摘要
本文介绍了用面向对象的程序设计语言Ｃ十＋开发机械ＣＡＤ图形子系统的方法。作者在文中同时介绍了用Ｔｕｒｂｏ－Ｃ＋＋／Ｂｏｒｌａｎｄ－Ｃ＋十实现该法的实例。该法将机械ＣＡＤ的图形子系统分解为设备相关和设备无关的两个子系统分别进行开发。本文介绍的机械ＣＡＤ图形子系统（简称：ＭＤＧＳ）是用Ｃ＋十程序设计语言实现的类库，它特别适合于绘制机构简图及进行各种平面连杆机构运动的动态模拟，同时它也适合于绘制一般工程图形。。ＭＤＧＳ可对图形进行放大、平移、旋转、存盘及恢复处理等，使用十分方便。ＭＤＧＳ还有易于使用、，维护、移和功能扩充等诸方面的特点作者在文中给出了用ＭＤＧＳ绘制的各种图形的实例，并成功地将其应用于平面四连杆机构的ＣＡＤ中，结果证明了该图形子系统的实用性、方便性与正确性。ＭＤＧＳ也可方便地应用于机构运动分析、齿廓范成及凸轮轮廓包络形成等。
This paper introduced a method of developing the CAMD graphic subsystem using the objict oriented programming language C++. The authop introduced simultaneously in this paper living example of realizing this method by the use of Turbo C++/Borland C++. This method resolves the CAMD graphic subsystem into two subsystems of facility correlation and facility irrelevancy and go on developing separately. The CAMD graphic subsystem (called for short as MDGS)introduced in this paper is a class library achieved by the use of C++programming language. This subsystem is especialy suitable for the plotting of mechanism sketch and for carrying out the dynamic simulation of various kinds of plane mechanical linkage movement and suitable for plotting general engineering graphs as well MDGS is easy to employ,it can carry out treatments on figures enlargement, translation, rotation, saving into disk, restoration and so on.MDGS has the characteristics in many respects for its easy application, maintenance, removal and expansion of functions.In this paper the author provided living examples of plotting various kinds of figures by the use of MDGS and it has been applied successfully on the CAD of plane fourbar linkage,the result identified its praticality,property of convenience and correctness of this graphic subsystem.MDGS can also be used on the kinematic analysis of mechanisms,on the generation of tooth profile and the evelope formation of cam Profile.
出处
《机械设计》
CSCD
北大核心
1996年第6期30-34,共5页
Journal of Machine Design
关键词
机械制图
CAD
图形字系统
Computer aided machine design (CAMD) Graphic subsystem MDGS FIgure Processing
