摘要
内蒙古自治区地质调查院从2000年开始1∶20万数字水文地质图空间数据库的建设工作,经过两年多的工作实践,积累了一套较为完整的工作方法及流程,本文就建库工作方法和流程的建库准备、图形的矢量化、分层文件的建立、属性表的形成及数据格式的转换五个阶段展开论述,同时列举了建库工作中的几点注意问题,旨在为后续建库提供可借鉴的经验。
With the development of the information digitization, especially with the use of GIS (Geographical Information System),establishment of spatial database has become an important part of the land engineering information digitization in recent years. The result of databasebuilding in Geological Survey of Inner Mongolia shows that efficient methods and technologicalprocesses have been established for building spatial database of 1∶200000 digital hydrogeological map.Five aspects of the methods and technical processes for building database are discussed in this paper. They include preparing for building database, captiving data from maps, building themes, forming tables of attributes, and changing format for the database. The purpose of this work is to supply useful experiences.
出处
《水文地质工程地质》
CAS
CSCD
2003年第2期65-68,共4页
Hydrogeology & Engineering Geology
