垂直镜面反射

GeoGebra 命令及参数

1. Segment(A, B) → f
2. Midpoint(G, H) → I
3. Midpoint(E, C) → J
4. Midpoint(J, D) → L
5. Midpoint(D, I) → T
6. Midpoint(R, S) → U
7. Vector(J, K) → v
8. Vector(K, D) → u
9. Vector(Q, D) → a
10. Vector(I, Q) → b
11. Vector(M, K) → w
12. Vector(U, Q) → c
13. If(y(Q) < y(B), 0, 1) → BottomCheck1
14. If(y(Q) > y(A), 0, 1) → BottomCheck2
15. If(y(K) > y(A), 0, 1) → TopCheck1
16. If(y(K) < y(B), 0, 1) → TopCheck2
17. Vector(A, D) → l
18. Vector(B, D) → n
19. Segment(N, O) → p
20. Segment(V, W) → q
21. Vector(Z, A) → k
22. Segment(A_1, B_1) → r
23. Segment(D_1, C_1) → s
24. Vector(E_1, A) → t
25. Vector(O_1, B) → m
26. Vector(R_1, B) → u_1
27. Textfield(h) → InputBox1
28. Textfield(size) → InputBox3
29. Textfield(height) → InputBox4
30. Textfield(position) → InputBox2
31. Segment(J_1, K_1) → f_1
32. Segment(L_1, M_1) → g_1
33. Vector(U_1, J) → h_1
34. Vector(W_1, D) → i_1
35. Vector(B_2, A) → v_1
36. Vector(C_2, B) → w_1