For the data set that carries scanning curves information (such as from CMM), a method is implemented to establishing the topological relations among the points, simplifying the complex pre-processing task - data processing.

• 针对目前在数据获取中广泛使用的三坐标测量机所测得的数据点的特点，本文提出了建立散乱点的拓扑信息的方法，简化了繁琐的数据前期处理工作。