Class AlphaFunction

    Definition

    Namespace:
    Tizen.NUI
    Assembly:
    Tizen.NUI.dll

    Alpha functions are used in animations to specify the rate of change of the animation parameter over time.
    Understanding an animation as a parametric function over time, the alpha function is applied to the parameter of the animation before computing the final animation value.

    public class AlphaFunction : Disposable, IDisposable
    Inheritance
    object
    Disposable
    AlphaFunction
    Implements
    System.IDisposable

    Constructors

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    AlphaFunction()

    The default constructor.
    Creates an alpha function object with the default built-in alpha function.

    Declaration
    public AlphaFunction()
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    AlphaFunction(Delegate)

    The constructor.
    Creates an alpha function object with the user-defined alpha function.

    Declaration
    public AlphaFunction(Delegate func)
    Parameters
    Type Name Description
    System.Delegate func

    User defined function. It must be a method formatted as float alphafunction(float progress)

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    AlphaFunction(BuiltinFunctions)

    The constructor.
    Creates an alpha function object with the built-in alpha function passed as a parameter to the constructor.

    Declaration
    public AlphaFunction(AlphaFunction.BuiltinFunctions function)
    Parameters
    Type Name Description
    AlphaFunction.BuiltinFunctions function

    One of the built-in alpha functions.

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    AlphaFunction(Vector2, Vector2)

    The constructor.
    Creates a bezier alpha function. The bezier will have the first point at (0,0) and the end point at (1,1).

    Declaration
    public AlphaFunction(Vector2 controlPoint0, Vector2 controlPoint1)
    Parameters
    Type Name Description
    Vector2 controlPoint0

    A Vector2 which will be used as the first control point of the curve.

    Vector2 controlPoint1

    A Vector2 which will be used as the second control point of the curve.

    Remarks

    The x components of the control points will be clamped to the range [0, 1] to prevent non-monotonic curves.

    Methods

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    GetBezierControlPoints(out Vector2, out Vector2)

    Retrieves the control points of the alpha function.

    Declaration
    public void GetBezierControlPoints(out Vector2 controlPoint0, out Vector2 controlPoint1)
    Parameters
    Type Name Description
    Vector2 controlPoint0

    A Vector2 which will be used as the first control point of the curve.

    Vector2 controlPoint1

    A Vector2 which will be used as the second control point of the curve.

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    GetBuiltinFunction()

    Returns the built-in function used by the alpha function.
    In case no built-in function has been specified, it will return AlphaFunction::DEFAULT.

    Declaration
    public AlphaFunction.BuiltinFunctions GetBuiltinFunction()
    Returns
    Type Description
    AlphaFunction.BuiltinFunctions

    One of the built-in alpha functions.

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    GetMode()

    Returns the functioning mode of the alpha function.

    Declaration
    public AlphaFunction.Modes GetMode()
    Returns
    Type Description
    AlphaFunction.Modes

    The functioning mode of the alpha function.

    Implements

    System.IDisposable
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