Gigantotron 几何相似性演示

GeoGebra 命令及参数

1. Line(A, B) → a
2. OrthogonalLine(A, a) → b
3. Rotate(b, 30*°, A) → b'
4. Circle(A, H) → c
5. Circle(A, W) → d
6. Circle(A, L) → e
7. Intersect(c, a, 2) → C
8. Intersect(d, b, 1) → D
9. Intersect(e, b', 1) → E
10. OrthogonalLine(C, a) → f
11. OrthogonalLine(D, b) → g
12. OrthogonalLine(E, a) → i
13. Line(D, b') → j
14. Line(E, a) → k
15. Line(C, b') → l
16. Intersect(f, g) → F
17. Intersect(i, j) → G
18. Line(G, a) → m
19. Intersect(k, l) → H_1
20. Line(F, b') → n
21. Intersect(m, n) → I
22. Polygon(A, C, F, D) → poly1, a_1, c_1, f_1, d_1
23. Polygon(D, G, I, F) → poly2, d_2, g_1, i_1, f_2
24. Polygon(C, F, I, H_1) → poly3, c_2, f_3, i_2, h_1
25. Segment(G, E) → p
26. Segment(H_1, E) → q
27. Segment(E, A) → r
28. Line(A, D) → h
29. OrthogonalLine(G, h) → s
30. Intersect(h, s) → J
31. Circle(J, 2) → t
32. Intersect(t, h, 2) → K
33. Line(A, D) → b_1
34. OrthogonalLine(K, b_1) → e_1
35. Line(K, d_2) → j_1
36. Circle(K, scale * H) → k_1
37. Circle(K, scale * W) → p_1
38. Circle(K, scale * L) → q_1
39. Intersect(k_1, e_1, 2) → M
40. Intersect(p_1, b_1, 2) → N
41. Intersect(q_1, j_1, 2) → O
42. Line(N, e_1) → l_1
43. Line(M, b_1) → m_1
44. Line(N, j_1) → n_1
45. Line(O, e_1) → r_1
46. Line(M, j_1) → s_1
47. Intersect(l_1, m_1) → P
48. Intersect(r_1, s_1) → Q
49. Line(Q, b_1) → a_2
50. Polygon(K, N, P, M) → poly4, k_2, n_2, p_2, m_2
51. Segment(K, O) → b_2
52. Segment(O, Q) → e_2
53. Line(N, h_1) → t_1
54. Line(O, k_2) → g_2
55. Line(Q, g_2) → h_2
56. Intersect(t_1, g_2) → R
57. Line(R, n_2) → j_2
58. Intersect(h_2, j_2) → S
59. Polygon(N, R, S, P) → poly5, n_3, r_2, s_2, p_3
60. Polygon(S, Q, M, P) → poly6, s_3, q_2, m_3, p_4
61. Segment(O, R) → l_2