摘要
地质图空间数据库的建立对于基础地质图件的快速更新、信息资源共享以及基础地质科学研究具有重要意义。全国1∶100万地质图空间数据库(2005年版本)是以1∶50万地质图数据库为基础,充分吸收近年来1∶25万、1∶5万区域地质调查的新资料新成果,应用当代最先进的地质科学理论、现代信息技术和先进制图学理论,使用中国自主开发的MapGIS平台,结合ArcGIS、Access等软件进行研究建立的。数据库包括地理底图库、地质图库、元数据库、外挂岩石地层库,数据量约1.6GB。数据库管理系统具有较强的图幅检索、查询、自动成图、自动生成图例等功能。
The construction of the geological map spatial databases has great significance for the fast renewing of basic geological maps, sharing of information resources and study of basic geoscience. The 1:1 million geological map database (2005 edition) was constructed on the basis of the 1:500,000 geological map database. The 1:1 million Geological Map Spatial Database of China was built with the softwares such as MapGIS, ArcGIS and Access and by absorbing fully the latest information and outcomes of 1:250,000 and 1:50,000 geological surveys and using the most advanced geoscience theories, modern information technology and advanced cartographic theories. The databases include the geographical map database, geological map database, metadata base and rock/ strata database, with a data quantity of 1.6 GB. The spatial database management system possesses strong functions of map retrieval and inquiry, automatic map making and automatic legend drawing.
出处
《中国地质》
CAS
CSCD
2007年第2期359-364,共6页
Geology in China
基金
中国地质调查局地质大调查项目(1212010511501)
科技部项目(G99-A-01-d-0202)资助。
关键词
地质图数据库
地理底图库
查询
检索
GIS
geological map database
geographical map database
inquiry
retrieval
GIS