等高线、高程点与高程注记一致性检查方法研究  

Study on the Method of Checking the Consistency of Contour Lines, Elevation Points and Evaluation Notations

作　　者：华亮春[1] 陈学工[1] 艾驰[1] 

机构地区：[1]湖南省第三测绘院

出　　处：《测绘科学与工程》2010年第4期28-32,共5页Geomatics Science and Engineering

摘　　要：文章针对目前高程点和高程注记还没有一种自动化程度高的匹配方法问题，提出了采用整体距离最短原则实现高准确性自动匹配，并按X和Y方向双排序快速匹配提高运算速度；另外，现有高程值检查算法存在一定比率的漏查和错查，为此提出了一种基于面拓扑的点线矛盾检查方法，能够100％挑出高程矛盾。经实践证明，该方法取得了比较好的效果。Currently, there is no high degree automatic method for matching elevation points and elevation notations. Based on the principle that the total distance between elevation point and elevation notation is the shortest, an accurate an automatic matching method is put forward. Meanwhile, the calculating speed has been enhanced by sorting both from X - axis and Y - axis. Moreover, a method for fully checking the contradictions between points and lines based on the areal topology is put forward. The experiments have shown that the method works well

关 键 词：等高线 高程点 高程注记 匹配 

分 类 号：P283[天文地球—地图制图学与地理信息工程]