平面与基本实体体素相交性快速测试方法  

On a Rapid Test Method for the Intersection between Plane and Basic Primitives

作　　者：刘斌 肖跃加 包小红 马莎 

出　　处：《华中理工大学学报》1997年第2期79-81,共3页Journal of Huazhong University of Science and Technology

基　　金：国家自然科学基金

摘　　要：在实体造型过程中，往往需要进行平面与基本实体体素的求交运算．为了加快求交速度，减少不必要的求交运算，应对平面与基本实体体素是否相交作快速测试．为此，提出了实体造型系统中平面与基本实体体素如圆锥体、圆柱体、球体和圆环体等进行相交性快速测试的一种方法．该方法通过坐标变换和简单的Ｚ坐标比较。During solid modeling, it is usually necessary to find out if there exists an intersection between plane and basic primitives. In order to find it quicker and to reduce some unnecessary intersecting operations, a rapid test method for determining the intersection between plane and basic primitives such as cone, cylinder, sphere and torus is proposed. The method is based on coordinate transformation and a simple comparison of the coordinates Z .

关 键 词：实体造型 平面 基本实体体系 CAD 相交性 

分 类 号：TP391.72[自动化与计算机技术—计算机应用技术]