双足与杏仁图形演示

GeoGebra 命令及参数

1. Intersect(xAxis, yAxis) → A
2. Point(xAxis) → B
3. Rotate(B, 45°) → B'
4. Segment(B, C) → f
5. Segment(B', C) → g
6. OrthogonalLine(B', g) → h
7. OrthogonalLine(B, f) → i
8. Intersect(h, i) → D
9. Polygon(A, B, D, B') → vierhoek1, a, b, d, b'
10. CircleArc(H, I, F) → boog0
11. Segment(G, J) → boven
12. Segment(G, A) → k
13. Segment(A, E) → onder
14. Segment(F, E) → vertmid
15. Segment(J, I) → vertklein
16. Plane(A, C, G) → diag
17. Mirror(G, diag) → G'
18. Mirror(J, diag) → J'
19. Segment(G', J') → boven'
20. Mirror(J, diag) → J'_1
21. Mirror(I, diag) → I'
22. Segment(J'_1, I') → vertklein'
23. Mirror(boog0, diag) → boog0'
24. Mirror(F, diag) → F'
25. Mirror(E, diag) → E'
26. Segment(F', E') → vertmid'
27. Mirror(A, diag) → A'
28. Mirror(E, diag) → E'_1
29. Segment(A', E'_1) → onder'
30. Segment(I, K) → j
31. Segment(J, L) → l
32. Segment(L, K) → m
33. Segment(K, I') → n
34. Segment(L, J'_1) → p
35. Vector(A, B) → u
36. Vector(A, B') → v
37. Segment(J, N) → q
38. Segment(J'_1, O) → r
39. Segment(L, M) → s
40. Segment(O, M) → t
41. Segment(M, N) → c
42. Circle(B, 0.2) → e
43. Intersect(e, f) → T,
44. CircleArc(S, R, V) → boog1
45. Segment(N, P) → boven1
46. Segment(U, V) → vertmidden1
47. Segment(U, J) → onder1
48. Segment(P, R) → vertklein1
49. Mirror(U, diag) → U'
50. Mirror(V, diag) → V'
51. Segment(U', V') → vertmidden1'
52. Mirror(boog1, diag) → boog1'
53. Mirror(N, diag) → N'
54. Mirror(P, diag) → P'
55. Segment(N', P') → boven1'
56. Mirror(U, diag) → U'_1
57. Mirror(J, diag) → J'_2
58. Segment(U'_1, J'_2) → onder1'
59. Vector(D, B') → w
60. Vector(D, B) → u_1
61. Vector(B', C) → v_1
62. Vector(B, C) → w_1
63. Polygon(O, M, N, P') → vierhoek2, o_1, m_1, n_1, p'
64. Polygon(G, J, L, J') → vierhoek3, g_1, j_1, l_1, j'
65. Polygon(B, C, B', D) → vierhoek4, b_1, c_1, f_1, d_1
66. Point(boog0) → W
67. Vector(W, I) → e_1
68. Point(boog0') → Z
69. Vector(Z, I') → h_1
70. Point(boog1') → A_1
71. Vector(A_1, R) → i_1
72. Point(boog1) → B_1
73. Vector(B_1, R) → k_1