Foto cd's

In de foto zijn lijnen aangebracht over lijnstukken in
de foto die evenwijdig horen te zijn.
Wat valt op aan de snijpunten van deze lijnen.

A = (0.7922938051112913, 1.72088922203564)
B = (-0.35932361992923745, 4.487418438512313)
a = Line(A, B)
C = (2.3410206870623473, 2.1709466065342373)
D = (0.22310358353953572, 4.791869022143716)
b = Line(C, D)
E = (3.545586039690946, 2.528345117753712)
F = (0.5143171852739222, 5.122793569569156)
c = Line(E, F)
G = (0.38194736630374654, 2.3165534074014307)
K = (4.763388374216563, 1.2443578737430074)
L = (3.770614731940245, 4.844816949731787)
f = Line(K, L)
M = (2.8837369448400674, 1.3105427832280954)
N = (3.0955286551923487, 4.421233529027225)
g = Line(M, N)
O = Intersect(b, c)
P = Intersect(f, g)
R = (2.6984191982818215, 2.6210039910328335)
S = (0.6599239861411156, 1.681178276344586)
T = (2.1424659586070836, 3.0842983574284486)
j = Line(S, T)
H = (1.0835074068456778, 0.6486936883772153)
I = (3.7573777500432275, 3.9579391626316083)
d = Line(H, I)
J = Intersect(d, j)