The relative system, such as vector graphic system, database system, and space information system, are discussed in the paper, the basic principle and realize method are discussed in the paper also.

本文阐述了人机系统软件相关的矢量图形系统、数据库系统、信息系统、空间信息分析系统，给出了基本原理和技术解决方案。

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The system can provide the drawing of basic graphic element, the connection with attribute database, and meet the basic need of the field management.

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。

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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。

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