基于整体模型的城市GIS数据共享交换平台

Urban GIS Data Sharing and Exchanging Platform Based on Holistic Model

针对传统的城市GIS数据交换平台只能共享空间数据的弊端,本文采用面向对象技术,设计了一种包含地理要素自身信息和要素间关联信息的城市GIS整体数据模型,并对整体数据模型应用中的关键技术:GIS整体数据转换技术进行了研究。结合无锡市地理信息共享交换平台项目的建设,给出了模型在基于中心数据库模式的城市GIS数据交换平台系统中的具体应用过程,以期对其他城市同类系统的建设提供一定的参考价值。

The shortcoming of traditional urban GIS data exchanging platform system is that it can only share geospatial data. This paper designs a urban GIS holistic data model which contains both geographical feature itself information and relational data based on object oriented technology, and analyzes key technology in the model application, i. e. GIS holistic data format transfer. Then, the process of model application is exhibited by the sharing platform system of GIS based on center database in Wuxi city, which could provide a reference to other cities. Finally, the possible future development of the model is discussed.