一种基于WebGIS的事件管理器

Event Manager Based on WebGIS

WebGIS开发过程中,随着RIA技术的引入,事件的使用愈加频繁,传统的事件使用方式效率低下,出错率高,难以满足实际需求,通过对事件处理机制的研究和WebGIS开发实践总结,提出了对事件进行统一管理的思想,并设计了一种基于WebGIS的事件管理器结构.通过在辽河流域水环境管理信息化系统中的应用表明,使用事件管理器简化了WebGIS开发流程,减少了错误事件出现,取得了良好的应用效果.同时该事件管理器的设计思想对传统GIS和应用程序开发中的事件管理也有很好的启示作用.

Along with RIA technology introduced in developing WebGIS,more and more events are used. Traditional way of event use has low efficiency and great mistakes,so it can＇t meet practical needs.According to researching the mechanism of event process and the experience of WebGIS development, a new idea that all events should be managed totally was brought forward, and a framework of event manager was designed. Through the application in the LiaoHe River water environmental management system, it turns out that applying event manager simplifies the procedure of WebGIS development,avoids mistakable events, obtains satisfactory results. Also the framework of event manager is a good way to solve event management in traditional GIS and application program.