Directly accessing /using ease functions

[DAVD]

Is there a way to directly use the penner easing functions (and other) included in GSAP?

 

I run my own update loop (on Scroll) and just want to pass my values through the easing functions to make everything a tiny bit more awesome.

 

Example of what I would like to do. passing in p (value of 0 to 1) start value 0, change value 1, and duration 1.

Power2.easeInOut(p,0,1,1);

right now I define the functions again in my code like this:

 

var easeInSine = function (t, b, c, d) {
return -c * Math.cos(t/d * (Math.PI/2)) + c + b;
}
easeInSine(p,0,1,1);

would be great to hook into the greatness of Greensock instead of defining them again.

 

I'm using the latest js and tweenmax.

[OSUblake]

Like this...

var progress = 0.5;
var value = Power2.easeInOut.getRatio(progress);

[GreenSock]

Yep, Blake is exactly right. If you're trying to use it kinda like the Penner ones, here's a long-winded way that shows how it'd work:

var start = 0;
var end = 200;
var time = 1.5;
var duration = 3;

var calculatedValue = start + Power2.easeInOut.getRatio(time / duration) * (end - start);

[adamh]

Is there an equivalent method in GSAP 3 to call eases directly like this?

 

 

[adamh]

FYI  yes! see here: