createCanvas(400, 400);

  // Grid variables

  around = 72;

  outward = 20;

  rad = 150;

  centre = new p5.Vector(width / 2, height / 2)

}

​

function draw() {

  background(220);

  // Loop around the circle

  for (let i = 0; i < around; i++) {

    // Get the angle

    a = map(i,0,around,0,2*PI);

    // Loop outward

    for (let j = 0; j < outward; j++) {

      // Get out distance

      out = j * rad / outward;

      // Calculate position

      pos = new p5.Vector(out,0).rotate(a)

      // Draw circle

      noFill();

      circle(pos.x + centre.x, pos.y + centre.y, 2)

    }

  }

}