动中之动-1

GeoGebra 命令及参数

1. Surface(((R + (r * cos(u))) * cos(v)), ((R + (r * cos(u))) * sin(v)), (r * sin(u)), u, 0, (2 * π), v, 0, (2 * π)) → a
2. Intersect(xAxis, yAxis) → STAR
3. Circle(STAR, q) → c
4. Intersect(c, yAxis) → B, C
5. Intersect(c, xAxis, 1) → F
6. Intersect(c, xAxis, 2) → G
7. Sphere(F, r) → b
8. Sphere(G, r) → d
9. Circle(F, r) → e
10. Circle(xAxis, G) → f
11. Circle(G, r) → g
12. Point(g) → A
13. Point(e) → D
14. Line(D, F) → h
15. Intersect(e, h, 2) → E
16. Segment(E, D) → k
17. Line(A, G) → i
18. Intersect(g, i, 2) → H
19. Segment(A, H) → j
20. Segment(D, STAR) → l
21. Segment(E, STAR) → m
22. Segment(A, STAR) → n
23. Segment(H, STAR) → p
24. Point(g) → I
25. Point(e) → J
26. Segment(G, I) → s
27. Segment(F, J) → t
28. Segment(STAR, C) → f_1