mur: x = 0
sol: z = 0
S: (5, -2, 11)
A = (-7.095154939640594, 6.339901236718344, 15)
l = IntersectPath(xOyPlane, mur)
SS1 = OrthogonalLine(S, xOyPlane)
S_1 = Intersect(SS1, xOyPlane)
D = PointIn(mur)
d = Line(D, A)
P = Point(d)
SP = Segment(S, P)
P' = Intersect(SP, mur)
dtilde = Line(S, d)
F_d = Intersect(dtilde, mur)
d' = Segment(F_d, D)
E = PointIn(mur)
e = Line(E, d)
E_P = Point(e)
g = Segment(S, E_P)
C = Intersect(g, mur)
h = Segment(F_d, E)