Adobe® Flex® 4 Language Reference
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spark.effects.easing 

The spark.effects.easing package contains the easing classes for the Spark effect classes.



Interfaces
 InterfaceDescription
 IEaser The IEaser interface is implemented by classes that provide time-easing functionality for the Animation class.
Classes
 ClassDescription
 Bounce The Bounce class implements easing functionality simulating gravity pulling on and bouncing the target object.
 EaseInOutBase The EaseInOutBase class is the base class that provide easing capability.
 EasingFraction The EasingFraction class defines constants for the easeInFraction property of the EaseInOutBase class.
 Elastic The Elastic class implements easing functionality where the target object movement is defined by an exponentially decaying sine wave.
 Linear The Linear class defines an easing with three phases: acceleration, uniform motion, and deceleration.
 Power The Power class defines the easing functionality using a polynomial expression.
 Sine The Sine class defines easing functionality using a Sine function.