任意两直线反射变换

GeoGebra 命令及参数

1. Point(yAxis) → D
2. Point(yAxis) → E
3. Point(xAxis) → F
4. Point(xAxis) → G
5. Segment(A', B') → h
6. Segment(B', C') → i
7. Segment(C', A') → j
8. Segment(A''_{1}, B''_{1}) → k
9. Segment(B''_{1}, C''_{1}) → l
10. Segment(C''_{1}, A''_{1}) → m
11. Polygon(A, B, C, H, I) → poly1, a, b, c, h_1, i_1
12. Textfield(p) → InputBox1
13. Textfield(q) → InputBox2
14. Mirror(A, q) → A'_{1}
15. Mirror(B, q) → B'_{1}
16. Mirror(C, q) → C'_{1}
17. Mirror(H, q) → H'
18. Mirror(I, q) → I'
19. Polygon(A'_{1}, B'_{1}, C'_{1}, H', I') → poly1', a'_{1}, b'_{1}, c'_{1}, h', i'
20. Mirror(A'_{1}, p) → A''
21. Mirror(B'_{1}, p) → B''
22. Mirror(C'_{1}, p) → C''
23. Mirror(H', p) → H''
24. Mirror(I', p) → I''
25. Polygon(A'', B'', C'', H'', I'') → poly1'', j_1, k_1, l_1, h'', i''
26. Angle(p, q) → α
27. Rotate(A, (-r), J) → A'_{2}
28. Rotate(B, (-r), J) → B'_{2}
29. Rotate(C, (-r), J) → C'_{2}
30. Rotate(H, (-r), J) → H'_{1}
31. Rotate(I, (-r), J) → I'_{1}
32. Polygon(A'_{2}, B'_{2}, C'_{2}, H'_{1}, I'_{1}) → poly1'_{1}, a'_{2}, b'_{2}, c'_{2}, h'_{1}, i'_{1}