恒星轨迹探索

GeoGebra 命令及参数

1. Intersect(xAxis, yAxis) → A
2. Circle(A, u) → c_3
3. Intersect(c_3, yAxis) → B, C
4. Rotate(B, 360 * ° / (2 * a), A) → B'
5. Mirror(B', yAxis) → B''
6. Polygon(B'', B', a) → poly1, b_3, l_2, m, n, D, E, F, G, H, I, J, d_3, K, L, M, e_3, f_3, g_3, h_3, i_3, j_3, k_2
7. Dilate(poly1, o, A) → poly1'
8. Dilate(c_3, o, A) → c'
9. Ray(A, E) → d
10. Ray(A, F) → e
11. Ray(A, G) → f
12. Ray(A, B'') → b
13. Ray(A, B') → c
14. Ray(A, D) → a_1
15. Intersect(c', d) → N,
16. Intersect(c', b) → O,
17. Intersect(c', e, 1) → P
18. Intersect(c', f, 1) → Q
19. Intersect(c', c, 1) → R
20. Intersect(c', a_1, 1) → S
21. Ray(A, H) → g
22. Ray(A, I) → h
23. Ray(A, J) → i
24. Ray(A, K) → j
25. Ray(A, L) → k
26. Ray(A, M) → l
27. Intersect(c', g, 1) → T
28. Intersect(c', h, 1) → U
29. Intersect(c', i, 1) → V
30. Intersect(c', j, 1) → W
31. Intersect(c', k, 1) → Z
32. Intersect(c', l, 1) → A_1
33. Polygon(O, R, a) → poly2, h_1, j_2, s_1, e_2, B_1, C_1, D_1, E_1, F_1, G_1, H_1, i_1, I_1, J_1, K_1, j_1, k_1, l_1, m_1, g_2, h_2, i_2
34. Segment(F, N) → n_1
35. Segment(N, D) → p_1
36. Segment(D, R) → q_1
37. Segment(R, B'') → r_1
38. Segment(Q, F) → t_1
39. Segment(P, E) → a_2
40. Segment(E, S) → b_2
41. Segment(S, B') → c_2
42. Segment(B', O) → d_2
43. Segment(G, P) → f_2
44. Segment(K_1, B'') → p
45. Segment(M, O) → q
46. Segment(K_1, L) → r
47. Segment(M, Z) → s
48. Segment(L, I_1) → t
49. Segment(Z, K) → b_1
50. Segment(K, V) → c_1
51. Segment(I_1, J) → d_1
52. Segment(J, U) → e_1
53. Segment(V, I) → f_1
54. Segment(I, T) → g_1
55. Segment(U, H) → m_2
56. Segment(H, Q) → n_2
57. Segment(G, T) → p_2
58. Segment(S, B'') → q_2
59. Segment(O, D) → r_2
60. Mirror(N, d) → N'
61. Mirror(D, d) → D'
62. Segment(N', D') → s_2
63. Mirror(E, d) → E'
64. Mirror(S, d) → S'
65. Segment(E', S') → t_2
66. Mirror(F, e) → F'
67. Mirror(N, e) → N'_1
68. Segment(F', N'_1) → a_3
69. Mirror(E', e) → E''
70. Mirror(S', e) → S''
71. Segment(E'', S'') → k_3
72. Mirror(E'', f) → E'''
73. Mirror(S'', f) → S'''
74. Segment(E''', S''') → l_3
75. Mirror(F', f) → F''
76. Mirror(N'_1, f) → L_1
77. Segment(F'', L_1) → m_3
78. Mirror(F'', g) → F'''
79. Mirror(L_1, g) → M_1
80. Segment(F''', M_1) → n_3
81. Mirror(G, g) → G'
82. Mirror(T, g) → T'
83. Segment(G', T') → p_3
84. Mirror(I, h) → I'
85. Mirror(T, h) → T'_1
86. Segment(I', T'_1) → q_3
87. Mirror(U, h) → U'
88. Mirror(H, h) → H'
89. Segment(U', H') → r_3
90. Mirror(J, i) → J'
91. Mirror(U, i) → U'_1
92. Segment(J', U'_1) → s_3
93. Mirror(V, i) → V'
94. Mirror(I, i) → I'_1
95. Segment(V', I'_1) → t_3
96. Mirror(K, j) → K'
97. Mirror(V, j) → V'_1
98. Segment(K', V'_1) → a_4
99. Mirror(I_1, j) → N_1
100. Mirror(J, j) → J'_1
101. Segment(N_1, J'_1) → b_4
102. Mirror(L, k) → L'
103. Mirror(I_1, k) → O_1
104. Segment(L', O_1) → t'
105. Mirror(Z, k) → Z'
106. Mirror(K, k) → K'_1
107. Segment(Z', K'_1) → c_4