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  • Artykuł

EasingFunctionBase Class

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Provides the base class for all the easing functions. You can create your own custom easing functions by inheriting from this class.

Inheritance Hierarchy

System.Object
  System.Windows.DependencyObject
    System.Windows.Media.Animation.EasingFunctionBase
      More...

Namespace:  System.Windows.Media.Animation
Assembly:  System.Windows (in System.Windows.dll)

Syntax

'Declaration
Public MustInherit Class EasingFunctionBase _
    Inherits DependencyObject _
    Implements IEasingFunction

public abstract class EasingFunctionBase : DependencyObject, 
    IEasingFunction

The EasingFunctionBase type exposes the following members.

Constructors

  Name Description
Protected methodSupported by Silverlight for Windows Phone EasingFunctionBase Initializes a new instance of the EasingFunctionBase class.

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Properties

  Name Description
Public propertySupported by Silverlight for Windows Phone Dispatcher Gets the Dispatcher this object is associated with. (Inherited from DependencyObject.)
Public propertySupported by Silverlight for Windows Phone EasingMode Gets or sets a value that specifies how the animation interpolates.

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Methods

  Name Description
Public methodSupported by Silverlight for Windows Phone CheckAccess Determines whether the calling thread has access to this object. (Inherited from DependencyObject.)
Public methodSupported by Silverlight for Windows Phone ClearValue Clears the local value of a dependency property. (Inherited from DependencyObject.)
Public methodSupported by Silverlight for Windows Phone Ease Transforms normalized time to control the pace of an animation.
Protected methodSupported by Silverlight for Windows Phone EaseInCore Provides the logic portion of the easing function that you can override to produce the EaseIn mode of the custom easing function.
Public methodSupported by Silverlight for Windows Phone Equals(Object) Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected methodSupported by Silverlight for Windows Phone Finalize Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
Public methodSupported by Silverlight for Windows Phone GetAnimationBaseValue Returns any base value established for a Silverlight dependency property, which would apply in cases where an animation is not active. (Inherited from DependencyObject.)
Public methodSupported by Silverlight for Windows Phone GetHashCode Serves as a hash function for a particular type. (Inherited from Object.)
Public methodSupported by Silverlight for Windows Phone GetType Gets the Type of the current instance. (Inherited from Object.)
Public methodSupported by Silverlight for Windows Phone GetValue Returns the current effective value of a dependency property from a DependencyObject. (Inherited from DependencyObject.)
Protected methodSupported by Silverlight for Windows Phone MemberwiseClone Creates a shallow copy of the current Object. (Inherited from Object.)
Public methodSupported by Silverlight for Windows Phone ReadLocalValue Returns the local value of a dependency property, if a local value is set. (Inherited from DependencyObject.)
Public methodSupported by Silverlight for Windows Phone SetValue Sets the local value of a dependency property on a DependencyObject. (Inherited from DependencyObject.)
Public methodSupported by Silverlight for Windows Phone ToString Returns a string that represents the current object. (Inherited from Object.)

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Fields

  Name Description
Public fieldStatic memberSupported by Silverlight for Windows Phone EasingModeProperty Identifies the EasingMode dependency property.

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Examples

The following example demonstrates how to create a simple custom easing function. You can add your own mathematical logic for how the easing function behaves by overriding the EaseInCore method.

Run this sample

namespace CustomEasingFunction
{
    public class CustomSeventhPowerEasingFunction : EasingFunctionBase
    {
        public CustomSeventhPowerEasingFunction() : base() 
        { 
        }   

        // Specify your own logic for the easing function by overriding
        // the EaseInCore method. Note that this logic applies to the "EaseIn"
        // mode of interpolation. 
        protected override double EaseInCore(double normalizedTime) 
        { 
            // applies the formula of time to the seventh power.
            return Math.Pow(normalizedTime, 7);
        }

    }
}

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.