topographic database

Modeling of Incremental Information in Topographic Database and Its Description Based on RDF

地形数据库增量信息数据建模及其RDF描述

Building and Updating of 1 ∶ 500 Basic Topographic Database in Shanghai Municipality

上海市1：500基础地形数据库建设和更新

Preliminary Research on Measuring the Amount of Information of Topographic Database Based on Entropy

基于信息熵的基础地理信息地形数据库中信息量度量方法初探

1 ∶ 50 000 topographic database is one of the most important databases in National Fundamental Geographic Information System, and it is also the database platform in National Spatial Data Infrastructure. It has substantial data contents and brings huge engineering work on database construction.

国家基础地理信息系统1∶50000数据库是构建数字中国空间地理框架的重要组成部分，1∶50000地形数据库作为1∶50000数据库的重要数据内容，是数据内容复杂、建设难度最大的数据库。

To discuss the construct of topographic database of the foundation space information systems of city

城市基础空间信息系统图形数据库建设的探讨

It is possible for the vector topographic data to remain many problems after importing to personal database. So the author did some research on how to check the problems and how to combine the data-check in the database and the pretreatment before importing to database.

如何通过各种方式检查出矢量地形数据入库后仍存在的问题，如何将对矢量地形数据库的GIS数据检查和对原始矢量地形数据的检查进行统一安排，作者也提出了一些有价值的见解。

Automatic Updating Method of Topographic Database

地形图数据库更新的自动化方法

Modeling of incremental information of topographic database based on OEM

基于OEM的地形数据库增量信息数据建模

Data Design and Database Building for 1 ∶ 50000 Topographic Database

国家1∶50000地形数据库的数据设计与建库