// a simple circle drawn by rotating dots around a constant radius

stroke(0,60);
noFill();
// ellipse(width/2, height/2, radius*2, radius *2);

float x, y;
float lastX = -999;
float lastY = -999;

  size(500,500);
  background(255);
  strokeWeight(3);
  float radius = 100;
  smooth();

  for (float ang = 0; ang <=360 ; ang += 5) {
  float rad = radians(ang); // this converts degrees into radians
  x = width/2 + (radius * cos(rad));
  y = height/2 + (radius * sin(rad));
  point(x,y);
}