球面上的风筝

GeoGebra 命令及参数

1. Intersect(yAxis, zAxis) → A
2. Point(zAxis) → B
3. Sphere(A, B) → a
4. Plane(x = 1) → c
5. Plane(x = -1) → b
6. Plane(z = 3) → d
7. IntersectPath(d, b) → f
8. IntersectPath(c, d) → g
9. IntersectPath(d, a) → e
10. IntersectPath(xOyPlane, a) → h
11. Intersect(f, a, 1) → C
12. Intersect(g, a, 2) → D
13. Intersect(yAxis, h, 2) → E
14. Polygon(B, C, E, D) → q1, b_1, c_1, e_1, d_1
15. Plane(B, C, A) → i
16. Plane(B, D, A) → j
17. IntersectPath(i, a) → k
18. IntersectPath(j, a) → p
19. Plane(A, E, C) → l
20. Plane(A, E, D) → m
21. IntersectPath(l, a) → q
22. IntersectPath(m, a) → r