维米尔与绘画的寓言

GeoGebra 命令及参数

1. Line(A, T) → a
2. Point(a) → B
3. Distance(A, B) → dx
4. OrthogonalLine(A, a) → b
5. Line(A, B) → c
6. Line(A, C) → d
7. OrthogonalLine(C, d) → e
8. OrthogonalLine(B, c) → f
9. Intersect(e, f) → D
10. Distance(A, C) → dy
11. Segment(Dφ1, Aφ1) → n
12. Segment(Aφ2, Dφ2) → p
13. Segment(Bφ2, Cφ2) → q
14. Segment(Cφ1, Bφ1) → r
15. Segment(C, Aφ1) → s
16. Segment(C, Aφ2) → a1
17. Segment(B, C) → b1
18. Segment(Bφ1, C) → c1
19. Segment(Bφ2, C) → d1
20. Segment(D, Cφ2) → t
21. Segment(D, Cφ1) → e1
22. Segment(D, A) → f1
23. Segment(D, Aφ1) → g1
24. Segment(D, Aφ2) → h1
25. Segment(A, Dφ1) → i1
26. Segment(A, Dφ2) → j1
27. Segment(A, Bφ2) → k1
28. Segment(A, Bφ1) → l1
29. Segment(B, Cφ1) → m1
30. Segment(B, Cφ2) → n1
31. Segment(B, Dφ1) → p1
32. Segment(B, Dφ2) → q1
33. Intersect(l1, m1) → E
34. Intersect(k1, n1) → F
35. Point(f) → G
36. Intersect(d1, j1) → H
37. Intersect(t, p1) → I
38. Point(f) → J
39. OrthogonalLine(J, f) → r1
40. OrthogonalLine(I, f) → s1
41. OrthogonalLine(F, f) → a2
42. OrthogonalLine(E, f) → b2
43. Intersect(n, b2) → K
44. Intersect(f, b2) → L
45. Intersect(p, a2) → M
46. Intersect(n, s1) → O
47. Intersect(f, s1) → P
48. Segment(O, P) → d2
49. Intersect(f, a2) → Q
50. Intersect(s, a2) → R
51. Segment(L, K) → e2
52. Segment(Q, R) → f2
53. Intersect(n, r1) → S
54. Segment(J, S) → g2
55. OrthogonalLine(G, f) → t1
56. Intersect(j1, t1) → N
57. Segment(N, G) → c2
58. Midpoint(A, C) → U
59. Midpoint(D, B) → V
60. Midpoint(C, D) → W
61. Midpoint(B, A) → Z
62. Segment(U, D) → h2
63. Segment(U, B) → i2
64. Segment(V, A) → j2
65. Segment(V, C) → k2
66. Segment(W, A) → l2
67. Segment(Z, C) → n2
68. Segment(Z, D) → p2
69. Segment(W, B) → m2