Geogebra中的几何作图与变换示例

GeoGebra 命令及参数

1. Ray(A, C) → a
2. Ray(A, B) → b
3. Ray(A, D) → c
4. Dilate(B, k, A) → E
5. Dilate(C, k, A) → F
6. Dilate(D, k, A) → G
7. Polygon(A, E, G) → P, g, a1, e
8. Polygon(A, F, E) → Q, e1, a2, f
9. Dilate(H, k, A) → I
10. Polygon(A, G, I) → R, i, a3, g1
11. Polygon(A, F, I) → S, i1, a4, f1
12. Circle(J, radio) → d
13. Dilate(J, k, A) → K
14. Circle(K, (radio * k)) → h
15. Tangent(A, h) → j, l
16. Intersect(h, l) → L
17. Intersect(h, j) → M
18. Segment(L, A) → m
19. Segment(A, M) → n
20. Point(h) → N
21. OrthogonalLine(A_2, yAxis) → q2
22. Point(q2) → B2
23. Dilate(B2, k, A_2) → C2
24. OrthogonalLine(B2, q2) → r2
25. Point(r2) → D2
26. Circle(B2, D2) → s2
27. Ray(A_2, D2) → t2
28. Intersect(s2, r2, 2) → E2
29. Ray(A_2, E2) → b3
30. OrthogonalLine(C2, q2) → c3
31. Intersect(t2, c3) → F2
32. Intersect(b3, c3) → G2
33. Segment(F2, G2) → d3
34. Segment(A_2, F2) → e3
35. Segment(A_2, G2) → f3
36. Segment(A_2, C2) → g3
37. Sequence(Segment[K, Rotate[N, ((2 * 3.141592653589793) * s / 33), K]], s, 0, 32) → lista1