ExponentialEase class (Windows)

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Represents an easing function that creates an animation that accelerates and/or decelerates using an exponential formula.

Inheritance

Object
DependencyObject
EasingFunctionBase
ExponentialEase

Syntax

C++


public sealed class ExponentialEase : EasingFunctionBase

XAML Object Element Usage


<ExponentialEase .../>

Attributes

ActivatableAttribute(NTDDI_WIN8)
MarshalingBehaviorAttribute(Agile)
StaticAttribute(Windows.UI.Xaml.Media.Animation.IExponentialEaseStatics, NTDDI_WIN8)
ThreadingAttribute(Both)
VersionAttribute(NTDDI_WIN8)
WebHostHiddenAttribute()

Members

The ExponentialEase class has these types of members:

Constructors
Methods
Properties

Constructors

The ExponentialEase class has these constructors.

Constructor	Description
ExponentialEase	Initializes a new instance of the ExponentialEase class.

Methods

The ExponentialEase class has these methods. It also inherits methods from the Object class.

Method	Description
ClearValue	Clears the local value of a dependency property. (Inherited from DependencyObject)
Ease	Transforms normalized time to control the pace of an animation. (Inherited from EasingFunctionBase)
GetAnimationBaseValue	Returns any base value established for a dependency property, which would apply in cases where an animation is not active. (Inherited from DependencyObject)
GetValue	Returns the current effective value of a dependency property from a DependencyObject. (Inherited from DependencyObject)
ReadLocalValue	Returns the local value of a dependency property, if a local value is set. (Inherited from DependencyObject)
SetValue	Sets the local value of a dependency property on a DependencyObject. (Inherited from DependencyObject)

Properties

The ExponentialEase class has these properties.

Property	Access type	Description
Dispatcher	Read-only	Gets the CoreDispatcher that this object is associated with. (Inherited from DependencyObject)
EasingMode	Read/write	Gets or sets a value that specifies how the animation interpolates. (Inherited from EasingFunctionBase)
Exponent	Read/write	Gets or sets the exponent used to determine the interpolation of the animation.
ExponentProperty	Read-only	Identifies the Exponent dependency property.

Remarks

ExponentialEase is an easing function that has a function-over-time formula that uses an Exponent value to shape the function-over-time curve. The value used for Exponent changes the shape of the curve quite a bit. Exponent can be negative, if so the function acts a bit like changing the EasingMode to EaseOut with a positive value. You might want to experiment with different values for Exponent and EasingMode when using this easing function.

An easing function can be applied to the EasingFunction properties of From/To/By animations, or to the EasingFunction properties of key-frame types used for the Easing variants of key-frame animations. For more info, see Key-frame animations and easing function animations.

Examples

This XAML example applies a ExponentialEase easing function to a DoubleAnimation to create a decelerating animation.

XAML


<StackPanel x:Name="LayoutRoot" >
    <StackPanel.Resources>
        <Storyboard x:Name="myStoryboard">
            <DoubleAnimation From="1" To="6" Duration="00:00:3" 
                Storyboard.TargetName="rectScaleTransform" 
                Storyboard.TargetProperty="ScaleY">
                <DoubleAnimation.EasingFunction>
                    <ExponentialEase Exponent="6" EasingMode="EaseOut"/>
                </DoubleAnimation.EasingFunction>
            </DoubleAnimation>
        </Storyboard>
    </StackPanel.Resources>

    <Rectangle PointerPressed="Pointer_Clicked" 
     Fill="Blue" Width="200" Height="30">
        <Rectangle.RenderTransform>
            <ScaleTransform x:Name="rectScaleTransform" />
        </Rectangle.RenderTransform>
    </Rectangle>

    </StackPanel>


// When the user clicks the rectangle, the animation
// begins. 
private void Pointer_Clicked(object sender, PointerRoutedEventArgs e)
{
    myStoryboard.Begin();
}

Requirements

Minimum supported client	Windows 8 [Windows Store apps only]
Minimum supported server	Windows Server 2012 [Windows Store apps only]
Namespace	Windows.UI.Xaml.Media.Animation Windows::UI::Xaml::Media::Animation [C++]
Metadata	Windows.winmd

ExponentialEase class