球体 by P Porras

GeoGebra 命令及参数

1. Point(zAxis) → C
2. OrthogonalPlane(C, zAxis) → b
3. Sphere(A, r) → a
4. IntersectPath(b, a) → d
5. Point(d) → E
6. Segment(A, E) → f
7. Segment(D, C) → h
8. Circle(A, r, space) → c
9. Segment(C, E) → r_1
10. Point(zAxis) → B
11. OrthogonalPlane(B, zAxis) → i
12. IntersectPath(i, a) → k
13. Point(k) → F
14. Segment(B, F) → r_2
15. Segment(C, B) → j
16. Surface(((r * cos(u)) * cos(v)), ((r * cos(u)) * sin(v)), z(A) + (r * sin(u)), u, a_1, a_2, v, 0, (2 * pi)) → l
17. Surface(((r * cos(u)) * cos(v)), ((r * cos(u)) * sin(v)), z(A) + (r * sin(u)), u, a_2, pi - a_2, v, 0, (2 * pi)) → m
18. Segment(G, G1) → n