Lissajous曲线绘制机

GeoGebra 命令及参数

1. Point(xAxis) → A
2. Segment(B, E) → f
3. Segment(E, D) → g
4. Segment(D, C) → h
5. Segment(C, B) → i
6. Midpoint(C, D) → F
7. Point(xAxis) → G
8. Circle(G, F) → c
9. Rotate(H, α, G) → H'
10. Circle(H', 0.5) → d
11. Point(d) → I
12. Segment(H', G) → j
13. OrthogonalLine(H', xAxis) → k
14. Mirror(G, k) → G'
15. Segment(G', H') → l
16. Circle(G', 2) → e
17. Intersect(e, xAxis, 1) → J
18. OrthogonalLine(J, xAxis) → m
19. Point(yAxis) → K
20. Circle(K, 1) → p
21. Point(yAxis) → L
22. Rotate(L, β, K) → L'
23. Circle(L', K) → q
24. Segment(K, L') → n
25. OrthogonalLine(L', yAxis) → r
26. Mirror(K, r) → K'
27. Segment(L', K') → s
28. Circle(K', 2) → t
29. Intersect(t, yAxis, 2) → M
30. OrthogonalLine(M, yAxis) → a
31. Intersect(m, a) → N
32. Intersect(m, i) → O
33. Intersect(m, g) → P
34. Intersect(a, f) → Q
35. Intersect(a, h) → R
36. Segment(Q, R) → b
37. Segment(O, P) → f_1
38. Segment(J, G') → g_1
39. Segment(M, K') → h_1