摘要
就工程图学中直线的几个空间几何问题,如直线上重影点的标注、投影面平行线与垂直线的区分、特殊情况下两直线相对位置的判断等问题进行讨论,提出了自己的看法及求解方法。
This article first discusses some space geometric problems such as the marking of ghost dot in the line, the specification between parallel line of projective plane and vertical line of projective plane, the judgment between relative position of two line on specific situation and then presents some insights and relevant solving method.
出处
《安徽建筑工业学院学报（自然科学版）》
2005年第6期103-106,共4页
Journal of Anhui Institute of Architecture(Natural Science)
关键词
重影点标注
平行线
垂直线
侧平线
相对位置
可见性
,ghost dot＇s marking
parallel line
vertical line
relative position
visibility
