ElasticEase::Springiness Property

 

Gets or sets the stiffness of the spring. The smaller the Springiness value is, the stiffer the spring and the faster the elasticity decreases in intensity over each oscillation.

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

public:
property double Springiness {
	double get();
	void set(double value);
}

Property Value

Type: System::Double

A positive number that specifies the stiffness of the spring. The default value is 3.

The smaller the Springiness value is, the stiffer the spring and the faster the elasticity decreases in intensity over each oscillation.

Dependency property identifier field: SpringinessProperty

The following diagram illustrates the effect of different values of Springiness.

Demonstrates different Springiness values.

<ElasticEase Springiness="double"/>

The following example applies an ElasticEase easing function to a DoubleAnimation to create an animation that resembles a spring oscillating back and forth until it comes to rest.

<Rectangle Name="myRectangle" Width="200" Height="30" Fill="Blue">
    <Rectangle.Triggers>
        <EventTrigger RoutedEvent="Rectangle.MouseDown">
            <BeginStoryboard>
                <Storyboard>
                    <DoubleAnimation From="30" To="200" Duration="00:00:4" 
                     Storyboard.TargetName="myRectangle" 
                     Storyboard.TargetProperty="Height">
                        <DoubleAnimation.EasingFunction>

                            <!-- Elastic easing function assigned to From/To animation -->
                            <ElasticEase x:Name="myElasticEase" Oscillations="3" 
                             Springiness="1" EasingMode="EaseOut"/>
                        </DoubleAnimation.EasingFunction>
                    </DoubleAnimation>

                </Storyboard>
            </BeginStoryboard>
        </EventTrigger>
    </Rectangle.Triggers>

</Rectangle>

.NET Framework
Available since 4.0
Silverlight
Available since 3.0
Windows Phone Silverlight
Available since 7.0
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