基于分布式组件动态集成的网络GIS设计模式及其实现

Internet GIS design model based on dynamical integration of distributed components and its implementation

提出了一种基于分布式组件动态集成方法的网络GIS开发模型。该模型允许用户定制扩展功能组件,提供扩展组件与原有系统实时、动态、无缝集成机制,并可在一个平台上提供实现C/S及B/S两种网络GIS工作模式,并提供单机模式的后台数据管理系统,满足了中小型应用系统对网络GIS平台功能小而全的需求。阐述了该开发模型的概念设计、架构设计及关键技术,并开发实现了一个原型系统FreeXGIS,验证了该模型的可行性。

This paper presented a novel development approach for Internet GIS based on dynamical integration of distributed components technology, which was potential to overcome the problems. Internet GIS applications developed with this approach could run at multi-mode, including stand-alone and network, and allowed users to add expected GIS components to the system at run time. Explained the mechanism of each working mode and discussed key technologies supporting the mechanism. To vali- date feasibility of the approach, proposed a prototype called FreeXGIS. It provided a paradigm for developing lnternet GIS applications by employing distributed GIS components. Also presented several future works to enhance the performance and practicability of Internet GIS developed with this approach.