有关3D图样若干问题的思考

Some Thoughts on 3D Drawing

由定义性描述并介绍的2类3D建模方法，引出并定义3D图样，揭示CAD／CAM模式下的工程设计无法用现行制图标准体系下的传统工程图样来表达的事实，并分析了无法表达的原因，探讨3D图样表达与交流的方式，提出建立系统的3D图样标准体系是工程图学发展的迫切需要。

Two types of 3D modeling approach are described and introduced by the definition elicit and define 3D drawing, which reveal the fact that it is impossible to express the CAD/CAM project design by traditional ones using the current draw- ing standard system. This paper analyzes the reason for that fact;discusses the expression and communication of 3D drawing and figures out the pressing need to bring out a systematical expression and communication approaches for 3D drawing and the related standard system.