圆锥曲线生成演示：旋转平面切割圆锥的截面变化

GeoGebra 命令及参数

1. Point(zAxis) → A
2. Intersect(xAxis, yAxis) → B
3. Cone(A, B, 2) → a, c, b
4. Point(zAxis) → C
5. Cone(C, B, 2) → d, e, f
6. Point(zAxis) → D
7. Plane(H, G, F) → g
8. Segment(F, G) → i
9. Rotate(g, (n * π), i) → g'
10. IntersectPath(g', d) → h
11. Corner(h) → I, J
12. IntersectPath(g', a) → k
13. Corner(k) → K, L
14. PointIn(g') → M
15. PointIn(g') → N
16. PointIn(g') → O
17. PointIn(g') → P
18. Polygon(M, P, O, N) → poly1, m, p, o, n_1