深究工程图读图方法——线面分析法

Research on Line-Surface Analysis Method to Improve Engineering Drawing's Reading Ability

线面分析法是工程图组合体识图部分最常用的方法之一。它是根据面、线的空间性质和投影规律来分析形体的表面或表面间的交线与视图中的线框或图线的对应关系,从而进行看图、画图的方法。本文是在线面分析法的基础研究之上,增加分析了相邻两线框和线框中线框的空间含义,在一个线框中空间含义中又增加划分出曲曲相切的可能。对基础线面分析法做出的深入补充分析可以帮助学生提高工程图读图能力。

Line-surface analysis method is a very important part in the course of the engineering drawing＇s reading methods. It is the method which is based on the projection of the plane and the line to image the three-dimensional shape of an object. In this paper, this method is carried out in depth. The further research of the method can help student to establish the corresponding rela- tionship between plane drawing and spatial shape.