立方体旋转轴

GeoGebra 命令及参数

1. Cube(A, B, xOyPlane) → a, C, faceBCGF, faceCDHG, faceEFGH, edgeAD, edgeAB, edgeBC, edgeCD, edgeAE, edgeDH, edgeEH, D, edgeEF, edgeBF, edgeFG, edgeCG, edgeGH, E, F, G, H, faceABCD, faceADHE, faceABFE
2. PointIn(faceABCD) → J
3. PointIn(faceEFGH) → I
4. Line(I, J) → b
5. Rotate(a, (-α), b) → a'
6. Rotate(faceABCD, (-α), b) → faceABCD'
7. Rotate(faceABFE, (-α), b) → faceABFE'
8. Rotate(faceADHE, (-α), b) → faceADHE'
9. Rotate(faceBCGF, (-α), b) → faceBCGF'
10. Rotate(faceCDHG, (-α), b) → faceCDHG'
11. Rotate(faceEFGH, (-α), b) → faceEFGH'
12. Midpoint(F, H) → K
13. Midpoint(A, C) → L
14. Midpoint(F, C) → M
15. Midpoint(E, D) → N
16. Midpoint(H, C) → O
17. Midpoint(E, B) → P
18. Midpoint(edgeFG) → Q
19. Midpoint(edgeGH) → R
20. Midpoint(edgeEH) → S
21. Midpoint(edgeEF) → T
22. Midpoint(edgeBF) → U
23. Midpoint(edgeCG) → V
24. Midpoint(edgeBC) → W
25. Midpoint(edgeDH) → Z
26. Midpoint(edgeAE) → A_1
27. Midpoint(edgeAD) → B_1
28. Midpoint(edgeAB) → C_1
29. Midpoint(edgeCD) → D_1