关于地理信息理论的若干思考  

Some Thoughts about Geographic Information Theory

作　　者：李德仁[1] 

机构地区：[1]武汉测绘科技大学校长办公室

出　　处：《武汉测绘科技大学学报》1997年第2期93-95,110,共4页Geomatics and Information Science of Wuhan University

摘　　要：地理信息系统是运行在信息高速公路上的重要列车，它以应用为目的，以技术为导引，为全社会涉及空间地理数据的各行各业服务。随着电子计算机技术、通讯技术、空间定位技术、遥感技术和可视化技术的发展，地理信息系统的硬、软件环境，数据采集、存贮、分析和表达等手段，势必要不断进步。在此形势下，本文试图对地理信息理论问题作出探讨和思考。主要包括：各种形式空间数据在计算机中的表示；空间数据的自动采集与更新；空间数据的质量及数据不确定性；ＧＩＳ数据的空间查询与分析；空间数据的表达与显示（可视化、符号化和多尺度表示）。在讨论和分析中注意与传统的以纸质地图为介质的“模拟法ＧＩＳ”相比较。Geographic information systems are very important vehicles running on Information Superhighawy and serve many different users with geo spatial data. The two characters of GIS are technology driven and application oriented. With the rapid development of computer technique, communication technique, space positioning technique, remote sensing and visualization technique GIS hardware and software environment and the methods of spatial data acquisition, storage, access, analysis, representation and visualization will be improved continually and rapidly. Facing this situation the author try to think about geographic information theory. Main discussion in this paper includes: optimal representation of spatial data with attribute data in computer, automatic acquisition and updating of spatial data, spatial data quality and uncertainty, spatial query and analysis of GIS data, visualization symbolization and multi scaling representation of spatial data etc. On the discussion we pay more attentions to compare and to distinguish the differences between computer based GIS and paper map based “analogue GIS” and to consider the developing tendency of tomorrows computer technique and information science.

关 键 词：地理信息理论 空间数据库 地图数据库 GIS 

分 类 号：P9[天文地球—自然地理学]