ElasticEase.Springiness Property

Reference

Definition

Namespace:: System.Windows.Media.Animation

Assembly:: PresentationCore.dll

Important

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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.

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

public double Springiness { get; set; }

member this.Springiness : double with get, set

Public Property Springiness As Double

Property Value

Double

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

Examples

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.

XAML

<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>

Remarks

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.

XAML Attribute Usage

<ElasticEase Springiness="double"/>

Applies to

Product	Versions
.NET Framework	4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
Windows Desktop	3.0, 3.1, 5, 6, 7, 8, 9, 10

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