螺旋玛丽S范例

GeoGebra 命令及参数

1. Polygon(A, B, 3) → poly1, f, g, h, C
2. OrthogonalLine(C, f) → i
3. Intersect(i, poly1) → D, E
4. Segment(C, D) → j
5. Polygon(C, D, 3) → poly2, k, l, m, F
6. OrthogonalLine(F, j) → n
7. Intersect(j, k) → G
8. Intersect(g, l) → H
9. Polygon(C, H, 3) → poly3, p, q, r, I
10. Intersect(q, m) → J
11. Polygon(C, J, 3) → poly4, s, t, a, K
12. Intersect(r, t) → L
13. Polygon(C, L, 3) → poly5, b, c, d, M
14. Intersect(a, c) → N
15. Polygon(C, N, 3) → poly6, e, f_1, g_1, O
16. Intersect(d, f_1) → P
17. Polygon(C, P, 3) → poly7, h_1, i_1, j_1, Q
18. Intersect(i_1, g_1) → R
19. Polygon(C, R, 3) → poly8, k_1, l_1, m_1, S
20. Intersect(l_1, j_1) → T
21. Polygon(C, T, 3) → poly9, n_1, p_1, q_1, U
22. Intersect(m_1, p_1) → V
23. Polygon(C, V, 3) → poly10, r_1, s_1, t_1, W
24. Intersect(s_1, poly9) → Z, Z_1
25. Polygon(C, Z_1, 3) → poly11, a_1, b_1, c_1, A_1
26. Intersect(t_1, poly11) → B_1, C_1
27. Polygon(C_1, B_1, 3) → poly12, d_1, e_1, f_2, D_1
28. Intersect(c_1, e_1) → E_1
29. Polygon(C_1, E_1, 3) → poly13, g_2, h_2, i_2, F_1