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由平面地形地质图绘成块状立体图,一般是采用透视投影或平行投影的方法。在1955年及1957年作者对应用这两种投影方法来绘制块状立体图作了较详细的论述。但是这些方法还有不够完善之处:如机械的装置、绘图时对原图或投影图的移动及划分等高线间隔刻度等仍感不够方便,同时对二度(正角投影)画法、等度(正角投影)画法及二度正面(斜角投影)画法的论证及说明亦还不够充分。本文就是企图补充这些不足之处,并设
From the topographic map of terrain geological block painted three-dimensional map, the general perspective projection or parallel projection method. In 1955 and 1957, the author made a more detailed discussion of applying these two projection methods to draw a block diagram. However, there are still some imperfections in these methods. For example, mechanical devices are still not convenient enough to move the original image or projection image and divide the contour line intervals during drawing. Meanwhile, the second degree (positive angle projection) Equivalence (positive projection) and secondarily positive (oblique projection) method of proof and description is not sufficient. This article is an attempt to supplement these deficiencies, and set