比例参数在参数化工程图样生成中的应用研究

Creating of Parametric Engineering Drawing Using Scale Factor

在开发AutoCAD的参数化设计软件中,不同比例工程图样的生成和布局设置存在字体和标注难统一的问题。论文中介绍了针对程序设计和图样生成来调用比例因子的方法,解决了CAD系统中字体、标注难统一,灵活布局困难的问题。保证了在任意比例下生成的工程图样,其中的文字高度和尺寸标注均符合国家标准的要求,并满足了灵活布置图面的要求。

The scale factor of drawing is referred as a crucial parameter during developing the parametric design software. In order to build the standard 2D engineering drawings, a method that the scale factor is properly applied in the program of parametric design is provided. Some problems are dealt with in CAD system that is developed with ObjectARX, such as un-uniformity of the text and dimension, flexible configuration of the several drawings with different scale etc. All of the engineering drawings which are created with the different scale by this CAD system are able to meet the requirements of engineering drawing standards. The different scale drawings of assemblies and parts can be collocated randomly in the same blueprint, but their high of text and style of dimension are assured uniform.