Analyses and Solutions of Specific Cases in Spatial Angles Calculation  

作　　者：ZHANG Ai-mei QIU Yi SUN Bo-lu FANG Dong-yang 

机构地区：[1]School of Mechanical Engineering, Zhengzhou University, Zhengzhou 450002, China

出　　处：《Computer Aided Drafting,Design and Manufacturing》2006年第1期57-62,共6页计算机辅助绘图设计与制造（英文版）

基　　金：Supported by National Natural Science Foundation Council of Henan Province (011106300)

摘　　要：Aiming at the specific cases existing in spatial angles calculation the paper investigates five types of them： lines in specific orientations, planes in specific orientations, two lines defining a plane and angles between them, orientations and relevant parameters of a line lying on a plane, and orientations and relevant parameters of a plane passing through a line. The results are presented. The strategy presented provides a firm theoretic basis for the application of the new method of spatial angles calculations.Aiming at the specific cases existing in spatial angles calculation the paper investigates five types of them： lines in specific orientations, planes in specific orientations, two lines defining a plane and angles between them, orientations and relevant parameters of a line lying on a plane, and orientations and relevant parameters of a plane passing through a line. The results are presented. The strategy presented provides a firm theoretic basis for the application of the new method of spatial angles calculations.

关 键 词：engineering graphics spatial angles automatic calculation specific cases 

分 类 号：TP391.72[自动化与计算机技术—计算机应用技术]