立方体阴影演示

GeoGebra 命令及参数

1. Point(Circle[(1, -1, -1), Distance[(-1, -1, -1), (1, -1, -1)], Segment[(-1, -1, -1), (1, -1, -1)]]) → A
2. Cube((-1, -1, -1), (1, -1, -1), A) → a, B, faceABFE, faceCDEF, edge2, edge1, edge4, edgeAB, edge3, edgeBF, edgeCF, edgeCD, C, edge5, edgeDE, edgeAE, edgeEF, D, E, F, face1, face3, face2, face4
3. Sphere((0, 0, 0), 3) → b
4. PointIn(b) → I
5. Line(I, (0, 0)) → f
6. OrthogonalPlane(I, f) → c
7. OrthogonalLine(C, c) → g
8. OrthogonalLine(F, c) → h
9. OrthogonalLine(E, c) → i
10. OrthogonalLine(B, c) → j
11. OrthogonalLine(G, c) → k
12. OrthogonalLine(H, c) → l
13. OrthogonalLine(A, c) → m
14. Intersect(i, c) → J
15. Intersect(h, c) → K
16. Intersect(m, c) → L
17. Intersect(g, c) → M
18. Intersect(l, c) → N
19. Intersect(j, c) → O
20. Intersect(k, c) → P
21. OrthogonalLine(D, c) → n
22. Intersect(n, c) → Q
23. Polygon(M, K, O, P) → q1, m_1, k_1, o, p
24. Polygon(Q, J, L, N) → q2, q, j_1, l_1, n_1
25. Polygon(Q, M, K, J) → q3, q_1, m_2, k_2, j_2
26. Polygon(L, O, K, J) → q4, l_2, o_1, k_3, j_3
27. Polygon(Q, M, P, N) → q5, q_2, m_3, p_1, n_2
28. Polygon(P, O, L, N) → q6, p_2, o_2, l_3, n_3