该系统能够实现基本图形元素的绘制，并能与其属性数据进行连接，能够满足农田管理的基本需求。
The system can provide the drawing of basic graphic element, the connection with attribute database, and meet the basic need of the field management.
首次提出将交互式图形系统中各种图形对象类划分为基本图元类、静态聚合对象类和动态聚合对象类的分类分法。
The classification of class in interactive graphic system is proposed firstly by the basic primitive class, static aggregation class and dynamic aggregation class.
首次提出将交互式图形系统中各种图形对象类划分为基本图元类、静态聚合对象类和动态聚合对象类的分类分法。
The classification of class in interactive graphic system is proposed firstly by the basic primitive class, static aggregation class and dynamic aggregation class.
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