基于工程图学投影变换板图构建的研究

培养人们对三维几何形体及相关位置的空间逻辑思维能力和形象思维能力,是工程图学研究的主要任务之一。用投影变换来帮助学习者培养空间想象能力是学习中必用的手段和方法。讨论了工程图学研究过程中投影变换时如何合理、有效地利用有限空间来构建板图、如何恰当选择例图的方法等问题,同时提出了书中用图的不足及改进方法。

Projection transform graphic reconstruction on engineering drawing

To train people the space logical thinking and image thinking ability to three-dimensional geometry shape and relevance location,is one of the major task in engineering drawing research.It is necessary to learn the method of using projection transformation to train people the ability of spatial imagination.This paper discusses how to make use of the limited space rationally and effectively during projection transformation and how to choose proper illustrations,at the same time it points out deficiency of the material graphics and gives out an improvement method.