GGEarth:一种网络型空间数据应用服务系统设计与实现

GGEarth:A Kind of Network-based Spatial Data Application Service System Design and Implementation

本文提出并设计了GGEarth空间数据应用服务系统架构体系,给出了研究内容和关键实现技术;用以实现以原生GML空间数据库(以及GML文档、KML文档)为标准数据中心,以基于Google Earth内核之客户端为前端的的集数据显示、查询、更新、分析为一体的空间数据应用服务体系;以应用于数字城市、数字旅游及传统网络GIS应用领域。

this paper preposed and designed the software architecture of GGEarth spatial data service application system, the research Content and key implementation technologies were given.This system provides functions of data presentation query update and spatial analysis;which uses native GML spat al database （and GML,KML documents） as thestandard data center, and the client based on Google Earth COM API as the front-end. This system can be applied ：infields of digital city, digital tourism and traditional Web GIS.The authors developed the GGEarth experimental system and ran it with the data of ‘5.12＇ Wenchuan earthquake timing and the model data of digital Jiuzhaigou virtual tourism.Some runing screenshots are also given.