Firstly, the thesis discusses the edge extraction and vectoring methods in order to get the contour profile of the cross-section, based on the digitalizing techniques of layer measuring.

• 其次,以带约束的面域剖分和相邻断面轮廓层间剖分为基础,研究建立面向平行截面轮廓数据点的空间三角剖分算法,并重点探讨了相邻层上对应轮廓数据环之间的分段剖分问题。