摘要
万维网地理信息系统(WebGIS)是地理信息系统(GIS)发展的一个重要方向,它具有访问范围广、平台独立性高、系统成本低且操作简单等特点。本文在介绍组件对象模型/分布式组件对象模型(COM/DCOM)技术的基础上,结合WebGIS开发中可能遇到的瓶颈,把二者结合,将一个基于组件的四层开发模型进行应用,解决系统在物理以及逻辑上的独立,为WebGIS中存在的安全、通信速率及GIS应用二次开发等难题的解决提出新方案,以达到WebGIS开发的时间和效益的双结合。
World wide web geographic information system （WebGIS） is an important direction to geographic information system （GIS）. Although development time is not very long, it has formed large-scale industries because of being promoted by supporting technology, such as mapping technology and computer technology. WebGIS has a wide range of visit, high platform indepondence, low system cost, and ease of clinical manipulation, which have been a main direction of GIS development. On the basis of component object model （COM） and distributed component object model （DCOM）, combining probable bottleneck in WebGIS development, a four-component-based model of development was applied to realize combination of time and effective.
出处
《森林工程》
2009年第1期86-88,共3页
Forest Engineering
基金
国家"十一五"科技支撑项目(2006BAD10A03-5)
国家863高新技术研究发展计划(2006AA10Z244)
哈尔滨市科技攻关计划项目(2007AA1CG077-1)
