一般位置直线与一般位置平面相交可见性判断方法的研究  

Ways to Examine the Visibility of Intersection of the Oblique Line and the Oblique Plane

作　　者：罗宏博[1] 

机构地区：[1]陇东学院机械工程学院,甘肃庆阳745000

出　　处：《陇东学院学报》2014年第1期25-26,共2页Journal of Longdong University

基　　金：陇东学院青年科技创新基金资助项目(XYGK1302)

摘　　要：针对画法几何与机械制图教学中一般位置直线与一般位置平面相交并判断可见性这一难点,总结出辅助平面法和换面法求交点及根据重影点法判断可见性这两种既可靠、简便,又准确、易于掌握的新方法。This paper mainly discusses the oblique line and the oblique plane as well as the ways to exam -ine the visibility of their intersection in the descriptive geometry and mechanical drawing teaching .It con-cludes that using auxiliary plane and the conversion surface methods to find the intersection and adopting the method based on double point to examine the visibility are two reliable , simple , accurate , easy and novel methods .

关 键 词：线面相交 辅助平面法 换面法 重影点 

分 类 号：TH126.2[机械工程—机械设计及理论]