Rebuild the curve with at least 6 control points. This is necessary to achieve the desired continuity when using surface from curve network or sweep 2 rails.
重建曲线至少有6个控制点。这是必要的，以实现理想的连续性当使用曲线表面从网络或扫描第2轨。
2
Create the surface using sweep 2 rails with the tangency option on. To achieve tangent option you will have to build the surface in parts.
创建表面使用扫描第2轨与相切选项。为了实现切线选项，您将必须建设中的表面部分。
3
An effective algorithm is presented here for seeking and realizing the intersection of tool sweep volume with surface vector.