def __init__(self, fn_input, fn_condition, fn_print=None, *args, **kwargs):
_fn_input = _Function.convert(fn_input)
if _fn_input == None:
raise ValueError( "provided 'fn_input' must a 'Function' or convertible.")
self._fn_input = _fn_input
_fn_condition = _Function.convert(fn_condition)
if _fn_condition == None:
raise ValueError( "provided 'fn_condition' must a 'Function' or convertible.")
self._fn_condition = _fn_condition
if fn_print != None:
_fn_print = _Function.convert(fn_print)
if _fn_print == None:
raise ValueError( "provided 'fn_print' must a 'Function' or convertible.")
self._fn_print = _fn_print
# create instance
if not fn_print:
self._fncself = _cfn.CustomException( self._fn_input._fncself, self._fn_condition._fncself )
else:
self._fncself = _cfn.CustomException( self._fn_input._fncself, self._fn_condition._fncself, self._fn_print._fncself )
# build parent
# note that we only pass in _fn_input as the argument_fns, as _fn_condition & _fn_print are
# not dynamically relevant... it is only used for performing the exception check.
super(CustomException,self).__init__(argument_fns=[_fn_input,],**kwargs)
def __init__(self, fn_stress, fn_stresslimit, fn_inputviscosity, *args, **kwargs):
_fn_stress = _Function.convert(fn_stress)
if _fn_stress == None:
raise ValueError( "Provided 'fn_stress' must a 'Function' or convertible type.")
self._fn_stress = _fn_stress
_fn_stresslimit = _Function.convert(fn_stresslimit)
if _fn_stresslimit == None:
raise ValueError( "Provided 'fn_stresslimit' must a 'Function' or convertible type.")
self._fn_stresslimit = _fn_stresslimit
_fn_inputviscosity = _Function.convert(fn_inputviscosity)
if _fn_inputviscosity == None:
raise ValueError( "Provided 'fn_inputviscosity' must a 'Function' or convertible type.")
self._fn_inputviscosity = _fn_inputviscosity
# grab second inv of stress
secondInvFn = _tensor.second_invariant(self._fn_stress)
# create conditional
self._conditional = _branching.conditional( [ ( secondInvFn > _fn_stresslimit , fn_inputviscosity*_fn_stresslimit/secondInvFn ), # if over limit, reduce viscosity
( True , fn_inputviscosity ) ] ) # else return viscosity
# this function is not based on a c function itself, so instead point the c pointer to the conditionals.
self._fncself = self._conditional._fncself
# build parent
super(stress_limiting_viscosity,self).__init__(argument_fns=[_fn_stress,_fn_stresslimit,_fn_inputviscosity],**kwargs)
def __init__(self, clauses, *args, **kwargs):
# error check mapping
if not isinstance(clauses, (list, tuple)):
raise TypeError(
"'clauses' object passed in must be of python type 'list' or 'tuple'"
)
self._clauses = []
funcSet = set()
for clause in clauses:
if not isinstance(clause, (list, tuple)):
raise TypeError(
"Clauses within the clause list must be of python type 'list' or 'tuple'"
)
if len(clause) != 2:
raise ValueError("Clauses tuples must be of length 2.")
conditionFn = _Function.convert(clause[0])
funcSet.add(conditionFn)
resultantFn = _Function.convert(clause[1])
funcSet.add(resultantFn)
self._clauses.append((conditionFn, resultantFn))
# build parent
self._fncself = _cfn.Conditional()
super(conditional, self).__init__(argument_fns=funcSet, **kwargs)
# insert clause into c object now
for clause in self._clauses:
self._fncself.insert(clause[0]._fncself, clause[1]._fncself)
def __init__(self, fn_stress, fn_stresslimit, fn_inputviscosity, *args, **kwargs):
_fn_stress = _Function.convert(fn_stress)
if _fn_stress == None:
raise ValueError( "Provided 'fn_stress' must a 'Function' or convertible type.")
self._fn_stress = _fn_stress
_fn_stresslimit = _Function.convert(fn_stresslimit)
if _fn_stresslimit == None:
raise ValueError( "Provided 'fn_stresslimit' must a 'Function' or convertible type.")
self._fn_stresslimit = _fn_stresslimit
_fn_inputviscosity = _Function.convert(fn_inputviscosity)
if _fn_inputviscosity == None:
raise ValueError( "Provided 'fn_inputviscosity' must a 'Function' or convertible type.")
self._fn_inputviscosity = _fn_inputviscosity
# grab second inv of stress
secondInvFn = _tensor.second_invariant(self._fn_stress)
# create conditional
self._conditional = _branching.conditional( [ ( secondInvFn > _fn_stresslimit , fn_inputviscosity*_fn_stresslimit/secondInvFn ), # if over limit, reduce viscosity
( True , fn_inputviscosity ) ] ) # else return viscosity
# this function is not based on a c function itself, so instead point the c pointer to the conditionals.
self._fncself = self._conditional._fncself
# build parent
super(stress_limiting_viscosity,self).__init__(argument_fns=[_fn_stress,_fn_stresslimit,_fn_inputviscosity],**kwargs)
def __init__(self, clauses, *args, **kwargs):
# error check mapping
if not isinstance(clauses, (list,tuple)):
raise TypeError("'clauses' object passed in must be of python type 'list' or 'tuple'")
self._clauses = []
funcSet = set()
for clause in clauses:
if not isinstance(clause, (list,tuple)):
raise TypeError("Clauses within the clause list must be of python type 'list' or 'tuple'")
if len(clause) != 2:
raise ValueError("Clauses tuples must be of length 2.")
conditionFn = _Function.convert(clause[0])
funcSet.add(conditionFn)
resultantFn = _Function.convert(clause[1])
funcSet.add(resultantFn)
self._clauses.append( (conditionFn,resultantFn) )
# build parent
self._fncself = _cfn.Conditional()
super(conditional,self).__init__(argument_fns=funcSet,**kwargs)
# insert clause into c object now
for clause in self._clauses:
self._fncself.insert( clause[0]._fncself, clause[1]._fncself )
def __init__(self, fn1, fn2, **kwargs):
fn1fn = _Function._CheckIsFnOrConvertOrThrow( fn1 )
if not isinstance( fn1fn, _Function ):
raise TypeError("Functions must be of type (or convertible to) 'Function'.")
fn2fn = _Function._CheckIsFnOrConvertOrThrow( fn2 )
if not isinstance( fn2fn, _Function ):
raise TypeError("Functions must be of type (or convertible to) 'Function'.")
self._fn1 = fn1fn
self._fn2 = fn2fn
# ok finally lets create the fn
self._fncself = _cfn.MathBinary(self._fn1._fncself, self._fn2._fncself, _cfn.MathBinary.fmax )
# build parent
super(max,self).__init__(argument_fns=[fn1fn,fn2fn],**kwargs)
def __init__(self,
fn_key=None,
mapping=None,
fn_default=None,
*args,
**kwargs):
if not mapping:
raise ValueError(
"You must specify a mapping via the 'mapping' parameter.")
if not isinstance(mapping, dict):
raise TypeError(
"'mapping' object passed in must be of python type 'dict'")
if not fn_key:
raise ValueError(
"You must specify a key function via the 'fn_key' parameter.")
fn_key = _Function.convert(fn_key)
self.fn_default = _Function.convert(fn_default)
if self.fn_default == None:
fn_defaultCself = None
else:
fn_defaultCself = self.fn_default._fncself
# create instance
self._fncself = _cfn.Map(fn_key._fncself, fn_defaultCself)
self._fn_key = fn_key
self._mapping = mapping
# build parent
super(map, self).__init__(argument_fns=[fn_key, self.fn_default],
**kwargs)
self._map = {}
for key, value in mapping.iteritems():
if not isinstance(key, int) or key < 0:
raise ValueError(
"Key '{}' not valid. Mapping keys must be unsigned integers."
.format(key))
funcVal = _Function.convert(value)
if funcVal == None:
raise ValueError("'None' is not valid for mapped functions.")
self._underlyingDataItems.update(
funcVal._underlyingDataItems) # update dictionary
# insert mapping and keep handles in py dict
self._map[key] = funcVal
self._fncself.insert(key, funcVal._fncself)
def __init__(self, fn1, fn2, **kwargs):
fn1fn = _Function.convert( fn1 )
if not isinstance( fn1fn, _Function ):
raise TypeError("Functions must be of type (or convertible to) 'Function'.")
fn2fn = _Function.convert( fn2 )
if not isinstance( fn2fn, _Function ):
raise TypeError("Functions must be of type (or convertible to) 'Function'.")
self._fn1 = fn1fn
self._fn2 = fn2fn
# ok finally lets create the fn
self._fncself = _cfn.Min(self._fn1._fncself, self._fn2._fncself )
# build parent
super(min,self).__init__(argument_fns=[fn1fn,fn2fn],**kwargs)
def __init__(self, vertices, fn=None, *args, **kwargs):
if fn:
self._fn = _Function.convert(fn)
else:
self._fn = _input()
if not isinstance(vertices, _np.ndarray):
raise TypeError("Provided 'vertices' must be a numpy array.")
if len(vertices.shape) != 2:
raise TypeError("Provided 'vertices' array must be 2 dimensional.")
if vertices.shape[0] < 3:
raise TypeError(
"Provided 'vertices' array must contain at least 3 vertices.")
if vertices.shape[1] != 2:
raise TypeError(
"Provided 'vertices' array must contain 2d vectors.")
# ok, need to create a 3d array from the 2d array.. create array of required size
threedeearray = _np.zeros((vertices.shape[0], 3))
# now copy
threedeearray[:, 0:2] = vertices[:, 0:2]
# create instance
self._fncself = _cfn.Polygon(self._fn._fncself, threedeearray)
# build parent
super(Polygon, self).__init__(argument_fns=[
fn,
], *args, **kwargs)
def __init__(self, vertices, fn=None, *args, **kwargs):
if fn:
self._fn = _Function._CheckIsFnOrConvertOrThrow(fn)
else:
self._fn = input()
if not isinstance(vertices, np.ndarray):
raise TypeError( "Provided 'vertices' must be a numpy array." )
if len(vertices.shape) != 2:
raise TypeError( "Provided 'vertices' array must be 2 dimensional." )
if vertices.shape[0] < 3:
raise TypeError( "Provided 'vertices' array must contain at least 3 vertices." )
if vertices.shape[1] != 2:
raise TypeError( "Provided 'vertices' array must contain 2d vectors." )
# ok, need to create a 3d array from the 2d array.. create array of required size
threedeearray = np.zeros( (vertices.shape[0],3) )
# now copy
threedeearray[:,0:2] = vertices[:,0:2]
# create instance
import random
import string
self._id = "".join(random.choice(string.ascii_uppercase + string.digits) for _ in range(8))
self._fncself = _cfn.Polygon( self._fn._fncself, threedeearray, self._id )
# build parent
super(Polygon,self).__init__(argument_fns=[fn,], *args, **kwargs)
def __init__(self, vertices, fn=None, *args, **kwargs):
if fn:
self._fn = _Function.convert(fn)
else:
self._fn = _input()
if not isinstance(vertices, _np.ndarray):
raise TypeError( "Provided 'vertices' must be a numpy array." )
if len(vertices.shape) != 2:
raise TypeError( "Provided 'vertices' array must be 2 dimensional." )
if vertices.shape[0] < 3:
raise TypeError( "Provided 'vertices' array must contain at least 3 vertices." )
if vertices.shape[1] != 2:
raise TypeError( "Provided 'vertices' array must contain 2d vectors." )
# ok, need to create a 3d array from the 2d array.. create array of required size
threedeearray = _np.zeros( (vertices.shape[0],3) )
# now copy
threedeearray[:,0:2] = vertices[:,0:2]
# create instance
self._fncself = _cfn.Polygon( self._fn._fncself, threedeearray)
# build parent
super(Polygon,self).__init__(argument_fns=[fn,], *args, **kwargs)
def __init__(self, fn_key=None, mapping=None, fn_default=None, keyFunc=None, mappingDict=None, defaultFunc=None, *args, **kwargs):
#DEPRECATE
if keyFunc:
raise RuntimeError("Note that the 'keyFunc' parameter has been renamed to 'fn_key'.")
if mappingDict:
raise RuntimeError("Note that the 'mappingDict' parameter has been renamed to 'mapping'.")
if defaultFunc:
raise RuntimeError("Note that the 'defaultFunc' parameter has been renamed to 'fn_default'.")
if not mapping:
raise ValueError("You must specify a mapping via the 'mapping' parameter.")
if not isinstance(mapping, dict):
raise TypeError("'mapping' object passed in must be of python type 'dict'")
if not fn_key:
raise ValueError("You must specify a key function via the 'fn_key' parameter.")
fn_key = _Function._CheckIsFnOrConvertOrThrow(fn_key)
self.fn_default = _Function._CheckIsFnOrConvertOrThrow(fn_default)
if self.fn_default == None:
fn_defaultCself = None
else:
fn_defaultCself = self.fn_default._fncself
# create instance
self._fncself = _cfn.Map( fn_key._fncself, fn_defaultCself )
self._fn_key = fn_key
self._mapping = mapping
# build parent
super(map,self).__init__(argument_fns=[fn_key,self.fn_default],**kwargs)
self._map = {}
for key, value in mapping.iteritems():
if not isinstance(key, int) or key < 0:
raise ValueError("Key '{}' not valid. Mapping keys must be unsigned integers.".format(key))
funcVal = _Function._CheckIsFnOrConvertOrThrow(value)
if funcVal == None:
raise ValueError("'None' is not valid for mapped functions.")
self._underlyingDataItems.update(funcVal._underlyingDataItems) # update dictionary
# insert mapping and keep handles in py dict
self._map[key] = funcVal
self._fncself.insert( key, funcVal._fncself )
def __init__(self, fn1, fn2, **kwargs):
# lets convert integer powers to floats
if isinstance(fn2, int):
fn2 = float(fn2)
fn1fn = _Function.convert( fn1 )
if not isinstance( fn1fn, _Function ):
raise TypeError("Functions must be of type (or convertible to) 'Function'.")
fn2fn = _Function.convert( fn2 )
if not isinstance( fn2fn, _Function ):
raise TypeError("Functions must be of type (or convertible to) 'Function'.")
self._fn1 = fn1fn
self._fn2 = fn2fn
# ok finally lets create the fn
self._fncself = _cfn.MathBinary(self._fn1._fncself, self._fn2._fncself, _cfn.MathBinary.pow )
# build parent
super(pow,self).__init__(argument_fns=[fn1fn,fn2fn],**kwargs)
def __init__(self, fn1, fn2, **kwargs):
fn1fn = _Function._CheckIsFnOrConvertOrThrow(fn1)
if not isinstance(fn1fn, _Function):
raise TypeError(
"Functions must be of type (or convertible to) 'Function'.")
fn2fn = _Function._CheckIsFnOrConvertOrThrow(fn2)
if not isinstance(fn2fn, _Function):
raise TypeError(
"Functions must be of type (or convertible to) 'Function'.")
self._fn1 = fn1fn
self._fn2 = fn2fn
# ok finally lets create the fn
self._fncself = _cfn.MathBinary(self._fn1._fncself, self._fn2._fncself,
_cfn.MathBinary.fmax)
# build parent
super(max, self).__init__(argument_fns=[fn1fn, fn2fn], **kwargs)
def __init__(self, fn, *args, **kwargs):
_fn = _Function._CheckIsFnOrConvertOrThrow(fn)
if _fn == None:
raise ValueError( "provided 'fn' must a 'Function' or convertible.")
self._fn = _fn
# create instance
self._fncself = _cfn.TensorFunc( self._fn._fncself, _cfn.TensorFunc.second_invariant )
# build parent
super(second_invariant,self).__init__(argument_fns=[fn,],**kwargs)
def __init__(self, fn, *args, **kwargs):
_fn = _Function._CheckIsFnOrConvertOrThrow(fn)
if _fn == None:
raise ValueError( "provided 'fn' must a 'Function' or convertible.")
self._fn = _fn
# create instance
self._fncself = _cfn.SafeMaths( self._fn._fncself )
# build parent
super(SafeMaths,self).__init__(argument_fns=[_fn,],**kwargs)
def __init__(self, fn, *args, **kwargs):
_fn = _Function.convert(fn)
if _fn == None:
raise ValueError( "provided 'fn' must a 'Function' or convertible.")
self._fn = _fn
# create instance
self._fncself = _cfn.TensorFunc( self._fn._fncself, _cfn.TensorFunc.get_antisymmetric )
# build parent
super(antisymmetric,self).__init__(argument_fns=[fn,],**kwargs)
def __init__(self, fn, *args, **kwargs):
_fn = _Function.convert(fn)
if _fn == None:
raise ValueError( "provided 'fn' must a 'Function' or convertible.")
self._fn = _fn
# create instance
self._fncself = _cfn.MinMax( self._fn._fncself )
# build parent
super(min_max,self).__init__(argument_fns=[fn,],**kwargs)
def __init__(self, fn=None, *args, **kwargs):
self._fn = _Function._CheckIsFnOrConvertOrThrow(fn)
fncself = None
if self._fn:
fncself = self._fn._fncself
# create instance
self._fncself = _cfn.MathUnary_abs( fncself )
# build parent
super(abs,self).__init__(argument_fns=[fn,],**kwargs)
def __init__(self, fn=None, *args, **kwargs):
self._fn = _Function.convert(fn)
fncself = None
if self._fn:
fncself = self._fn._fncself
# create instance
self._fncself = _cfn.MathUnary_sin( fncself )
# build parent
super(sin,self).__init__(argument_fns=[fn,],**kwargs)
def __init__(self, fn=None, *args, **kwargs):
self._fn = _Function.convert(fn)
fncself = None
if self._fn:
fncself = self._fn._fncself
# create instance
self._fncself = _cfn.MathUnary_sin( fncself )
# build parent
super(sin,self).__init__(argument_fns=[fn,],**kwargs)
def __init__(self, fn, *args, **kwargs):
_fn = _Function.convert(fn)
if _fn == None:
raise ValueError("provided 'fn' must a 'Function' or convertible.")
self._fn = _fn
# create instance
self._fncself = _cfn.MinMax(self._fn._fncself)
# build parent
super(min_max, self).__init__(argument_fns=[
fn,
], **kwargs)
def __init__(self, fn, *args, **kwargs):
_fn = _Function._CheckIsFnOrConvertOrThrow(fn)
if _fn == None:
raise ValueError("provided 'fn' must a 'Function' or convertible.")
self._fn = _fn
# create instance
self._fncself = _cfn.SafeMaths(self._fn._fncself)
# build parent
super(SafeMaths, self).__init__(argument_fns=[
_fn,
], **kwargs)
def __init__(self, fn_stress, fn_stresslimit, fn_inputviscosity, stressFn=None, stressLimitFn=None, inputViscosityFn=None, *args, **kwargs):
# DEPRECATE 1/16
if stressFn:
raise RuntimeError("Note that the 'stressFn' parameter has been renamed to 'fn_stress'.")
if stressLimitFn:
raise RuntimeError("Note that the 'stressLimitFn' parameter has been renamed to 'fn_stresslimit'.")
if inputViscosityFn:
raise RuntimeError("Note that the 'inputViscosityFn' parameter has been renamed to 'fn_inputviscosity'.")
_fn_stress = _Function._CheckIsFnOrConvertOrThrow(fn_stress)
if _fn_stress == None:
raise ValueError( "Provided 'fn_stress' must a 'Function' or convertible type.")
self._fn_stress = _fn_stress
_fn_stresslimit = _Function._CheckIsFnOrConvertOrThrow(fn_stresslimit)
if _fn_stresslimit == None:
raise ValueError( "Provided 'fn_stresslimit' must a 'Function' or convertible type.")
self._fn_stresslimit = _fn_stresslimit
_fn_inputviscosity = _Function._CheckIsFnOrConvertOrThrow(fn_inputviscosity)
if _fn_inputviscosity == None:
raise ValueError( "Provided 'fn_inputviscosity' must a 'Function' or convertible type.")
self._fn_inputviscosity = _fn_inputviscosity
# grab second inv of stress
secondInvFn = _tensor.second_invariant(self._fn_stress)
# create conditional
self._conditional = _branching.conditional( [ ( secondInvFn > _fn_stresslimit , fn_inputviscosity*_fn_stresslimit/secondInvFn ), # if over limit, reduce viscosity
( True , fn_inputviscosity ) ] ) # else return viscosity
# this function is not based on a c function itself, so instead point the c pointer to the conditionals.
self._fncself = self._conditional._fncself
# build parent
super(stress_limiting_viscosity,self).__init__(argument_fns=[_fn_stress,_fn_stresslimit,_fn_inputviscosity],**kwargs)
def __init__(self, fn_input, fn_condition, fn_print=None, *args, **kwargs):
_fn_input = _Function.convert(fn_input)
if _fn_input == None:
raise ValueError(
"provided 'fn_input' must a 'Function' or convertible.")
self._fn_input = _fn_input
_fn_condition = _Function.convert(fn_condition)
if _fn_condition == None:
raise ValueError(
"provided 'fn_condition' must a 'Function' or convertible.")
self._fn_condition = _fn_condition
if fn_print != None:
_fn_print = _Function.convert(fn_print)
if _fn_print == None:
raise ValueError(
"provided 'fn_print' must a 'Function' or convertible.")
self._fn_print = _fn_print
# create instance
if not fn_print:
self._fncself = _cfn.CustomException(self._fn_input._fncself,
self._fn_condition._fncself)
else:
self._fncself = _cfn.CustomException(self._fn_input._fncself,
self._fn_condition._fncself,
self._fn_print._fncself)
# build parent
# note that we only pass in _fn_input as the argument_fns, as _fn_condition & _fn_print are
# not dynamically relevant... it is only used for performing the exception check.
super(CustomException, self).__init__(argument_fns=[
_fn_input,
],
**kwargs)
def __init__(self, fn, *args, **kwargs):
_fn = _Function._CheckIsFnOrConvertOrThrow(fn)
if _fn == None:
raise ValueError("provided 'fn' must a 'Function' or convertible.")
self._fn = _fn
# create instance
self._fncself = _cfn.TensorFunc(self._fn._fncself,
_cfn.TensorFunc.second_invariant)
# build parent
super(second_invariant, self).__init__(argument_fns=[
fn,
], **kwargs)
def __init__(self, fn=None, *args, **kwargs):
self._fn = _Function._CheckIsFnOrConvertOrThrow(fn)
fncself = None
if self._fn:
fncself = self._fn._fncself
# create instance
self._fncself = _cfn.MathUnary_abs(fncself)
# build parent
super(abs, self).__init__(argument_fns=[
fn,
], **kwargs)
def __init__(self, vertices, fn=None, *args, **kwargs):
if fn:
self._fn = _Function._CheckIsFnOrConvertOrThrow(fn)
else:
self._fn = input()
if not isinstance(vertices, np.ndarray):
raise TypeError("Provided 'vertices' must be a numpy array.")
if len(vertices.shape) != 2:
raise TypeError("Provided 'vertices' array must be 2 dimensional.")
if vertices.shape[0] < 3:
raise TypeError(
"Provided 'vertices' array must contain at least 3 vertices.")
if vertices.shape[1] != 2:
raise TypeError(
"Provided 'vertices' array must contain 2d vectors.")
# ok, need to create a 3d array from the 2d array.. create array of required size
threedeearray = np.zeros((vertices.shape[0], 3))
# now copy
threedeearray[:, 0:2] = vertices[:, 0:2]
# create instance
import random
import string
self._id = "".join(
random.choice(string.ascii_uppercase + string.digits)
for _ in range(8))
self._fncself = _cfn.Polygon(self._fn._fncself, threedeearray,
self._id)
# build parent
super(Polygon, self).__init__(argument_fns=[
fn,
], *args, **kwargs)
def __init__(self,
fn_stress,
fn_stresslimit,
fn_inputviscosity,
stressFn=None,
stressLimitFn=None,
inputViscosityFn=None,
*args,
**kwargs):
# DEPRECATE 1/16
if stressFn:
raise RuntimeError(
"Note that the 'stressFn' parameter has been renamed to 'fn_stress'."
)
if stressLimitFn:
raise RuntimeError(
"Note that the 'stressLimitFn' parameter has been renamed to 'fn_stresslimit'."
)
if inputViscosityFn:
raise RuntimeError(
"Note that the 'inputViscosityFn' parameter has been renamed to 'fn_inputviscosity'."
)
_fn_stress = _Function._CheckIsFnOrConvertOrThrow(fn_stress)
if _fn_stress == None:
raise ValueError(
"Provided 'fn_stress' must a 'Function' or convertible type.")
self._fn_stress = _fn_stress
_fn_stresslimit = _Function._CheckIsFnOrConvertOrThrow(fn_stresslimit)
if _fn_stresslimit == None:
raise ValueError(
"Provided 'fn_stresslimit' must a 'Function' or convertible type."
)
self._fn_stresslimit = _fn_stresslimit
_fn_inputviscosity = _Function._CheckIsFnOrConvertOrThrow(
fn_inputviscosity)
if _fn_inputviscosity == None:
raise ValueError(
"Provided 'fn_inputviscosity' must a 'Function' or convertible type."
)
self._fn_inputviscosity = _fn_inputviscosity
# grab second inv of stress
secondInvFn = _tensor.second_invariant(self._fn_stress)
# create conditional
self._conditional = _branching.conditional([
(secondInvFn > _fn_stresslimit, fn_inputviscosity *
_fn_stresslimit / secondInvFn), # if over limit, reduce viscosity
(True, fn_inputviscosity)
]) # else return viscosity
# this function is not based on a c function itself, so instead point the c pointer to the conditionals.
self._fncself = self._conditional._fncself
# build parent
super(stress_limiting_viscosity, self).__init__(
argument_fns=[_fn_stress, _fn_stresslimit, _fn_inputviscosity],
**kwargs)