绕轴旋转矩形生成三维立体图形

GeoGebra 命令及参数

1. Intersect(xAxis, yAxis) → A
2. Point(yAxis) → B
3. Point(xAxis) → C
4. OrthogonalLine(B, yAxis) → a
5. OrthogonalLine(C, xAxis) → b
6. Intersect(a, b) → D
7. Polygon(B, D, C, A) → poly1, b_1, d, c, a_1
8. Cylinder(A, B, c) → e, f, g, h
9. Circle(A, c, yAxis) → k
10. Circle(B, c, yAxis) → p
11. Rotate(B, (-r), yAxis) → B'
12. Rotate(D, (-r), yAxis) → D'
13. Rotate(C, (-r), yAxis) → C'
14. Rotate(A, (-r), yAxis) → A'
15. Polygon(B', D', C', A') → poly1', b', d', c', a'