巴黎工商会标志的几何构造

GeoGebra 命令及参数

1. Line(A, B) → s
2. OrthogonalLine(A, s) → b
3. LineBisector(A, B) → m
4. Vector(A, B) → u
5. OrthogonalVector(u) → v
6. OrthogonalLine(I, b) → h
7. LineBisector(A, C) → d
8. Mirror(h, d) → h'
9. Intersect(m, h') → N
10. Intersect(m, d) → E
11. Circle(E, P) → q
12. Line(F, E) → j
13. Rotate(j, (7 * π / 18), E) → j'_1
14. Line(N_1, j) → l
15. OrthogonalLine(C, v, xOyPlane) → f
16. Intersect(f, m) → U
17. Midpoint(C, A) → J
18. OrthogonalLine(M, d) → i
19. Mirror(i, m) → i'
20. Intersect(h, m) → S
21. Mirror(Q, m) → Q'
22. OrthogonalLine(B, u, xOyPlane) → g
23. Intersect(g, f) → D
24. Mirror(M, m) → M'
25. Midpoint(E, M') → L
26. Intersect(g, h') → A_1
27. Polygon(A, B, D, C) → q11, a_3, b_2, d_2, c_3
28. Circle(E, N) → c
29. Circle(E, O) → k
30. Circle(E, K) → p
31. Intersect(c, j) → R, T
32. Intersect(k, j) → V, W
33. Intersect(p, j) → Z, B_1
34. Intersect(q, j) → C_1, E_1
35. Intersect(c, j'_1) → F_1, G_1
36. Intersect(k, j'_1) → H_1, I_1
37. Intersect(p, j'_1) → J_1, K_1
38. Intersect(q, j'_1) → L_1, M_1
39. Circle(E, O_1) → e_1
40. Circle(E, P_1) → f_1
41. CircleSector(E, R, G_1) → r
42. CircleSector(E, C_1, M_1) → d_1
43. CircleSector(E, V, I_1) → t
44. CircleSector(E, Z, K_1) → c_1
45. Rotate(l, (7 * π / 18), E) → j'
46. Intersect(e_1, j') → Q_1, R_1
47. Intersect(f_1, j') → S_1, T_1
48. Intersect(c, l) → U_1, V_1
49. Intersect(f_1, l) → W_1, Z_1
50. Rotate(U_1, (-(35°)), W_1) → A_2
51. CircleSector(W_1, A_2, U_1) → e
52. Rotate(W_1, (-(15°)), E) → B_2
53. Line(A_2, W_1) → n
54. Line(B_2, n) → a
55. Intersect(e_1, a) → C_2, G_2
56. Intersect(a, j') → H_2
57. CircleSector(E, R_1, C_2) → g_1
58. CircleSector(E, T_1, B_2) → h_1
59. Polygon(E, R_1, H_2) → t1, i_1, j_1, l_1
60. CircleSector(E, Z, K_1) → k_1
61. Segment(E, R) → m_1
62. Segment(E, I_1) → n_1
63. Segment(E, C_2) → p_1
64. Segment(E, R_1) → q_1