cubicbezier/build/cubicbezier.js

function to generate cubicbezier lines.

!function(a,b){function c(a,b,c,d){function e(a){return(3*k*a+2*l)*a+m}function f(a){return((k*a+l)*a+m)*a}function g(a){return((n*a+o)*a+p)*a}function h(a){for(var b,c,d=a,g=0;8>g;g++){if(c=f(d)-a,Math.abs(c)<j)return d;if(b=e(d),Math.abs(b)<j)break;d-=c/b}var h=1,i=0;for(d=a;h>i;){if(c=f(d)-a,Math.abs(c)<j)return d;c>0?h=d:i=d,d=(h+i)/2}return d}function i(a){return g(h(a))}var j=1e-6,k=3*a-3*c+1,l=3*c-6*a,m=3*a,n=3*b-3*d+1,o=3*d-6*b,p=3*b;return i}b.cubicbezier=c,b.cubicbezier.linear=c(0,0,1,1),b.cubicbezier.ease=c(.25,.1,.25,1),b.cubicbezier.easeIn=c(.42,0,1,1),b.cubicbezier.easeOut=c(0,0,.58,1),b.cubicbezier.easeInOut=c(.42,0,.58,1)}(window,window.lib||(window.lib={}));