我们在划线过程中,经常遇到圆心和所需要划的圆不在同一平面上的问题。如用普通圆规,两尖脚间的距离就不是所划的半径。如图1应将两尖角的距离调整为γ为所画的半径,h为两尖角的高低差。但此法的缺点是不够准确,且计算比较麻烦。我 In the process of marking, we often encounter the problem that the circle is not in the same plane as the circle that needs to be drawn. As with the ordinary compasses, the distance between the two spikes is not the planned radius. As shown in Figure 1, the distance between the two sharp corners should be adjusted to be the radius drawn by γ, where h is the height difference between the two sharp corners. However, the shortcomings of this method is not accurate enough, and calculated more trouble. I