不求灭点作长方体的两点透视图

Not Locating the Vanishing Points to Construct a Two-point Perspective of the Rectangular Block

本文提出当灭点越出图板之外时,不求灭点而用几何作图求作长方体的两个灭点透视方向的作透视图方法。

This paper provides the construction method of a two-point perspective of the rectangular block by geometric constructions instead of locating the vanishing points when they are outside of the drawing board.