魔阶图的设计及计算机绘制

The Drawing of Four ──Flight Magical Stair and Its Comnputerization

本文系统地讨论了三等正轴测图中四段式魔阶的级数、分段级数、升高等参数性质和四段式魔阶的型式设计及计算机的实现方法，解决了给定总级数魔阶的分段级数型式的确定及各型式魔阶图的绘制，为开拓魔阶图的应用提供了可靠的图形信息。

This treatise systematically stdies the properties of paraineter such as thetotal step number,the step number of every flight and rising height of a magical stair inisometric projection drawing as well as types designing for the four-flight magicalstair, And accordingly computer’s drawing procedure is designed, which may give theselection for the step nu mber of every flight with a total step number given and thedrawing for various types of magical stairs. All this provides the dependable informationfor the wide application of magical stair’s diagrams.