计算机辅助机械绘图语言与系统设计

本文针对我国计算机绘制机械图领域内的现状,提出了一种易于掌握的机械图描述语言,以及一个相应的功能较强的绘图系统。该系统便于图形输入,并具有图形的平移、旋转、映射等功能,和较强的剖面域的处理能力。系统带有一个标注专用的笔写式字符库(包括汉字和专用符号)。该系统用 FORTRAN 语言写成,便于向大、中型计算机和存储容量较大的微型机移植。

This paper presents a very handy descriptive language used for mechanic graphing and a corresponding powerful graphic system,so as to meet the present requirementof domestic computer aided mechanical graphing field.This system possesses importantgraphic features of easy input,shifting,rotating and reflexing,and a strong handlingcapability for sectional field.This system has a character library(including Chinesecharacters and special characters)dedicated specially to drawing notation.This system is written in FORTRAN language in order to be easily transfered tolarge and middle sized computers as well as micro-computers with bigger storage.