| 专题地图地理底图数据库的建立与管理 |
| |
| 引用本文： | 张新长,艾廷华.专题地图地理底图数据库的建立与管理[J].武汉大学学报(信息科学版),1993(Z1). |
| |
| 作者姓名： | 张新长 艾廷华 |
| |
| 作者单位： | 武汉测绘科技大学地图制图系，武汉测绘科技大学地图制图系 武汉珞瑜路39号 430070，武汉珞瑜路39号 430070 |
| |
| 摘 要： | 本地理底图数据库系统是一个小型的数据库系统,它具备了地图数据库的基本功能,适应同一底图服务多种专题图编制的要求,提供多种检索途径;运用大量的位操作,使得数据库结构具有动态性、灵活性。将频繁交换的数据纳入内存,加快了系统运进速度;通过多边形组织,可自行建立专题要素与底图要素的图形关系,建立区域间层次关系,减小数据采集工作量。
|
| 关 键 词： | 专题地图 地理底图 地图数据库 |
Creating and Managing of the BAse-map Database in the Thematic Mapping |
| |
| Zhang Xinchang,Ai Tinghua Dept.of Cartography,WTUSM. Luoyu Road ,Wuhan,China.Creating and Managing of the BAse-map Database in the Thematic Mapping[J].Geomatics and Information Science of Wuhan University,1993(Z1). |
| |
| Authors: | Zhang Xinchang Ai Tinghua Deptof Cartography WTUSM Luoyu Road Wuhan China |
| |
| Institution: | Zhang Xinchang,Ai Tinghua Dept.of Cartography,WTUSM. Luoyu Road 39,430070,Wuhan,China |
| |
| Abstract: | Base-map database system is a small one which possesses some basic functoins ofcartographic database. In order to meet reguirements of selecting bade-map produced by rari-ous of the themalic mapping,it supplies a serious of selection ways. By using a large numberof bit-operations,the database strucure is active and flexible. The data which freguenly ex-change are stored in the main memory,so that the database can run guickly. The system isable to organize polygons and hierarchical relations between regions automaticaly,reducingworks in daba capture. |
| |
| Keywords: | thematic mapping base-map cartographic database |
| 本文献已被 CNKI 等数据库收录！ |
|
