A: (2, 1, 1)
B: (1, 3, 1)
f = Line(A, B)
a = Plane((2, 2, 0), (3, 2, 1), (1, 3, 1))
C = Intersect(f, a)
CentrumKugle: (2, 2, 1)
b = Sphere(CentrumKugle, 1)
D, E = Intersect(f, b)
c = IntersectPath(a, b)