- a = 1;
- b = 2;
- c = 3;
- tu[1] = ParametricPlot3D[{a*u*Cos[v], b*u*Sin[v], c*u}, {u, 3, 5}, {v,
- 0, 2 Pi}, Mesh -> None, Boxed -> False, Axes -> False];
- tu[2] = ParametricPlot3D[{a*u*Cos[v], b*u*Sin[v], 9}, {u, 0, 3}, {v,
- 0, 2 Pi}, Mesh -> None];
- tu[3] = ParametricPlot3D[{3*Sin[u]*Cos[v], 3*Sin[u]*Sin[v],
- 11 + c*Cos[u]}, {u, 0, Pi/2}, {v, 0, 2 Pi}, Mesh -> None];
- tu[4] = ParametricPlot3D[{5.7 a*Sin[u]*Cos[v], 5.7 b*Sin[u]*Sin[v],
- 18 - 2 c*Cos[u]}, {u, 0, Pi/3}, {v, 0, 2 Pi}, Mesh -> None];
- Show[Table[tu[i], {i, 1, 4}]]
复制代码 有几个人见过元宝呢,参数你自己确定吧,如果加上PlotPoints->200可以取消锯齿.用Color函数可以改变颜色. |