【摘要】 基于面向对象的地理信息系统技术,介绍利用组件技术及控件M apOb jects(MO)进行二次开发的特点与优势。结合城市地理信息公众查询系统原型的开发,详细阐述了运用高级程序语言C#和组件MO开发G IS应用系统的方法。该系统除具有一般管理系统的功能之外,还具有G IS所特有的空间查询和分析功能。用同样的技术和方法可以推广到建立同类型的信息系统,对扩大G IS的应用范围和应用领域具有现实意义。更多还原

【Abstract】 Based on object-oriented technology of GIS,this paper introduces characteristic and advantage of second development system using ComGIS and MapObjects.Combining with the development of city GIS Public Query System,this paper elaborates the method of developing GIS application system using advanced program langue C# and MO.In addition to the function of common management,this system has proper function of GIS in spatial analysis and query.By the same method and technology,the similar system can be established,which has practical significance for enlarging application scope and field of GIS.更多还原