达兰贝尔椭圆演示

GeoGebra 命令及参数

1. Cone(A, B, r) → b, c, d
2. Line(D, yAxis) → f
3. Intersect(xAxis, c, 1) → E
4. Segment(B, E) → g
5. Point(g) → F
6. Plane(F, f) → p
7. Intersect(xAxis, c, 2) → I
8. Line(B, I) → n
9. Line(F, D) → i
10. Intersect(i, n) → C
11. AngularBisector(B, C, F) → h
12. Intersect(h, zAxis) → G
13. OrthogonalLine(G, n, space) → j
14. Intersect(j, n) → H
15. Sphere(G, H) → e
16. AngularBisector(E, F, C) → k
17. Intersect(k, zAxis) → J
18. OrthogonalLine(J, i, space) → l
19. Intersect(l, i) → K
20. Sphere(J, K) → m
21. IntersectPath(p, b) → q
22. Corner(q) → L, M, T, U
23. IntersectPath(p, m) → s
24. IntersectPath(p, e) → t
25. OrthogonalLine(J, n, space) → f_1
26. Intersect(f_1, d) → N, O
27. Intersect(n, l) → P
28. Intersect(l, f_1) → Q
29. Point(yAxis) → R
30. Plane(I, A, R) → p_1
31. Plane(N, p_1) → q_1
32. IntersectPath(q_1, m) → c_1
33. OrthogonalLine(G, g, space) → g_1
34. Intersect(g_1, g) → S
35. Plane(S, p_1) → r_1
36. IntersectPath(r_1, e) → d_1
37. Point(d_1) → V
38. Line(B, V) → h_1
39. Intersect(h_1, c_1) → W,
40. Segment(V, W) → i_1
41. Intersect(i_1, q) → Z,
42. Point(s) → F_1
43. Segment(F_1, Z) → j_1
44. Point(t) → F_2
45. Segment(F_2, Z) → k_1