原理图设计中的CAD技术

CAD technique in principle diagram design

本文介绍了工程设计中原理图设计中的CAD技术以及软件设计的基本方法。原理图中的基本图形符号是以图形库的方式存在于系统中,此外,根据需要图形库中还可以包含有大量按功能分类的专用模块,从而提高工程设计的效率、准确性和标准化程度。软件设计中采用了屏幕图形菜单技术,通过人机交互输入有关参数即可设计出相应的原理图。整个系统在西文环境下运行,但具有较强的汉字功能和软件兼容性;良好的用户界面使得软件使用方便且符合工程设计人员的习惯。

The CADtechnique and fundamen-tal method of software design in principle diagram de-sigh of engineering are introduced The Basic Graph Symbols in Principle diagram have been built in system as a graphic library and a large number of special modules may be included in it .So the designing effi-ciency accuracy and level of standrdization are raised Using the techniqued of screen graph menu in software design ,the principle diagram can be completed by sending the relevant parameters through man-machine interaction Fig3 Tab0 Ref6