Top #attractor dweets

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<9;i++)
x.fillRect(400+i*100+S(t)*300,400,50,200) // draw 50x200 rects

} // 122/140

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    u(t) is called 60 times per second.
    t: Elapsed time in seconds.
    S: Shorthand for Math.sin.
    C: Shorthand for Math.cos.
    T: Shorthand for Math.tan.
    R: Function that generates rgba-strings, usage ex.: R(255, 255, 255, 0.5)
    c: A 1920x1080 canvas.
    x: A 2D context for that canvas.

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Current theme challenge: #ScaryMovies

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rodrigo.siqueira

remix of d/12287 by u/rodrigo.siqueira

function u(t) {

c.width+=X=Y=Z=d=.05
for(i=7e3;i--;)
X+=-d*(Y+Z),
Y+=d*(X+.2*Y),
Z+=d*(.2+Z*(X-5)),
x.fillRect(950+X*55,930-Z*55+Y*C(X/9+t)*9,3,5)

Apr 9 2019 1:57 PM UTC

}// 130/140

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Rössler Strange Attractor - system with chaotic dynamics and fractal properties. #attractor #lorenz

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thorbear

function u(t) {

i=2e3,u=v=t,a=b=1.7,c=0.6,d=1.2,s=240,x.globalAlpha=.01;for(;--i;)w=S(a*v)-c*C(a*u),v=S(b*u)+d*C(b*v),u=w,x.fillRect(960+s*u,540+v*s,4,4)

Jan 31 2019 9:20 PM UTC

}// 137/140

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actual Clifford

u/robbyg

#attractor
u/rodrigo.siqueira

Clifford #pickover Attractor

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danny@hille.dk

remix of d/19549 by u/katkip

function u(t) {

for(t||(X=Y=Z=1,T=.001),m=i=34;i--;x.fillStyle=`hsl(${t*m},99%,50%`)X+=T*9*(Y-X),Y+=T*(X*(m-Z)-Y),Z+=T*(X*Y-Z),x.fillRect(X+Z*m,m*Y+540,5,5)

Jul 31 2020 6:10 PM UTC

}// 140/140

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no depth, odd angle, but uncormpressed and with colors

u/danny@hille.dk

#lorenz #attractor

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rodrigo.siqueira

remix of d/13119 by u/rodrigo.siqueira

function u(t) {

c.width+=X=Y=Z=d=.04
for(i=6e3;i--;)X+=-d*(Y+Z),
Y+=d*(X+.2*Y),
Z+=d*(.2+Z*(X-5)),
x.lineTo(980+80*(X*C(t)-Y*S(t)),800-Z*48+Y*19)
x.stroke()

Jan 12 2020 12:43 AM UTC

}// 140/140

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Turning Rössler Strange Attractor, a system of three non-linear ordinary differential equations with chaotic dynamics and fractal properties. Some people see this turning clockwise, some see counterclockwise due to the bistable optical illusion (search "Spinning Dancer" for explanation). #attractor #illusion

u/rodrigo.siqueira

The rotation effect trick X*C(t)-Y*S(t) was "borrowed" by Frank Force KilledByAPixel's #Lorenz Attractor: from https://www.dwitter.net/d/14752

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katkip

remix of d/12348 by u/katkip

function u(t) {

x.fillRect(0,0,2e3,1e3);x.globalAlpha=.1;t||(a=b=5);for(i=599;i--;)a+=S(b+C(a)),b+=C(a+C(b+t*i)),x.clearRect(a*590-1800,b*290-300,i/99,i/99)

Feb 16 2019 7:56 PM UTC

}// 140/140

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Chaotic #attractor in motion but more designed

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katkip

remix of d/12347 by u/katkip

function u(t) {

c.width*=1;t||(a=b=5);for(i=999;i--;)a+=S(b+C(a+i/9999)),b+=C(a+C(b+t*i)),x.fillRect(a*590-1800,b*290-300,9,9)

Feb 14 2019 6:13 PM UTC

}// 110/140

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Chaotic #attractor in motion #math (quarc in string theory)

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rodrigo.siqueira

function u(t) {

Xp=X=Y=t/800
x.globalAlpha=.1
for(i=2e3;i--;){
X=Xp*Xp-Y*Y+.9*Xp-.6013*Y
Y=2*Xp*Y+2*Xp+.5*Y
Xp=X
x.fillRect(1300+X*820,740+Y*400,2,2)
}

Feb 9 2019 3:14 PM UTC

}// 135/140

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Tinkerbell Map is a chaotic #attractor dynamical system, as described in https://en.wikipedia.org/wiki/Tinkerbell_map

u/rodrigo.siqueira

"Origin of the name: the graphical picture shows a similarity to the movement of Tinker Bell over Cinderella Castle, as shown at the beginning of Disney films."
u/katkip

You can replace Xp with p

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rodrigo.siqueira

remix of d/21538 by u/rodrigo.siqueira

function u(t) {

x.fillRect(0,0,2e3,2e3)
V=X=Y=Z=28
for(i=999;i--;x.clearRect(1700+a*99,Z*V-i+99,6,6))Z+=(X*Y-Z)/V,X+=Y/9-X/5,Y+=X*(V-Z+S(t/6))/92,a=C(X+t)+Y

Feb 10 2021 1:29 PM UTC

}// 140/140

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Rotating #lorenz tornado #attractor

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anotherkitten

remix of d/20214 by u/rodrigo.siqueira

function u(t) {

c.width+=X=Y=Z=f=.008
for(i=7e3;i--;x.lineTo(980+800*X*C(t)+Y*S(t)*300,300-Z*4e3))
X+=Y*Z,Y+=X-Z/6,Z+=(f-X*Y+f*Z*X)/15
x.stroke()

Oct 7 2020 5:39 PM UTC

}// 129/140

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three pronged attractor

u/anotherkitten

#attractor

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rodrigo.siqueira

remix of d/12319 by u/rodrigo.siqueira

function u(t) {

c.width|=X=Y=Z=1
for(i=3e3;i--;x.fillRect(500*(t%6.2-i%3-X*C(t*9)/33),800-i%3*90-(1.3+S(t))*Z*6,5,5))Z+=(X*Y-Z)/39,X+=(Y-X)/9,Y+=X*(27-Z)/97

Sep 2 2019 2:05 PM UTC

}// 140/140

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Three Lorenz Butterflies #lorenz #attractor #butterfly

dwitter.net | #attractor