New #D3 dweets | Dwitter

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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f8f82804

remix of d/11689 by u/f8f82804

function u(t) {

for(i=c.width^=0;i--;x.fillRect(X/d+960,Y/d/.9-1150,s=47-d*2e4,s))a=S(ϕ=i/612),θ=i*37+C(i/99+t),d=Math.hypot(X=S(θ)*a,Y=C(ϕ)+3,C(θ)*a+5)/3e3

Jan 11 2019 8:11 PM UTC

}// 140/140

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#waves on a #perspectives #sphere -- #d3 #pointcloud

u/f8f82804

this dweet uses a better perspective transform based on Math.hypot -- #hypot
u/f8f82804

The projection still isn't perfect, because I'm rotating the sphere's axis towards the viewer by positioning it below the camera. The resulting distortion is approximately corrected by scaling the Y coordinate with /.9.
u/f8f82804

#perspective

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rnbw

function u(t) {

c.width^=0
x.fillStyle='#3ad3'
for(i=-1;i++<8;)x.fill(x.arc(960+S(t+i*.9)*500*(j=Math.min(i,1)),j*400+C(t+i*.9)*129*j+300,0,0,0))

Jan 7 2019 4:48 PM UTC

}// 129/140

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my first dweet of 2019 :D

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u/rnbw

(in which i learned heptagons are surprisingly efficient - tau/7 can be rounded and shortened to 2 characters!)
u/DataMeta

Very nice!
u/lionleaf

#diamond -looking
u/lionleaf

Clean and nice #gem
u/joeytwiddle

Nice! #model is how I tag 3d objects/shapes
u/f8f82804

#d3

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katkip

remix of d/11584 by u/katkip

function u(t) {

eval(unescape(escape`挮睩摴桞㴰㭦㴨愬戬挩㴾筩昨挾㌩砮晩汬剥捴⡡ⱢⱣⱣ⤬昨愭挪䌨琩Ɫⵣ⩓⡴⤬振㈬振㈩ⱦ⡡⭣⼲⩃⡴⤬戫挪匨琩Ᵽ⼲Ᵽ⼲⤬昨愭振㈪匨琩Ɫⵣ⼲⩃⡴⤬振㈬振㈩ⱦ⡡⭣Ɫⵣ⼲Ᵽ⼲Ᵽ⼲⥽㭦⠸㐰ⰵ㤰ⰲ㔰⤻`.replace(/u(..)/g,"$1%")))

Dec 30 2018 9:57 AM UTC

}// 138/140

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I love #recursion , #recursive #sierpinski #d3 c.width^=0;f=(a,b,c)=>{if(c>3)x.fillRect(a,b,c,c),f(a-c*C(t),b-c*S(t),c/2,c/2),f(a+c/2*C(t),b+c*S(t),c/2,c/2),f(a-c/2*S(t),b-c/2*C(t),c/2,c/2),f(a+c,b-c/2,c/2,c/2)};f(840,590,250)

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katkip

function u(t) {

x.fillRect(0,0,2e3,2e3);for(j=800;j--;)
x.clearRect(960+S(j+C(t+j))*300,540+C(-j+S(t+j))*300,10+S(-Math.LN10+j+t)*5,10+S(Math.E*2+j+t)*5)

Dec 22 2018 2:56 PM UTC

}// 137/140

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3D string creates right angles! #d3 #math

u/magna

Right...

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pavel

function u(t) {

for(w=i=c.width|=h=Math.PI/2;i--;x.fillRect(w/2+r*C(i+t),(i<w/3?w/3:i)/2+r/2*S(i+t)*S(t),4,10))r=(i<w/2?i:w-i)/2/C(i%h-h/4-(i%h>h/2)*h/2)

Dec 19 2018 10:57 PM UTC

}// 137/140

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Diamond

u/joeytwiddle

#model
u/f8f82804

#d3

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pavel

remix of d/11420 by u/cantelope

function u(t) {

j=t?j%6e3:P=[]
for(w=i=150;i--;c.width=-1)P[j++]=[40,8+S(i/4)*C(t*16)*3]
P.map((p,i)=>x.fillRect(w+(i%w-75)*(g=w/p[0]--),p[1]*g,s=g*g/23,s))

Dec 15 2018 7:17 AM UTC

}// 140/140

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u/katkip

#d3 #landscape Nice!!
u/pavel

#uncompressed

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keithclark

function u(t) {

for(x.fillRect(0,0,j=2e3,j);j--;x.clearRect(C(j)*r+960,S(j*j)*r+540,2/Z,2/Z))r=600/(Z=1+(T(j*.61)-t/3)%1)

Dec 6 2018 5:33 PM UTC

}// 105/140

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u/katkip

#starfield #stars #d3

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pavel

remix of d/11280 by u/pavel

function u(t) {

for(c.width|=i=36;j=60*(--i>>2);x.fillRect(-j,0,2*j,u>0||9))x.setTransform(u=C(a=(i/2+t/8)*Math.PI),v=S(a),0,4,960+j*v,256+j/2-j*u)

Dec 5 2018 4:20 AM UTC

}// 131/140

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#pyramid v2

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lucio

remix of d/5600 by u/p01

function u(t) {

for(i=I=416,c.width=180;a=t+i/I*6.28,i--;)C(a)<0&&x.fillText("░▉"["㉌ሒ縒䈀䩊䩊~ȂɾȂɾ~⁾တ縠㰀䉂䉂~".charCodeAt(i/16)>>i%16&1],85+S(a)*75,9+i%8*13)

Dec 4 2018 1:59 AM UTC

}// 136/140

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Spread the word around

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u/magna

Figuratively and literally.
u/lucio

:-)
u/lucio

For anyone interested, here's a tutorial explaining how it was made: https://luciopaiva.com/dweets/pt3/
u/katkip

coool
u/katkip

#d3
u/donbright

holy cow
u/iverjo

#makingof

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katkip

function u(t) {

c.style.background='#000';x.shadowColor='lime';for(i=0;i<99;i++)x.fillRect(S(i+t/5)*i*100,400+T(i*10+t)*400,50,50),x.shadowBlur=T(t/99+i)*30

Dec 1 2018 12:48 PM UTC

}// 140/140

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Matrix Wires #d3

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