Based upon the optimizedcalculation of the inner vertex d(111) ,a new GC1 design program of constructing parametric tri-angular Bezier surface Lave been put forward.

• 提出了一种基于三次Bezier三角曲面片内部Bezier顶点d（111）选取优化的整体GC1Bezier三角曲面设计方法。