旋转和平移变换

GeoGebra 命令及参数

1. Rotate(B, (-(90°)), A) → B'
2. Rotate(C, (-(90°)), A) → C'
3. Rotate(D, (-(90°)), A) → D'
4. Rotate(E, (-(90°)), A) → E'
5. Polygon({A, B, C, D, E, E', D', C', B'}) → poly1
6. Sequence(Polygon[Rotate[A, i, A], Rotate[B, i, A], Rotate[C, i, A], Rotate[D, i, A], Rotate[E, i, A], Rotate[E', i, A], Rotate[D', i, A], Rotate[C', i, A], Rotate[B', i, A]], i, 90°, 360°, 90°) → liste1
7. Sequence(Rotate[poly1, i, E], i, 90°, 360°, 90°) → liste2
8. Vector(E', E) → u
9. Sequence(Translate[liste1, Vector[(i * u)]], i, 1, 5) → liste3
10. Rotate(E', 90°, E) → E''
11. Vector(E'', E) → v
12. Sequence(Translate[liste3, Vector[(i * v)]], i, 1, 3) → liste4