Abstract:
The transmission, processing and display of spatial data put a higher demand for Web Geographic Information System(WebGIS). This paper focuses on secondary development based on digital earth model, implements Web Mapping Service(WMS) using GeoServer as WebGIS server, builds a pyramid model of data caching mechanism, analyzes the system architecture, and designs the WebGIS based on digital earth. The applications of hydraulics comprehensive integration and flood inundation based on WebGIS demonstrate that it has greater practicability and scalability.
Key words:
Web Geographic Information System(WebGIS),
digital earth,
Web Mapping Service(WMS),
data caching mechanism
摘要： 空间地理数据的传输、处理以及展示对WebGIS提出了更高的要求。基于此，在开源数字地球模型上进行二次开发，采用GeoServer作为WebGIS服务器实现网络地图服务，构建一种金字塔模型的数据缓存机制，分析系统体系结构，设计基于数字地球的WebGIS。通过在WebGIS上水雨情信息综合集成和洪水淹没三维仿真的应用表明，该WebGIS具有较好的实用性和扩展性。
关键词:
网络地理信息系统,
数字地球,
网络地图服务,
数据缓存机制
CLC Number:
JIANG Ren-Gui, JIE Jian-Cang, LI Jian-Xun, HE Ting. Development of WebGIS Based on Digital Earth and Its Applications[J]. Computer Engineering, 2011, 37(6): 225-227.
姜仁贵, 解建仓, 李建勋, 贺挺. 基于数字地球的WebGIS开发及其应用[J]. 计算机工程, 2011, 37(6): 225-227.