maxR = 100;

​

function setup() {

  createCanvas(600, 600);

  makeDots(800);

}

​

function draw() {

  background(220);

  for (var i = 0; i < dots.length; i++){

    strokeWeight(5);

    point(dots[i].x, dots[i].y);

  }

  strokeWeight(1);

  noFill();

}

​

function makeDots(n){

//   choose random radius and angle from the center

  for (var i = 0; i < n; i++){

    a = random(0, 2*PI);

    // https://programming.guide/random-point-within-circle.html

    // we use square root of random for equal distribution of points        from the center

    r = 20 * sqrt(random(0, maxR));

    x = width/2 + r * cos(a);

    y = height / 2 + r * sin(a);

    var newDot = createVector(x, y);

    dots.push(newDot);

  }

​

}