速度叠加原理的动态几何演示

GeoGebra 命令及参数

1. Point(yAxis) → B
2. Point(xAxis) → C
3. Point(yAxis) → A
4. Ray(A, B) → a
5. Ray(A, C) → b
6. OrthogonalLine(C, b) → d
7. Rotate(C, α, A) → C'
8. Ray(A, C') → e
9. Angle(C, A, Rotate[C, α, A]) → α_1
10. OrthogonalLine(C', b) → f
11. OrthogonalLine(C', a) → g
12. Intersect(g, a) → Ve
13. Intersect(f, b) → τ
14. Segment(A, Ve) → v_{ca}
15. Segment(A, τ) → cosinus
16. Intersect(e, d) → Vi2
17. Segment(C, Vi2) → v_{ac}
18. Segment(A, Vi2) → Secans
19. Intersect(f, g) → D
20. CircleArc(A, C, D) → Arc
21. Line(Vi2, b) → h
22. Segment(Ve, C') → i
23. Segment(C', τ) → j
24. Point(Arc) → F
25. Midpoint(D, A) → J
26. Circle(J, A) → p
27. Ray(D, Vi2) → q
28. Point(d) → K
29. Segment(K, C) → r
30. Point(q) → L
31. Segment(Ve, D) → s
32. Segment(D, τ) → t
33. Midpoint(Vi2, D) → M
34. Point(q) → O
35. Segment(Vi2, A) → secans
36. Ray(A, Vi2) → a_1
37. Ray(A, Vi2) → k
38. Segment(D, Vi2) → exsec
39. Midpoint(D, A) → P
40. CircleArc(A, C, B) → c
41. Intersect(h, yAxis) → E
42. Point(Circle[E, 1]) → Q
43. Segment(E, Q) → l
44. CircleArc(E, Vi2, Q) → c_1
45. Rotate(Vi2, β, E) → Vi2'
46. Angle(Vi2, E, Vi2') → γ
47. Ray(E, Vi2') → m
48. Intersect(m, r) → R
49. Segment(E, R) → n
50. Segment(Vi2, R) → v_{ba}
51. CircleArc(E, Vi2, Vi2') → d_1
52. Line(Vi2', h) → e_1
53. Intersect(e_1, yAxis) → S
54. Segment(S, Vi2') → f_1
55. Segment(E, S) → v_{ab}
56. Point(xAxis) → T
57. Line(T, yAxis) → h_1
58. Segment(E, Vi2) → i_1
59. Point(h_1) → U
60. Segment(T, U) → j_1
61. Line(R, xAxis) → k_1
62. Intersect(k_1, j_1) → W
63. Segment(R, W) → l_1
64. Segment(T, W) → v_{bc}
65. Point(Circle[T, 1]) → Z
66. Segment(T, Z) → n_1
67. Line(Z, j_1) → p_1
68. Point(p_1) → A_1
69. Segment(Z, A_1) → q_1
70. Point(Circle[Z, 1]) → B_1
71. CircleArc(Z, B_1, T) → r_1
72. Segment(W, Z) → s_1
73. Intersect(r_1, s_1) → C_1,
74. CircleArc(Z, C_1, T) → t_1
75. Line(C_1, xAxis) → a_2
76. Intersect(a_2, q_1) → D_1
77. Segment(Z, D_1) → v_{cb}
78. Segment(D_1, C_1) → c_2
79. Angle(T, Z, C_1) → δ