Packagefl.motion.easing
Classpublic class Back

The Back class defines three easing functions to implement motion with ActionScript animations.

See also

Motion XML Elements
fl.motion.FunctionEase


Public Methods
 MethodDefined by
  
easeIn(t:Number, b:Number, c:Number, d:Number, s:Number = 0):Number
[static] The easeIn() method starts the motion by backtracking and then reversing direction and moving toward the target.
Back
  
easeInOut(t:Number, b:Number, c:Number, d:Number, s:Number = 0):Number
[static] The easeInOut() method combines the motion of the easeIn() and easeOut() methods to start the motion by backtracking, then reversing direction and moving toward the target, overshooting the target slightly, reversing direction again, and then moving back toward the target.
Back
  
easeOut(t:Number, b:Number, c:Number, d:Number, s:Number = 0):Number
[static] The easeOut() method starts the motion by moving towards the target, overshooting it slightly, and then reversing direction back toward the target.
Back
Method detail
easeIn()method
public static function easeIn(t:Number, b:Number, c:Number, d:Number, s:Number = 0):Number

The easeIn() method starts the motion by backtracking and then reversing direction and moving toward the target.

Parameters
t:Number — Specifies the current time, between 0 and duration inclusive.
 
b:Number — Specifies the initial value of the animation property.
 
c:Number — Specifies the total change in the animation property.
 
d:Number — Specifies the duration of the motion.
 
s:Number (default = 0) — Specifies the amount of overshoot, where the higher the value, the greater the overshoot.

Returns
Number — The value of the interpolated property at the specified time.

See also

fl.motion.FunctionEase
easeInOut()method 
public static function easeInOut(t:Number, b:Number, c:Number, d:Number, s:Number = 0):Number

The easeInOut() method combines the motion of the easeIn() and easeOut() methods to start the motion by backtracking, then reversing direction and moving toward the target, overshooting the target slightly, reversing direction again, and then moving back toward the target.

Parameters
t:Number — Specifies the current time, between 0 and duration inclusive.
 
b:Number — Specifies the initial value of the animation property.
 
c:Number — Specifies the total change in the animation property.
 
d:Number — Specifies the duration of the motion.
 
s:Number (default = 0) — Specifies the amount of overshoot, where the higher the value, the greater the overshoot.

Returns
Number — The value of the interpolated property at the specified time.

See also

fl.motion.FunctionEase
easeOut()method 
public static function easeOut(t:Number, b:Number, c:Number, d:Number, s:Number = 0):Number

The easeOut() method starts the motion by moving towards the target, overshooting it slightly, and then reversing direction back toward the target.

Parameters
t:Number — Specifies the current time, between 0 and duration inclusive.
 
b:Number — Specifies the initial value of the animation property.
 
c:Number — Specifies the total change in the animation property.
 
d:Number — Specifies the duration of the motion.
 
s:Number (default = 0) — Specifies the amount of overshoot, where the higher the value, the greater the overshoot.

Returns
Number — The value of the interpolated property at the specified time.

See also

fl.motion.FunctionEase