Obraz štvorca v osovej afinite

\text{Zostrojte obraz štvorca }ABCD \text{ v OA:  os  }o = DS_A_B,  \text{ smer } s = AA_1, \text{ kde }A_1=S_B_C.

\text{Postup

S_{BC}

1. \; D = D_1,  A → S_B_C  \; ⇒AD → A_1D 

A = (-1.5, -1.5)
B = (1.5, -1.5)
mnohouholník1, f, l, m, n, C, D = Polygon(A, B, 4)
j = Segment(B, A)
S_{AB} = Intersect(j, yAxis)
o = Line(D, S_{AB})
E = Midpoint(C, B)
u = Vector(A, E)
A_1: E