双曲理想四面体

GeoGebra 命令及参数

1. Plane(xAxis, yAxis) → P
2. PointIn(P) → A
3. PointIn(P) → B
4. PointIn(P) → C
5. LineBisector(B, A, xOyPlane) → f
6. LineBisector(B, C, xOyPlane) → g
7. Intersect(f, g) → O
8. Plane(A, C, A + (0, 0, 1)) → b
9. Plane(A, B, A + (0, 0, 1)) → c
10. Plane(C, B, C + (0, 0, 1)) → a
11. Surface((((u * x(A)) + ((1 - u) * x(B))) * v) + ((1 - v) * x(C)), (((u * y(A)) + ((1 - u) * y(B))) * v) + ((1 - v) * y(C)), sqrt(Distance[O, A]^(2) - ((((u * x(A)) + ((1 - u) * x(B))) * v) + ((1 - v) * x(C)) - x(O))^(2) - ((((u * y(A)) + ((1 - u) * y(B))) * v) + ((1 - v) * y(C)) - y(O))^(2)), u, 0, 1, v, 0, 1) → i
12. PointIn(P) → D
13. Face(A, B, D) → d
14. Face(A, C, D) → e
15. Face(B, C, D) → h
16. PointIn(P) → E
17. Face(B, C, E) → k
18. Face(A, B, E) → l
19. Face(A, C, E) → m
20. Face(A, D, E) → j
21. Face(B, D, E) → n
22. Face(C, D, E) → o