截角八面体

GeoGebra 命令及参数

1. Circle(OO, 1, xOyPlane) → c
2. Intersect(yAxis, c, 2) → A
3. Rotate(A, 90°) → B
4. Polygon(A, B, 4, xOyPlane) → veelhoek1, f, g, h, i, C, D
5. Polygon(B, A, 6, xOyPlane) → veelhoek2, j, H, k, l, m, n, p, E, F, G
6. Polygon(A, D, 6, xOyPlane) → veelhoek3, q, L, r, s, t, a, b, I, J, K
7. Polygon(D, C, 6, xOyPlane) → veelhoek4, d, P, e, f_1, g_1, h_1, i_1, M, N, O
8. Polygon(C, B, 6, xOyPlane) → veelhoek5, j_1, T, k_1, l_1, m_1, n_1, p_1, Q, R, S
9. Circle(j_1, Q) → c_1
10. Circle(j, H) → d_1
11. Intersect(c_1, d_1) → U, V, ,
12. Line(C, B) → q_1
13. OrthogonalLine(Q, q_1, xOyPlane) → r_1
14. Intersect(q_1, r_1) → W
15. Angle(Q, W, V) → α
16. Rotate(veelhoek5, (-α), g) → schuin1
17. Line(OO, OOO) → as
18. Rotate(veelhoek2, (-α), f) → veelhoek2'
19. Rotate(veelhoek3, (-α), i) → veelhoek3'
20. Rotate(veelhoek4, α, d) → veelhoek4'
21. Rotate(F, (-α), f) → FF
22. Rotate(FF, (-(90°)), as) → FFF
23. Rotate(FF, (-(180°)), as) → FFFF
24. Plane(FFF, FFFF, FF) → o
25. Mirror(schuin1, o) → schuin1'
26. Sequence(Rotate[schuin1', (n * 90°), as], n, 1, 3) → lijst_1
27. Midpoint(FF, FFFF) → Mid
28. Mirror(veelhoek1, Mid) → veelhoek1'
29. Rotate(G, α, j) → G'
30. Rotate(R, (-α), g) → R'
31. Mirror(V, o) → V'
32. Polygon(G', V, R', V') → vierhoek1, g', v, r', v'
33. Sequence(Rotate[vierhoek1, (n * 90°), as], n, 1, 3) → lijst_2
34. Mirror(A, Mid) → AA