a.
ex: sinus
X=f(u) 1+2*sin(u)+cos(2*u)
Y=g(u) cos(u*0.5)
Z=h(u) u/2
0 <= u <= 2*pi
Rotacija oko Y ose
b.
cosinus sinus
X=f(u) cos(u)*2 X=f(v) sin(v)*3
Y=g(u) sin(3+u) Y=g(v) cos(v*2)
Z=2*u+3 Z=h(v) sin(v*2)
0 <= U <= 2*pi 0 <= V <= 2*pi