摘要
数字地图成果常会出现各种差错或缺陷，其中要素几何关系缺陷出现概率较高。本文结合数字地图的特点，通过分析要素之间的几何关系，归纳了其可能出现差错的各种情况，给出了要素几何关系自动检查的7种算法，介绍了几何关系自动检查方法在数字地图质量检查软件MapCheck中的具体实现。
There are many kinds of defects in digital map, and the geometric relationship mistake is the major one. Based on the characteristics of digital map, the paper analyzes the geometrical relationship between elements, and summarized various kinds of possible errors. After that, seven algorithms for automatic checking geometric rela-tionship errors are given. At last, the method for geometric relationship automatic checking employed in the Map- Check software is introduced in detail.
出处
《测绘科学与工程》
2011年第4期1-5,共5页
Geomatics Science and Engineering
关键词
数字地图
几何关系
自动检查
digital map
geometric relationship
automatic checking
