本文介绍一种不受灭点远近限制的成角透视图法，并对其进行几何论证。
This paper introduces a method that we can apply it to draw angular perspective without view points, and it demonstrates this method according to the geometric principles.
采用一个与视灭三角形相似的小三角形作为绘图辅助，同时结合量点法中的分量点概念进行作图，就可以很好地解决这个难题，而且能更加快速准确地绘制两点透视图。
This paper introduces the method of using a small triangle which is similar to the vision-vanishing point triangle to solve the problem, so that making perspective drawing more rapidly and precisely.
连接灭点与已知点的透视，决定了所作直线的透视方向。
The perspective direction of a desired line is usually determined by connecting a given point with the vanishing point of this line.
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