圆形花坛：由圆弧与角平分线生成对称几何与面积构造

GeoGebra 命令及参数

1. Intersect(xAxis, yAxis) → A
2. Circle(A, 1) → c
3. Point(c) → B
4. Segment(A, B) → a
5. Point(a) → C
6. Segment(A, C) → b
7. Circle(A, 1 / b) → d
8. Ray(A, B) → e
9. Intersect(d, e, 1) → D
10. Circle(A, 1 / b^(2)) → f
11. Intersect(f, e, 1) → E
12. OrthogonalLine(A, a) → h
13. Intersect(d, h, 2) → G
14. AngularBisector(D, A, G) → i
15. Intersect(d, i, 2) → H
16. Polygon(D, H, 8) → poly1, j, J, K, L, M, N, k, l, m, n, p, q, r, I
17. AngularBisector(N, A, D) → s
18. AngularBisector(D, A, H) → t
19. Intersect(c, s, 2) → O
20. Intersect(c, t, 2) → P
21. Polygon(O, P, 8) → poly2, a_1, R, S, T, U, V, b_1, c_1, d_1, e_1, f_1, g_1, h_1, Q
22. Polygon(O, D, T, L, U, M, V, N, P, H, Q, I, R, J, S, K) → poly3, o, k_1, t_1, l_1, u, m_1, v, n_1, d_2, p_1, h_2, q_1, i_1, r_1, j_1, s_1
23. CircleArc(H, D, I) → f_2
24. CircleArc(J, I, K) → g_2
25. CircleArc(L, K, M) → k_2
26. CircleArc(N, M, D) → p_2
27. Ray(A, N) → g
28. Intersect(p_2, g, 1) → F
29. Segment(N, F) → a_2
30. Point(a_2) → W
31. Circle(A, W) → c_2
32. Intersect(c_2, p_2) → Z, A_1, ,
33. Intersect(c_2, f_2) → B_1, C_1, ,
34. Intersect(c_2, g_2) → D_1, E_1, ,
35. Intersect(c_2, k_2) → F_1, G_1, ,
36. CircleArc(I, B_1, E_1) → e_2
37. CircleArc(K, D_1, G_1) → q_2
38. CircleArc(M, F_1, A_1) → r_2
39. CircleArc(D, Z, C_1) → s_2