OOF2: The Manual

`XYTFunction (FuncScalarFieldInit)`
	6.5.2. Subclasses

Name

XYTFunction (FuncScalarFieldInit) — Initialize a scalar field with a function of x, y, and t.

Synopsis

FuncScalarFieldInit(function)

Details

Base class: ScalarFieldInit
Parameters:

function

A function of x, y, and t Type: A string defining a function of x, y, and t

Description

FuncScalarFieldInit objects are used as the initializer argument in the OOF.Mesh.Set_Field_Initializer command when assigning initial values to scalar Fields on a Mesh. The function parameter must be a valid Python expression which depends on the variables x y, and t. This function will be used to initialize the Field at each point in the Mesh.

	Note
	The variable `t` is set to the time at which the `Fields`are initialized, when OOF.Mesh.Apply_Field_Initializers or OOF.Mesh.Apply_Field_Initializers_at_Time is invoked. Just because an initializer is a function of time does not mean that the `Field` has the given time dependence.

Examples. All of the following are legal values for function:

"100*x"
"cos(2*pi*x) + sin(pi*(k*y+t))"

where k is a constant defined in an input script or in the console window.
"1.234"
"f(x,y,t)"

where f is a function defined in an input script or in the console window.

The functions are character strings, and must therefore be enclosed in quotation marks in OOF2 scripts. When entering functions in the GUI, the quotation marks should not be included.


`Selected Segments (FromSelectedSegments)`		`XYTFunction (FuncSymmetricTensorFieldInit)`