广义直角三角形法图解空间角度问题研究

Research of space angles by graphic method

在利用直角三角形法图解一般位置直线与投影面倾角方法的研究中,揭示了图解一般位置直线与投影面的垂直面倾角的规律,并由此给出了广义直角三角形法,该法拓宽了原直角三角形法只局限于图解一般位置直线与投影面倾角的范围,为图解空间角度问题提供了1种新的简便方法。

In the research of the method illustrating the angle between oblique lines and projection planes by right-triangle method, this paper discloses the law illustrating the angle between oblique lines and perpendicular planes,on the basis of which it brings forward the synthetic method-a simple method illustrating the angle between optional position line in space and the plane, and the angle between planes.