Torus
This activity belongs to the GeoGebra Road Runner (beep, beep) book.
In this construction, you can see an example with surfaces. The
button allows you to choose from some predefined paths:

- The smaller circle (t, 0)
- The larger circle (0, t)
- The composition of both (t, t)
- Solenoid (5t, t)
- Trefoil knot (t, sen(t))
Author of the construction of GeoGebra: Rafael Losada