Circle Color Rings - OpenProcessing

mySketch
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  var freq = 100;
  var amp = 500;
​
function setup() {
  createCanvas(windowWidth, windowHeight);
  background(0);
​
}
​
function draw() {
  //background(0);
  noFill();
  for (var i=0;i<360; i++) {
    // pic
    // ellipse(amp*sin(i*freq)+width/2, amp*cos(i*freq)+height/2, random(100), 5);
    // ellipse(amp*sin(i*freq)+width/2, amp*cos(i*freq)+height/2, random(10), 5);
    // ellipse(amp*sin(i*freq)+width/2, amp*cos(i*freq)+height/2, 10, 5);
    // ellipse(amp*tan(i*freq)+width/2, amp*cos(i*freq)+height/2, 10, 5);
    // ellipse(amp*sin(i*freq)+width/2, amp*tan(i*freq)+height/2, 10, 5);
    // ellipse(amp*cos(i*freq)+width/2 * sin(i*freq)+width/2, amp*cos(i*freq)+height/2, 10, 5);
    
    var four_d = floor(random(4)) + 1;
    if (four_d == 1) {
      ellipse(amp*sin(i*freq)+width/2, amp*tan(i*freq)+height/2, 10, 5);
    } else if (four_d == 2) {
      ellipse(amp*sin(i*freq)+width/2, amp*cos(i*freq)+height/2, random(10), 5);
    } else if (four_d == 3) {
      ellipse(amp*sin(i*freq)+width/2, amp*cos(i*freq)+height/2, random(10), 5);
    } else if (four_d == 4) {
      ellipse(amp*tan(i*freq)+width/2, amp*cos(i*freq)+height/2, 10, 5);
    }
    
    //line(width/2,height/2,amp*sin(i*freq), amp*cos(i*freq));
  }
  freq +=.005;
  //amp = random(500)*sin(freq);
  amp = random(10)+500*sin(freq);
  if (amp > 0) {  
    stroke(floor(random(255)),floor(random(255)),floor(random(255)));
  } else if (amp < 0) {
    stroke(0);
  }
  
}