CircleEase Class
Definition
Important
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Represents an easing function that creates an animation that accelerates and/or decelerates using a circular function.
public ref class CircleEase sealed : EasingFunctionBase
/// [Windows.Foundation.Metadata.Activatable(65536, "Microsoft.UI.Xaml.WinUIContract")]
/// [Windows.Foundation.Metadata.ContractVersion(Microsoft.UI.Xaml.WinUIContract, 65536)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
/// [Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
class CircleEase final : EasingFunctionBase
[Windows.Foundation.Metadata.Activatable(65536, "Microsoft.UI.Xaml.WinUIContract")]
[Windows.Foundation.Metadata.ContractVersion(typeof(Microsoft.UI.Xaml.WinUIContract), 65536)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
public sealed class CircleEase : EasingFunctionBase
Public NotInheritable Class CircleEase
Inherits EasingFunctionBase
<CircleEase .../>
- Inheritance
- Attributes
Examples
This XAML example applies a CircleEase easing function to a DoubleAnimation to create a decelerating animation.
<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" EnableDependentAnimation="True">
<DoubleAnimation.EasingFunction>
<CircleEase EasingMode="EaseOut"/>
</DoubleAnimation.EasingFunction>
</DoubleAnimation>
</Storyboard>
</StackPanel.Resources>
<Rectangle x:Name="myRectangle" 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();
}
Remarks
CircleEase is an easing function that has a function-over-time formula that resembles a cosine curve when represented as a function-time graph. When EasingMode is EaseIn (the default), this easing function starts slow and accelerates gradually as it reaches the end. It reaches about 15% value halfway through the duration.
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.
The formula used for this function is:
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.
Constructors
CircleEase() |
Initializes a new instance of the CircleEase class. |
Properties
Dispatcher |
Always returns |
DispatcherQueue |
Gets the |
EasingMode |
Gets or sets a value that specifies how the animation interpolates. (Inherited from EasingFunctionBase) |
Methods
ClearValue(DependencyProperty) |
Clears the local value of a dependency property. (Inherited from DependencyObject) |
Ease(Double) |
Transforms normalized time to control the pace of an animation. (Inherited from EasingFunctionBase) |
GetAnimationBaseValue(DependencyProperty) |
Returns any base value established for a dependency property, which would apply in cases where an animation is not active. (Inherited from DependencyObject) |
GetValue(DependencyProperty) |
Returns the current effective value of a dependency property from a DependencyObject. (Inherited from DependencyObject) |
ReadLocalValue(DependencyProperty) |
Returns the local value of a dependency property, if a local value is set. (Inherited from DependencyObject) |
RegisterPropertyChangedCallback(DependencyProperty, DependencyPropertyChangedCallback) |
Registers a notification function for listening to changes to a specific DependencyProperty on this DependencyObject instance. (Inherited from DependencyObject) |
SetValue(DependencyProperty, Object) |
Sets the local value of a dependency property on a DependencyObject. (Inherited from DependencyObject) |
UnregisterPropertyChangedCallback(DependencyProperty, Int64) |
Cancels a change notification that was previously registered by calling RegisterPropertyChangedCallback. (Inherited from DependencyObject) |