parallelEllipse

let a =0.1,b=0.2,k=1;
function setup() {
  createCanvas(600, 600);
  angleMode(DEGREES)
  fill(0,50,70,10);
  strokeWeight(1)
  stroke(255)
  background(0)
}

function draw() {
  translate(width/2,width/2);
  background(0,0,0,10);
  ts = frameCount/4
  n=int(12*sin(frameCount/10)*sin(frameCount/10))+1
  pCurve(0,0,10,n);
  pCurve(width/4,width/4,5,n);
  pCurve(-width/4,-width/4,5,n);
  pCurve(-width/4-width/8,-width/4-width/8,2.5,n);
  pCurve(width/4+width/8,+width/4+width/8,2.5,n);
  
}

function dEll(a,b,k,r){
  beginShape();
  for(let t=0;t<360;t++){
    x=(a+b*k/(sqrt(a*a*sin(t)*sin(t)+b*b*cos(t)*cos(t))))*cos(t);
    y=(b+a*k/(sqrt(a*a*sin(t)*sin(t)+b*b*cos(t)*cos(t))))*sin(t);
    vertex(r*x,r*y);
  }
  endShape(CLOSE);
}

function pCurve(x,y,r,n){
  push()
  translate(x,y)
  rotate(ts/2+ts/30)
  for(let i=0;i<n;i++){
    dEll(a+2*i*cos(ts),b+2*i*sin(ts),k,r)
  }
  pop()
  
}