图形的参数与可视化管理库的研究

在机械 CAD/ CAM中 ,零件的相同结构的参数化是提高设计速度的重要标志之一。本研究针对Auto CAD平台上的三维实体功能以及 PDB管理功能的 DCL 技术 ,提出了利用标准结构的主要特征参数实现原型图的参数化方法。在 DCL 界面利用标准结构的三维实体模型实现图形库的可视化 ,原型图的参数化引入了特征参数。原型图的参数化与 DCL 界面用 Auto L ISP语言编写 ,虽然图的三维图样在目前情况还不符人们的习惯 ,但三维将最终替代二维图样。此方法操作简单 ,易于实现

The studying of graph parameter and visualization

The parametrization of the same structure ofmachine partis an importantsign foradvancing design speed in machanism CAD/CAM.This article elaborates the theory and method for realizing parametrization of the original design.In the DCL interface,graph data videotex has been realized by using standard three- dimension object model,stamp parameter has also been introduced.The parametrization of the archetypal drawing and the DCL interface are depicted with Auto LISP.Although the three- dimension draft have not accorded with folk custom,it would take the place of two- dimension drawings in the near future.This method is simple and easy to be fulfilled.