给出了三维服装积件的基本图形元素定义与典型服装积件的抽象定义。
After introducing some basic geometric definitions for 3d apparel components, this work presented the abstract definitions for some typical apparel components.
本文讨论了空间数据的拓扑关系，对地图的基本图形元素作了更准确的表述；
This paper discussed the topologic relationship of spacial data and gave an exact description of map graphic elements.
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.
目前参数化设计约束处理技术操作的直接对象是基本图形元素和约束，这在复杂零件参数化时会遇到困难。
The existing parametric design softwares are not safficient for processing the complicated parts We present a new method based on graphics decomposition to solve the problem.
目前参数化设计约束处理技术操作的直接对象是基本图形元素和约束，这在复杂零件参数化时会遇到困难。
The existing parametric design softwares are not safficient for processing the complicated parts We present a new method based on graphics decomposition to solve the problem.
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