摘要
量点作图法的关键是如何提高图幅利用率。通过对量点法中灭点远超出图板的难点进行分析,从几何学角度研究,在30o^60o量点法的基础上,提出一种利用辅助灭点扩大对象表现区域的新方法。该方法准确、简单,通过省去量线外侧的非作图区域,有效地减小了透视图失真。分别阐述了在真高线上和一般位置寻找辅助灭点的原理与求法,并通过透视图绘制实例予以详细说明。
How to draw sufficiently within the drawing limit is the key problem of the drawing method with measuring points. Previous research was less focused on the vanishing points beyond the drawing limit. On the basis of geometrical research, a new method that draws sufficiently with assistant vanishing points is provided. It is proved accurately and simply, and it can efficiently expand the area of drawing within the limit. The distortion of drawing is also decreased by omitting the excrescent area from the paper. The theory and the example about the drawing technique of assistant vanishing points is included.
出处
《工程图学学报》
CSCD
北大核心
2006年第6期98-101,共4页
Journal of Engineering Graphics
关键词
工程图学
作图法
辅助灭点
图幅
engineering graphics
drawing technique
assistant vanishing point
drawing limit
