x= 20*sin(u)*cos(9*u)
y= 4*u
z= u
4<=u<=8*pi
rotacija oko y ose
X=sin(u)*cos(3*u)+u
Y=cos(2*u)
Z=2
0<=U<=pi
X=cos(v)*sin(3*v)+v
Y=sin(2*v)+v
Z=3*v
