【讨论】如何构建如下类型的曲面

如图，底部曲线为相切的封闭曲面，请问如何构建这类型的曲面。

把CURVE打断后用boundaries试试看应该可以的

用boundaries作出来的面在交界处一般都不顺，很难作到满意的效果。是否有其他的办法呢。

Create the top surface with boundary surface first.
  
then ,
You can create the side surface using boundary surface or variable section sweep, use "curve thru point" to create curvature continuos curve so that the boundary surface you created can have C2 connection with the top surface.

把prt传上来！

Not very sure this is correct, just give it a try.

Any comment are welcomed.

ccf，你作的面非常漂亮。请教上部曲面是如何构建的。我在构建上部的曲面时，使用boundary构建失败。请指教。

I not very sure this is the best, if you had download the CDRS guide in idesign before, you should had idea on creating such surface, they normally form by 4 curve , which should create a smooth surface (certain case), keep this in mind and try to find the curve as first step when ever you want to model a surface.  
  
The top surface can be a sweep surface , a trjectory with one arc and a section with another arc, you can also use a boundary surface. The trim the surface with a projected curve. after that only you created the side surface , by using the "curve thru point, tangency set to curvature ".  
  
This surface can be create dmore easily in ISDX. Hope you can understand me in english.

Thank ccf. I got it.