Easing Functions
| Controllers | Animation Framework |
In this document
Easing functions provides animation smoothing. Instead of linearly changing the value of the property specified in the animation, we can use about 30 functions(like elastic, bounce, sine etc).
How to use
We specify the easing function name by using "alpha_function" or "f" parameter in Animation. For Example
from pymt import *
widget = MTScatterWidget()
anim = Animation(duration=1, rotation=45, f="ease_in_out_back")
widget.do(anim)
runTouchApp(widget)
widget = MTScatterWidget()
anim = Animation(duration=1, rotation=45, f="ease_in_out_back")
widget.do(anim)
runTouchApp(widget)
This example shows how we specified "ease_in_out_back" function to be used.
By default all animations use Linear function in PyMT
Types of Functions
There are around 30 easing functions that we where able to implement in our framework. (Thanks to clutter project: http://www.clutter-project.org/docs/clutter/stable/ClutterAlpha.html)
- linear
- ease_in_quad
- ease_out_quad
- ease_in_out_quad
- ease_in_cubic
- ease_out_cubic
- ease_in_out_cubic
- ease_in_quart
- ease_out_quart
- ease_in_out_quart
- ease_in_quint
- ease_out_quint
- ease_in_out_quint
- ease_in_sine
- ease_out_sine
- ease_in_out_sine
- ease_in_expo
- ease_out_expo
- ease_in_out_expo
- ease_in_circ
- ease_out_circ
- ease_in_out_circ
- ease_in_elastic
- ease_out_elastic
- ease_in_out_elastic
- ease_in_back
- ease_out_back
- ease_in_out_back
- ease_in_bounce
- ease_out_bounce
- ease_in_out_bounce