等轴测投影几何演示：三维立体图形在二维平面上的投影方法

GeoGebra 命令及参数

1. Point(a_3) → C
2. OrthogonalLine(A, a_3) → b
3. Point(b) → F
4. Line(F, a_3) → c
5. Line(C, b) → d_1
6. Intersect(c, d_1) → G
7. Point(b) → B
8. Point(b) → J
9. Ray(A, D) → e
10. Ray(A, C_1) → f
11. Ray(A, B_1) → g
12. Segment(A, C) → w
13. Circle(A, w) → h_1
14. Intersect(h_1, g) → C_a,
15. Segment(B, A) → h
16. Circle(A, h) → k
17. Intersect(k, e, 1) → B_a
18. Line(C_a, e) → i
19. Line(B_a, g) → j
20. Line(C_a, f) → l
21. Segment(F, J) → d
22. Circle(A, d) → p
23. Intersect(p, f, 1) → A_2
24. Line(A_2, g) → m
25. Intersect(l, m) → E
26. Line(B_a, f) → n
27. Line(A_2, e) → q
28. Intersect(i, j) → H
29. Point(h) → O
30. Segment(A, O) → h1
31. Circle(A, h1) → s
32. Intersect(s, e, 1) → P
33. Line(P, g) → t
34. Line(O, w) → a_1
35. Segment(F, G) → e_1
36. Midpoint(B_a, H) → U
37. Midpoint(B_a, U) → V
38. Midpoint(U, H) → W
39. Line(V, e) → j_1
40. Line(W, e) → k_1
41. Intersect(t, j_1) → Z
42. Intersect(t, k_1) → A_1
43. Segment(V, Z) → l_1
44. Segment(Z, A_1) → m_1
45. Segment(A_1, W) → n_1
46. Point(d) → D_1
47. Line(D_1, e_1) → p_1
48. Intersect(d_1, p_1) → G_1
49. Segment(F, D_1) → d1
50. Circle(B_a, d1) → q_1
51. Intersect(q_1, n, 2) → H_1
52. Line(H_1, j) → r_1
53. Line(V, n) → s_1
54. Line(W, s_1) → t_1
55. Line(H, t_1) → a_2
56. Line(H_1, e) → b_2
57. Intersect(r_1, s_1) → K
58. Intersect(r_1, t_1) → I_1
59. Intersect(a_2, r_1) → J_1
60. Line(K, e) → c_2
61. Line(I_1, c_2) → d_2
62. Line(J_1, i) → e_2
63. Line(P, f) → f_2
64. Intersect(b_2, f_2) → K_1
65. Line(B, a_3) → r
66. Intersect(d_1, r) → I
67. Midpoint(B, I) → L
68. Midpoint(L, B) → M
69. Midpoint(I, L) → N
70. Line(M, h) → b_1
71. Line(N, h) → c_1
72. Intersect(a_1, b_1) → Q
73. Intersect(a_1, c_1) → R
74. OrthogonalLine(L, w) → f_1
75. Point(h) → S
76. Segment(S, A) → h2
77. Circle(A, h2) → g_1
78. Intersect(g_1, e) → T,
79. Line(S, a_3) → a
80. Intersect(d_1, a) → E_1
81. Line(J, p_1) → i_1
82. Intersect(d_1, i_1) → F_1
83. Intersect(p_1, b_1) → M_1
84. Intersect(c, b_1) → N_1
85. Intersect(c, c_1) → O_1
86. Intersect(p_1, c_1) → P_1
87. Segment(B, M) → g_2
88. Segment(M, Q) → h_2
89. Segment(Q, R) → i_2
90. Segment(R, N) → j_2
91. Segment(N, I) → k_2
92. Segment(I, C) → l_2
93. Segment(S, E_1) → m_2
94. Segment(G, F_1) → n_2
95. Segment(J, F_1) → p_2
96. Segment(D_1, G_1) → q_2
97. Segment(N_1, M_1) → r_2
98. Segment(O_1, P_1) → s_2
99. Segment(B_a, V) → t_2
100. Segment(W, H) → b_3
101. Segment(H, C_a) → c_3
102. Segment(C_a, E) → d_3
103. Segment(E, A_2) → e_3
104. Segment(B_a, H_1) → f_3
105. Segment(H_1, K) → h_3
106. Segment(V, K) → i_3
107. Segment(W, I_1) → j_3
108. Segment(I_1, J_1) → k_3
109. Segment(H, J_1) → l_3
110. Line(T, f) → m_3
111. Intersect(q, m_3) → L_1
112. Line(L_1, g) → n_3
113. Line(T, g) → p_3
114. Intersect(b_2, m_3) → R_1
115. Intersect(k_1, e_2) → S_1
116. Intersect(k_1, e_2) → T_1
117. Segment(L_1, A_2) → r_3
118. Segment(H_1, R_1) → g_3
119. Segment(R_1, L_1) → t_3
120. Line(E, e) → q_3
121. Intersect(n_3, q_3) → Q_1
122. Segment(L_1, Q_1) → s_3
123. Segment(Q_1, E) → a_4
124. Line(R_1, g) → b_4
125. Line(Q_1, f) → c_4
126. Intersect(b_4, c_4) → U_1
127. Segment(Q_1, U_1) → d_4
128. Segment(R_1, U_1) → e_4
129. Segment(J_1, U_1) → f_4
130. Intersect(j_1, d_2) → W_1
131. Segment(A_2, A) → m_4
132. Segment(A, B_a) → n_4
133. Segment(A, C_a) → p_4
134. Line(Z, t_3) → g_4
135. Line(A_1, g_4) → h_4
136. Intersect(c_2, g_4) → V_1
137. Intersect(d_2, h_4) → Z_1
138. Segment(Z, V_1) → i_4
139. Segment(Z_1, I_1) → j_4
140. Segment(K, V_1) → k_4
141. Segment(V_1, Z_1) → l_4
142. Segment(A_1, Z_1) → q_4