摘要
本文介绍了适用于机械设计的二维交互性绘图软件包MCAD的数据结构.该软件用C语言编程,在DOS操作系统环境下运行.
The data-structure of a two dimensional interactive draft software package MCAD is introduce d,which is suitable for machinery design. This software is written by C Language and rus under DOS condition.