The org.flashapi.tween package contains the BeeTween API. The BeeTween API includes tween classes and Easing libraries that create easing effects within the SPAS 3.0 API.
In digital animation, tweening is the process of generating intermediate frames between two images to give the appearance that the first image evolves smoothly into the second image. Within the SPAS 3.0 API, inbetweening using automatic interpolation is called tweening, and the resulting sequence of frames is called a tween.
"Ease-in" and "ease-out" in digital animation typically refers
to a mechanism for defining the 'physics' of the transition between
two animation states, eg. the linearity of a tween. Easing
objects define "ease-in", "ease-out" and the possibility to use both
mechanisms for defining the
equation property that
represents the 'physics' of the transition between animation states.
Easing equations are all based upon
Robert Penner's Easing Equations:
v1.3 - Oct. 29, 2002 - (c) 2002
|BTween||The BTween class defines a tween, a property animation performed on a target object over a period of time.|
|Tween||The Tween class defines a tween, a property animation performed on a target object over a period of time.|
|TweenSequencer||The TweenSequencer class allows developers to easilly work with and control several SequentialTween instances from a centralized controller object.|