测量数据云三维密度及几何拓扑关系的自动搜索

提出密集测量数据云的三维密度概念，将其应用于反求工程中各几何面之间拓扑关系的自动搜索。三维密集概念也可应用于排除测量数据云中杂散干扰点及数据云数据量的化简。本文思想已成功应用于华中仿型数控系统测量数据处理软件。

3D density of closely - measuring datacloud is introduced and used for automatically searching the topo - relationships between different surfaces in reverse engineering. According to the fact that the spurious point's density value is generally lower than the real ones, all those points whose 3D density value is lower than the average ones can be deleted. The measured point's 3D density could also be used to reduce the point number of the datacloud.