basic graphic system

基本解释

The basic graphic formula of crossover pipe system is introduced.
介绍了跨越管系统的基本图式。
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。
Through abstracting the structure of shafting parts, the system defines basic graphic units and realizes the characteristic modeling of shafting parts through Boolean operations on graph units.
系统对轴系零件结构进行抽象，设定了轴系单元基本体素等，通过特征拼合实现了零件的特征造型。