How to generate this kind of random curves?

Question

Is it possible to generate this kind of random curves?

I\'ve tried IMagick

Answer 1

Looks like:

x = 0; y = 0; angel = 0;
while (true) {
   angel = angel + 0.5 - random(1);
   x1 = x + 0.1 * cos(angel);
   y1 = y + 0.1 * sin(angel);
   if (abs(x1 - x) + abs(y1 - y) < 10)
     drawline(x,y,x1,y1);
   x = x1; y = y1;

   if (x < 0) x = width;
   if (y < 0) y = height;
   if (x > width) x = 0;
   if (y > height) y = 0;
}