截交线、相贯线的构形思维分析

Thinking analysis shape forming for line of intersection and intersection

图样是准确表达物体的形状、尺寸及其技术要求的图形;图样中截交线、相贯线是绘制和阅读图样时经常碰到的两个问题,是构形思维的特征之一。针对图样中截交线、相贯线的易错问题,分析了截交线、相贯线的易错问题构形思维方法,并以作图实例进行了分析论证。

The drawing is a graph which describes the shape,size and technique demand of an object.Two problems,which have the features of shape forming thinking,are the line of intersection and the intersection in the drawing that are often met when the drawing is draffed and read.Aimed at the problems of the line of intersectin and the interwection which are easily created,shape forming thinking were analyzed the drawing examples were demonstrated.