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该文提出了传统GIS应用系统开发中所存在的问题,以此介绍了GIS构件在应用系统开发中的特点,并以MAPINFO公司的构件产品 MAPX为例,详细阐述 TGIS构件在城镇公安综合管理信息系统(PSGIS)中的应用.“,”By putting forward the questions which exits in traditional GIS application system development, this paper introduces the characteristics of GIS components when used to develop application system It also introduces the GIS components practical application in PSGIS, with MapX (the component product of MapInfo)as an example.