地物矢量数据的检查方法

The Checking Method of Terrain Feature Vector Data

研究了地物矢量数据的质量检查问题。采用数据结构逐项匹配的方法对地物属性进行自动检查 ,用地物与最新的数字调绘片叠加显示的方式来检查地物采集的位置精度、属性精度、数据的完整性以及数据的现势性 ,错误或遗漏将直接标注在调绘片上。实验表明 ,用文中提出的方法检查地物数据比用传统方法准确、有效。

The checking method of feature data is discussed in this paper. Data structure matching is used to check feature attribute data automatically. Symbolized feature data is displayed on the new identified photographs to check position precision, attribute precision, data integrality and timeliness of feature data. Errors leaks are distinctly marked on the identified digital photographs. The experimental results express that the method presented in the paper is more reliable than traditional method.