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该程序为Java开发出基本的GIS最小系统，能够实现基本的图形功能（如缩放，平移等），结合数据库实现查询功能。在此基础上构建了WebServer，提供远程的地图浏览功能。-the procedures for Java to develop minimum basic GIS system to achieve basic graphics functions (such as scaling, translation, etc.), combining database query. On t