从平行到垂直的旋转演示

GeoGebra 命令及参数

1. Point(xAxis) → A
2. Intersect(xAxis, yAxis) → B
3. Rotate(A, α, B) → A'
4. Angle(A, B, A') → β
5. Ray(B, A') → f
6. OrthogonalLine(B, f) → g
7. Circle(B, 0.7) → c
8. Intersect(c, g, 2) → C
9. Intersect(c, yAxis, 1) → D
10. Circle(D, 0.5) → d
11. Circle(C, 0.5) → e
12. Intersect(e, g, 2) → E
13. Intersect(d, yAxis, 1) → F
14. Line(D, xAxis) → h
15. Line(F, h) → i
16. Line(C, f) → j
17. Line(E, f) → k
18. Circle(F, a) → p
19. Circle(E, a) → q
20. Intersect(p, i, 2) → G
21. Intersect(q, k, 2) → H
22. Circle(G, a) → r
23. Intersect(r, i, 2) → I
24. Circle(I, a) → s
25. Intersect(s, i, 2) → J
26. Circle(J, a) → t
27. Intersect(t, i, 2) → K
28. Circle(H, a) → c_1
29. Intersect(c_1, k, 2) → L
30. Circle(L, a) → d_1
31. Intersect(d_1, k, 2) → M
32. Circle(F, 0.3) → e_1
33. Circle(E, 0.3) → f_1
34. Intersect(e_1, yAxis, 1) → N
35. Intersect(f_1, g, 2) → O
36. Line(O, k) → l
37. Line(N, i) → m
38. Line(M, g) → n
39. OrthogonalLine(K, i) → b
40. Intersect(m, b) → P
41. Intersect(l, n) → Q
42. Intersect(j, n) → R
43. Intersect(h, b) → S
44. Line(L, n) → g_1
45. Line(H, g_1) → h_1
46. Line(J, b) → i_1
47. Line(I, b) → j_1
48. Line(G, b) → k_1
49. Intersect(j, h_1) → T
50. Intersect(j, g_1) → U
51. Intersect(h, k_1) → V
52. Intersect(h, j_1) → W
53. Intersect(h, i_1) → Z
54. Segment(N, P) → l_1
55. Segment(O, Q) → m_1
56. Polygon(F, G, V, D) → q1, f_2, g_2, v, d_2
57. Polygon(G, I, W, V) → q2, g_3, i_2, w, v_1
58. Polygon(I, J, Z, W) → q3, i_3, j_2, z_1, w_1
59. Polygon(J, K, S, Z) → q4, j_3, k_2, s_1, z_2
60. Polygon(C, T, H, E) → q5, c_2, t_1, h_2, e_2
61. Polygon(T, U, L, H) → q6, t_2, u, l_2, h_3
62. Polygon(U, R, M, L) → q7, u_1, r_1, m_2, l_3