多源空间矢量数据一致性处理技术探讨

摘要

Nowadays, the rapidly development and widely use of GIS(Geographic Information System)have gathered a large amount of data resource. So, the quality of spatial data has become a research hotspot in the field of the interna-tional GIS. As an important source of spatial data’s produce and update, the problems existing in the consistency proc-essing of spatial vector data are drawing people’s more attention. Based on the multi-source spatial data we have had, this paper will describe the produce of those inconsistencies and discuss the methods of consistency processing. This paper also introduces multi-source spatial data’s consistency processing methods in the aspect of the geometric position, attribute characteristics and relationship of elements. In addition, this paper also focuses on finding the way to improve the quality and present situation of the space vector data.%地理信息系统的迅速发展和广泛应用积累了大量数据资源，空间数据质量已然成为国际地理信息系统领域的研究热点。作为空间数据产生和更新中的重要数据来源，空间矢量数据的一致性处理问题也更加为人们所关注。本文立足现有的多源空间数据，阐述了多源空间数据不一致性的产生，并对多源空间矢量数据的一致性处理方法进行了探讨，介绍多源空间矢量数据在几何位置、属性特征和要素关系方面的一致性处理方法，提高空间矢量数据的质量和现势性。