The existing CAD/CAM system methods of surface modeling based on traditional CAGD pure mathematic theory defines surface through control curve and control point with a function of adjusting local shape.

• 现有的CAD/CAM系统中的曲面造型方法建立在传统的CAGD纯数学理论的基础之上,借借助控制顶点和控制曲线来定义曲面,具有调整曲面局部形状的功能。