Top #spirograph 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: #Opposites

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rodrigo.siqueira

remix of d/20662 by u/rodrigo.siqueira

function u(t) {

x.beginPath()
r=(i)=>S(t*6+i/2.7-3.6)*150+i
x.moveTo(960+C(t)*480,540+S(t)*480)
x.lineTo(r(960),r(540))
x.lineWidth=.7
t<6.28&&x.stroke()

Nov 18 2020 4:10 PM UTC

}// 137/140

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Fairy Star (Heptagram) #spirograph

u/danny@hille.dk

very aesthetically pleasing

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KilledByAPixel

remix of d/14859 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`𬠽𫠽🡓𚁱𚠪𫠩𚠹𯀰𞱦𫱲𚁩🐱𞐰𞱱🐨𭀯𞐫𞑼𜀩𚡩𛐭𞱘👩𙐱𞐪𞐹𚰶𝠬𦐽𚁩𛰱𞑼𜀩𚠹𞐫𞐲𛀨𪐭𭀪𞑼𜀩𙐱𞐰🱸𛡦𪑬𫁒𩑣𭀨𦀫𩠨𤰩𛁙𚱦𚁃𚐬𮠽𜠫𬠨𝠩𛰹𛁺𚐺𮀮𨱬𩑡𬡒𩑣𭀨𦀭𝐰𛁙𛐵𜀬𞐹𛀹𞐩𚐊𩠽𡠽🠳𚡲𚀴𚐪𡠨𬠨𜰩𚡴𚐫𜰪𥀨𝐩𚡆𚁲𚀲𚐪𭀩`.replace(/u../g,'')))

Jul 2 2019 12:29 AM UTC

}// 140/140

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Random Spirograph Doodle Generator

u/KilledByAPixel

#spirograph #multidweet #fullscreen
u/KilledByAPixel

The T(5) in the code should be r(5), still looks ok though. ;)
u/Xen

love it
u/KilledByAPixel

Try watching this one for a bit in fullscreen mode, the variety is amazing.

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KilledByAPixel

remix of d/14765 by u/KilledByAPixel

function u(t) {

c.width|=0;p=Math.PI*2;with(x)for(j=50;j--;stroke())for(beginPath(i=51);i--;arc(j%10*w+150,w+(j/10|0)*w,w/2.1,q=i*p/50,(q*j+t)%p))w=180

Jun 27 2019 11:05 PM UTC

}// 135/140

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50 Times Table Visualization (5*10)

u/KilledByAPixel

This is the full series for 50, after this it repeats.
u/donbright

heehee
u/joeytwiddle

#spirograph

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pavel

remix of d/14846 by u/KilledByAPixel

function u(t) {

r=_=>Math.random();(frame-1)%600?0:d=r(m=r(c.width=960))
f=g=>260*((1-m)*g(a=8*t)+d*m*g(a-a/m))
x.lineTo(480+f(C),270+f(S));x.stroke()

Jul 1 2019 7:54 AM UTC

}// 134/140

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#spirograph generator

u/pavel

I believe this generates all valid spirographs, at least the circle with a small pencil hole rolling in a circle ones.
u/pavel

The incremental drawing is not parameter aware so at the extremes its too slow / too fast and choppy
u/pavel

I was gonna improve this by using the period of a spirograph but gave up deriving it.
u/pavel

I think the period is the denominator of 1-1/m expressed as an irreducible fraction.

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katkip

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪀪🐱𞱴𯁼𚁱🐰𚐻𩠽𚁡𛁢𛁣𛁤𚐽🡻𨐫👃𚁣𚐪𩀬𨠫👓𚁣𚐪𩀬𞐬𞐻𩀾𜐿𩠨𨐬𨠬𨐪𨠪𨰯𜑥𞐫𨰪𜠬𩀯𜠩𞡸𛡦𪑬𫁒𩑣𭀨𨐬𨠬𜰬𜰩𯐻𩡯𬠨𪐽𝀹𞐹𞱩𛐭𞰩𩠨𞐶𜀬𝐴𜀬𬐬𜠵𜀩𛁱𚰽𛠰𜀴`.replace(/uD./g,'')))

Jun 15 2019 12:46 PM UTC

}// 117/140

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Chaotic movement spirograph fractal #fractal #spirograph #chaos

u/magna

Awesome!
u/joeytwiddle

Pretty cool. Has an alien #organic feel to it.

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katkip

function u(t) {

eval(unescape(escape`瑼簨焽孝Ɒ㴰⤻昽⡘ⱙⱳⱺ⤽㹻楦⡳㸲⥻牥瑵牮⁦⡘⭓⡺⨲⤪猪㈬夫䌨稪㐩⩳ⱳ⼲ⱺ⨳⥽敬獥筲整畲湛堬奝絽㭦潲⡩㴹㤹㭩ⴭ㬩焽昨㤶〬㔴〬㈵〬瀫㴵⤬砮晩汬剥捴⡱嬰崬煛ㅝⰳⰳ⤻`.replace(/u(..)/g,"$1%")))

May 24 2019 2:14 PM UTC

}// 128/140

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#fractal #tree #spirograph

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rodrigo.siqueira

remix of d/13569 by u/rodrigo.siqueira

function u(t) {

x.globalAlpha=.2;x.beginPath()
if(t<31.41)for(i=9,j=.1,X=960,k=Y=580;k/=1.9,i--;j*=-2)
X+=S(f=2*t*j)*k,Y-=C(f)*k,x.lineTo(X,99+Y);x.stroke()

May 1 2019 10:53 PM UTC

}// 140/140

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Tricircle #epicycles #fractal #spirograph

u/DataMeta

Very neat!
u/pavel

beginPath does not have any arguments so you can golf like x.beginPath(x.globalAlpha=.2)
u/13thptr

smooth

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KilledByAPixel

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚑦𬡡𫑥𙐲𝀰𛐱🰨𬠽𫠽🡃𚁱𚠪𫠩𚠹𯀰𛁦👆🐾𝀪𬠨𝠩𚡆𚁲𚀵𚐪𭀪𜠩𚰴𚡲𚀴𚐪𡠨𬠨𜰩𚡴𚠲𚐬𫁩𫡥𥱩𩁴𪀽𬠨𝰩𚰲𞐬𫁩𫡥𥁯𚀹𝠰𚱦𚁓𚐪𝰬𝐴𜀫𩠨𠰩𚠷𚐬𬱴𬡯𪱥𚀩𚐺𨡥𩱩𫡐𨑴𪀨𩡩𫁬𤱴𮑬𩐽𘠣𡡆𡠷𘠬𩡩𫁬𤡥𨱴𚀰𛀰𛀲𩐳𛀲𩐳𚐬𬐽𭀪𞐩`.replace(/u../g,'')))

Jun 30 2019 3:31 PM UTC

}// 140/140

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Random #Spirograph Generator

u/KilledByAPixel

Just give it a few seconds to get going...
u/Xen

nice
u/durian-favored-monster

how do these escape char ones work? is it decoding something? perhaps it is converting every unicode char into two ascii chars?
u/KilledByAPixel

You can replace eval with throw to get the code. Compressed with d/14282

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katkip

function u(t) {

eval(unescape(escape`瑼簨焽孝Ɒ㴰⤻昽⡘ⱙⱳⱺ⤽㹻楦⡳㸲⥻牥瑵牮⁦⡘⭓⡺⼲⤪猪㈬夫䌨稪㌩⩳ⱳ⼲ⱺ⨴⥽敬獥筲整畲湛堬奝絽㭦潲⡩㴹㤹㭩ⴭ㬩焽昨㤶〬㔴〬㈵〬瀫㴱⤬砮晩汬剥捴⡱嬰崬煛ㅝⰲⰲ⤻`.replace(/u(..)/g,"$1%")))

May 24 2019 2:17 PM UTC

}// 128/140

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This looks like a #fractal x-wing ship #spirograph

u/rodrigo.siqueira

Same result, uncompressed, 128 bytes: t||(p=0) f=(X,Y,s,z)=>s>2?f(X+S(z/2)*s*2,Y+C(z*3)*s,s/2,z*4):[X,Y] for(i=999;i--;)q=f(960,540,250,p++),x.fillRect(q[0],q[1],2,2)
u/rodrigo.siqueira

My previous comment is not working because of "enter" converted to "space".
u/rodrigo.siqueira

Same result, uncompressed, 128 bytes (correct code): t||(p=0);f=(X,Y,s,z)=>s>2?f(X+S(z/2)*s*2,Y+C(z*3)*s,s/2,z*4):[X,Y];for(i=999;i--;)q=f(960,540,250,p++),x.fillRect(q[0],q[1],2,2)

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rodrigo.siqueira

remix of d/13592 by u/rodrigo.siqueira

function u(t) {

x.beginPath(x.globalAlpha=.14)
if(t<188.49)for(i=9,j=.1,X=960,k=Y=580;k/=2,i--;j*=-4)X+=S(f=t*(j+.5)/3)*k,Y-=C(f)*k,x.lineTo(X,Y);x.stroke()

May 2 2019 1:33 PM UTC

}// 140/140

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Super folded pentagon #epicycles #fractal #spirograph - slow but high quality

dwitter.net | #spirograph