大比例尺GIS数据更新服务框架综述  

Discussion on Large-Scale GIS Data Update Service Framework

作　　者：王文江[1] 张连文[1] 周鑫[1] 

机构地区：[1]天津市测绘院,天津300381

出　　处：《测绘与空间地理信息》2013年第6期69-71,74,共4页Geomatics & Spatial Information Technology

摘　　要：CAD数据在图形表达、存储和管理上表现非常完美,能满足现在大部分的图形绘制应用。但是,CAD数据不能很好地保存和管理与空间位置相关的属性信息,使得这种数据格式并不能很好地支持图、属兼顾的GIS应用。从现有的CAD数据转换、更新GIS数据库并不是一个简单的数据格式转换的过程,其间涉及到数据模型的转换、存储管理方式改变等众多复杂问题,其研究的进展将会直接影响到目前GIS数据更新模式、过程。本文从CAD、GIS数据特点入手,以将现有CAD数据采集自动更新到GIS数据库目标,从系统架构、功能结构和工作流程等几个方面对大比例尺GIS数据更新服务框架展开论述。The performance of CAD data in graphic expression, storage and management is very perfect. It can meet most of the graphics drawing application. Because this kind of CAD data is not good at the preservation and management of the properties related to the spatial location information, which means this data formats can＇t well support graphics and attributes of both GIS application. Converted from existing CAD data and then updating the GIS database is not a simple process of the data format conversion. It relates to the transformation of the data model, change in storage management and many other complex issues. The progress of its research will directly affect the current GIS data update mode and the process. This article is based on the characteristics of the CAD and GIS data. It targets automatically updating of the current CAD data acquisition to the GIS database, and discusses from several aspects of the system architecture, functional structure and workflow of large - scale GIS data update service framework.

关 键 词：CAD数据 GIS数据 地形图更新框架 

分 类 号：P208[天文地球—地图制图学与地理信息工程]