长方体的截面 by Stephanie Bagley

GeoGebra 命令及参数

1. Polygon(R, C_1, T, S) → q1, r_1, c_1, t, s
2. Point(xAxis) → V
3. Polygon(U, P, Q, W) → t1, m, n, q, r
4. Prism(q1, a) → ThePrism, Z, edge1, edge2, edge3, edge4, edge5, edge6, edge7, edge8, A_1, B_1, D_1, face1, face2, face3, face4, face5
5. Point(xAxis) → A
6. Point(zAxis) → O
7. Point(xAxis) → K
8. Point(yAxis) → J
9. Point(xAxis) → I
10. Plane(I, K, O) → b
11. Plane(I, J, K) → p
12. PointIn(b) → CenterOfNormalAngle
13. Circle(CenterOfNormalAngle, 0.25, b) → d
14. Line(CenterOfNormalAngle, xAxis) → g
15. Point(yAxis) → B
16. Point(Circle[B, Distance[A, B], Segment[A, B]]) → C
17. Intersect(xAxis, yAxis) → M
18. OrthogonalLine(CenterOfNormalAngle, g, b) → h
19. Intersect(g, d) → i_1, i_2
20. CircleArc(CenterOfNormalAngle, i_1, i_2, b) → ArcForPlaneAngle
21. Point(ArcForPlaneAngle) → NormalAngleHandle
22. Segment(CenterOfNormalAngle, NormalAngleHandle) → NormalSeg
23. PointIn(ThePrism) → SliceChooser
24. OrthogonalPlane(SliceChooser, NormalSeg) → PerPenPlane
25. IntersectPath(PerPenPlane, ThePrism) → CrossSection, D, k, l, e, E, F, G, H, E_1, f, i, j
26. PointIn(PerPenPlane) → N