Simple Pole

let t=0
function setup() {
	theSizeThatFits = min(windowWidth, windowHeight)*0.9
	theCanvasThatIsFilled=createCanvas(theSizeThatFits, theSizeThatFits);
	background(20,70,80);
	noFill();
	strokeWeight(0.5);

	describe("slow rotating row of tangent curves that slowly make concentric, sketch-like teal circles")
}

function draw() {
  t+=0.005
  translate(width/2,height/2)
  rotate(t)
	for(let i = -width/2;i<width/2;i+=random(0.01,0.02)){
	push()
    stroke(100+40*cos(i/500+t),180+40*cos(i/500+t),210+40*cos(i/500+t),50)
    let x = i*PI
    let y = 10*cos(x)/sin(x)
    
    circle(5*x,y,1)
		pop()
	}
}

function keyPressed(){
	if(keyCode===83){
		save(theCanvasThatIsFilled,"Perimeter of Ellipse","png")
	}
}