元素D的几何构造

GeoGebra 命令及参数

1. Rotate(B, (-(45°)), A) → B'
2. Line(A, B') → f
3. Intersect(f, yAxis) → C
4. Polygon(A, C, B) → driehoek1, b, a, c
5. Surface((r * cos(t)), l, (r * sin(t)) + 1, t, 0°, 180°, l, -1.5, 0) → d
6. Point(zAxis) → J
7. Point(zAxis) → K
8. Line(D, a) → g
9. Intersect(g, yAxis) → L
10. Line(D, yAxis) → h
11. Intersect(h, a) → M
12. Mirror(M, yAxis) → M'
13. Plane(C, M, N) → vlak
14. PointIn(vlak) → Q
15. PointIn(vlak) → R
16. PointIn(vlak) → S
17. PointIn(vlak) → T
18. Polygon(P, Q, QQ, K) → vierhoek1, p, q, qq, k
19. Polygon(Q, R, RR, QQ) → vierhoek2, q_1, r_1, rr, i
20. Polygon(R, S, SS, RR) → vierhoek3, r_2, s, ss, j
21. Polygon(S, T, TT, SS) → vierhoek4, s_1, t, tt, l
22. Polygon(T, N, H, TT) → vierhoek5, t_1, n, h_1, m
23. Plane(J, O, C) → sym
24. Mirror(vierhoek1, sym) → vierhoek1'
25. Mirror(vierhoek2, sym) → vierhoek2'
26. Mirror(vierhoek3, sym) → vierhoek3'
27. Mirror(vierhoek4, sym) → vierhoek4'
28. Mirror(vierhoek5, sym) → vierhoek5'
29. Polygon(V, P, Q, R, S, T, N, M, B, U) → veelhoek1, v, u, p_1, q_2, r_3, s_2, t_2, n_1, m_1, b_1
30. Mirror(veelhoek1, sym) → veelhoek1'
31. Polygon(U, B, D, H, TT, SS, RR, QQ, K, W) → veelhoek2, u_1, w, b_2, d_1, h_2, e, f_1, g_1, i_1, k_1
32. Mirror(veelhoek2, sym) → veelhoek2'
33. Polygon(A_1, M, N, Z) → vierhoek6, a_1, m_2, n_2, z_1
34. Mirror(vierhoek6, sym) → vierhoek6'
35. Mirror(Z, sym) → Z'
36. Mirror(A_1, sym) → B_1
37. Segment(Z', B_1) → j_1
38. Mirror(A_1, sym) → C_1
39. Mirror(M, sym) → M'_1
40. Segment(C_1, M'_1) → l_1
41. Mirror(U, sym) → U'
42. Polygon(U', V, U) → driehoek2, u_2, u', v_1
43. Polygon(D, M, N, H) → vierhoek7, d_2, m_3, n_3, h_3
44. Mirror(vierhoek7, sym) → vierhoek7'