
This casts the input to an unstructured grid
Returns
-------
cellquality : np.ndarray
Minimum scaled jacobian of each cell. Ranges from -1 to 1.
Notes
-----
Requires pyansys to be installed.
"""
try:
import pyansys
except:
raise Exception('Install pyansys for this function')
if not isinstance(self, pyvista.UnstructuredGrid):
dataset = self.cast_to_unstructured_grid()
else:
dataset = self
return pyansys.CellQuality(dataset)
def CellQuality(self):
"""
Computes the minimum scaled jacobian of each cell. Cells that have
values below 0 are invalid for a finite element analysis.
Returns
-------
cellquality : np.ndarray
Minimum scaled jacobian of each cell. Ranges from -1 to 1.
Notes
-----
Requires pyansys to be installed.
"""
try:
import pyansys
except:
raise Exception('Install pyansys for this function')
return pyansys.CellQuality(self)
