The Map Symbol base System is one of the indispensable base functions in Electronic Map System.
地图符号库系统是电子地图系统中不可缺少的功能模块之一。
Considering the demand of embedded system, this paper designs and realizes a Map Symbol Base for VNS specially.
结合嵌入式系统的要求，设计并实现了适合嵌入式车辆导航系统的地图符号库。
The Map Symbol Base System is not only one of the basic functions of Geographic Information System, but also an important research issue in GIS.
地图符号库系统不仅是地理信息系统中不可缺少的基础功能模块之一，也是GIS的一个重要研究课题。
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