提出了一种基于特征的动态滑动匹配算法，用于从零件CAD产生的图形交换文件中识别基孔类型、提取基孔的形位参数。
A feature based dynamic slide match method for recognizing holes type extracting holes shape and location parameters from CAD exchange files is propsed.
本文对AUTOCAD中的图形交换文件(·dxf文件)作了进一步的分析，并阐述了如何将图形交换文件转换成图形压缩文件。
In this paper, We further analyse the exchange files (. DXF files) of graphics in AUTOCAD. We also elaborate how to turn the exchange files of graphics into the compressible files of graphics.
讨论了如何利用AUTOCAD的软件接口图形交换文件开发冷冲模CAD系统，对冷冲模CAD系统的主要模块，数据结构进行了详尽的描述．。
This paper introduces a way how to develop cold punched dies CAD system with AUTOCAD software interfaces, The main model and data structure is described in detail.
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