在手工绘制两点透视图时，都会碰到图幅过大造成灭点与视点落在图板之外而难以操作的难题。
By employing this, the two point perspective view can be completed with the auxiliary point even in the extremely difficult situation.
通过对空间任意点的透视模型进行分析，总结推论出两种行之有效的快速手工绘制两点透视图的方法。
Through analyzing the perspective model of arbitrary point in space, two practical and fast methods of drawing two-point perspective are concluded.
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.
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.
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