【摘要】 组件式GIS成为地理信息系统发展的一个重要阶段。组件式软件商纷纷推出各具特色的组件式产品,Intergraph公司推出的GeoMedia,编辑和空间分析功能较强,因而得到广泛应用。对基于GeoMedia开发实践过程中存在的信息查询问题展开研究,采用VC开发语言及COM技术,重新定义了获取记录集的函数,解决了GeoMedia信息查询中存在的问题。更多还原

【Abstract】 Component GIS (ComGIS), a new technology based on COM(Component Object Model),is a mainstream in GIS technology. Recently,this technology develops so fast that more and more ComGIS software booms.GeoMedia,the product of Intergraph, is used widely because of its strong spatial analysis ability.This paper thoroughly reviews GeoMedia’s searching and provides how to get records,implements the problem of searching using Visual C++ and ComGIS software.It may be believed that ComGIS will grow to be an important branch of Earth System Science.Geomedia is to be used widly and plays an important role in Geographic Information Systems. The study helps to understand developing core GIS’s function using VC and ComGIS.更多还原