图形对象拾取技术在开发CAD系统中的应用  

The Application of Graphic Object Pickup Technology to the Development of CAD System

作　　者：沈荣[1] 廖婷[1] 

机构地区：[1]四川文理学院计算机科学系

出　　处：《四川文理学院学报》2012年第5期72-76,共5页Sichuan University of Arts and Science Journal

摘　　要：在绘图系统中,经常要对图形对象进行平移、旋转、缩放、镜像、错切、投影等诸多变换.在交互式环境中,这些变换又必须建立在对各种图形对象的拾取基础上.对图形对象的拾取技术进行了一些探讨.In drawing system, objects are always transformed, such as moving, rotation, scaling, mirror, projection, and so on. In an interactive environment, those transformations are often established on the basis of the pickup on a variety of graphic objects. So, this paper discusses the technology of picking up graphic objects.

关 键 词：消息 拾取 对象 CAD 

分 类 号：TP317.4[自动化与计算机技术—计算机软件与理论]