文章对开发基于因特网的地理信息系统的关键技术进行了总结,阐述了图形核心和网络数据库技术原理和开发方法。由于应用开发贴近核心层,系统运行效率高,可以灵活的扩展和缩减,以适应不同的应用规模、网络带宽环境和特殊商业应用需要。%The key technology for developing Internet GIS and application is analyzed. It exponents descriptive graphic system and network database technology principle and developing methodology. The viewpoint of developing Internet GIS is put forwared.
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