【摘要】 本文论述了一个在IBM PC/XT上开发成功的通用交互式计算机绘图系统。该系统采用键盘控制大十字光标在屏幕上进行交互绘图并能在绘图机上输出图形。它除了具有类似于AutoCAD的大部分功能外,还增加了一些新的功能,如二维几何构形等。其图形编辑方式独树一帜。本文就二维图形主要研究了以下几方面的问题:图形数据结构,图形菜单设计方法,基本图形的生成,二维几何构形,剖面线设计,尺寸标注,表面粗糙度设计和矢量汉字库的建立。更多还原

【Abstract】 A general interactive micro computer graphic system is sucessefully developed.Thissystem can display graph on screen using the keyboard to control a big“+”shape cursor andcan output to plotter.It has a large amount of function alike to Auto CAD,some new func-tions are added,for example,two dimensional geometric modeling and so on.In addition,ithas a particular editing manner.Some problems are studied,such as the graph data struc-ture,graph menu designing way,the generation of basic graph,two dimensional geometricmodeling,design of section line,dimension marking,surface rough sign and vector characterlibraries,etc.更多还原