长方体的截面 by Stephanie Bagley (2)

GeoGebra 命令及参数

1. Point(xAxis) → V
2. Polygon(U, P, Q, W) → t1, m, n, q, r
3. Prism(t1, a) → ThePrism, Z, edge2, edge3, edge5, edge4, edge6, edge7, edge8, edge9, A_1, B_1, face2, face4, face3, face1, edgeUZ, edge1
4. Point(xAxis) → A
5. Point(zAxis) → O
6. Point(xAxis) → K
7. Point(yAxis) → J
8. Point(xAxis) → I
9. Plane(I, K, O) → b
10. Plane(I, J, K) → p
11. PointIn(b) → CenterOfNormalAngle
12. Circle(CenterOfNormalAngle, 0.25, b) → d
13. Line(CenterOfNormalAngle, xAxis) → g
14. Point(yAxis) → B
15. Point(Circle[B, Distance[A, B], Segment[A, B]]) → C
16. Intersect(xAxis, yAxis) → M
17. OrthogonalLine(CenterOfNormalAngle, g, b) → h
18. Intersect(g, d) → i_1, i_2
19. CircleArc(CenterOfNormalAngle, i_1, i_2, b) → ArcForPlaneAngle
20. Point(ArcForPlaneAngle) → NormalAngleHandle
21. Segment(CenterOfNormalAngle, NormalAngleHandle) → NormalSeg
22. PointIn(ThePrism) → SliceChooser
23. OrthogonalPlane(SliceChooser, NormalSeg) → PerPenPlane
24. IntersectPath(PerPenPlane, ThePrism) → CrossSection, D, l, E, F, G, H, f, i, j, k
25. PointIn(PerPenPlane) → N