def test_ApplyFunctionToNodesUtility(self):
parameters = KM.Parameters ("""{
"origin" : [0,0,0],
"axes" : [[0,1,0],[1,0,0],[0,0,1]]
}""")
function = KM.PythonGenericFunctionUtility("x+2*y", parameters)
self.assertTrue(function.DependsOnSpace())
self.assertTrue(function.UseLocalSystem())
self.assertEqual(function.FunctionBody(), "x+2*y")
self.assertEqual(function.CallFunction(4.0,3.0,0.0,0.0,0.0,0.0,0.0), 10)
self.assertEqual(function.RotateAndCallFunction(4.0,3.0,0.0,0.0,0.0,0.0,0.0), 11)
this_model = KM.Model()
model_part = this_model.CreateModelPart("Main", 2)
current_process_info = model_part.ProcessInfo
current_process_info[KM.DOMAIN_SIZE] = 2
model_part.AddNodalSolutionStepVariable(KM.DISPLACEMENT)
model_part.AddNodalSolutionStepVariable(KM.VISCOSITY)
model_part_io = KM.ModelPartIO(GetFilePath("auxiliar_files_for_python_unittest/mdpa_files/test_model_part_io_read"))
model_part_io.ReadModelPart(model_part)
utility = KM.ApplyFunctionToNodesUtility(model_part.Nodes, function)
utility.ApplyFunction(KM.VISCOSITY, 1.0)
for node in model_part.Nodes:
self.assertEqual(node.GetSolutionStepValue(KM.VISCOSITY) - (node.Y + 2.0 * node.X), 0.0)
def __init__(self, Model, settings ):
""" The default constructor of the class
Keyword arguments:
self -- It signifies an instance of a class.
Model -- the container of the different model parts.
settings -- Kratos parameters containing solver settings.
"""
KratosMultiphysics.Process.__init__(self)
#The value can be a double or a string (function)
default_settings = KratosMultiphysics.Parameters("""
{
"help" : "This process sets a given scalar value for a certain variable in all the nodes of a submodelpart",
"mesh_id" : 0,
"model_part_name" : "please_specify_model_part_name",
"variable_name" : "SPECIFY_VARIABLE_NAME",
"interval" : [0.0, 1e30],
"constrained" : true,
"value" : 0.0,
"local_axes" : {}
}
"""
)
# Assign this here since it will change the "interval" prior to validation
self.interval = KratosMultiphysics.IntervalUtility(settings)
# Here i do a trick, since i want to allow "value" to be a string or a double value
if settings.Has("value"):
if settings["value"].IsString():
default_settings["value"].SetString("0.0")
settings.ValidateAndAssignDefaults(default_settings)
self.variable = KratosMultiphysics.KratosGlobals.GetVariable(settings["variable_name"].GetString())
if not isinstance(self.variable, KratosMultiphysics.DoubleVariable) and not isinstance(self.variable, KratosMultiphysics.VectorVariable):
msg = "Error in AssignScalarToNodesProcess. Variable type of variable : " + settings["variable_name"].GetString() + " is incorrect . Must be a scalar or a component"
raise Exception(msg)
self.model_part = Model[settings["model_part_name"].GetString()]
self.mesh = self.model_part.GetMesh(settings["mesh_id"].GetInt())
self.is_fixed = settings["constrained"].GetBool()
self.value_is_numeric = False
if settings["value"].IsNumber():
self.value_is_numeric = True
self.value = settings["value"].GetDouble()
else:
self.function_string = settings["value"].GetString()
self.aux_function = KratosMultiphysics.PythonGenericFunctionUtility(self.function_string, settings["local_axes"])
if self.aux_function.DependsOnSpace():
self.cpp_apply_function_utility = KratosMultiphysics.ApplyFunctionToNodesUtility(self.mesh.Nodes, self.aux_function )
# Construct a variable_utils object to speedup fixing
self.variable_utils = KratosMultiphysics.VariableUtils()
self.step_is_active = False
def __init__(self, Model, settings):
KratosMultiphysics.Process.__init__(self)
default_settings = KratosMultiphysics.Parameters("""
{
"mesh_id" : 0,
"model_part_name" : "please_specify_model_part_name",
"variable_name" : "SPECIFY_VARIABLE_NAME",
"interval" : [0.0, 1e30],
"constrained" : true,
"value" : 0.0,
"local_axes" : {}
}
""")
#assign this here since it will change the "interval" prior to validation
self.interval = KratosMultiphysics.IntervalUtility(settings)
#here i do a trick, since i want to allow "value" to be a string or a double value
if (settings.Has("value")):
if (settings["value"].IsString()):
default_settings["value"].SetString("0.0")
settings.ValidateAndAssignDefaults(default_settings)
self.variable = KratosMultiphysics.KratosGlobals.GetVariable(
settings["variable_name"].GetString())
if (type(self.variable) != KratosMultiphysics.Array1DComponentVariable
and type(self.variable) != KratosMultiphysics.DoubleVariable
and type(self.variable) != KratosMultiphysics.VectorVariable):
msg = "Error in AssignScalarToNodesProcess. Variable type of variable : " + settings[
"variable_name"].GetString(
) + " is incorrect . Must be a scalar or a component"
raise Exception(msg)
self.model_part = Model[settings["model_part_name"].GetString()]
self.mesh = self.model_part.GetMesh(settings["mesh_id"].GetInt())
self.is_fixed = settings["constrained"].GetBool()
self.value_is_numeric = False
if settings["value"].IsNumber():
self.value_is_numeric = True
self.value = settings["value"].GetDouble()
else:
self.function_string = settings["value"].GetString()
self.aux_function = KratosMultiphysics.PythonGenericFunctionUtility(
self.function_string, settings["local_axes"])
if (self.aux_function.DependsOnSpace()):
self.cpp_apply_function_utility = KratosMultiphysics.ApplyFunctionToNodesUtility(
self.mesh.Nodes, self.aux_function)
#construct a variable_utils object to speedup fixing
self.variable_utils = KratosMultiphysics.VariableUtils()
self.step_is_active = False
def __init__(self, Model, settings):
default_settings = KratosMultiphysics.Parameters("""
{
"mesh_id" : 0,
"model_part_name" : "Outlet2D_Outlet_pressure_Auto1",
"variable_name" : "TEMPERATURE",
"interval" : [0.0, 10.0],
"is_fixed" : true,
"free_outside_of_interval" : false,
"f(x,y,z,t)" : "x+y"
}
""")
settings.ValidateAndAssignDefaults(default_settings)
KratosMultiphysics.Process.__init__(self)
self.model_part = Model[settings["model_part_name"].GetString()]
self.variable = getattr(KratosMultiphysics,
settings["variable_name"].GetString())
self.mesh = self.model_part.GetMesh(settings["mesh_id"].GetInt())
#self.table = model_part.GetTable(table_id)
self.interval = settings[
"interval"] #expected to be a vector of size 2
self.is_fixed = settings["is_fixed"].GetBool()
self.free_outside_of_interval = settings[
"free_outside_of_interval"].GetBool()
self.function_string = settings["f(x,y,z,t)"].GetString()
##compile function function_string
if (sys.version_info > (3, 0)):
self.compiled_function = compile(
self.function_string, '', 'eval', optimize=2
) #here we precompile the expression so that then it is much faster to execute it
else:
self.compiled_function = compile(self.function_string, '', 'eval')
#construct a variable_utils object to speedup fixing
self.variable_utils = KratosMultiphysics.VariableUtils()
self.tmp = KratosMultiphysics.PythonGenericFunctionUtility(
aux_object_cpp_callback(self.compiled_function))
self.cpp_apply_function_utility = KratosMultiphysics.ApplyFunctionToNodesUtility(
self.mesh.Nodes, self.tmp)
print("finished construction of ApplyCustomFunctionProcess Process")
