BackEase.Amplitude Property

Reference

Definition

Namespace:: System.Windows.Media.Animation

Assembly:: PresentationCore.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Gets or sets the amplitude of retraction associated with a BackEase animation.

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

public double Amplitude { get; set; }

member this.Amplitude : double with get, set

Public Property Amplitude As Double

Property Value

Double

The amplitude of retraction associated with a BackEase animation. This value must be greater than or equal to 0.

The default value is 1.

Examples

The following example applies a BackEase easing function to a DoubleAnimation to create an animation that retracts slightly at the beginning and end of the animation.

XAML

<Rectangle Name="MyRectangle" Margin="60" Width="50" Height="50" Fill="Blue">
      <Rectangle.Triggers>
          <EventTrigger RoutedEvent="Rectangle.MouseDown">
              <BeginStoryboard>
                  <Storyboard>
                      <DoubleAnimation From="1" To="2" Duration="00:00:1" 
                     Storyboard.TargetName="myScaleTransform" 
                     Storyboard.TargetProperty="ScaleX">
                          <DoubleAnimation.EasingFunction>
                              <BackEase Amplitude="0.3" EasingMode="EaseInOut" />
                          </DoubleAnimation.EasingFunction>
                      </DoubleAnimation>
                      <DoubleAnimation From="1" To="2" Duration="00:00:1" 
                     Storyboard.TargetName="myScaleTransform" 
                     Storyboard.TargetProperty="ScaleY">
                          <DoubleAnimation.EasingFunction>
                              <BackEase Amplitude="0.3" EasingMode="EaseInOut" />
                          </DoubleAnimation.EasingFunction>
                      </DoubleAnimation>

                  </Storyboard>
              </BeginStoryboard>
          </EventTrigger>
      </Rectangle.Triggers>
      <Rectangle.RenderTransform>
          <ScaleTransform x:Name="myScaleTransform" />
      </Rectangle.RenderTransform>

  </Rectangle>

Remarks

Dependency property identifier field: AmplitudeProperty

The larger the amplitude, the larger the retraction before and/or after the animation.

Demonstrates different amplitude values.

XAML Attribute Usage

<object Amplitude="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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