YUI recommends YUI 3.

YUI 2 has been deprecated since 2011. This site acts as an archive for files and documentation.

Yahoo! UI Library

animation  2.5.0

Yahoo! UI Library > animation > YAHOO.util.Easing

Show Private Show Protected

Class YAHOO.util.Easing

Singleton that determines how an animation proceeds from start to end.

Methods

backBoth

Number backBoth ( t , b , c , d , s )
Backtracks slightly, then reverses direction, overshoots end, then reverses and comes back to end.
Parameters:
t <Number> Time value used to compute current value
b <Number> Starting value
c <Number> Delta between start and end values
d <Number> Total length of animation
s <Number> Overshoot (optional)
Returns: Number
The computed value for the current animation frame

backIn

Number backIn ( t , b , c , d , s )
Backtracks slightly, then reverses direction and moves to end.
Parameters:
t <Number> Time value used to compute current value
b <Number> Starting value
c <Number> Delta between start and end values
d <Number> Total length of animation
s <Number> Overshoot (optional)
Returns: Number
The computed value for the current animation frame

backOut

Number backOut ( t , b , c , d , s )
Overshoots end, then reverses and comes back to end.
Parameters:
t <Number> Time value used to compute current value
b <Number> Starting value
c <Number> Delta between start and end values
d <Number> Total length of animation
s <Number> Overshoot (optional)
Returns: Number
The computed value for the current animation frame

bounceBoth

Number bounceBoth ( t , b , c , d )
Bounces off start and end.
Parameters:
t <Number> Time value used to compute current value
b <Number> Starting value
c <Number> Delta between start and end values
d <Number> Total length of animation
Returns: Number
The computed value for the current animation frame

bounceIn

Number bounceIn ( t , b , c , d )
Bounce off of start.
Parameters:
t <Number> Time value used to compute current value
b <Number> Starting value
c <Number> Delta between start and end values
d <Number> Total length of animation
Returns: Number
The computed value for the current animation frame

bounceOut

Number bounceOut ( t , b , c , d )
Bounces off end.
Parameters:
t <Number> Time value used to compute current value
b <Number> Starting value
c <Number> Delta between start and end values
d <Number> Total length of animation
Returns: Number
The computed value for the current animation frame

easeBoth

Number easeBoth ( t , b , c , d )
Begins slowly and decelerates towards end. (quadratic)
Parameters:
t <Number> Time value used to compute current value
b <Number> Starting value
c <Number> Delta between start and end values
d <Number> Total length of animation
Returns: Number
The computed value for the current animation frame

easeBothStrong

Number easeBothStrong ( t , b , c , d )
Begins slowly and decelerates towards end. (quartic)
Parameters:
t <Number> Time value used to compute current value
b <Number> Starting value
c <Number> Delta between start and end values
d <Number> Total length of animation
Returns: Number
The computed value for the current animation frame

easeIn

Number easeIn ( t , b , c , d )
Begins slowly and accelerates towards end. (quadratic)
Parameters:
t <Number> Time value used to compute current value
b <Number> Starting value
c <Number> Delta between start and end values
d <Number> Total length of animation
Returns: Number
The computed value for the current animation frame

easeInStrong

Number easeInStrong ( t , b , c , d )
Begins slowly and accelerates towards end. (quartic)
Parameters:
t <Number> Time value used to compute current value
b <Number> Starting value
c <Number> Delta between start and end values
d <Number> Total length of animation
Returns: Number
The computed value for the current animation frame

easeNone

Number easeNone ( t , b , c , d )
Uniform speed between points.
Parameters:
t <Number> Time value used to compute current value
b <Number> Starting value
c <Number> Delta between start and end values
d <Number> Total length of animation
Returns: Number
The computed value for the current animation frame

easeOut

Number easeOut ( t , b , c , d )
Begins quickly and decelerates towards end. (quadratic)
Parameters:
t <Number> Time value used to compute current value
b <Number> Starting value
c <Number> Delta between start and end values
d <Number> Total length of animation
Returns: Number
The computed value for the current animation frame

easeOutStrong

Number easeOutStrong ( t , b , c , d )
Begins quickly and decelerates towards end. (quartic)
Parameters:
t <Number> Time value used to compute current value
b <Number> Starting value
c <Number> Delta between start and end values
d <Number> Total length of animation
Returns: Number
The computed value for the current animation frame

elasticBoth

Number elasticBoth ( t , b , c , d , a , p )
Snap both elastic effect.
Parameters:
t <Number> Time value used to compute current value
b <Number> Starting value
c <Number> Delta between start and end values
d <Number> Total length of animation
a <Number> Amplitude (optional)
p <Number> Period (optional)
Returns: Number
The computed value for the current animation frame

elasticIn

Number elasticIn ( t , b , c , d , a , p )
Snap in elastic effect.
Parameters:
t <Number> Time value used to compute current value
b <Number> Starting value
c <Number> Delta between start and end values
d <Number> Total length of animation
a <Number> Amplitude (optional)
p <Number> Period (optional)
Returns: Number
The computed value for the current animation frame

elasticOut

Number elasticOut ( t , b , c , d , a , p )
Snap out elastic effect.
Parameters:
t <Number> Time value used to compute current value
b <Number> Starting value
c <Number> Delta between start and end values
d <Number> Total length of animation
a <Number> Amplitude (optional)
p <Number> Period (optional)
Returns: Number
The computed value for the current animation frame


Copyright © 2007 Yahoo! Inc. All rights reserved.