三角棱柱的 GeoGebra 演示 by Isaac Goh

GeoGebra 命令及参数

1. Intersect(xAxis, yAxis) → A
2. Point(xAxis) → B
3. Polygon(A, B, 3) → poly1, a, b, c, C
4. Prism(poly1, 5) → d, D, edgeCF, edgeDE, edgeEF, edgeDF, E, F, faceABED, faceBCFE, faceACFD, faceDEF, edgeAD, edgeBE
5. Net(d, e) → f, G, P, faceGHI, faceGHKJ, faceHIML, faceGINO, faceJKP, edgeGH, edgeHI, edgeGI, edgeGJ, H, edgeJK, edgeHK, edgeHL, edgeLM, edgeIM, edgeIN, edgeNO, edgeGO, edgeKP, edgeJP, I, J, K, L, M, N, O
6. Point(Circle[Q, edgeGI]) → R
7. Rotate(R + (edgeGO, 0), Angle[(0, 5)] + Angle[R - Q] - Angle[(6.53, 0)], R) → S
8. Rotate(S + (edgeNO, 0), Angle[(-6.53, 0)] + Angle[S - R] - Angle[(0, 5)], S) → T
9. Polygon(Q, R, S, T) → poly2, q, r, s, t
10. Rotate(Q, (-α)) → Q'
11. Rotate(R, (-α)) → R'
12. Rotate(S, (-α)) → S'
13. Rotate(T, (-α)) → T'
14. Rotate(Q, α) → Q'_1
15. Rotate(R, α) → R'_1
16. Rotate(S, α) → S'_1
17. Rotate(T, α) → T'_1
18. Polygon(Q'_1, R'_1, S'_1, T'_1) → poly2', q'_1, r'_1, s'_1, t'_1
19. Point(Circle[U, edgeHI]) → V
20. Rotate(V + (edgeIM, 0), Angle[(0, 5)] + Angle[V - U] - Angle[(6.53, 0)], V) → W
21. Rotate(W + (edgeLM, 0), Angle[(-6.53, 0)] + Angle[W - V] - Angle[(0, 5)], W) → Z
22. Polygon(U, V, W, Z) → poly3, u, v, w, z_1
23. Rotate(U, (-α)) → U'
24. Rotate(V, (-α)) → V'
25. Rotate(W, (-α)) → W'
26. Rotate(Z, (-α)) → Z'
27. Rotate(U, (-α), B) → U'_1
28. Rotate(V, (-α), B) → V'_1
29. Rotate(W, (-α), B) → W'_1
30. Rotate(Z, (-α), B) → Z'_1
31. Polygon(U'_1, V'_1, W'_1, Z'_1) → poly3', u'_1, v'_1, w'_1, z'_1