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/* | |
* cat curve | |
*/ | |
var n = 60, | |
cos = Math.cos, | |
sin = Math.sin, | |
floor = Math.floor, | |
PI = Math.PI, | |
cat = function cat(t) { | |
var x = - (721 * sin(t)/4) | |
+ (196/3) * sin(2*t) | |
-(86/3) * sin(3*t) | |
-(131/2) * sin(4*t) | |
+(477/14) * sin(5*t) | |
+ 27 * sin(6*t) | |
-(29/2) * sin(7*t) | |
+(68/5) * sin(8*t) | |
+(1/10) * sin(9*t) | |
+(23/4) * sin(10*t) | |
-(19/2) * sin(12*t) | |
-(85/21) * sin(13*t) | |
+(2/3) * sin(14*t) | |
+(27/5) * sin(15*t) | |
+(7/4) * sin(16*t) | |
+(17/9) * sin(17*t) | |
-4 * sin(18*t) | |
-(1/2) * sin(19*t) | |
+(1/6) * sin(20*t) | |
+(6/7) * sin(21*t) | |
-(1/8) * sin(22*t) | |
+(1/3) * sin(23*t) | |
+(3/2) * sin(24*t) | |
+(13/5) * sin(25*t) | |
+ sin(26*t) | |
-2 * sin(27*t) | |
+(3/5) * sin(28*t) | |
-(1/5) * sin(29*t) | |
+(1/5) * sin(30*t) | |
+(2337 * cos(t)/8) | |
-(43/5) * cos(2*t) | |
+(322/5) * cos(3*t) | |
-(117/5) * cos(4*t) | |
-(26/5) * cos(5*t) | |
-(23/3) * cos(6*t) | |
+(143/4) * cos(7*t) | |
-(11/4) * cos(8*t) | |
-(31/3) * cos(9*t) | |
-(13/4) * cos(10*t) | |
-(9/2) * cos(11*t) | |
+(41/20) * cos(12*t) | |
+8 * cos(13*t) | |
+(2/3) * cos(14*t) | |
+6 * cos(15*t) | |
+(17/4) * cos(16*t) | |
-(3/2) * cos(17*t) | |
-(29/10) * cos(18*t) | |
+(11/6) * cos(19*t) | |
+(12/5) * cos(20*t) | |
+(3/2) * cos(21*t) | |
+(11/12)* cos(22*t) | |
-(4/5) * cos(23*t) | |
+ cos(24*t) | |
+(17/8) * cos(25*t) | |
-(7/2) * cos(26*t) | |
-(5/6) * cos(27*t) | |
-(11/10) * cos(28*t) | |
+(1/2)* cos(29*t) | |
-(1/5) * cos(30*t), | |
y = - (637 * sin(t)/2) | |
-(188/5) * sin(2*t) | |
-(11/7) * sin(3*t) | |
-(12/5) * sin(4*t) | |
+(11/3) * sin(5*t) | |
-(37/4) *sin(6*t) | |
+(8/3) * sin(7*t) | |
+(65/6) * sin(8*t) | |
-(32/5) * sin(9*t) | |
-(41/4) * sin(10*t) | |
-(38/3) * sin(11*t) | |
-(47/8) *sin(12*t) | |
+(5/4) * sin(13*t) | |
-(41/7) * sin(14*t) | |
-(7/3) * sin(15*t) | |
-(13/7) * sin(16*t) | |
+(17/4) * sin(17*t) | |
-(9/4) *sin(18*t) | |
+(8/9) * sin(19*t) | |
+(3/5) * sin(20*t) | |
-(2/5) * sin(21*t) | |
+(4/3) * sin(22*t) | |
+(1/3) * sin(23*t) | |
+(3/5) * sin(24*t) | |
-(3/5) * sin(25*t) | |
+(6/5) * sin(26*t) | |
-(1/5) * sin(27*t) | |
+(10/9) * sin(28*t) | |
+(1/3) * sin(29*t) | |
-(3/4) * sin(30*t) | |
-(125 * cos (t)/2) | |
-(521/9) * cos(2*t) | |
-(359/3) * cos(3*t) | |
+(47/3) * cos(4*t) | |
-(33/2) * cos(5*t) | |
-(5/4) * cos(6*t) | |
+(31/8)* cos(7*t) | |
+(9/10) * cos(8*t) | |
-(119/4) * cos(9*t) | |
-(17/2) * cos(10*t) | |
+(22/3) * cos(11*t) | |
+(15/4) * cos(12*t) | |
-(5/2)* cos(13*t) | |
+(19/6) * cos(14*t) | |
+(7/4) * cos(15*t) | |
+(31/4) * cos(16*t) | |
- cos(17*t) | |
+(11/10) * cos(18*t) | |
-(2/3) * cos(19*t) | |
+(13/3) * cos(20*t) | |
-(5/4) * cos(21*t) | |
+(2/3) * cos(22*t) | |
+(1/4) * cos(23*t) | |
+(5/6) * cos(24*t) | |
+(3/4) * cos(26*t) | |
-(1/2) * cos(27*t) | |
-(1/10) * cos(28*t) | |
-(1/3) * cos(29*t) | |
-(1/19) * cos(30*t); | |
return [ | |
floor(x/4), -floor(y/4) | |
]; | |
}, | |
pointConfig = { | |
backgroundColor: | |
'rgba(10,10,10,0.5)', | |
width:'10px', | |
height:'10px', | |
borderRadius:'10px', | |
top: | |
'-webkit-calc(50% - 10px)', | |
top: | |
'calc(50% - 10px)', | |
left: | |
'-webkit-calc(50% - 10px)', | |
left: | |
'calc(50% - 10px)', | |
boxShadow: | |
'0px 1px 1px rgba(0,0,0,0.1)', | |
display:'block', | |
opacity:1 | |
}, | |
points = [ ], | |
cir = function (t) { | |
return [ | |
floor(100*cos(t)), | |
- floor(100*sin(t)) | |
]; | |
}, | |
animate = function (el, w, z) { | |
return Zanimo(el, | |
'transform', | |
'translate3d(' | |
+ w + 'px,' | |
+ z + 'px,0px)', | |
1000, | |
'cubic-bezier(.03,.36,.27,1.28)' | |
); | |
}, | |
apply = function(f,pts,min,max){ | |
return Q.all(pts.map( | |
function (point, idx) { | |
var l = points.length, | |
pos = f( | |
(idx+1)*(max-min)/l | |
); | |
return animate( | |
point, pos[0], pos[1] | |
); | |
})); | |
}, | |
applyf = function(f,pts,min,max){ | |
return function () { | |
return apply( | |
f, | |
pts, | |
min, | |
max | |
); | |
}; | |
}; | |
for(var i=0; i<n; i++) { | |
points.push(pointConfig); | |
} | |
points = create(points); | |
return apply(cir, points, 0,2*PI) | |
.then(applyf(cat, points, 0,2*PI)) | |
.then(applyf(cir, points, 0,2*PI)) | |
.then(applyf(cat, points, 0,2*PI)) | |
.delay(2000); |
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