stretch<br>

// sin, cos, width, height, line, strokeCap, strokeWeight, TWO_PI

// no interaction

​

float move;

​

void setup() {

  size(500, 500);

  strokeCap(SQUARE);

}

​

void draw() {

  background(255);

  move += .002;

  noStroke();

  fill(0);

  ellipse(width/2, height/2, 350, 350);

  fill(255);

  ellipse(width/2+18, height/2, 300, 300);

  stroke(255);

  strokeWeight(6);

  for (float i = move; i < TWO_PI+ move; i += TWO_PI/20) {

    float x = (-width) + cos(i) * (width + width);

    float y = height + sin(i) * (height+ height);

    line(width/2, height/2, x, y);

  }

  stroke(0);

  strokeWeight(20);

  line(0, height/2, 68, height/2);

  line(125, height/2, 413, height/2);

  line(428, height/2, width, height/2);

}

​