This paper describes four surface modeling methods being perspective for CAD/CAMapplications,which are scattered data interpolation Gregory patch ,free-form deformation andpartial differential equation methods.

• 本文叙述可望在近期内进入CAD/CAM系统的4种曲面造型方法，即散列数据插值曲面、gregory的曲面构造方法（gregory曲面片）、自由变形技术（FFD）和用偏微分方程方法构造曲面（PDE）。