POSTUP

1) T1 - SPOJOVÁNÍ

2) T2 - ROVNOBĚŽNOST

3) T5 - ŠÍP ... kde se zapíchne do podlahy?

4) PORO (zelená)

5) Potřebuju si PORO protáhnout tak, abych 
viděl její průsečík s podlahou.

6) T3 - KOUT ... K_1

7) T3 - KOUT ... K_2

8) K_1K_2 - průsečnice PORO s podlahou.

9) Tady se šíp PQ zapíchne do podlahy ... W

1

10) Nový bod řezu ...1

2

11) T2 - ROVNOBĚŽNOST

KONEC!

B = (2, 2, 0)
C = (-2, 2, 0)
C_1 = (2, -2, 0)
D = (-2, -2, 0)
b, I, J, K, L, Q, N, O, P_1, Q_1, R_1, S, T, R, V, W_1, P, A_1, B_1, faceBCIJK, faceBKOUP, faceBCLQP, faceCIMRL, faceIJNSM, faceJKOTN, face7, faceB_1UPQV, faceLQVWR, faceMRWZS, faceA_1TNSZ, face12, edgeBK, edgeBC, edgeCI, edgeIJ, edgeJK, edgeBP, edgeKO, edgeOU, edgePU, edgePQ, edgeLQ, edgeCL, edgeLR, edgeMR, edgeIM, edgeMS, edgeNS, edgeJN, edgeNT, edgeOT, edgeA_1T, edge1, edgeB_1U, edgeB_1V, edgeQV, edgeVW, edgeRW, edgeWZ, edgeSZ, edgeA_1Z = Dodecahedron(B, C, xOyPlane)
poly1, i, j, k, b_1, c = Polygon(I, J, K, B, C)
a = Segment(P, Q)
d = Segment(R, B)
e = Line(P, Q)
poly2, r_1, q, s, p, w = Polygon(R_1, Q, S, P, W_1)
g = Ray(S, Q)
h = Ray(J, I)
K_1 = Intersect(g, h)
f = Ray(R_1, Q)
l = Ray(C, I)
K_2 = Intersect(f, l)
m = Line(K_1, K_2)
W = Intersect(m, e)
n = Segment(B, W)
A = Intersect(n, edgeCI)
r = Segment(B, A)
t = Segment(A, Q)
a_1 = Line(R, t)
E = Intersect(a_1, edge1)
c_1 = Segment(R, E)
d_1 = Segment(E, P)
mnohoúhelník1, b_2, a_2, q_1, p_1, e_1, r_2 = Polygon(B, A, Q, P, E, R)