三维空间中的旋转矩形

GeoGebra 命令及参数

1. Point(yAxis) → A_1
2. Point(yAxis) → D_1
3. Ellipse(B_1, C_1, D_1) → c
4. Intersect(xAxis, yAxis) → E
5. Point(yAxis) → F
6. Ellipse(G, H, E) → d
7. Point(c) → A
8. Vector(A_1, F) → u
9. Translate(A, u) → B
10. Polygon(A_1, A, B, F) → poly1, a, i, i', f
11. Mirror(A, A_1) → D
12. Mirror(B, F) → C
13. Polygon(A, B, C, D) → poly2, i_1, i'_1, i'', i'_2
14. Point(c) → I
15. Point(c) → J
16. Point(d) → K
17. Point(d) → L
18. Segment(J, L) → b
19. Segment(I, K) → e