苍蝇飞行曲线

GeoGebra 命令及参数

1. Surface(((2 + cos(t)) * cos(u)), ((2 + cos(t)) * sin(u)), sin(t), t, 0, (2 * π), u, 0, (2 * π)) → a
2. Sequence(CurveCartesian[((2 + cos(t)) * cos(u)), ((2 + cos(t)) * sin(u)), sin(t), u, 0, (2 * π)], t, 0 + (p * n), (2 * π) + (p * n), π / 10) → L_2
3. Sequence(CurveCartesian[((2 + cos(t)) * cos(u)), ((2 + cos(t)) * sin(u)), sin(t), t, 0, (2 * π)], u, 0 + (q * n), (2 * π) + (q * n), π / 10) → L_1
4. CurveCartesian(((2 + cos((p * u))) * cos((q * u))), ((2 + cos((p * u))) * sin((q * u))), sin((p * u)), u, 0, n) → b
5. Line(C, A) → f
6. Circle(B, 0.5, f) → c
7. Point(c) → D
8. Rotate(D, k, f) → D'
9. Polygon(B, D', C) → t1, c_1, b_1, d'
10. Mirror(D, f) → D'_{1}
11. Rotate(D'_{1}, (-k), f) → E
12. Polygon(B, E, C) → t2, c_2, b_2, e
13. Circle(C, 0.35, f) → d
14. Point(d) → G
15. Rotate(G, k, f) → G'
16. Mirror(G, f) → G'_{1}
17. Rotate(G'_{1}, (-k), f) → H
18. Polygon(B, G', C) → t3, c_3, b_3, g'
19. Polygon(B, G'_{1}, C) → t4, c_4, b_4, g'_{1}